A power distribution room door
By adopting a hollow double-layer door leaf and horizontal and vertical strip structure in the power distribution room door, combined with an elastic support structure, the impact resistance of the power distribution room door is enhanced, the problem of easy damage to louvers is solved, and the integrity and safety of the ventilation area are ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中铁吉林投资建设有限公司
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-03
Smart Images

Figure CN224452595U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power distribution room technology, and in particular to a power distribution room door. Background Technology
[0002] A power distribution room, simply put, is a room for distributing electrical energy. It serves to protect, meter, and distribute electrical energy, and contains switches, transformers, capacitors, and related protection and measuring devices. For safety reasons, power distribution rooms must be equipped with doors that are fireproof and well-ventilated. According to Article 6.3.1 of the "Design Code for 20kV and Below Substations" GB50053-2013, "Transformer rooms should preferably use natural ventilation, and the exhaust temperature in summer should not exceed 45℃," and Article 6.3.4, "Power distribution rooms should preferably use natural ventilation," and considering daily management needs, it is recommended that power distribution room doors be stainless steel louvered doors that allow for natural ventilation.
[0003] For electrical distribution rooms, rain protection and safety are paramount. Typical electrical distribution room doors are fireproof or stainless steel doors with louvers. The basic structure consists of a door frame, door leaf, and a locking mechanism. Louvers provide natural ventilation and also offer rain protection and prevent small animals from entering. However, current technology often uses horizontal slats welded to the inside of the ventilation opening. These slats are easily broken or deformed by impact, creating gaps in the protection and allowing rainwater or small animals to enter, posing a significant safety risk.
[0004] Therefore, based on the above-mentioned technical problems, those skilled in the art urgently need to develop a power distribution room door. Utility Model Content
[0005] The purpose of this utility model is to provide a power distribution room door that can improve the structural stability of the ventilation window, resist impact, and prevent deformation.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] The present invention provides a power distribution room door, comprising a door frame and two door panels that open and close inside the door frame, wherein the door panels are hollow double-layer door panel structures.
[0008] The lower end of the door leaf is provided with a ventilation area, which includes a ventilation opening at the lower end of the door leaf. An assembly frame is provided inside the ventilation opening, and multiple sets of horizontal and vertical strip structures are provided inside the assembly frame. The horizontal and vertical strip structures are inclined downward from the inside to the outside of the door leaf. The multiple sets of horizontal and vertical strip structures are distributed at equal intervals from top to bottom inside the assembly frame to form a ventilation louver structure.
[0009] An elastic support structure is provided between each pair of adjacent horizontal and vertical strip structures to provide elastic support for the horizontal and vertical strip structures.
[0010] Furthermore, the assembly frame is welded to the inside of the ventilation opening.
[0011] Furthermore, the horizontal bar structure includes a horizontal support rod, on which a horizontal sleeve is fitted. The horizontal sleeve is fixedly connected to the horizontal support rod, and both ends of the horizontal sleeve abut against the inner surface of the assembly frame. Both ends of the horizontal support rod pass through the two side frames of the assembly frame.
[0012] The outer side of the horizontal sleeve is connected to a horizontal blade, both ends of which abut against the inner surface of the assembly frame. The horizontal blade is inclined downwards from the inner side of the door leaf to the outer side.
[0013] Furthermore, the horizontal support rods of the multiple sets of horizontal and vertical strip plate structures are arranged at equal intervals and parallel to each other, and the horizontal blades of the multiple sets of horizontal and vertical strip plate structures are arranged at equal intervals and parallel to each other.
[0014] Furthermore, the elastic support structure includes an arc-shaped metal elastic sheet, one end of which is fixedly connected to the horizontal sleeve, and the other end is connected to the lower end of the inclined surface of the horizontal blade by bolts.
[0015] In the horizontal blades of the multiple sets of horizontal strip plate structures, at least three sets of arc-shaped metal elastic sheets are provided between each pair of adjacent horizontal blades, and the at least three sets of arc-shaped metal elastic sheets are evenly distributed in the horizontal direction between the pairs of adjacent horizontal blades.
[0016] Furthermore, the upper and lower side borders of the assembly frame are both set as inclined surfaces parallel to the horizontal blade.
[0017] In the above technical solution, the power distribution room door provided by this utility model has the following beneficial effects:
[0018] The natural ventilation area of this power distribution room door still uses the conventional louver ventilation structure, but the traditional single horizontal blade has been replaced with a horizontal support rod supporting the horizontal sleeve and horizontal blades with a horizontal bar structure. While retaining the lightweight characteristics of the original horizontal blade structure, the structure of the horizontal support rod, horizontal sleeve and horizontal blades is combined to improve the overall impact resistance and prevent easy damage. In addition, the horizontal blades of the horizontal bar structure are elastically supported by an elastic support structure. Even if the horizontal blades are impacted, they will rebound through the elastic support structure to ensure the integrity of the overall structure of the ventilation area, avoid protective gaps, and prevent rainwater or small animals from entering, thereby reducing the safety risks of using the power distribution room door. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0020] Figure 1 A schematic diagram of the structure of a power distribution room door provided for an embodiment of this utility model;
[0021] Figure 2 A front view of a power distribution room door provided for an embodiment of this utility model;
[0022] Figure 3 A front view of the ventilation area of a power distribution room door provided in an embodiment of this utility model;
[0023] Figure 4 A schematic diagram showing the positional distribution of the arc-shaped metal elastic sheet in a power distribution room door, provided for an embodiment of this utility model;
[0024] Figure 5 A power distribution room door provided for an embodiment of this utility model Figure 1 A magnified view of a portion of the image.
