Urban underground pipe gallery ventilation and air guide structure

Abstract

The utility model discloses an urban underground pipe gallery ventilation and air guide structure, and relates to the technical field of underground pipe galleries, the structure comprises an underground pipe gallery body, the underground pipe gallery body is arranged at the bottom of a soil layer, and a plurality of ventilation structures are fixedly installed on the underground pipe gallery body. The side protection unit can rotate around the ventilation pipe through the cooperation of the outer ring groove and the first sliding block and the cooperation of the second sliding block and the lower ring groove, when the side face is impacted, the side protection unit can convert part of impact force into rotation kinetic energy of the side protection unit through the rotation characteristic, the force unloading effect is achieved, and the service life of the side protection unit is prolonged. The damage of the impact force to the ventilation structure is further reduced, and meanwhile, a damper I and a damping spring I of the side protection unit play a role to further buffer the impact force; and the filtering holes in the protection arc plate and the buffering arc plate can ensure that air can smoothly pass through, and the ventilation effect of the ventilation pipe is not obviously hindered.

Description

Technical Field

[0001] This utility model relates to the field of underground utility tunnel technology, specifically a ventilation and air guiding structure for urban underground utility tunnels. Background Technology

[0002] With the acceleration of urbanization, the construction scale of urban underground utility tunnels is expanding daily. As an important component of urban infrastructure, underground utility tunnels bear the important task of accommodating various pipelines (such as electricity, communications, water supply and drainage), and the stability of their internal environment is crucial for the normal operation of these pipelines. Ventilation is one of the key factors in maintaining the stability of the internal environment of underground utility tunnels. Therefore, the design and performance optimization of ventilation and air-guiding structures in urban underground utility tunnels has always been a focus of industry attention.

[0003] However, when the area where the utility tunnel is located is subjected to external impacts such as construction activities, falling rocks, or other accidental collisions, the ventilation structure is easily damaged. For example, some protective components of the ventilation structure are fixed to their sides and cannot flexibly cope with side impacts or impacts from above. This causes the impact force to act directly on the ventilation duct, resulting in problems such as deformation and rupture of the ventilation duct, which seriously affects the normal functioning of ventilation and may even cause pipeline failures within the utility tunnel, increasing maintenance costs and safety risks.

[0004] Based on this, a ventilation and air guiding structure for urban underground utility tunnels is now provided, which can eliminate the drawbacks of existing structures. Utility Model Content

[0005] The purpose of this invention is to provide a ventilation and air guiding structure for urban underground pipe corridors, so as to solve the problem that the protective components of existing ventilation structures in the background art cannot flexibly cope with impacts from the sides and above.

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

[0007] A ventilation and air-guiding structure for an urban underground utility tunnel includes an underground utility tunnel body, which is located at the bottom of the soil layer, and several ventilation structures are fixedly installed on the underground utility tunnel body.

[0008] The ventilation structure includes a fixed pipe, which is fixedly installed on the underground pipe gallery body. A fixed seat is fixed at the upper end of the soil layer. The fixed seat is fixed to the top of the outer wall of the fixed pipe. A ventilation pipe is fixed at the upper end of the fixed pipe and the outer ring groove. Several ventilation openings are opened through the side wall of the ventilation pipe. Several side protection units are provided on the outer wall of the fixed seat. A top protection unit is provided at the upper end of the ventilation pipe and the several side protection units.

[0009] Preferably, the top protection unit includes a top seat, which is fixed to the upper end of the ventilation pipe. The lower end of the top seat has a lower annular groove, and the top seat is rotatably connected to the side protection unit through the lower annular groove. The upper end of the top seat has a buffer cavity, and the inner sidewall of the buffer cavity is slidably connected to the outer sidewall of the connecting block. The bottom of the buffer cavity is connected to the bottom of the connecting block through a plurality of dampers and damping springs, and each damper is located inside a damping spring.

[0010] Preferably, a conical block is fixed to the upper end of the connecting block.

[0011] Preferably, the side protection unit includes a protective arc plate, and a second slider that matches the lower ring groove is fixed at the upper end of the protective arc plate. The protective arc plate is located on the outer wall of the fixed seat, and an outer ring groove is provided on the outer wall of the fixed seat. A first slider that matches the outer ring groove is fixed at the bottom of the end of the protective arc plate near the fixed seat.

[0012] Preferably, the outer ring groove, slider one and slider two, and the lower ring groove have a T-shaped cross-section.

