Totally-closed walk-in type manhole heat preservation door equipment

Abstract

The utility model relates to the technical field of manhole heat preservation doors, and discloses a fully-closed walk-in manhole heat preservation door device which comprises an outer door frame, first fixing blocks are fixedly installed on the two sides of the inner wall of the outer door frame, second fixing blocks are fixedly installed at the bottoms of the first fixing blocks, and first installation holes are formed in the first fixing blocks. According to the fully-closed walk-in type manhole heat preservation door equipment, efficient heat preservation materials and good sealing design are adopted, heat in the equipment can be effectively prevented from being dissipated to the surrounding environment through the manhole door, and even if the interior of the equipment is in a high-temperature state, the surface temperature of the manhole door can be controlled within a safe range; according to the manhole door, workers are prevented from being scalded due to accidental contact during operation or passing, the safety of the workers is guaranteed, the opening size of the manhole door is large due to the step-in design, the workers can easily enter and exit equipment, the situation that the workers need to climb or bend down to enter in a narrow space like a traditional manhole door is avoided, and the safety of the workers is improved. And the efficiency and the comfort degree of work such as overhaul and maintenance are improved.

Description

Technical Field

[0001] This utility model relates to the field of manhole insulation door technology, specifically a fully enclosed walk-in manhole insulation door device. Background Technology

[0002] Traditional manhole doors suffer from insufficient insulation and safety deficiencies. When the equipment is in a high-temperature state, the surface temperature of ordinary manhole doors may become very high, easily causing burns to workers who come into contact with them unintentionally. Moreover, in environments with hazardous gases or dust, if the manhole door is not properly sealed, these harmful substances may leak out, posing a hazard to the surrounding environment and personnel. Fully enclosed walk-in insulated manhole doors aim to solve these safety hazards. Through excellent insulation design, they reduce the surface temperature of the door, minimizing the risk of burns. At the same time, the fully enclosed structure better prevents the leakage of harmful substances, providing a safer working environment for workers.

[0003] Before the advent of fully enclosed walk-in insulated manhole doors, the insulation methods for traditional manhole doors were relatively simple, usually involving adding a layer of ordinary insulation material to the surface of the door. This method had limited insulation effect, and the insulation material was prone to damage and detachment, leading to a decrease in insulation performance. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a fully enclosed walk-in insulated manhole device to solve the problems mentioned in the background section.

[0006] Two technical solutions

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fully enclosed walk-in insulated manhole device, comprising an outer door frame, with fixing blocks 1 fixedly installed on both sides of the inner wall of the outer door frame, and fixing blocks 2 fixedly installed at the bottom of fixing blocks 1. Fixing blocks 1 and fixing blocks 2 have mounting holes 1 and 2 respectively. Fixing blocks 1 and 2 are rotatably connected by a rotating shaft. An inner door frame is provided inside the outer door frame, and a connecting plate is fixedly installed on the surface of the inner door frame. Bolts are threaded onto both sides of the connecting plate. A horizontal plate is fixedly installed inside the inner door frame.

[0008] Preferably, the bolt is threaded into the shaft.

[0009] Preferably, three horizontal plates are installed, and each of the three horizontal plates is filled with thermal insulation cotton.

[0010] Preferably, the inner door frame has dimensions of 1.5 x 0.7 meters, and the inside of the door leaf is filled with thermal insulation cotton to ensure the thermal insulation performance of the manhole.

[0011] Preferably, the outer door frame has a size of 1.8 x 1.1 meters, and the connection between the inner and outer door frames is also filled with thermal insulation cotton.

[0012] Preferably, the bottom plate of the outer door frame has a certain horizontal width, which can provide a stepping function.

[0013] Compared with the prior art, this utility model provides a fully enclosed walk-in insulated manhole device with the following advantages: This fully enclosed walk-in insulated manhole device uses high-efficiency insulation materials and a good sealing design, which can effectively prevent the heat inside the equipment from being lost to the surrounding environment through the manhole. Even if the inside of the equipment is in a high-temperature state, the surface temperature of the manhole can be controlled within a safe range, avoiding accidental burns to personnel when operating or passing by, thus ensuring personnel safety. The walk-in design allows for a larger opening size of the manhole, making it easier for personnel to enter and exit the equipment without having to climb or bend over in a narrow space like with traditional manholes, thus improving the efficiency and comfort of inspection, maintenance and other work. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the outer door frame structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the inner door frame structure of this utility model.

[0017] In the diagram: 1. Outer door frame; 2. Fixing block one; 3. Fixing block two; 4. Mounting hole one; 5. Mounting hole two; 6. Shaft; 7. Inner door frame; 8. Connecting plate; 9. Bolt; 10. Horizontal plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1-3As shown, a fully enclosed walk-in insulated manhole device includes an outer door frame 1. Fixing blocks 1 and 2 are fixedly installed on both sides of the inner wall of the outer door frame 1. Fixing blocks 2 and 3 are fixedly installed on the bottom of the fixing blocks 1 and 2. The fixing blocks 1 and 2 are provided with mounting holes 4 and 5 respectively. The fixing blocks 1 and 2 are rotatably connected by a rotating shaft 6. An inner door frame 7 is provided inside the outer door frame 1. A connecting plate 8 is fixedly installed on the surface of the inner door frame 7. Bolts 9 are threaded on both sides of the connecting plate 8. A horizontal plate 10 is fixedly installed inside the inner door frame 7.

