Protective device of elevator shaft

Abstract

The utility model relates to a protective device of an elevator shaft, which belongs to the field of elevator shaft construction, and comprises a bottom plate, two frame bodies, an aluminum diaphragm plate and a top cover, the two frame bodies are respectively fixed on the left side and the right side of the upper surface of the bottom plate, and the inner side of each frame body is provided with an adjusting structure for adapting to different elevator shaft mouth heights. The adjusting structure comprises a threaded rod rotationally connected to the inner side of the frame body, a driven gear fixedly connected to the outer side of the threaded rod, a driving gear meshed with the top of the driven gear, a rotating rod fixedly connected to the inner side of the circle center of the driving gear, a hand wheel fixedly connected to the other end of the rotating rod, and a threaded block in threaded connection to the outer side of the threaded rod. The lifting rod is fixedly connected to the upper surface of the threaded block. According to the protection device of the elevator shaft, flexible adjustment of the height of the protection device is achieved through the adjusting structure, so that the protection device can easily adapt to elevator shaft mouths with different heights, and special protection equipment does not need to be customized for the shaft mouth with each specific height.

Description

Technical Field

[0001] The utility model relates to a protective device for an elevator shaft and belongs to the field of elevator shaft construction. Background Art

[0002] In the modern construction industry, elevator shafts are a vital component of high-rise buildings, and their safety is directly related to the safety of life and property within the building. Protecting the elevator shaft opening is a key step in preventing safety accidents such as falling objects and accidental falls.

[0003] However, due to the varying heights of elevator shafts across different construction projects, fixed protective devices often struggle to meet these varying height requirements. This requires extensive customization during installation, increasing costs and extending the construction period. Existing elevator shaft protective devices on the market are mostly installed using welding or bolting methods. While these methods provide basic protection, they lack flexibility and adjustability for varying shaft heights. Any change in shaft height necessitates the redesign, manufacture, and installation of new protective devices, which is inefficient and wastes resources. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the utility model provides a protective device for an elevator shaft, which has the advantages of flexible adjustment and reduced construction costs.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned flexible adjustment and reduce construction costs, the present invention provides the following technical solution: a protective device for an elevator shaft, comprising a bottom plate, two frames, an aluminum film plate, and a top cover, wherein the two frames are respectively fixed to the left side and the right side of the upper surface of the bottom plate, and the inner side of the frames is provided with an adjustment structure for adapting to different elevator shaft opening heights;

[0008] The adjustment structure includes a threaded rod rotatably connected to the inside of the frame, a driven gear fixedly connected to the outside of the threaded rod, a driving gear meshed with the top of the driven gear, a rotating rod fixedly connected to the inside of the center of the driving gear, a handwheel fixedly connected to the other end of the rotating rod, a threaded block threadedly connected to the outside of the threaded rod, a lifting rod fixedly connected to the upper surface of the threaded block, a top plate fixedly connected to the top of the lifting rod, three railings fixedly connected to the bottom of the top plate, and a sleeve slidably connected to the outside of the railings.

[0009] Furthermore, opposite side walls of the left and right frames are both fixedly connected with fixing plates, and bolt holes are provided on the inner sides of the two fixing plates.

[0010] Furthermore, the top end of the threaded rod is rotatably connected to the inner top wall of the frame, and the bottom end of the threaded rod is rotatably connected to the inner bottom wall of the frame.

[0011] Furthermore, the driven gear and the driving gear are both bevel gears, the length and width of the threaded block are respectively equal to the length and width of the interior of the frame, and the threaded block is located above the driving gear.

[0012] Furthermore, there are four lifting rods on both sides, and the four lifting rods on the same side are fixedly connected to the four corners of the upper surface of the threaded block on the same side. There is one top plate, and the top plate is fixedly connected between the top ends of the eight lifting rods.

[0013] Furthermore, the railings are arranged in sequence and at equal intervals along the left and right directions of the top plate, and the bottom of the sleeve is fixedly connected to the upper surface of the bottom plate.