[0025] Explanation of reference numerals in the attached figures:
[0026] 1. Door frame; 2. Door leaf; 3. Ventilation opening; 4. Assembly frame; 5. Horizontal support rod; 6. Horizontal sleeve; 7. Horizontal blade; 8. Curved metal elastic sheet. Detailed Implementation
[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0028] Please see Figure 1-5A type of power distribution room door includes a door frame 1 and two door leaves 2 that open and close inside the door frame 1. The door leaves have structures such as a locking rod for easy locking. The door leaves 2 are hollow double-layer door panels. This is the main structure of a conventional power distribution room door. The door frame 1 and door leaves 2 are metal doors and have fireproof properties.
[0029] A ventilation area is provided at the lower end of the door leaf 2 to allow the power distribution room door to meet the conditions for natural ventilation. The ventilation area includes a ventilation opening 3 at the lower end of the door leaf 2. An assembly frame 4 is provided inside the ventilation opening 3. Multiple sets of horizontal and vertical strip structures are provided inside the assembly frame 4. The horizontal and vertical strip structures are inclined downward from the inside to the outside of the door leaf 2. The multiple sets of horizontal and vertical strip structures are distributed at equal intervals from top to bottom inside the assembly frame 4 to form a ventilation louver structure, so that the louver structure has the effect of preventing rainwater from entering, and the ventilation gaps prevent small animals from entering.
[0030] An elastic support structure is installed between each pair of adjacent horizontal and vertical slat structures to provide elastic support for the horizontal and vertical slat structures. This elastic support structure not only connects multiple groups of horizontal and vertical slat structures together, improving overall structural stability and impact resistance, but also provides elastic support to allow the horizontal and vertical slat structures to rebound elastically after impact, ensuring the overall structural stability and preventing gaps in the ventilation area after impact. It also ensures rain protection and prevents small animals from entering. Furthermore, it should be noted that although this structure improves impact resistance compared to traditional louver structures, it still has its limits. This structure provides a power distribution room door that improves the structural stability and impact resistance of ventilation windows, preventing deformation.
[0031] Furthermore, the assembly frame 4 is welded to the inner side of the ventilation opening 3 to achieve a connection and fixation between the assembly frame 4 and the ventilation opening 3, or the assembly frame 4 and the ventilation opening 3 are bolted together to facilitate the overall disassembly of the ventilation area and make it easy to maintain.
[0032] Furthermore, the horizontal bar structure includes a horizontal support rod 5, on which a horizontal sleeve 6 is fitted. The horizontal sleeve 6 is fixedly connected to the horizontal support rod 5. Both ends of the horizontal sleeve 6 abut against the inner surface of the assembly frame 4. Both ends of the horizontal support rod 5 pass through the two side frames of the assembly frame 4, so that the horizontal support rod 5 is supported by the assembly frame 4 and kept in a horizontal state. The assembly frame 4 is provided with holes that allow the horizontal support rod 5 to pass through, so that the horizontal support rod 5 can rotate axially relative to the assembly frame 4. The diameter of the horizontal sleeve 6 is larger than the diameter of the holes through which the horizontal support rod 5 passes, so that the horizontal support rod 5 does not move axially on the assembly frame 4, thereby maintaining the installation stability of the horizontal support rod 5.
[0033] A horizontal blade 7 is connected to the outer side of the horizontal sleeve 6. Both ends of the horizontal blade 7 abut against the inner surface of the assembly frame 4. The horizontal blade 7 is inclined downwards from the inside to the outside of the door leaf 2. This inclined state is maintained by the installation of the elastic support structure. The axial rotation structure of the horizontal support rod 5 only allows the horizontal support rod 5 and the horizontal sleeve 6 to rotate adaptively with the horizontal blade 7 after the horizontal blade 7 is impacted, swings, and compresses the elastic support structure. However, the multiple sets of horizontal and vertical strip structures remain inclined under the connection of the elastic support structure. The horizontal blade 7 and the horizontal sleeve 6 can be fixed by welding or by conventional detachable connection such as bolts to facilitate the replacement and maintenance of the horizontal blade 7.
[0034] Furthermore, the horizontal support rods 5 of the multiple sets of horizontal and vertical strip plate structures are equally spaced and parallel to each other, and the horizontal blades 7 of the multiple sets of horizontal and vertical strip plate structures are equally spaced and parallel to each other, so as to maintain a stable ventilation distance for ventilation.