[0020] Furthermore, bolt 9 is threadedly installed in shaft 5.

[0021] Through the above technical solution, the bolt 9 can be firmly installed in the rotating shaft 5 through the threaded connection. By rotating and removing the bolt, the inner door frame 7 can achieve the opening and closing effect.

[0022] Furthermore, three horizontal plates 10 are installed, and each of the three horizontal plates 10 is filled with thermal insulation cotton.

[0023] Through the above technical solution, multiple horizontal plates 10 are filled with thermal insulation cotton, which greatly increases the insulation area and material thickness. The three horizontal plates 10 form a multi-layer insulation structure, which makes the temperature change in different areas more gradual and reduces the material damage or equipment performance degradation that may be caused by rapid temperature changes.

[0024] Furthermore, the inner door frame 7 measures 1.5 x 0.7 meters, and the inside of the door leaf is filled with insulation cotton to ensure the insulation performance of the manhole.

[0025] Through the above technical solutions, this size allows most staff to pass through comfortably without bending over or turning sideways, reducing obstacles during entry and exit and improving work efficiency. The insulation cotton filling can significantly reduce the transfer of heat through the door. The insulation cotton has a low thermal conductivity and can form an effective heat insulation barrier inside and outside the manhole door, preventing heat conduction, convection and radiation.

[0026] Furthermore, the outer door frame measures 1.8 x 1.1 meters, and the connection between the inner door frame 7 and the outer door frame 1 is also filled with thermal insulation cotton.

[0027] Through the above technical solution, the relatively large outer door frame 1 provides ample space for the installation of the manhole insulated door. This makes it easier to position, adjust and fix during installation, reducing installation difficulty and improving installation accuracy. If there is a gap between the inner door frame 1 and the outer door frame 7 or if there is no good insulation, thermal bridges can easily form, leading to rapid heat transfer. Filling with insulation cotton can effectively fill these gaps, block the path of heat conduction through the metal door frame, and prevent heat from leaking from the high-temperature area to the low-temperature area through the door frame connection, greatly improving the overall insulation performance.

[0028] Furthermore, the base plate of the outer door frame 1 has a certain horizontal width, which can provide a stepping function.

[0029] With the above technical solution, when staff enter or exit the manhole, the base plate of the outer door frame 1 with a certain width can serve as a temporary stepping platform. When staff are operating near the manhole, the wider base plate of the outer door frame 1 provides a larger standing area, which helps to enhance the standing stability of the staff.

[0030] Working principle: First, three sets of fixing blocks 1 2 and fixing blocks 2 3 are respectively set on both sides of the inner wall of the outer door frame 1. The rotating shaft 5 passes through the mounting holes 1 4 and 2 5 in the fixing blocks 1 2 and fixing blocks 2 3, and the fixing blocks 1 2 and fixing blocks 2 3 are rotatably connected. Then, the inner door frame 7 is connected to the outer door frame 1 by bolts 9 in the connecting plate 8 on the surface of the inner door frame 7. When the bolts 9 are threaded into the rotating shaft 5, the inner door frame 7 is connected to the outer door frame 1. After the connection, the connection between the inner door frame 7 and the outer door frame 1 is filled with thermal insulation cotton. Then, the three sets of horizontal plates 10 are filled with thermal insulation cotton to ensure the thermal insulation performance of the manhole. When the door needs to be opened, the three sets of bolts 9 on one side can be rotated and removed. The door can be opened and closed by rotating the shaft 5 on the other side.

[0031] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fully enclosed walk-in insulated manhole device, comprising an outer door frame (1), characterized in that: Fixing blocks 1 (2) are fixedly installed on both sides of the inner wall of the outer door frame (1). Fixing block 2 (3) is fixedly installed at the bottom of fixing block 1 (2). Fixing block 1 (2) has a mounting hole 1 (4). Fixing block 2 (3) has a mounting hole 2 (5). Fixing block 1 (2) and fixing block 2 (3) are rotatably connected by a rotating shaft (6). An inner door frame (7) is provided inside the outer door frame (1). A connecting plate (8) is fixedly installed on the surface of the inner door frame (7). Bolts (9) are threaded on both sides of the connecting plate (8). A horizontal plate (10) is fixedly installed inside the inner door frame (7).

2. The fully enclosed walk-in manhole insulated door device according to claim 1, characterized in that: The bolt (9) is threaded into the shaft (6).

3. The fully enclosed walk-in manhole insulated door device according to claim 1, characterized in that: Three horizontal plates (10) are installed respectively, and each of the three horizontal plates (10) is filled with thermal insulation cotton.

4. The fully enclosed walk-in manhole insulation door device according to claim 1, characterized in that: The inner door frame (7) is 1.5 x 0.7 meters in size, and the inside of the door leaf is filled with thermal insulation cotton to ensure the thermal insulation performance of the manhole.

5. The fully enclosed walk-in manhole insulation door device according to claim 1, characterized in that: The outer door frame measures 1.8 x 1.1 meters, and the connection between the inner door frame (7) and the outer door frame (1) is also filled with thermal insulation cotton.

6. The fully enclosed walk-in manhole insulation door device according to claim 1, characterized in that: The bottom plate of the outer door frame (1) has a certain horizontal width, which can provide a stepping function.

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