Ventilation device for municipal pipes
By designing baffles and transmission components to control the ventilation duct outlet, the problem of difficult maintenance in existing devices has been solved, enabling flexible adjustment of exhaust volume and accurate maintenance judgment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GANSU CHUANGXIN CONSTRUCTION ENGINEERING CO LTD
- Filing Date
- 2025-10-09
- Publication Date
- 2026-07-24
Smart Images

Figure CN224551091U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a ventilation device, specifically a ventilation device for municipal pipelines, belonging to the field of municipal facilities technology. Background Technology
[0002] Municipal pipelines are urban public facilities and an important part of urbanization. They are underground pipes used to discharge sewage and rainwater. Underground pipelines are usually arranged horizontally and vertically and interconnected under the city. They are equipped with several openings to facilitate workers to enter the underground pipelines to clean them and prevent blockages.
[0003] After prolonged use, ventilation devices require regular maintenance. This involves closing the vents and checking the ventilation effect at both ends of the pipe to determine if there is any blockage inside the pipe. However, most ventilation devices currently operate with the pipe outlet continuously connected to the internal space of the pipe, which affects maintenance workers' ability to assess the internal condition of the pipe and makes it difficult to adjust the exhaust volume according to the environment in which the ventilation device is used.
[0004] Therefore, a ventilation device for municipal pipelines is proposed here. Utility Model Content
[0005] This utility model proposes a ventilation device for municipal pipelines, which can control multiple baffles to close or open the outlet of the ventilation pipe, and the air volume of the ventilation pipe can be controlled by the angle at which the baffles are used inside the ventilation pipe.
[0006] This utility model is achieved through the following technical solution: a ventilation device for municipal pipelines, including a ventilation pipe, a connecting block is provided inside the ventilation pipe, a set of baffles is rotatably connected to the periphery of the connecting block, a transmission assembly for driving the baffles to rotate is provided on one side of the ventilation pipe, the transmission assembly includes a transmission rod fixed to one side of the baffle and a transmission collar rotatably sleeved on the surface of the ventilation pipe, the end of the transmission rod away from the baffle rotatably passes through the ventilation pipe and is fixedly sleeved with a connecting plate, a transmission groove is opened on one side of the connecting plate, a connecting collar sleeved on the outside of the ventilation pipe is fixed on one side of the transmission collar, and a transmission shaft sliding inside the transmission groove is fixedly sleeved inside the connecting collar.
[0007] Furthermore, the diameter inside the transmission groove is larger than the diameter outside the transmission shaft, allowing the transmission shaft to slide inside the connecting plate following the connecting collar.
[0008] Furthermore, both the upper and lower sides of the transmission collar have rotatable limit collars, and both limit collars are fixedly sleeved around the ventilation pipe.
[0009] Furthermore, a positioning plate is fixed to the bottom surface of the transmission collar, and a bolt is threaded into the internal thread of the positioning plate. A set of positioning holes matching the bolts are evenly opened on the outer surface of the ventilation pipe.
[0010] Furthermore, a connecting pipe is installed on the bottom surface of the ventilation pipe, and the space between the ventilation pipe and the connecting pipe is connected.
[0011] The ventilation duct is equipped with an air suction assembly for exhausting air from inside the duct. The air suction assembly includes a motor fixed to one side of the ventilation duct, an output rod fixed to the output end of the motor, a conical drive wheel fixedly sleeved at the end of the output rod away from the motor, a conical driven wheel meshing around the periphery of the conical drive wheel, and an air suction fan fixed to the top of the conical driven wheel.
[0012] Furthermore, the top of the suction fan is rotatably connected to the inside of the support plate, and the support plate is fixed to the inner wall of the ventilation pipe. A rotating rod is fixed between the support plate and the connecting block.
[0013] Furthermore, a limiting sleeve is rotatably sleeved around the output rod, and the limiting sleeve is fixed inside the ventilation pipe.
[0014] This utility model provides a ventilation device for municipal pipelines, which has the following beneficial effects: This municipal pipeline ventilation device uses a rotating transmission collar to drive the transmission shaft through a connecting collar, causing the connecting plate to rotate outside the ventilation duct. The transmission rod then drives the baffle to rotate inside the ventilation duct. After adjustment, the bolt is rotated to enter the positioning hole, which can fix the position of the transmission collar. It can control multiple baffles to close or open the outlet of the ventilation duct, and the angle of the baffle inside the ventilation duct can control the amount of air discharged from the ventilation duct. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the suction component in this utility model; Figure 3 This is a three-dimensional structural diagram of the baffle in this utility model; Figure 4 This is a three-dimensional structural diagram of the transmission component in this utility model.
