An explosion-proof floor drain structure for civil air defense engineering

Abstract

This utility model relates to the field of civil defense engineering technology, specifically an explosion-proof floor drain structure for civil defense projects, comprising an explosion-proof shell. The explosion-proof shell includes a top cover, a vortex drainage and filtration mechanism, and a bottom annular drainage cylinder, all coaxially nested together. The explosion-proof shell is composed of a stainless steel substrate and a rubber buffer layer. This explosion-proof floor drain adopts a modular design, with the top cover, vortex filtration mechanism, and bottom drainage cylinder coaxially nested, integrating drainage, filtration, and explosion-proof functions. The top cover features multiple drainage channels and an annular handle, ensuring even drainage and convenient assembly / disassembly. The vortex guide plate guides the water flow, improving efficiency and blocking large particles. Multi-stage filter holes intercept impurities of different sizes, preventing clogging. The explosion-proof shell, made of a stainless steel and rubber composite material, enhances impact resistance and corrosion resistance, making it suitable for civil defense projects.

Description

Technical Field

[0001] This utility model relates to the field of civil defense engineering technology, and in particular to an explosion-proof floor drain structure for civil defense engineering. Background Technology

[0002] In modern building engineering, especially civil defense engineering, floor drains, as an important component of the drainage system, not only serve to remove surface water but also need to possess safety features such as preventing the backflow of harmful gases or substances and resisting external impacts. Traditional floor drains often employ simple drainage structures, which, while achieving basic drainage functions, often fail to meet practical requirements in complex environments such as wartime protection, chemical pollution, or explosive impacts. Furthermore, traditional floor drains commonly suffer from poor filtration, easy clogging, low drainage efficiency, and inconvenient installation and disassembly, resulting in high maintenance costs and short service life, making them unsuitable for the high standards and stringent requirements of modern buildings, especially civil defense engineering applications.

[0003] Chinese patent discloses a floor drain structure (publication number: CN 207512880 U) comprising a main body, an outlet pipe connected inside the main body, a drain plate fixedly mounted above the main body, a cylinder connected below the drain plate, a partition fixedly connected inside the cylinder, a replacement port above the cylinder, a movable plate connected to the outlet pipe, a water passage hole on the movable plate, a baffle connected below the partition, water passages on the baffle and partition, an elastic element on the baffle, and a connecting rod ball-hinged below the baffle. However, this floor drain structure is simple, has insufficient filtration capacity, poor impact resistance, is prone to clogging, and is inconvenient to disassemble and maintain. It is difficult to meet the comprehensive requirements of safety, stability, and durability of drainage systems in special environments such as civil defense projects. Therefore, there is a need for an explosion-proof floor drain structure for civil defense projects. Utility Model Content

[0004] The purpose of this invention is to address the common problems in existing technologies, such as the simple structure of traditional floor drains, insufficient filtration capacity, poor impact resistance, easy clogging, and inconvenient disassembly and maintenance, which make it difficult to meet the comprehensive requirements for the safety, stability, and durability of drainage systems in special environments such as civil defense projects. Therefore, this invention proposes an explosion-proof floor drain structure for civil defense projects.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: This utility model provides an explosion-proof floor drain structure for civil defense projects, comprising an explosion-proof shell. The explosion-proof shell is cylindrical and vertically arranged, including a top cover, a vortex drainage filter mechanism, and a bottom annular drainage cylinder. The top cover, vortex drainage filter mechanism, and bottom annular drainage cylinder are coaxially nested. The explosion-proof shell is composed of a stainless steel substrate and a rubber buffer layer. The vortex drainage filter mechanism is composed of an upper annular cover and a lower filter cylinder. This structural design achieves overall modularity and multi-functional integration of the explosion-proof floor drain. The coaxial nesting allows each component to work collaboratively, improving drainage efficiency and explosion-proof performance. The stainless steel and rubber composite material enhances the structural strength and impact resistance of the floor drain, making it suitable for civil defense projects and other locations with high requirements for explosion-proof performance.

