Foreign matter invasion prevention grid for subway ventilation opening

Abstract

The utility model discloses a grid for preventing foreign matters from invading into a subway ventilation opening, and relates to the field of subway facilities, in particular to the grid for preventing the foreign matters from invading into the subway ventilation opening, which comprises a grid body arranged on the subway ventilation opening, the body consists of an upper frame and a lower frame, and a protection assembly for preventing the foreign matters from invading into the grid body is arranged on the body. The protective assembly comprises a first partition plate installed in the upper frame and a plurality of second partition plates installed in the lower frame, and the first partition plates and the second partition plates are alternately arranged on the projection face in the air inlet direction in a staggered mode. Foreign matters are easy to accumulate on the grating, so that the problem that the foreign matters enter a subway after long-term use still occurs.

Description

Technical Field

[0001] This utility model relates to the field of subway facilities, specifically a subway ventilation opening anti-foreign object intrusion grille. Background Technology

[0002] The subway ventilation system is a crucial facility for ensuring air circulation, removing exhaust fumes, and regulating temperature within subway stations. Ventilation vents are typically located at subway entrances / exits, tunnels, or equipment rooms to facilitate air exchange between the inside and outside. However, due to the complex operating environment of subways, ventilation vents are susceptible to the intrusion of foreign objects (such as leaves, garbage, dust, and small animals). Accumulation of these objects can clog vents, hindering airflow, affecting air quality within the subway station, and even increasing the operating load on ventilation equipment. Larger objects (such as plastic bags and branches) may be sucked into ventilation ducts, entangled in fan blades, or clogged filters, leading to equipment malfunctions and increased maintenance costs. Small animals or debris entering the ventilation system may cause short circuits or fire risks, impacting subway operational safety.

[0003] Currently, subway ventilation openings are typically protected using structures such as metal grilles, louvers, or insect screens. However, the grilles used in existing subway ventilation openings are only moderately effective at blocking foreign objects, which tend to accumulate on the grilles. As a result, after long-term use, the problem of foreign objects entering the subway still occurs.

[0004] Therefore, a new type of anti-foreign object intrusion grille for subway ventilation openings needs to be designed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a grille for preventing foreign objects from entering a subway ventilation opening, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a grille for preventing foreign objects from entering a subway ventilation opening, comprising a grille body installed on the subway ventilation opening, the body being composed of an upper frame and a lower frame, the body being provided with a protective component for preventing foreign objects from entering, the protective component comprising a partition 1 installed in the upper frame and multiple partitions 2 installed in the lower frame, the multiple partitions 1 and multiple partitions 2 being alternately staggered on the projection surface in the air intake direction.

[0007] Preferably, the middle portions of the first and second partitions are recessed downwards and form an upward-opening V-shape.

[0008] Preferably, both ends of the first partition and the second partition are respectively provided with outwardly extending rolled edges, and the rolled edges on the first partition and the second partition coincide on the projection surface in the air inlet direction.

[0009] Preferably, the bottom of the main body is provided with a bottom shell, and a placement rack is provided on the bottom shell, with the upper frame and the lower frame inserted into the inside of the placement rack.

[0010] Preferably, the inner side of the placement rack is provided with a storage compartment for storing foreign objects, and the ends of the first partition and the second partition extend into the interior of the storage compartment.

[0011] Preferably, the interior of the first partition and the second partition are provided with inclined plates.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this utility model, by setting an upper frame and a lower frame inside the ventilation opening, multiple partition 1 are inserted into the upper frame and multiple partition 2 are inserted into the lower frame. The partition 1 and partition 2 are alternately staggered, and the rolled edges are located on both sides of the partition 1 and partition 2 respectively. This can improve the overlap of the partition 1 and partition 2 and further prevent foreign objects from entering the subway through the subway ventilation opening. Attached Figure Description

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

[0015] Figure 2 This is the left view of the present invention.

[0016] Figure 3 This utility model Figure 2 A three-dimensional cross-sectional view of point AA in the middle.

[0017] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0018] Figure 5 This is a schematic diagram of the overall structure of this utility model after the insect-proof netting has been installed.

[0019] In the diagram: 1. Upper frame; 2. Lower frame; 3. Partition 1; 4. Partition 2; 5. Rolled edge; 6. Bottom shell; 7. Placement rack; 8. Storage compartment; 9. Sloping plate. Detailed Implementation

[0020] 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.

[0021] All electronic components in this application are controlled by an external controller.

[0022] Example 1

[0023] Please refer to Figure 1-4 As shown, this utility model provides a foreign object intrusion prevention grille for subway ventilation openings, including a grille body installed on the subway ventilation opening. The body is composed of an upper frame 1 and a lower frame 2. The body is provided with a protective component for preventing foreign object intrusion. The protective component includes a partition 3 installed in the upper frame 1 and multiple partitions 4 installed in the lower frame 2. The multiple partitions 3 and multiple partitions 4 are alternately staggered on the projection surface in the air intake direction. The middle part of the partitions 3 and 4 is recessed downward to form an upward-opening V-shape. The two ends of the partitions 3 and 4 are respectively provided with outwardly extending rolled edges 5, and the rolled edges 5 on the partitions 3 and 4 coincide on the projection surface in the air intake direction.