[0035] Furthermore, the elastic support structure includes an arc-shaped metal elastic sheet 8. One end of the arc-shaped metal elastic sheet 8 is fixedly connected to the horizontal sleeve 6, and the other end is connected to the lower end of the inclined surface of the horizontal blade 7 by bolts. This is equivalent to both ends being fixedly connected. When one of the horizontal blades 7 is impacted, its lower end swings downward, and the arc-shaped metal elastic sheet 8 is bent. At the same time, the length of the connection between the horizontal sleeve 6 and the horizontal blade 7 changes to accommodate the swing of the horizontal blade 7. Then, the elasticity of the arc-shaped metal elastic sheet 8 is used to push the horizontal blade 7 back to its initial position for normal use.
[0036] In the multi-group horizontal blade structure, at least three sets of arc-shaped metal elastic plates 8 are provided between each pair of adjacent horizontal blades 7. These at least three sets of arc-shaped metal elastic plates 8 are evenly distributed horizontally between adjacent pairs of horizontal blades 7. To maintain the stability of the elastic support provided by the arc-shaped metal elastic plates 8 to the horizontal blades 7, the at least three sets of arc-shaped metal elastic plates 8 should be distributed at the middle and both ends of the horizontal blades 7 to balance the support. The number of these plates should not be excessive to avoid affecting normal ventilation. The natural state of the arc-shaped metal elastic plates 8 is extremely curved, such as... Figure 1 and Figure 5 As shown.
[0037] Furthermore, the upper and lower side frames of the assembly frame 4 are both set as inclined surfaces parallel to the horizontal blades 7, so that the inclined surfaces of the upper and lower side frames of the assembly frame 4 are adapted to the parallel state of the horizontal blades 7 at the bottom and top of the multiple horizontal blades 7, so as to make the entire louver structure complete.
[0038] In summary, the natural ventilation area of this power distribution room door still uses the conventional louver ventilation structure. However, the traditional single horizontal blade has been replaced with a horizontal support rod supporting the horizontal sleeve and horizontal blades, which is composed of horizontal strips. While retaining the lightweight characteristics of the original horizontal blade structure, the structure of the horizontal support rod, horizontal sleeve, and horizontal blades is combined to improve the overall impact resistance, preventing easy damage. In addition, the horizontal blades of the horizontal strip structure are elastically supported by an elastic support structure. Even if the horizontal blades are impacted, they will rebound through the elastic support structure, ensuring the integrity of the overall structure of the ventilation area, avoiding protective gaps, and preventing rainwater or small animals from entering, thus reducing the safety risks of using the power distribution room door.
[0039] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A power distribution room door comprising a door frame (1) and two door leaves (2) arranged to open and close inside the door frame (1), characterized in that, The door leaf (2) is a hollow double-layer door panel structure; The lower end of the door leaf (2) is provided with a ventilation area, which includes a ventilation opening (3) opened at the lower end of the door leaf (2). An assembly frame (4) is provided inside the ventilation opening (3). Multiple sets of horizontal and vertical strip structures are provided inside the assembly frame (4). The horizontal and vertical strip structures are inclined downward from the inside of the door leaf (2) to the outside. The multiple sets of horizontal and vertical strip structures are distributed at equal intervals from top to bottom inside the assembly frame (4) to form a ventilation louver structure. An elastic support structure is provided between each pair of adjacent horizontal and vertical strip structures to provide elastic support for the horizontal and vertical strip structures.
2. The power distribution room door of claim 1, wherein, The assembly frame (4) is welded to the inside of the ventilation opening (3).
3. The power distribution room door of claim 1, wherein, The horizontal bar structure includes a horizontal support rod (5), a horizontal sleeve (6) is sleeved on the horizontal support rod (5), the horizontal sleeve (6) is fixedly connected to the horizontal support rod (5), both ends of the horizontal sleeve (6) abut against the inner surface of the assembly frame (4), and both ends of the horizontal support rod (5) pass through the two side frames of the assembly frame (4). The horizontal sleeve (6) is connected to a horizontal blade (7) on its outer side. Both ends of the horizontal blade (7) abut against the inner surface of the assembly frame (4). The horizontal blade (7) is inclined downward from the inner side of the door leaf (2) to the outer side.
4. The power distribution room door of claim 3, wherein, The horizontal support rods (5) of the multiple sets of the horizontal and vertical strip plate structure are equally spaced and parallel to each other, and the horizontal blades (7) of the multiple sets of the horizontal and vertical strip plate structure are equally spaced and parallel to each other.
5. A switchgear room door according to claim 4, characterized in that The elastic support structure includes an arc-shaped metal elastic sheet (8), one end of which is fixedly connected to the horizontal sleeve (6), and the other end is connected to the lower end of the inclined surface of the horizontal blade (7) by bolts. In the horizontal blades (7) of the multiple sets of horizontal strip structures, at least three sets of arc-shaped metal elastic sheets (8) are provided between each pair of adjacent horizontal blades (7), and the at least three sets of arc-shaped metal elastic sheets (8) are evenly distributed in the horizontal direction between the pairs of adjacent horizontal blades (7).
6. A power distribution room door according to claim 5, wherein, The upper and lower side frames of the assembly frame (4) are both set as inclined surfaces parallel to the horizontal blade (7).