Explosion-proof floor drain for air-raid basement

Abstract

The utility model provides a kind of explosion-proof floor drain of air-raid shelter, belong to underground protection engineering technical field, the explosion-proof floor drain of this air-raid shelter includes;Ground, sewer, sewer is opened in ground, sealing assembly, sealing assembly includes frame, rotating rod, cover, support column, spring, limit block and placing groove, spring, limit block and placing groove are equipped with two, two placing grooves are opened in the surface of sewer, two springs are respectively fixedly connected in the inner wall of two placing grooves, two limit blocks are respectively fixedly connected in one end of two springs, and two limit blocks are respectively slidingly connected in the inner wall of two placing grooves, the design solves the problem that traditional explosion-proof floor drain relies on manual operation to close, response is not timely and sealing is unreliable, realizes the combination of automation, efficient protection and anti-foreign matter function.

Description

Technical Field

[0001] This utility model belongs to the field of underground protection engineering technology, specifically relating to an explosion-proof floor drain for an air-raid shelter. Background Technology

[0002] Explosion-proof floor drains in air-raid shelters are special drainage devices specifically designed for use in civil defense projects. They are primarily used to prevent shock waves from penetrating the basement through drainage pipes in extreme environments (such as war and explosions). In addition to the basic function of ordinary floor drains to remove accumulated water, they are equipped with a shut-off mechanism that can quickly cut off the drainage channel in the event of an abnormal external environment, forming an effective physical isolation barrier to ensure the safety and airtightness of the basement.

[0003] However, traditional explosion-proof floor drains mostly rely on manual operation to achieve their shut-off function in emergency situations, such as requiring personnel to manually tighten valves or install sealing covers. This method has significant limitations in emergency situations; if personnel fail to react in time or make operational errors, the floor drain may not be effectively sealed, thus exposing the basement to danger. Utility Model Content

[0004] The purpose of this utility model is to provide an explosion-proof floor drain for air-raid shelters, aiming to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An explosion-proof floor drain for an air-raid shelter includes:

[0007] ground;

[0008] Sewerage, wherein the sewerage is located underground;

[0009] A sealing assembly includes a frame, a rotating rod, a cover plate, a support column, a spring, a limiting block, and a placement groove. Two springs, two limiting blocks, and two placement grooves are provided. Each placement groove is located on the surface of the sewer. Two springs are fixedly connected to the inner walls of the two placement grooves. Two limiting blocks are fixedly connected to one end of each spring and slidably connected to the inner walls of the two placement grooves. The frame is fixedly connected to the inner wall of the sewer. The rotating rod is rotatably connected to the inner wall of the sewer. The cover plate is fixedly connected to the surface of the rotating rod. The support column is fixedly connected to the inner wall of the sewer.

[0010] A sealing assembly, wherein the sealing assembly is disposed on one side of the frame;

[0011] A filter assembly is disposed on one side of the frame.

[0012] In a preferred embodiment of this utility model, the sealing assembly includes a sealing strip and a sealing groove. The sealing groove is formed on the surface of the frame, the sealing strip is fixedly connected to the surface of the cover plate, and the cover plate is slidably connected to the inner wall of the sealing groove.

[0013] In a preferred embodiment of this utility model, the filter assembly includes a support frame and a funnel, wherein the support frame is slidably connected to the surface of the ground, and the funnel is fixedly connected to the surface of the support frame.

[0014] In a preferred embodiment of this utility model, the second card block is fixedly connected to the surface of the support frame, and the second card block is slidably connected to the inner wall of the sewer.

[0015] In a preferred embodiment of this utility model, the surface of the support frame is provided with a slot, the inner wall of the slot is slidably connected to a first locking block, and the surface of the first locking block is fixedly connected to a baffle.

[0016] In a preferred embodiment of this utility model, the cover plate is made of stainless steel.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This design utilizes a linkage between a limiting block and a spring to achieve automatic and rapid sealing of the explosion-proof floor drain under the impact of an explosive shock wave. When the shock wave pushes the cover plate to close, the limiting block, under the action of the spring force, locks the cover plate, forming a physical lock, completing the sealing operation without manual intervention. Compared to traditional explosion-proof floor drains that rely on manual closing, this design significantly improves emergency response speed, avoiding the problem of protection failure due to delays caused by human operation. Simultaneously, the tight fit between the stainless steel cover plate and the sealing strip enhances sealing reliability, effectively preventing toxic gases or shock waves from reversing into the basement, ensuring personnel safety.

