Anti-seismic reinforced ventilation pipeline of civil air defense system

Abstract

The utility model provides an anti-seismic reinforced ventilating duct for a civil air defense system, which belongs to the technical field of a civil air defense pipe and comprises the civil air defense pipe. The number of the air pipe fixing arms is multiple, and the multiple air pipe fixing arms are all fixedly connected to the outer surface of the human wind prevention pipe; the number of the anti-vibration-falling assemblies is multiple, each anti-vibration-falling assembly comprises an air pipe supporting barrel, a sliding connecting groove, a threaded mounting groove, a screw sliding groove, a connecting screw, a screw twisting rotating block, a connecting cross-shaped block and a connecting cross-shaped groove, the air pipe supporting barrel is arranged at the upper end of the air pipe fixing arm, the sliding connecting groove is formed in the air pipe supporting barrel, and the threaded mounting groove is formed in the threaded mounting groove. The threaded installation groove is formed in the upper end of the air pipe fixing arm, the screw rod sliding groove is formed in the lower inner wall of the sliding connection groove, the threaded connection structure is sealed in the air pipe supporting barrel, transmission connection is automatically disconnected after installation is achieved in combination with the separation assembly, and the problem of thread loosening caused by vibration or impact or environmental corrosion is effectively solved.

Description

Technical Field

[0001] This utility model belongs to the field of civil defense ventilation duct technology, specifically relating to a seismic-resistant and reinforced ventilation duct for civil defense systems. Background Technology

[0002] In existing technologies, air ducts for civil defense are a key component of the ventilation system in civil defense projects, and their design and installation are crucial for ensuring air quality and safety in underground protected spaces. Existing air ducts for civil defense not only need to possess good airtightness and corrosion resistance, but also need to meet specific seismic requirements to ensure functional integrity under extreme conditions such as earthquakes or explosions.

[0003] Authorized publication number "CN219366976U" discloses a duct seismic support bracket, which includes longitudinal bars and transverse bars, each with multiple longitudinal and transverse bars. One end of each longitudinal bar is fixedly connected to the roof, and transverse bars are arranged between adjacent longitudinal bars. Both ends of each transverse bar are fixedly connected to the side walls of adjacent longitudinal bars. The transverse bars are hollow inside, and a sliding groove is formed through the top wall of the transverse bar along its length. Angle brackets are provided at both ends of the upper surface of the transverse bar. A sliding rod is fixedly connected to the side of the angle bracket near the transverse bar. The end of the sliding rod away from the angle bracket extends through the sliding groove into the transverse bar. A fixing block and a locking block are provided inside the transverse bar. The fixing block is fixedly connected to the inner bottom wall of the transverse bar. A first toothed ridge is provided on the upper surface of the fixing block. The locking block is located above the fixing block and is fixedly connected to the sliding rod on the side near the locking block. A second toothed ridge is provided on the side of the locking block near the fixing block. The second toothed ridge and the first toothed ridge mesh and fit together. This application has the effect of improving the applicability of the support bracket.

[0004] The aforementioned new type of support has the effect of improving the applicability of the support and hanger. However, when fixing the upper and lower ends of the air duct, the exposed threaded system is still used for fixing. The vibration generated during earthquakes, explosions, or equipment operation can cause the threaded connection to gradually loosen. Especially in civil defense systems, the consequences not only affect the ventilation effect, but may also endanger the safe operation of the entire protection system. Utility Model Content

[0005] The purpose of this utility model is to provide a seismically reinforced ventilation duct for civil defense systems, which aims to solve the problem that the threaded connection will gradually loosen due to vibrations generated during earthquakes, explosions, or equipment operation in the existing technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A seismically reinforced ventilation duct for civil defense systems includes:

[0008] Civil defense ventilation pipes;

[0009] The air duct fixing arm is provided in multiple ways, and all multiple air duct fixing arms are fixedly connected to the outer surface of the air defense air duct;