[0014] Furthermore, the top cover is fixedly connected to the upper surface of the aluminum film plate, and a connecting rod is fixedly connected to the upper surface of the top plate, and the other end of the connecting rod bends backward to pass through the front of the aluminum film plate and extends to the inner side of the aluminum film plate and is fixedly connected to the inner rear side wall of the aluminum film plate.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides a protective device for an elevator shaft, which has the following features:

[0017] Beneficial effects:

[0018] The protective device of the elevator shaft can achieve flexible adjustment of the height of the protective device through the adjustment structure, so that the device can easily adapt to elevator shaft openings of different heights. There is no need to customize special protective equipment for each shaft opening of a specific height, which greatly improves the flexibility and efficiency of construction and reduces material waste and manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a three-dimensional diagram of the bottom plate, frame, top plate, railings and sleeves in the structure of the utility model;

[0021] Figure 3 It is a left side schematic diagram of the top plate, connecting rod, aluminum film plate and top cover in the structure of the utility model.

[0022] In the figure: 1. Base plate; 2. Frame; 3. Aluminum film plate; 4. Top cover; 5. Threaded rod; 6. Driven gear; 7. Driving gear; 8. Turning rod; 9. Handwheel; 10. Threaded block; 11. Lifting rod; 12. Top plate; 13. Railing; 14. Casing; 15. Fixed plate; 16. Connecting rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 3 A protective device for an elevator shaft includes a base plate 1, two frames 2, an aluminum film plate 3 and a top cover 4. The two frames 2 are respectively fixed on the left and right sides of the upper surface of the base plate 1. The inner side of the frame 2 is provided with an adjustment structure for adapting to different elevator shaft heights.

[0025] like Figure 1 As shown, the adjustment structure includes a threaded rod 5 rotatably connected to the inner side of the frame 2, a driven gear 6 fixedly connected to the outer side of the threaded rod 5, a driving gear 7 engaged with the top of the driven gear 6, a rotating rod 8 fixedly connected to the inner side of the center of the driving gear 7, a handwheel 9 fixedly connected to the other end of the rotating rod 8, a threaded block 10 threadedly connected to the outer side of the threaded rod 5, a lifting rod 11 fixedly connected to the upper surface of the threaded block 10, a top plate 12 fixedly connected to the top of the lifting rod 11, three railings 13 fixedly connected to the bottom of the top plate 12, and a sleeve 14 slidably connected to the outer side of the railing 13.

[0026] It should be noted that the opposite side walls of the left and right frames 2 are both fixedly connected with fixing plates 15 , and bolt holes are formed on the inner sides of the two fixing plates 15 .

[0027] The top end of the threaded rod 5 is rotatably connected to the inner top wall of the frame 2 , and the bottom end of the threaded rod 5 is rotatably connected to the inner bottom wall of the frame 2 .

[0028] The driven gear 6 and the driving gear 7 are both bevel gears. The length and width of the threaded block 10 are respectively equal to the length and width of the interior of the frame 2 , and the threaded block 10 is located above the driving gear 7 .

[0029] There are four lifting rods 11 on both sides, and the four lifting rods 11 on the same side are fixedly connected to the four corners of the upper surface of the threaded block 10 on the same side. There is one top plate 12, and the top plate 12 is fixedly connected between the top ends of the eight lifting rods 11.

[0030] The railings 13 are arranged in sequence and at equal intervals along the left and right directions of the top plate 12 , and the bottom of the sleeve 14 is fixedly connected to the upper surface of the bottom plate 1 .

[0031] The top cover 4 is fixedly connected to the upper surface of the aluminum film plate 3, and the upper surface of the top plate 12 is fixedly connected to a connecting rod 16, and the other end of the connecting rod 16 bends backward to pass through the front of the aluminum film plate 3 and extends to the inner side of the aluminum film plate 3 and is fixedly connected to the inner rear side wall of the aluminum film plate 3.

[0032] In addition, the firm connection between the top plate 12 and the lifting rods 11 and the uniform distribution of the lifting rods 11 on the four corners of the threaded block 10 ensure the stability and structural rigidity of the top plate 12 during the lifting process, and effectively prevent shaking or deformation caused by external forces.

[0033] The sliding connection design between the sleeve 14 and the railing 13 not only allows the railing 13 to slide freely as the height of the top plate 12 changes, but also provides additional support for the railing 13 through the fixed connection between the bottom and the base plate 1, thereby enhancing the stability of the overall structure.