[0006] Preferably, the top cover is provided with drainage channels, the number of which is 6 to 8 and arranged in an equally spaced array. A ring-shaped handle is located at the center of the top of the top cover, and locking blocks are provided on both sides of the top cover. Multiple evenly distributed drainage channels help achieve rapid and uniform drainage, avoiding localized water accumulation; the ring-shaped handle facilitates installation and disassembly, improving maintenance convenience; the locking block design allows for a detachable connection between the top cover and the explosion-proof housing, enhancing structural flexibility and maintainability.

[0007] Preferably, the upper annular cover has two vortex guide plates at its top edge, which are arranged correspondingly. These vortex guide plates, combined with the upper annular cover, form a first fluid space and a second fluid space. The top surfaces of both the first and second fluid spaces share a first set of filter holes. The top and bottom of the lower filter cylinder have second sets of filter holes, and the outer edge of the lower filter cylinder has a third set of filter holes. The diameter of the third set of filter holes is smaller than that of the first and second sets. The vortex guide plates guide the water flow to form vortices, improving drainage efficiency and effectively preventing large particles from entering the drainage system. The multi-stage filter hole design enables graded interception of debris of different sizes, enhancing the filtration effect, preventing drainage channel blockage, and improving the long-term stability of the system.

[0008] Preferably, the upper annular cover and the lower filter cylinder are made of stainless steel, and the edges at the connection between the upper annular cover and the lower filter cylinder have a smooth, curved transition. The stainless steel material enhances the corrosion resistance and structural strength of the components, making them suitable for long-term use in complex environments; the smooth, curved design reduces water flow resistance, prevents dirt accumulation, and helps improve drainage smoothness and self-cleaning ability.

[0009] Preferably, the explosion-proof housing has two corresponding slots on its top edge inner wall, and each slot is associated with a corresponding block. An annular guide block is provided between adjacent slots. This cooperative design of the slots and blocks ensures a stable connection between the top cover and the explosion-proof housing, enhancing the overall structural stability. The annular guide block helps guide water flow into the filtration area, improving drainage efficiency and preventing water dispersion or overflow.

[0010] Preferably, the annular handle and the top cover are integrally formed and the surface is coated with an anti-slip coating. The integral design enhances the structural strength and durability of the handle, reducing the risk of parts loosening or falling off; the anti-slip coating improves operational safety, especially in humid environments, making it easier for users to grip firmly and improving ease of use and safety.

[0011] The advantages of this utility model are:

[0012] This application's explosion-proof floor drain structure utilizes a modular design to coaxially nest the top cover, vortex drainage and filtration mechanism, and bottom annular drainage cylinder, achieving a high degree of integration of drainage, filtration, and explosion-proof functions. The multiple drainage channels and annular handle design on the top cover not only improve drainage uniformity and ease of operation but also enhance the flexibility of structural assembly and disassembly. The vortex guide plate effectively guides water flow to form a vortex effect, improving drainage efficiency while preventing large particles from entering the system. The multi-stage filter hole layout enables graded interception of debris of different sizes, significantly enhancing filtration performance and preventing drainage channels from failing due to blockage. The explosion-proof shell is made of a stainless steel and rubber composite material, which not only improves the overall structure's impact and corrosion resistance but also enhances its adaptability and safety in special environments such as civil defense projects. The slot and block design makes the connection between the top cover and the shell more stable, and the annular guide block further optimizes water flow guidance, improving overall drainage efficiency. The handle is integrally molded and has an anti-slip coating, enhancing operational safety and user comfort. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0015] Figure 2 This is a schematic diagram of the structure of this utility model.