[0019] 2. In this solution, the layered filtration structure and the snap-fit ​​design of the second clip achieve efficient interception of foreign objects and stabilize the filter components. During daily drainage, the baffle intercepts large foreign objects, while the funnel filters fine particles, preventing pipe blockage. The sliding connection between the second clip and the inner wall of the sewer further secures the support frame, preventing the filter components from falling off due to impact or explosion of foreign objects. This design not only extends the service life of the drainage system but also ensures continuous effective filtration in extreme environments, solving the drainage failure problem caused by blockage or loose components in traditional explosion-proof floor drains, thus balancing practicality and protection requirements. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a first-view perspective perspective view of the present invention;

[0022] Figure 2 This is a cross-sectional view of the present invention;

[0023] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 This is a partial exploded view of the present invention.

[0025] In the diagram: 1. Ground; 2. Baffle; 3. First locking block; 4. Locking groove; 5. Support frame; 6. Second locking block; 7. Funnel; 8. Frame; 9. Rotating rod; 10. Cover plate; 11. Sealing strip; 12. Support column; 13. Spring; 14. Limiting block; 15. Placement groove; 16. Sealing groove; 17. Sewer. Detailed Implementation

[0026] 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.

[0027] Example

[0028] Please see Figures 1-4 The present invention provides the following technical solution:

[0029] An explosion-proof floor drain for an air-raid shelter includes:

[0030] Ground 1;

[0031] Sewer 17 is located within ground level 1;

[0032] The sealing assembly includes a frame 8, a rotating rod 9, a cover plate 10, a support column 12, a spring 13, a limiting block 14, and a placement groove 15. There are two springs 13, two limiting blocks 14, and two placement grooves 15. The two placement grooves 15 are opened on the surface of the sewer 17. The two springs 13 are respectively fixedly connected to the inner walls of the two placement grooves 15. The two limiting blocks 14 are respectively fixedly connected to one end of the two springs 13 and are slidably connected to the inner walls of the two placement grooves 15. The frame 8 is fixedly connected to the inner wall of the sewer 17. The rotating rod 9 is rotatably connected to the inner wall of the sewer 17. The cover plate 10 is fixedly connected to the surface of the rotating rod 9. The support column 12 is fixedly connected to the inner wall of the sewer 17.

[0033] A sealing assembly is disposed on one side of the frame 8;

[0034] A filter assembly is located on one side of frame 8.

[0035] In a specific embodiment of this utility model, when subjected to an explosive shock wave, since the cover plate 10 is obliquely arranged in the sewer 17, the shock wave will push the cover plate 10 upward. When the cover plate 10 moves upward and contacts the limiting block 14, the limiting block 14, with its oblique surface, will be pushed into the placement groove 15 by the cover plate 10, and the spring 13 will be compressed due to the pressure. As the cover plate 10 continues to move upward and closes with the frame 8, the limiting block 14 will pop out from the placement groove 15 under the elastic force of the spring 13, locking the edge of the cover plate 10, forming a physical lock, and completing the automatic sealing.

[0036] Please refer to the details. Figures 1-4 The sealing assembly includes a sealing strip 11 and a sealing groove 16. The sealing groove 16 is formed on the surface of the frame 8. The sealing strip 11 is fixedly connected to the surface of the cover plate 10, and the cover plate 10 is slidably connected to the inner wall of the sealing groove 16.

[0037] In this embodiment: when the cover plate 10 closes to the frame 8 under the action of the shock wave, the sealing strip 11 on the surface of the cover plate 10 slides into the sealing groove 16 and is compressed and deformed to form a tight fit surface; the depth and width of the sealing groove 16 match the sealing strip 11 to ensure that there is no gap residue after the sealing strip 11 is compressed, thereby enhancing airtightness and preventing harmful gases or liquids from invading back through the drainage pipe.

[0038] Please refer to the details. Figures 1-4 The filter assembly includes a support frame 5 and a funnel 7. The support frame 5 is slidably connected to the surface of the ground 1, and the funnel 7 is fixedly connected to the surface of the support frame 5.

[0039] In this embodiment, funnel 7 is used to intercept fine particles, such as hair and sand, to achieve the purpose of filtration, reduce the risk of pipe blockage, and ensure smooth drainage.

[0040] Please refer to the details. Figures 1-4 The second locking block 6 is fixedly connected to the surface of the support frame 5, and the second locking block 6 is slidably connected to the inner wall of the sewer 17.

