Plugging device for bottom gap of elevator opening

Abstract

The utility model relates to a plugging device, belongs to the technical field of building construction, and particularly relates to a plugging device for a gap at the bottom of an elevator opening, which comprises a structural beam, an elevator door frame and a bolt assembly, the L-shaped galvanized steel sheet is arranged on one side of the structural beam; the bolt assembly comprises threaded holes formed in the structural beam and the L-shaped galvanized steel sheet. The bottom gap of the elevator opening can be well blocked while construction operation convenience is guaranteed, and the problems that an existing gap is not tightly blocked, dust, sundries and even water are likely to permeate into a channel, the elevator running environment is affected, aging of components is accelerated, and the service life of the elevator is prolonged are solved. And a traditional plugging method has the problems of poor sealing performance, high cost or insufficient durability.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a sealing device for the bottom gap of an elevator entrance. Background Technology

[0002] The development of elevator entrance bottom gap sealing technology is a comprehensive result of refined building construction, upgraded elevator safety standards, and advancements in material technology. It aims to solve leakage, safety hazards, and maintenance problems caused by structural gaps, ultimately ensuring the long-term stable operation of elevators and the overall safety of buildings.

[0003] A search revealed Chinese patent CN203977814U, which discloses a sealing structure for the bottom opening of an elevator door frame. The structure includes a civil engineering floor slab and an elevator door frame. An opening is formed between the civil engineering floor slab and the bottom of the elevator door frame. A stepped galvanized iron sheet is installed at the opening. One side of the galvanized iron sheet is fixedly connected to the civil engineering floor slab, and the other side overlaps with the bottom of the elevator door frame. This sealing structure is simple to construct, easy to operate, and low in cost.

[0004] Based on the above search and existing patents;

[0005] While the aforementioned patents are easy to operate and inexpensive, the gaps are not sealed tightly, making them easy channels for dust, debris, and even water to seep in, affecting the elevator's operating environment and accelerating component aging. Traditional sealing methods have problems such as poor sealing performance, high cost, or insufficient durability, and therefore have certain limitations. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model proposes a sealing device for the bottom gap of elevator entrance, which ensures convenient construction operation while effectively sealing the gap at the bottom of elevator entrance.

[0007] The technical solution to achieve the purpose of this utility model is: a sealing device for the bottom gap of an elevator entrance, including a structural beam and an elevator door frame, and also including a bolt assembly;

[0008] L-shaped galvanized steel sheet, wherein the L-shaped galvanized steel sheet is disposed on one side of the structural beam;

[0009] The bolt assembly includes threaded holes formed in the structural beam and the L-shaped galvanized steel plate.

[0010] Preferably, the elevator door frame is fixedly installed on the surface of the L-shaped galvanized steel plate, and an isolation plate is provided on one side of the elevator door frame, the isolation plate being fixedly installed on the L-shaped galvanized steel plate.

[0011] Preferably, a threaded rod is threaded between the structural beam and the L-shaped galvanized steel plate, the threaded rod is disposed on a threaded hole, a nut is threadedly connected to the threaded rod, and a washer is provided between the L-shaped galvanized steel plate and the nut.

[0012] Compared with existing technologies, the significant advantages of this invention are:

[0013] Firstly, the steel plate of this utility model is welded to the bottom of the elevator on one side to enhance the stability of the device, and the steel plate is connected to the side of the structural beam by adjustable bolts, which reflects the convenience of operation.

[0014] Secondly, this utility model sealing device is easy to manufacture and convenient for workers to operate on the construction site. It is fixed by expansion bolts to ensure that the iron sheet is tightly attached to the floor slab, preventing groundwater seepage. The galvanized iron sheet is cheaper than steel plate and has excellent rust prevention performance, making it suitable for long-term humid environments.