[0034] The working principle of the above embodiment is:

[0035] The left and right frames 2 are firmly mounted on the two side walls of the elevator shaft through the fixing plates 15 and the bolt holes thereon, and the aluminum film plate 3 and the top cover 4 are extended into the elevator shaft, thereby blocking objects falling from high altitudes in the elevator shaft. At the same time, the top plate 12 and the handrail 13 together form a protective barrier fence of the elevator shaft to prevent people or objects from accidentally falling into the elevator shaft.

[0036] When the height needs to be adjusted to adapt to different elevator shaft openings, the operator rotates the handwheel 9, and then the rotating rod 8 drives the driving gear 7 to rotate. Due to the bevel gear meshing design of the driving gear 7 and the driven gear 6, the rotational force is transmitted to the driven gear 6 and the fixed threaded rod 5, driving the threaded rod 5 to rotate in the frame 2. Since the threaded block 10 is threadedly connected to the threaded rod 5, the rotation of the threaded rod 5 will be converted into the up and down movement of the threaded block 10, thereby driving the lifting rod 11 and the top plate 12 to rise and fall, and finally realizing the height adjustment of the top plate 12 and the railing 13 below it to adapt to elevator shaft openings of different heights.

[0037] The electrical components mentioned in this article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device that controls a computer, etc., and the existing public power connection technology is not described in detail in this article.

[0038] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective device for an elevator shaft, comprising a bottom plate (1), two frames (2), an aluminum film plate (3) and a top cover (4), characterized in that: The two frames (2) are respectively fixed on the left side and the right side of the upper surface of the base plate (1), and the inner side of the frame (2) is provided with an adjustment structure for adapting to different elevator shaft heights; The adjustment structure comprises a threaded rod (5) rotatably connected to the inner side of a frame (2), a driven gear (6) fixedly connected to the outer side of the threaded rod (5), a driving gear (7) meshed with the top of the driven gear (6), a rotating rod (8) fixedly connected to the inner side of the center of the driving gear (7), a hand wheel (9) fixedly connected to the other end of the rotating rod (8), a threaded block (10) threadedly connected to the outer side of the threaded rod (5), a lifting rod (11) fixedly connected to the upper surface of the threaded block (10), a top plate (12) fixedly connected to the top of the lifting rod (11), three railings (13) fixedly connected to the bottom of the top plate (12), and a sleeve (14) slidably connected to the outer side of the railings (13).

2. The protective device for an elevator shaft according to claim 1, characterized in that: The opposite side walls of the left and right frames (2) are both fixedly connected with fixing plates (15), and bolt holes are provided on the inner sides of the two fixing plates (15).

3. The protective device for an elevator shaft according to claim 1, characterized in that: The top end of the threaded rod (5) is rotatably connected to the inner top wall of the frame (2), and the bottom end of the threaded rod (5) is rotatably connected to the inner bottom wall of the frame (2).

4. The protective device for an elevator shaft according to claim 1, characterized in that: The driven gear (6) and the driving gear (7) are both bevel gears. The length and width of the threaded block (10) are respectively equal to the length and width inside the frame (2), and the threaded block (10) is located above the driving gear (7).

5. The protective device for an elevator shaft according to claim 1, characterized in that: There are four lifting rods (11) on both sides, and the four lifting rods (11) on the same side are respectively fixedly connected to the four corners of the upper surface of the threaded block (10) on the same side. There is one top plate (12), and the top plate (12) is fixedly connected between the top ends of the eight lifting rods (11).

6. The protective device for an elevator shaft according to claim 1, characterized in that: The railings (13) are arranged in sequence and at equal intervals along the left and right directions of the top plate (12), and the bottom of the sleeve (14) is fixedly connected to the upper surface of the bottom plate (1).

7. The protective device for an elevator shaft according to claim 1, characterized in that: The top cover (4) is fixedly connected to the upper surface of the aluminum film plate (3), and the upper surface of the top plate (12) is fixedly connected to a connecting rod (16), and the other end of the connecting rod (16) is bent backward to pass through the front surface of the aluminum film plate (3) and extend to the inner side of the aluminum film plate (3) and is fixedly connected to the inner rear side wall of the aluminum film plate (3).

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