[0013] Preferably, a buffer arc plate is provided at the end of the protective arc plate away from the fixed seat, and a plurality of dampers and damping springs are provided between the protective arc plate and the buffer arc plate, with each damper located inside a damping spring.

[0014] Preferably, the protective arc plate and the buffer arc plate have several filter holes through their sidewalls.

[0015] Preferably, a bracket is fixed inside the fixed tube, a motor is mounted on the bracket, and a ventilation fan is fixedly connected to the output end of the motor.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model, through the cooperation of the outer ring groove and the first slider, and the cooperation of the second slider and the lower ring groove, enables the side protection unit to rotate around the ventilation duct. When the side is impacted, this rotational characteristic allows the side protection unit to convert part of the impact force into its own rotational kinetic energy, achieving a force relief effect and further reducing the damage caused by the impact force to the ventilation structure. At the same time, the damper and damping spring of the side protection unit play a role in further buffering the impact force; and the filter holes on the protective arc plate and the buffer arc plate can ensure that air can pass through smoothly without significantly obstructing the ventilation effect of the ventilation duct.

[0018] 2. This utility model achieves comprehensive protection for the ventilation duct by combining the side protection unit and the top protection unit, preventing it from being damaged by external impacts and further extending its service life.

[0019] 3. This utility model can guide the external impact force along the conical surface through the conical structure of the conical block, avoid excessive local stress, and reduce the instantaneous impact damage to the connecting block and the ventilation structure below; when an external impact force acts on the conical block at the upper end of the connecting block, the damper and the damping spring can absorb and buffer the impact force, reducing the damage to the ventilation pipe. Attached Figure Description

[0020] Fig. 1 This is a schematic diagram of the structure of this utility model.

[0021] Fig. 2 This is a schematic diagram of the ventilation structure of this utility model.

[0022] Fig. 3 This is a schematic diagram of the side protection unit and the top protection unit in the ventilation structure of this utility model.

[0023] Figure reference numerals: 1. Underground utility tunnel body; 2. Soil layer; 3. Ventilation structure; 301. Fixed pipe; 302. Support; 3021. Motor; 3022. Ventilation fan; 303. Ventilation pipe; 304. Ventilation opening; 305. Fixed seat; 306. Outer ring groove; 31. Side protection unit; 311. Protective arc plate; 312. Slider one; 313. Damping spring one; 314. Damper one; 315. Buffer arc plate; 316. Slider two; 32. Top protection unit; 321. Top seat; 322. Lower ring groove; 323. Buffer cavity; 324. Damper two; 325. Damping spring two; 326. Connecting block; 327. Conical block. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] In one embodiment, such as Figs. 1-3 As shown, a ventilation and air-guiding structure for an urban underground utility tunnel includes an underground utility tunnel body 1, which is located at the bottom of a soil layer 2, and several ventilation structures 3 are fixedly installed on the underground utility tunnel body 1.

[0026] The ventilation structure 3 includes a fixed pipe 301, which is fixedly installed on the underground pipe gallery body 1. A fixed seat 305 is fixed at the upper end of the soil layer 2. The fixed seat 305 is fixed to the top of the outer wall of the fixed pipe 301. A ventilation pipe 303 is fixed at the upper end of the fixed pipe 301 and the outer ring groove 306. A plurality of ventilation openings 304 are provided through the side wall of the ventilation pipe 303. A plurality of side protection units 31 are provided on the outer wall of the fixed seat 305. A top protection unit 32 is provided at the upper end of the ventilation pipe 303 and the plurality of side protection units 31.

[0027] In this embodiment, the air inside the underground utility tunnel 1 can enter the ventilation pipe 303 through the fixed pipe 301 in sequence, and finally achieve ventilation through the ventilation opening 304. In order to prevent the ventilation structure 3 from being damaged by external impact, the side protection unit 31 and the top protection unit 32 provide all-round protection for the ventilation pipe 303, thereby extending the service life of the ventilation structure 3.

[0028] In an optional embodiment, such as Figs. 2-3 As shown, the top protection unit 32 includes a top seat 321, which is fixed to the upper end of the ventilation pipe 303. The lower end of the top seat 321 has a lower annular groove 322. The top seat 321 is rotatably connected to the side protection unit 31 through the lower annular groove 322. The upper end of the top seat 321 has a buffer cavity 323. The inner side wall of the buffer cavity 323 is slidably connected to the outer side wall of the connecting block 326. The bottom of the buffer cavity 323 is connected to the bottom of the connecting block 326 through a plurality of dampers 324 and damping springs 325. Each damper 324 is located inside a damping spring 325.