[0024] The main body is a commonly used grille installed on subway ventilation openings. The main body consists of an upper frame 1 and a lower frame 2 that are interlocked together. There are multiple partitions 3 and 4. Partition 3 is inserted into the upper frame 1, and partition 4 is inserted into the lower frame 2. Partitions 3 and 4 are alternately staggered. This arrangement can block the air intake direction of the subway ventilation opening with multiple partitions 3 and 4. When foreign objects intrude, they will always be blocked by partition 3 or partition 4. At the same time, there are gaps between partitions 3 and 4, and airflow can enter the air intake through these gaps. The middle of partitions 3 and 4 is recessed downward to form a storage space, which can not only block the intrusion of foreign objects, but also temporarily store these foreign objects. The roll plates are located on both sides of partitions 3 and 4, which can increase the overlapping area of ​​the projection surface of the air intake direction and further prevent the intrusion of foreign objects.

[0025] Specifically, the bottom of the main body is provided with a bottom shell 6, and a placement frame 7 is provided on the bottom shell 6. The upper frame 1 and the lower frame 2 are inserted into the inner side of the placement frame 7. The bottom shell 6 is located at the bottom of the main body, and the placement frame 7 is located at the top of the bottom shell 6. The placement frame 7 is rectangular. The upper frame 1 and the lower frame 2 are inserted into the inner side of the placement frame 7, which can facilitate the fixing of the upper frame 1 and the lower frame 2.

[0026] The inner side of the placement rack 7 is provided with a storage compartment 8 for storing foreign objects. The ends of the first partition 3 and the second partition 4 extend into the interior of the storage compartment 8. Through holes are opened on the first partition 3 and the second partition 4 respectively. The storage compartment 8 is located inside the placement rack 7. Foreign objects on the first partition 3 and the second partition 4 will enter the storage compartment 8 through the through holes for easy collection.

[0027] Based on the above embodiments, specifically, the partition 3 and partition 4 are provided with inclined plates 9 inside. The inclined plates 9 are integrally formed on the inner side of the partition 3 and partition 4, which can guide the intruding foreign objects to the storage compartments 8 on both sides.

[0028] Working principle: In the ventilation state, the airflow will enter the interior of the subway ventilation opening. Due to the obstruction of partition 3 and partition 4, the intruding foreign objects will be blocked by partition 3, partition 4 and the rolled edge 5 on them, and fall into the downward recessed storage space of partition 3 and partition 4. Under the guidance of the inclined plate 9, they will enter the outer storage compartment 8. The airflow will pass through the gap between partition 3 and partition 4 and enter the interior of the subway.

[0029] Please refer to Figure 5 As shown, more specifically, the upper frame is equipped with an insect-proof net, which can further prevent the entry of foreign objects.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A subway vent anti-intrusion grille, characterized by, The application relates to a grid body installed on a subway ventilation port, which is composed of an upper frame (1) and a lower frame (2), and is provided with a protection assembly for preventing foreign matters from entering. The protection assembly comprises a plurality of partition plates I (3) installed in the upper frame (1) and a plurality of partition plates II (4) installed in the lower frame (2), and the plurality of partition plates I (3) and the plurality of partition plates II (4) are alternately and staggeredly arranged on the projection plane in the air inlet direction.

2. The anti-intrusion grille for a subway ventilation opening according to claim 1, characterized in that: The middle portions of the partition plates I (3) and the partition plates II (4) are concave downward and form V-shaped openings upward.

3. The anti-intrusion grille for a subway ventilation opening according to claim 2, characterized in that: The two ends of the partition plates I (3) and the partition plates II (4) are respectively provided with outwardly extending flanges (5), and the flanges (5) on the partition plates I (3) and the partition plates II (4) are coincident on the projection plane in the air inlet direction.

4. The anti-intrusion grille for a subway ventilation opening according to claim 3, characterized in that: The bottom of the body is provided with a bottom shell (6), the bottom shell (6) is provided with a placing rack (7), and the upper frame (1) and the lower frame (2) are inserted into the inner side of the placing rack (7).

5. The anti-intrusion grille for a subway ventilation opening according to claim 4, characterized in that: The inner side of the placing rack (7) is provided with a storage bin (8) for storing foreign matters, and the end portions of the partition plates I (3) and the partition plates II (4) extend into the interior of the storage bin (8).

6. The anti-intrusion grille for a subway ventilation opening according to claim 5, characterized in that: The interior of the partition plates I (3) and the partition plates II (4) is provided with an inclined plate (9).

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