[0010] The anti-vibration drop assembly comprises multiple sets, each set including a duct support cylinder, a sliding connection groove, a threaded mounting groove, a screw slide groove, a connecting screw, a screw turning block, a connecting cross block, and a connecting cross groove. The duct support cylinder is located at the upper end of the duct fixing arm. The sliding connection groove is located inside the duct support cylinder. The threaded mounting groove is located at the upper end of the duct fixing arm. The screw slide groove is located on the lower inner wall of the sliding connection groove. The connecting screw is rotatably connected to the screw slide groove and threadedly connected to the threaded mounting groove. The screw turning block is located inside the sliding connection groove. The connecting cross block is fixedly connected to the lower end of the screw turning block. The connecting cross groove is located at the upper end of the connecting screw and matches the connecting cross block.

[0011] The separation assembly is provided in multiple sets. The separation assembly is connected to the screw rotating block and is separated from the connecting cross block and the connecting cross groove by sliding up and down in the sliding connecting groove through the spring force.

[0012] As a preferred embodiment of this utility model, each of the separation components includes a lifting plate, a lifting spring, and a screw turning groove. The lifting plate is slidably connected in the sliding connecting groove, the lifting spring is fixedly connected to the lower end of the lifting plate and the lower inner wall of the sliding connecting groove, the screw turning groove is opened at the upper end of the lifting plate, and the connecting cross block rotates in the screw turning groove.

[0013] In a preferred embodiment of this utility model, an external turning rod is fixedly connected to the upper end of the screw turning block, and a cross-shaped cutter is provided at the upper end of the external turning rod.

[0014] As a preferred embodiment of this utility model, a limiting groove is provided on the side end of the lifting plate, and a limiting slider is fixedly connected to the inner circumferential wall of the sliding connecting groove, and the limiting slider slides in the limiting groove.

[0015] As a preferred embodiment of this utility model, each of the multiple duct support cylinders is fixedly connected to a clamping frame at its side end, and the clamping frame is located at the upper and lower ends of the air-raid shelter duct.

[0016] As a preferred embodiment of this utility model, each of the multiple duct support cylinders is provided with a support rope, and the support rope connects the multiple duct support cylinders in series.

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

[0018] 1. In this solution, the threaded connection structure is enclosed inside the duct support cylinder, and the transmission connection is automatically disconnected after installation by combining the separation component. This effectively prevents the thread from loosening due to vibration, impact or environmental corrosion, and significantly improves the stability and seismic performance of the ventilation duct system.

[0019] 2. In this solution, through this device, the design not only enhances the safety of the overall structure, but also simplifies the later maintenance operations, so that the air duct can still maintain its functional integrity in extreme environments. It is suitable for application scenarios with extremely high safety requirements, such as civil defense projects. 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 three-dimensional structural view of the present invention;

[0022] Figure 2 This is an exploded view of the structure in this utility model;

[0023] Figure 3 This is an exploded cross-sectional view of the structure in this utility model;

[0024] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0025] In the diagram: 1. Air defense ventilation duct; 2. Duct fixing arm; 3. Duct support cylinder; 4. Sliding connection groove; 5. Threaded mounting groove; 6. Screw slide groove; 7. Connecting screw; 8. Screw turning block; 9. Connecting cross block; 10. Connecting cross groove; 11. Lifting plate; 12. Lifting spring; 13. External turning rod; 14. Cross-shaped cutter; 15. Limiting slide groove; 16. Limiting slider; 17. Clamping frame; 18. Support rope; 19. Screw turning slide groove. 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] A seismically reinforced ventilation duct for civil defense systems includes:

[0030] Civil defense ventilation pipe 1;

[0031] Duct fixing arm 2, multiple duct fixing arms 2 are provided, and multiple duct fixing arms 2 are fixedly connected to the outer surface of the air defense duct 1;