[0029] A conical block 327 is fixed to the upper end of the connecting block 326.

[0030] It should be noted that when an external impact force acts on the conical block 327, the impact force will be transmitted to the connecting block 326. The connecting block 326 slides in the buffer cavity 323, and the damper 324 and the damping spring 325 deform. The impact force is absorbed and buffered through the damping effect and the elastic deformation of the spring, thereby reducing the damage to the ventilation structure 3.

[0031] When an external object (such as falling rocks or debris) impacts the cone-shaped block 327 at a certain angle, the inclined surface of the cone can guide the impact force to disperse along the cone surface; the cone-shaped block 327 helps to maintain smooth airflow at the upper end of the ventilation pipe 303, ensuring that the ventilation structure 3 can normally realize the ventilation function inside and outside the underground pipe gallery body 1.

[0032] In an optional embodiment, such as Fig. 3 As shown, the side protection unit 31 includes a protective arc plate 311. A slider 316 matching the lower annular groove 322 is fixed at the upper end of the protective arc plate 311. The protective arc plate 311 is located on the outer wall of the fixed seat 305. An outer annular groove 306 is provided on the outer wall of the fixed seat 305. A slider 312 matching the outer annular groove 306 is fixed at the bottom of the end of the protective arc plate 311 near the fixed seat 305.

[0033] The outer annular groove 306, slider one 312 and slider two 316, and lower annular groove 322 have a T-shaped cross-section.

[0034] The protective arc plate 311 is provided with a buffer arc plate 315 at the end away from the fixed base 305. A plurality of dampers 314 and damping springs 313 are provided between the protective arc plate 311 and the buffer arc plate 315, and each damper 314 is located inside a damping spring 313.

[0035] The protective arc plate 311 and the buffer arc plate 315 have several filter holes through their sidewalls.

[0036] It should be noted that when an external impact force acts on the buffer arc plate 315 from the side, the buffer arc plate 315 will move towards the protective arc plate 311, and the damper 314 and the damping spring 313 will deform. The impact force is absorbed and buffered through the damping effect and the elastic deformation of the spring, thereby protecting the ventilation pipe 303 from damage.

[0037] The T-shaped structure allows the protective arc plate 311 to be stably and slidably installed on the outer wall of the fixed seat 305 and the lower end of the top seat 321;

[0038] The several filter holes that are opened through the side walls of the protective arc plate 311 and the buffer arc plate 315 can filter out some external impurities while ensuring ventilation, and further protect the ventilation structure 3.

[0039] In an optional embodiment, such as Fig. 3 As shown, a bracket 302 is fixed inside the fixed tube 301, and a motor 3021 is installed on the bracket 302. The output end of the motor 3021 is fixedly connected to a ventilation fan 3022.

[0040] It should be noted that the motor 3021 drives the ventilation fan 3022 to rotate, thereby accelerating the airflow inside the underground utility tunnel 1.

[0041] The above embodiment discloses a ventilation and air-guiding structure for an urban underground utility tunnel. Inside the underground utility tunnel body 1, a motor 3021 is mounted on a bracket 302 within a fixed pipe 301. When the motor 3021 starts, its output drives a ventilation fan 3022 to rotate. The rotation of the ventilation fan 3022 causes air within the underground utility tunnel body 1 to flow upwards through the fixed pipe 301 and then enter the ventilation duct 303. Several ventilation openings 304 are provided through the sidewall of the ventilation duct 303, allowing air to exchange with the outside environment through these openings, thus ensuring air circulation within the underground utility tunnel body 1 and maintaining suitable environmental conditions.

[0042] The top protective unit 32 is rotatably connected to the side protective unit 31 via the lower annular groove 322. This rotatable connection allows for a certain amount of movement between the top protective unit 32 and the side protective unit 31, enabling them to adapt to a certain degree of external force. When an external impact force acts on the conical block 327, the impact force is transmitted to the connecting block 326. The connecting block 326 slides within the buffer cavity 323, causing the damper 324 and the damping spring 325 to deform. Through damping and the elastic deformation of the spring, the impact force is absorbed and buffered, thereby reducing damage to the ventilation structure 3.