[0015] This solves the problem that existing gap sealing methods are not airtight, making it easy for dust, debris, and even water to seep in, affecting the elevator's operating environment and accelerating component aging. In addition, traditional sealing methods have problems such as poor sealing performance, high cost, or insufficient durability. Attached Figure Description

[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structural schematic diagram provided by this utility model;

[0018] Figure 2 This is a front view structural diagram provided by this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram provided by this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Structural beam; 2. Elevator door frame; 3. L-shaped galvanized steel sheet; 4. Isolation plate; 5. Gasket; 6. Threaded rod; 7. Nut; 8. Threaded hole. Detailed Implementation

[0022] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0023] This utility model provides an improved sealing device for the bottom gap of an elevator entrance. The technical solution of this utility model is as follows:

[0024] like Figures 1-3 As shown, a sealing device for the bottom gap of an elevator entrance includes a structural beam 1 and an elevator door frame 2. This structure can be removed and reused during the decoration stage to reduce material waste. It also includes a bolt assembly.

[0025] L-shaped galvanized steel sheet 3 is installed on one side of structural beam 1. Galvanized iron sheet is cheaper than steel sheet and has excellent rust prevention performance, making it suitable for long-term humid environments.

[0026] The bolt assembly includes threaded holes 8 in the structural beam 1 and the L-shaped galvanized steel plate 3, which improve the tightness and strength of the connection.

[0027] Furthermore, the elevator door frame 2 is fixedly installed on the surface of the L-shaped galvanized steel plate 3. An isolation plate 4 is provided on one side of the elevator door frame 2. The isolation plate 4 is fixedly installed on the L-shaped galvanized steel plate 3 to prevent water from entering the elevator door opening and affecting the normal operation of the elevator, while also not affecting the construction of the finishing layer.

[0028] Furthermore, a threaded rod 6 is threaded between the structural beam 1 and the L-shaped galvanized steel plate 3. The threaded rod 6 is set on the threaded hole 8, and a nut 7 is threadedly connected to the threaded rod 6. A washer 5 is placed between the L-shaped galvanized steel plate 3 and the nut 7. The plate is fixed by an expansion bolt assembly to ensure that the sheet metal is tightly attached to the floor slab and to prevent groundwater seepage.

[0029] The specific working method is as follows: First, one side of the L-shaped galvanized steel plate 3 is welded to the bottom of the elevator door frame 2. Second, the other side of the L-shaped galvanized steel plate 3 is connected by pre-drilling holes at specific positions on the side of the structural beam 1, and then connecting the two together with bolt assemblies. The thickness of the L-shaped galvanized steel plate 3 is 3mm, the length of the isolation plate 4 is the same as the length of the elevator, and the width of the steel plate is based on the actual situation. The bolts are adjustable, and the threaded rod 6 extends 20mm into the side of the structural beam 1. The number of bolts and the location of the bolts are determined according to the actual situation on site. In addition, the isolation device uses a 3mm thick steel plate, and the distance between the isolation device and the elevator door frame 2 is 5mm to prevent water from entering the elevator door opening and affecting the normal operation of the elevator, while not affecting the construction of the finishing layer.

[0030] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A sealing device for the bottom gap of an elevator entrance, comprising a structural beam (1) and an elevator door frame (2), characterized in that: Also includes; L-shaped galvanized steel sheet (3), the L-shaped galvanized steel sheet (3) is disposed on one side of the structural beam (1); A bolt assembly comprising threaded holes (8) formed in the structural beam (1) and the L-shaped galvanized steel sheet (3).

2. The sealing device for the bottom gap of an elevator entrance according to claim 1, characterized in that: The elevator door frame (2) is fixedly installed on the surface of the L-shaped galvanized steel plate (3). An isolation plate (4) is provided on one side of the elevator door frame (2). The isolation plate (4) is fixedly installed on the L-shaped galvanized steel plate (3).

3. A sealing device for the bottom gap of an elevator entrance according to claim 1, characterized in that: A threaded rod (6) is threaded between the structural beam (1) and the L-shaped galvanized steel plate (3). The threaded rod (6) is set on the threaded hole (8). A nut (7) is threaded onto the threaded rod (6). A washer (5) is set between the L-shaped galvanized steel plate (3) and the nut (7).

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