[0016] Explanation of reference numerals in the attached figures 1. Ventilation duct; 11. Positioning hole; 2. Connecting block; 21. Rotating rod; 3. Baffle; 4. Transmission assembly; 41. Transmission rod; 42. Connecting plate; 43. Transmission groove; 44. Transmission collar; 45. Connecting collar; 46. Transmission shaft; 47. Limiting collar; 48. Positioning plate; 49. Bolt; 5. Suction assembly; 51. Motor; 52. Output rod; 53. Conical drive wheel; 54. Conical driven wheel; 55. Support plate; 56. Suction fan; 57. Limiting sleeve; 6. Connecting pipe. Detailed Implementation
[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.
[0018] Please see Figures 1-4 The present invention proposes the following implementation scheme: a ventilation device for municipal pipelines, including a ventilation pipe 1, a connecting block 2 is provided inside the ventilation pipe 1, a set of baffles 3 are rotatably connected to the periphery of the connecting block 2, a transmission assembly 4 for driving the baffles 3 to rotate is provided on one side of the ventilation pipe 1, the transmission assembly 4 includes a transmission rod 41 fixed to one side of the baffle 3 and a transmission collar 44 rotatably sleeved on the surface of the ventilation pipe 1, the end of the transmission rod 41 away from the baffle 3 rotatably passes through the ventilation pipe 1 and is fixedly sleeved with a connecting plate 42, a transmission groove 43 is opened on one side of the connecting plate 42, a connecting collar 45 is fixedly sleeved on one side of the transmission collar 44 and sleeved on the outside of the ventilation pipe 1, and a transmission shaft 46 that slides inside the transmission groove 43 is fixedly sleeved inside the connecting collar 45.
[0019] Please refer to this carefully. Figure 3 and Figure 4 The inner diameter of the transmission groove 43 is larger than the outer diameter of the transmission shaft 46, so that the transmission shaft 46 can slide inside the connecting plate 42 following the connecting collar 45.
[0020] Both the upper and lower sides of the transmission collar 44 have rotatable limit collars 47, and both limit collars 47 are fixedly sleeved around the ventilation pipe 1.
[0021] In the above scheme, the rotating transmission collar 44 drives the transmission shaft 46 to move through the connecting collar 45, so that the connecting plate 42 rotates outside the ventilation pipe 1, and drives the baffle 3 to rotate inside the ventilation pipe 1 through the transmission rod 41.
[0022] Please refer to this carefully. Figure 3A positioning plate 48 is fixed on the bottom surface of the transmission sleeve 44. A bolt 49 is threaded inside the positioning plate 48. A set of positioning holes 11 that match the bolt 49 are evenly opened on the outer surface of the ventilation pipe 1.
[0023] In the above scheme, rotating the bolt 49 allows it to enter the positioning hole 11, thereby fixing the position of the transmission collar 44.
[0024] Please refer to this carefully. Figure 1 A connecting pipe 6 is installed on the bottom surface of the ventilation pipe 1, and the space between the ventilation pipe 1 and the connecting pipe 6 is connected.
[0025] Please refer to this carefully. Figure 2 The ventilation duct 1 is equipped with a suction assembly 5 for exhausting air from the duct. The suction assembly 5 includes a motor 51 fixed to one side of the ventilation duct 1. An output rod 52 is fixed to the output end of the motor 51. A conical drive wheel 53 is fixedly sleeved at the end of the output rod 52 away from the motor 51. A conical driven wheel 54 meshes around the periphery of the conical drive wheel 53. A suction fan 56 is fixed to the top of the conical driven wheel 54.
[0026] Please refer to this carefully. Figure 2 and Figure 4 The top of the suction fan 56 is rotatably connected to the inside of the support plate 55, and the support plate 55 is fixed to the inner wall of the ventilation pipe 1. A rotating rod 21 is fixed between the support plate 55 and the connecting block 2.
[0027] Please refer to this carefully. Figure 2 The output rod 52 is rotatably sleeved with a limiting sleeve 57, and the limiting sleeve 57 is fixed inside the ventilation pipe 1.