[0032] The anti-vibration drop assembly consists of multiple sets. Each set includes a duct support cylinder 3, a sliding connection groove 4, a threaded mounting groove 5, a screw slide groove 6, a connecting screw 7, a screw turning block 8, a connecting cross block 9, and a connecting cross groove 10. The duct support cylinder 3 is located at the upper end of the duct fixing arm 2. The sliding connection groove 4 is located inside the duct support cylinder 3. The threaded mounting groove 5 is located at the upper end of the duct fixing arm 2. The screw slide groove 6 is located on the lower inner wall of the sliding connection groove 4. The connecting screw 7 is rotatably connected to the screw slide groove 6 and threadedly connected to the threaded mounting groove 5. The screw turning block 8 is located inside the sliding connection groove 4. The connecting cross block 9 is fixedly connected to the lower end of the screw turning block 8. The connecting cross groove 10 is located at the upper end of the connecting screw 7 and matches the connecting cross block 9.

[0033] The separation assembly is provided in multiple sets. The separation assembly is connected to the screw rotating block 8. The connecting cross block 9 and the connecting cross groove 10 are separated by the spring force of the spring sliding up and down in the sliding connecting groove 4.

[0034] In a specific embodiment of this utility model, the air-raid shelter duct 1 serves as the main ventilation duct for transporting air. The duct fixing arms 2 are all fixedly connected to the outer surface of the air-raid shelter duct 1 to connect the duct to the building structure. A sliding connection groove 4 is formed inside the duct support cylinder 3, providing vertical movement space for the connecting components. A threaded mounting groove 5 is formed at the upper end of the duct fixing arm 2 for fixing with the connecting screw 7. The connecting screw 7 is rotatably connected to the screw sliding groove 6 and threadedly connected with the threaded mounting groove 5 to complete the fixing of the duct. The connecting cross groove 10 matches the connecting cross block 9, forming a detachable transmission connection. During duct installation, the duct support cylinder 3 is sleeved on the top of the duct fixing arm 2. A tool is inserted into the screw, and the rotating block 8 is turned and pressed down until the connection is complete. The cross block 9 is inserted into the connecting cross groove 10, and then rotated. The connecting screw 7 is screwed into the threaded mounting groove 5, and the duct fixing arm 2 is firmly fixed to the building structure. After installation, the tools are removed, and the lifting spring 12 pushes the lifting plate 11 to rise, so that the connecting cross block 9 is disengaged from the connecting cross groove 10, and the transmission connection is disconnected. In the event of vibration or impact, the connecting screw 7 has been fully tightened and is in a closed state. The connecting cross block 9 and the connecting cross groove 10 have been separated, which avoids the transmission components from malfunctioning or loosening due to vibration. The duct support cylinder 3 plays a protective role, preventing the connecting screw 7 from being exposed and improving the overall seismic resistance of the structure. Through the separation component design, the transmission connection is automatically disconnected in the non-working state to prevent the screw from loosening due to vibration.

[0035] Please refer to the details. Figures 1-4 Each set of separation components includes a lifting plate 11, a lifting spring 12, and a screw turning groove 19. The lifting plate 11 is slidably connected in the sliding connecting groove 4. The lifting spring 12 is fixedly connected to the lower end of the lifting plate 11 and the lower inner wall of the sliding connecting groove 4. The screw turning groove 19 is opened at the upper end of the lifting plate 11, and the connecting cross block 9 rotates in the screw turning groove 19.

[0036] In this embodiment: the lifting plate 11 can slide up and down along the axial direction of the sliding connecting groove 4. The lifting spring 12 provides an upward elastic restoring force under normal conditions, keeping the lifting plate 11 in a high position. When the tool is not inserted, it pushes the lifting plate 11 up, realizing the automatic separation of the connecting cross block 9 and the connecting cross groove 10. The screw turning groove 19 is sleeved on the outside of the screw turning block 8, driving the screw turning block 8 to move up and down. When the air duct is installed, the screw turning block 8 drives the connecting cross block 9 and the lifting plate 11 to descend together. The lifting spring 12 is compressed, and the connecting cross block 9 enters the connecting cross groove 10 to form a transmission connection. After the tool is removed, the lifting spring 12 returns to its original state, pushing the lifting plate 11 to rise again.