[0041] In this embodiment, the support frame 5 is prevented from completely detaching from the drain outlet by physical locking, thereby maintaining the stability of the filter assembly.

[0042] Please refer to the details. Figures 1-4 The surface of the support frame 5 is provided with a slot 4, the inner wall of the slot 4 is slidably connected with a first block 3, and the surface of the first block 3 is fixedly connected with a baffle 2.

[0043] In this embodiment: when a large foreign object attempts to enter the drain, the baffle 2 intercepts the foreign object through the sliding cooperation of the first locking block 3 and the locking groove 4, while ensuring that it will not be damaged or displaced due to impact, thus achieving the purpose of efficiently intercepting large foreign objects.

[0044] Please refer to the details. Figures 1-4 The cover plate 10 is made of stainless steel.

[0045] In this embodiment, stainless steel has high corrosion resistance and high strength. Even in a long-term humid environment or after being repeatedly subjected to explosive shock waves, the cover plate 10 can still maintain its original shape and sealing performance.

[0046] The working principle and usage process of this utility model are as follows: This utility model uses an explosive shock wave to push the cover plate 10 upward, causing the limiting block 14 to slide and compress the spring 13 within the placement groove 15. Subsequently, the spring 13 ejects the limiting block 14 and locks the cover plate 10, achieving automatic sealing. At the same time, the baffle 2 intercepts large foreign objects, the funnel 7 filters fine particles, and the second locking block 6 prevents the support frame 5 from detaching, ensuring stable operation of the filter assembly. The usage process is as follows: During daily drainage, the accumulated water enters the sewer 17 after being filtered by the funnel 7 and the baffle 2. When an explosive shock wave strikes, the cover plate 10 closes under the impact force and fits tightly with the sealing strip 11 of the frame 8. The limiting block 14 locks the cover plate 10 to form a physical barrier, completing a rapid seal. This design solves the problems of traditional explosion-proof floor drains that rely on manual operation to close, have untimely response, and have unreliable sealing, achieving a combination of automation, high-efficiency protection, and foreign object prevention functions.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. An explosion-proof floor drain for an air-raid shelter, characterized in that: include: Ground (1); A sewer (17) is constructed within the ground (1); A sealing assembly comprising a frame (8), a rotating rod (9), a cover plate (10), a support column (12), a spring (13), a limiting block (14), and a placement groove (15). Two springs (13), two limiting blocks (14), and two placement grooves (15) are provided. The two placement grooves (15) are opened on the surface of the sewer (17). The two springs (13) are respectively fixedly connected to the inner walls of the two placement grooves (15). The two limiting blocks (14) are respectively fixedly connected to one end of the two springs (13) and are respectively slidably connected to the inner walls of the two placement grooves (15). The frame (8) is fixedly connected to the inner wall of the sewer (17). The rotating rod (9) is rotatably connected to the inner wall of the sewer (17). The cover plate (10) is fixedly connected to the surface of the rotating rod (9). The support column (12) is fixedly connected to the inner wall of the sewer (17). A sealing assembly disposed on one side of the frame (8); A filter assembly is disposed on one side of the frame (8).

2. The explosion-proof floor drain for an air-raid shelter according to claim 1, characterized in that: The sealing assembly includes a sealing strip (11) and a sealing groove (16). The sealing groove (16) is formed on the surface of the frame (8). The sealing strip (11) is fixedly connected to the surface of the cover plate (10), and the cover plate (10) is slidably connected to the inner wall of the sealing groove (16).

3. The explosion-proof floor drain for an air-raid shelter according to claim 2, characterized in that: The filter assembly includes a support frame (5) and a funnel (7). The support frame (5) is slidably connected to the surface of the ground (1), and the funnel (7) is fixedly connected to the surface of the support frame (5).

4. The explosion-proof floor drain for an air-raid shelter according to claim 3, characterized in that: The surface of the support frame (5) is fixedly connected to the second card block (6), and the second card block (6) is slidably connected to the inner wall of the sewer (17).

5. The explosion-proof floor drain for an air-raid shelter according to claim 4, characterized in that: The surface of the support frame (5) is provided with a slot (4), and the inner wall of the slot (4) is slidably connected to a first card block (3), and the surface of the first card block (3) is fixedly connected to a baffle (2).

6. The explosion-proof floor drain for an air-raid shelter according to claim 5, characterized in that: The cover plate (10) is made of stainless steel.

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