[0016] In the diagram: 1. Drainage trough; 2. Locking block; 3. Annular handle; 4. First fluid space; 5. First filter hole group; 6. Vortex guide plate; 7. Second fluid space; 8. Second filter hole group; 9. Third filter hole group; 10. Annular guide block; 11. Locking groove; 12. Explosion-proof shell; 13. Bottom annular drain cylinder; 14. Upper annular cover; 15. Lower filter cylinder; 16. Top cover. Detailed Implementation

[0017] 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 scope of protection of the present utility model. Example

[0018] Please see Figure 1-2 As shown, an explosion-proof floor drain structure for civil defense projects includes an explosion-proof housing 12. The explosion-proof housing 12 is cylindrical and vertically arranged. It includes a top cover 16, a vortex drainage filter mechanism, and a bottom annular drainage cylinder 13. The top cover 16, the vortex drainage filter mechanism, and the bottom annular drainage cylinder 13 are coaxially nested. The explosion-proof housing 12 is composed of a stainless steel substrate and a rubber buffer layer. The vortex drainage filter mechanism is composed of an upper annular cover 14 and a lower filter cylinder 15. This structural design achieves overall modularity and multi-functional integration of the explosion-proof floor drain. The coaxial nesting allows the components to work collaboratively, improving drainage efficiency and explosion-proof performance. The stainless steel and rubber composite material enhances the structural strength and impact resistance of the floor drain, making it suitable for civil defense projects and other locations with high requirements for explosion-proof performance.

[0019] In this embodiment, the top cover 16 is provided with drainage grooves 1, and the number of drainage grooves 1 is 6 to 8, arranged in an equally spaced array. The top center of the top cover 16 is provided with a ring handle 3, and both sides of the top cover 16 are provided with locking blocks 2. The multiple evenly distributed drainage grooves 1 help to achieve a fast and uniform drainage effect and avoid local water accumulation; the ring handle 3 facilitates installation and disassembly operations, improving maintenance convenience; the locking block 2 design allows for a detachable connection between the top cover 16 and the explosion-proof shell 12, enhancing structural flexibility and maintainability.

[0020] In this embodiment, the upper annular cover 14 has two vortex guide plates 6 on its top edge. These vortex guide plates 6, arranged in a corresponding manner, combine with the upper annular cover 14 to form a first fluid space 4 and a second fluid space 7. The top surfaces of the first fluid space 4 and the second fluid space 7 are jointly provided with a first filter hole group 5. The top and bottom of the lower filter cylinder 15 are provided with a second filter hole group 8, and the outer edge of the lower filter cylinder 15 is provided with a third filter hole group 9. The diameter of the third filter hole group 9 is smaller than that of the first and second filter hole groups. The vortex guide plates 6 guide the water flow to form vortices, improving drainage efficiency and effectively preventing large particles from entering the drainage system. The multi-stage filter hole group design enables graded interception of debris of different sizes, enhancing the filtration effect, preventing drainage channel blockage, and improving the long-term stability of the system.

[0021] In this embodiment, the upper annular cover 14 and the lower filter cylinder 15 are made of stainless steel, and the edge at the connection between the upper annular cover 14 and the lower filter cylinder 15 has a smooth transition arc shape. The stainless steel material improves the corrosion resistance and structural strength of the components, making them suitable for long-term use in complex environments; the smooth transition arc design reduces water flow resistance, prevents dirt accumulation, and helps improve drainage smoothness and self-cleaning ability.

[0022] In this embodiment, the explosion-proof housing 12 has two slots 11 on its top edge inner wall, which are correspondingly arranged. Each slot 11 is associated with a block 2, and an annular guide block 10 is provided between adjacent slots 11. The cooperative design of the slots 11 and the blocks 2 achieves a stable connection between the top cover 16 and the explosion-proof housing 12, enhancing the stability of the overall structure. The annular guide block 10 helps guide water flow into the filtration area, improving drainage efficiency and preventing water dispersion or overflow.

[0023] In this embodiment, the annular handle 3 and the top cover 16 are integrally formed and have an anti-slip coating on their surfaces. The integral design enhances the structural strength and durability of the handle, reducing the risk of parts loosening or falling off; the anti-slip coating improves operational safety, especially in humid environments, making it easier for users to grip firmly and improving ease of use and safety.