[0028] In the above scheme, the starting motor 51 drives the output rod 52 to rotate, and through the cooperation between the cone driving wheel 53 and the cone driven wheel 54, it drives the suction fan 56 to rotate inside the ventilation pipe 1, which can exhaust the air inside the connecting pipe 6 through the ventilation pipe 1.
[0029] In use, the following steps are taken: the starting motor 51 drives the output rod 52 to rotate, and through the cooperation between the cone driving wheel 53 and the cone driven wheel 54, the suction fan 56 rotates inside the ventilation pipe 1, which can exhaust the air inside the connecting pipe 6 through the ventilation pipe 1; the rotating transmission sleeve 44 drives the transmission shaft 46 to move through the connecting sleeve 45, so that the connecting plate 42 rotates outside the ventilation pipe 1, and drives the baffle 3 to rotate inside the ventilation pipe 1 through the transmission rod 41. After adjustment, the rotating bolt 49 is rotated so that the bolt 49 enters the positioning hole 11, which can fix the position of the transmission sleeve 44, control the multiple baffles 3 to close or open the outlet of the ventilation pipe 1, and control the exhaust volume of the ventilation pipe 1 by the angle of the baffles 3 inside the ventilation pipe 1.
[0030] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A ventilation device for municipal pipelines, comprising a ventilation pipe (1), characterized in that: The ventilation pipe (1) is provided with a connecting block (2) inside. A set of baffles (3) is rotatably connected to the periphery of the connecting block (2). A transmission assembly (4) for driving the baffles (3) to rotate is provided on one side of the ventilation pipe (1). The transmission assembly (4) includes a transmission rod (41) fixed on one side of the baffle (3) and a transmission collar (44) rotatably sleeved on the surface of the ventilation pipe (1). The end of the transmission rod (41) away from the baffle (3) rotatably passes through the ventilation pipe (1) and is fixedly sleeved with a connecting plate (42). A transmission groove (43) is opened on one side of the connecting plate (42). A connecting collar (45) sleeved on the outside of the ventilation pipe (1) is fixed on one side of the transmission collar (44). A transmission shaft (46) sliding inside the transmission groove (43) is fixedly sleeved inside the connecting collar (45). The ventilation pipe (1) is equipped with a suction assembly (5) for exhausting air from the pipe. The suction assembly (5) includes a motor (51) fixed on one side of the ventilation pipe (1). An output rod (52) is fixed to the output end of the motor (51). A conical drive wheel (53) is fixedly sleeved at the end of the output rod (52) away from the motor (51). A conical driven wheel (54) meshes with the periphery of the conical drive wheel (53). A suction fan (56) is fixed to the top of the conical driven wheel (54).
2. A ventilation device for municipal pipelines according to claim 1, characterized in that: The diameter inside the transmission groove (43) is larger than the diameter outside the transmission shaft (46), so that the transmission shaft (46) can slide inside the connecting plate (42) following the connecting collar (45).
3. A ventilation device for municipal pipelines according to claim 1, characterized in that: The transmission collar (44) has rotatable limit collars (47) on both the upper and lower sides, and both limit collars (47) are fixedly sleeved on the periphery of the ventilation pipe (1).
4. A ventilation device for municipal pipelines according to claim 1, characterized in that: The bottom surface of the transmission collar (44) is fixed with a positioning plate (48), and the internal thread of the positioning plate (48) is fitted with a bolt (49). A set of positioning holes (11) matching the bolt (49) are evenly opened on the outer surface of the ventilation pipe (1).
5. A ventilation device for municipal pipelines according to claim 1, characterized in that: A connecting pipe (6) is installed on the bottom surface of the ventilation pipe (1), and the space between the ventilation pipe (1) and the connecting pipe (6) is connected.
6. A ventilation device for municipal pipelines according to claim 1, characterized in that: The top of the suction fan (56) is rotatably connected to the inside of the support plate (55), and the support plate (55) is fixed to the inner wall of the ventilation pipe (1). A rotating rod (21) is fixed between the support plate (55) and the connecting block (2).
7. A ventilation device for municipal pipelines according to claim 1, characterized in that: The output rod (52) is rotatably sleeved with a limiting sleeve (57), and the limiting sleeve (57) is fixed inside the ventilation pipe (1).