[0037] Please refer to the details. Figures 1-4The upper end of the screw-rotating block 8 is fixedly connected to an external rotating rod 13, and the upper end of the external rotating rod 13 is provided with a cross-shaped cutter 14.

[0038] In this embodiment: the external screw-on rod 13 serves as an external operation interface, with its upper end located outside the duct support cylinder 3. The cross-shaped screwdriver 14 is located at the top of the external screw-on rod 13 and can be used with conventional screwdrivers, electric screwdrivers, and other tools. When a standard cross-shaped screwdriver or a special tool is inserted into the cross-shaped screwdriver 14, the connecting cross block 9 moves down and engages with the connecting cross groove 10 to form a transmission connection. The rotating tool can drive the connecting screw 7 to rotate through this transmission path, thereby completing the tightening or loosening of the duct fixing arm 2.

[0039] Please refer to the details. Figures 1-4 A limiting groove 15 is provided on the side end of the lifting plate 11, and a limiting slider 16 is fixedly connected to the inner circumference of the sliding connection groove 4. The limiting slider 16 slides in the limiting groove 15.

[0040] In this embodiment: the limiting groove 15 is formed on the side end surface of the lifting plate 11 and is arranged along the height direction of the lifting plate 11. It is in the form of a circular groove and is used to cooperate with the limiting slider 16 to restrict the rotational freedom of the lifting plate 11 and ensure that the lifting plate 11 can only move up and down in a straight line along the axis of the sliding connecting groove 4.

[0041] Please refer to the details. Figures 1-4 Each of the multiple air duct support cylinders 3 has a clamping frame 17 fixedly connected to its side end. The clamping frame 17 is located at the upper and lower ends of the air duct 1.

[0042] In this embodiment, the clamping frame 17 securely clamps the air duct 1 between multiple air duct support cylinders 3 through its slot structure. When vibration or impact occurs, the clamping frame 17 can effectively limit the lateral displacement of the air duct, prevent it from shaking or falling off, and work together with the air duct fixing arm 2 and the anti-vibration and drop assembly to form a multi-point constraint system, thereby improving the overall structural rigidity.

[0043] Please refer to the details. Figures 1-4 Each of the multiple duct support cylinders 3 is equipped with a support rope 18, which connects the multiple duct support cylinders 3 in series.

[0044] In this embodiment, multiple duct support cylinders 3 are connected in series by support ropes 18 to form an integral force-bearing unit. When subjected to vibration or impact, the support cylinders can restrain each other and transfer the load, avoiding chain reactions caused by individual point failures, and effectively improving the structural stability and load-bearing capacity of the ventilation duct system.

[0045] The working principle and usage process of this utility model: The air duct 1 serves as the main ventilation duct for transporting air. The duct fixing arms 2 are all fixedly connected to the outer surface of the air duct 1 to connect the duct to the building structure. A sliding connection groove 4 is located inside the duct support cylinder 3, providing vertical movement space for the connecting components. A threaded mounting groove 5 is located at the upper end of the duct fixing arm 2, used to cooperate with the connecting screw 7 for fixation. The connecting screw 7 is rotatably connected to the screw sliding groove 6 and threadedly connected to the threaded mounting groove 5 to complete the fixation of the duct. The connecting cross groove 10 matches the connecting cross block 9, forming a detachable transmission connection. During duct installation, the duct support cylinder 3 is sleeved on the top of the duct fixing arm 2. A tool is inserted into the screw, and the rotating block 8 is turned and pressed down until... The connecting cross block 9 is inserted into the connecting cross groove 10, and then rotated. The connecting screw 7 is screwed into the threaded mounting groove 5, and the duct fixing arm 2 is firmly fixed to the building structure. After installation, the tools are removed, and the lifting spring 12 pushes the lifting plate 11 to rise, so that the connecting cross block 9 is disengaged from the connecting cross groove 10, and the transmission connection is disconnected. In the event of vibration or impact, the connecting screw 7 has been fully tightened and is in a closed state. The connecting cross block 9 and the connecting cross groove 10 have been separated, which prevents the transmission components from malfunctioning or loosening due to vibration. The duct support cylinder 3 plays a protective role, preventing the connecting screw 7 from being exposed and improving the overall seismic resistance of the structure. Through the separation component design, the transmission connection is automatically disconnected in the non-working state to prevent the screw from loosening due to vibration.