[0043] The upper end of the protective arc plate 311 of the side protection unit 31 is fixed with a slider 316 that matches the lower annular groove 322. The bottom end of the protective arc plate 311 near the fixed seat 305 is fixed with a slider 312 that matches the outer annular groove 306. The cross-section of the outer annular groove 306, slider 312, slider 316, and lower annular groove 322 is a T-shaped structure. This structure allows the protective arc plate 311 to be stably and slidably installed on the outer wall of the fixed seat 305 and the lower end of the top seat 321. A buffer arc plate 315 is provided at the end of the protective arc plate 311 away from the fixed seat 305. Several dampers 314 and damping springs 313 are provided between the protective arc plate 311 and the buffer arc plate 315. Each damper 314 is located inside a damping spring 313. When an external impact force acts on the buffer arc plate 315 from the side, the buffer arc plate 315 will move towards the protective arc plate 311. The damper 314 and the damping spring 313 will deform, absorbing and buffering the impact force through damping and the elastic deformation of the spring, thereby protecting the ventilation duct 303 from damage. At the same time, the several filter holes through the side walls of the protective arc plate 311 and the buffer arc plate 315 can filter out some external impurities while ensuring ventilation, further protecting the ventilation structure 3.

[0044] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A ventilation and air-guiding structure for urban underground utility tunnels, characterized in that, It includes an underground utility tunnel body (1), which is located at the bottom of the soil layer (2), and several ventilation structures (3) are fixedly installed on the underground utility tunnel body (1); The ventilation structure (3) includes a fixed pipe (301), which is fixedly installed on the underground pipe gallery body (1). A fixed seat (305) is fixed at the upper end of the soil layer (2). The fixed seat (305) is fixed to the top of the outer wall of the fixed pipe (301). A ventilation pipe (303) is fixed at the upper end of the fixed pipe (301) and the outer ring groove (306). A number of ventilation openings (304) are opened through the side wall of the ventilation pipe (303). A number of side protection units (31) are provided on the outer wall of the fixed seat (305). A top protection unit (32) is provided at the upper end of the ventilation pipe (303) and the number of side protection units (31).

2. The ventilation and air guiding structure for an urban underground utility tunnel according to claim 1, characterized in that, The top protection unit (32) includes a top seat (321), which is fixed to the upper end of the ventilation pipe (303). The lower end of the top seat (321) is provided with a lower ring groove (322). The top seat (321) is rotatably connected to the side protection unit (31) through the lower ring groove (322). The upper end of the top seat (321) is provided with a buffer cavity (323). The inner side wall of the buffer cavity (323) is slidably connected to the outer side wall of the connecting block (326). The bottom of the buffer cavity (323) is connected to the bottom of the connecting block (326) through several dampers (324) and damping springs (325). Each damper (324) is located inside a damping spring (325).

3. The ventilation and air guiding structure for an urban underground utility tunnel according to claim 2, characterized in that, A conical block (327) is fixed to the upper end of the connecting block (326).

4. The ventilation and air guiding structure for an urban underground utility tunnel according to claim 3, characterized in that, The side protection unit (31) includes a protective arc plate (311). The upper end of the protective arc plate (311) is fixed with a slider two (316) that matches the lower ring groove (322). The protective arc plate (311) is located on the outer wall of the fixed seat (305). The outer wall of the fixed seat (305) is provided with an outer ring groove (306). The bottom of the protective arc plate (311) near the fixed seat (305) is fixed with a slider one (312) that matches the outer ring groove (306).

5. The ventilation and air guiding structure for an urban underground utility tunnel according to claim 4, characterized in that, The outer ring groove (306), slider one (312) and slider two (316), and the lower ring groove (322) have a T-shaped cross-section.

6. The ventilation and air guiding structure for an urban underground utility tunnel according to claim 4, characterized in that, A buffer arc plate (315) is provided at one end of the protective arc plate (311) away from the fixed base (305). A plurality of dampers (314) and damping springs (313) are provided between the protective arc plate (311) and the buffer arc plate (315), and each damper (314) is located inside a damping spring (313).

7. The ventilation and air guiding structure for an urban underground utility tunnel according to claim 6, characterized in that, The protective arc plate (311) and the buffer arc plate (315) have several filter holes through their sidewalls.

8. The ventilation and air guiding structure for an urban underground utility tunnel according to claim 1, characterized in that, A bracket (302) is fixed inside the fixed tube (301), and a motor (3021) is installed on the bracket (302). The output end of the motor (3021) is fixedly connected to a ventilation fan (3022).

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