[0024] The implementation principle of this embodiment is as follows:

[0025] When water accumulates on the ground, it first flows into the explosion-proof floor drain through multiple drainage channels 1 on the top cover 16. The drainage channels 1 are arranged in an equally spaced array, which helps to achieve uniform distribution of water flow and avoid local water accumulation or poor drainage. After entering the floor drain, the water flow is guided by the vortex guide plates 6 after reaching the upper annular cover 14, forming a stable vortex flow state. The two correspondingly arranged vortex guide plates 6 divide the fluid space into a first fluid space 4 and a second fluid space 7. This structural design not only enhances the rotation effect of the water flow and improves the drainage speed, but also effectively reduces the impact force of the water flow, prevents damage to the internal structure, and reduces the possibility of debris directly entering the filtration area with the water flow.

[0026] After being guided by the vortex, the water flows through a series of filters: the first filter group 5 (located at the top of the two fluid spaces), the second filter group 8 (located at the top and bottom of the lower filter cylinder 15), and the third filter group 9 (located at the outer edge of the lower filter cylinder 15). The third filter group 9 has the smallest pore size, intercepting finer debris, while the first and second filter groups 8 intercept larger particles. This multi-stage filtration design significantly improves filtration efficiency, effectively prevents debris from entering the drainage pipes, avoids clogging, and ensures the long-term stable operation of the drainage system.

[0027] The explosion-proof housing 12 adopts a composite structure of stainless steel substrate and rubber buffer layer, possessing excellent impact resistance and explosion-proof capability. When subjected to external impact or blast waves, the rubber buffer layer effectively absorbs and disperses impact energy, reducing the risk of structural damage, while the stainless steel substrate provides sufficient structural strength and corrosion resistance, ensuring the stability and durability of the drain in extreme environments. Furthermore, the top cover 16 is securely connected to the housing via a locking block 2 and a locking groove 11, further enhancing the overall structure's impact resistance and improving its explosion-proof performance.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An explosion-proof floor drain structure for civil defense projects, comprising an explosion-proof shell (12), characterized in that... The explosion-proof housing (12) is cylindrical and vertically arranged. The explosion-proof housing (12) includes a top cover (16), a vortex drainage filter mechanism and a bottom annular drainage cylinder (13). The top cover (16), the vortex drainage filter mechanism and the bottom annular drainage cylinder (13) are coaxially nested. The explosion-proof housing (12) is made of a stainless steel substrate and a rubber buffer layer. The vortex drainage filter mechanism is composed of an upper annular cover (14) and a lower filter cylinder (15).

2. The explosion-proof floor drain structure for civil defense projects according to claim 1, characterized in that: The top cover (16) is provided with drainage grooves (1), the number of drainage grooves (1) is 6 to 8 and they are arranged in an equally spaced array. The top center of the top cover (16) is provided with a ring handle (3), and the top cover (16) is provided with locking blocks (2) on both sides.

3. The explosion-proof floor drain structure for civil defense projects according to claim 1, characterized in that: The upper annular cover (14) has a vortex guide plate (6) at its top edge. There are two vortex guide plates (6) and they are arranged in a corresponding manner. The vortex guide plates (6) and the upper annular cover (14) are combined to form a first fluid space (4) and a second fluid space (7). The top surfaces of the first fluid space (4) and the second fluid space (7) are provided with a first filter hole group (5). The top and bottom of the lower filter cylinder (15) are provided with a second filter hole group (8). The outer wall edge of the lower filter cylinder (15) is provided with a third filter hole group (9). The aperture of the third filter hole group (9) is smaller than that of the first and second filter hole groups.

4. The explosion-proof floor drain structure for civil defense projects according to claim 1, characterized in that: The upper annular cover (14) and the lower filter cylinder (15) are made of stainless steel, and the edges at the connection between the upper annular cover (14) and the lower filter cylinder (15) are smoothly transitioned arcs.

5. The explosion-proof floor drain structure for civil defense projects according to claim 2, characterized in that: The explosion-proof housing (12) has a top edge inner wall with a slot (11). There are two slots (11) and they are set in a corresponding manner. The slots (11) are associated with the card block (2). An annular guide block (10) is provided between adjacent slots (11).

6. The explosion-proof floor drain structure for civil defense projects according to claim 2, characterized in that: The ring handle (3) is integrally formed with the top cover (16) and has an anti-slip coating on its surface.

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