[0046] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are 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. A seismically reinforced ventilation duct for civil defense systems, characterized in that: include: Civil defense ventilation pipe (1); Duct fixing arm (2), multiple duct fixing arms (2) are provided, and multiple duct fixing arms (2) are fixedly connected to the outer surface of the air defense duct (1); The anti-vibration drop assembly comprises multiple sets, each set including a duct support cylinder (3), a sliding connection groove (4), a threaded mounting groove (5), a screw slide groove (6), a connecting screw (7), a screw turning block (8), a connecting cross block (9), and a connecting cross groove (10). The duct support cylinder (3) is located at the upper end of the duct fixing arm (2), the sliding connection groove (4) is opened inside the duct support cylinder (3), and the threaded mounting groove (5) is opened inside the duct support cylinder (3). At the upper end of the duct fixing arm (2), the screw slide groove (6) is opened on the lower inner wall of the sliding connection groove (4), the connecting screw (7) is rotatably connected in the screw slide groove (6) and threadedly connected to the threaded mounting groove (5), the screw turning block (8) is located in the sliding connection groove (4), the connecting cross block (9) is fixedly connected to the lower end of the screw turning block (8), and the connecting cross groove (10) is opened at the upper end of the connecting screw (7) and matches the connecting cross block (9); The separation assembly is provided in multiple sets. The separation assembly is connected to the screw turning block (8). The connecting cross block (9) and the connecting cross groove (10) are separated by the spring force of the spring sliding up and down in the sliding connecting groove (4).

2. The seismically reinforced ventilation duct for civil defense systems according to claim 1, characterized in that: Each of the separation components includes a lifting plate (11), a lifting spring (12), and a screw turning groove (19). The lifting plate (11) is slidably connected to the sliding connecting groove (4). The lifting spring (12) is fixedly connected to the lower end of the lifting plate (11) and the lower inner wall of the sliding connecting groove (4). The screw turning groove (19) is opened at the upper end of the lifting plate (11). The connecting cross block (9) rotates in the screw turning groove (19).

3. The seismically reinforced ventilation duct for civil defense systems according to claim 2, characterized in that: The upper end of the screw-rotating block (8) is fixedly connected to an external rotating rod (13), and the upper end of the external rotating rod (13) is provided with a cross-shaped cutter (14).

4. The seismically reinforced ventilation duct for civil defense systems according to claim 3, characterized in that: The lifting plate (11) has a limiting groove (15) on its side end, and the sliding connecting groove (4) has a limiting slider (16) fixedly connected to its inner circumference. The limiting slider (16) slides in the limiting groove (15).

5. The seismically reinforced ventilation duct for civil defense systems according to claim 4, characterized in that: Each of the multiple duct support cylinders (3) is fixedly connected to a clamping frame (17) at its side end. The clamping frame (17) is located at the upper and lower ends of the air-raid shelter duct (1).

6. The seismically reinforced ventilation duct for civil defense systems according to claim 5, characterized in that: Each of the multiple duct support cylinders (3) is provided with a support rope (18), and the support rope (18) connects the multiple duct support cylinders (3) in series.

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