Automatic ventilation device for sewage well

Abstract

The utility model discloses an automatic ventilation device for a sewage well, and provides a solution aiming at the problems of low manual ventilation efficiency and high energy consumption of the conventional sewage well. The device is mainly composed of a jacking pipe, an air bag and a gas exchange structure, the jacking pipe is vertically and slidably arranged below the well lid, the bottom of the jacking pipe is connected with the air bag, and the gas exchange structure rotating during jacking is arranged on the well lid. The structure comprises a containing groove and a ventilation plate rotating horizontally, and the top pipe is connected with the ventilation plate through a transmission structure composed of a gear and a rack. The jacking pipe is divided into a metal section and a plastic section, a guide block is arranged on the well wall to assist the jacking pipe in sliding, and a limiting piece is arranged to control the moving range. The air bag drives the jacking pipe to reciprocate through the change of water flow in the sewage pipeline, the ventilation plate is driven to rotate through the transmission structure, and continuous ventilation in the sewage well is achieved. The device does not need external power, can efficiently complete ventilation by means of natural change of water flow, effectively reduces energy consumption, solves the problem of ventilation of scattered sewage wells, and guarantees operation safety and surrounding environment health.

Description

Technical Field

[0001] This utility model relates to the field of sewage well ventilation technology, and in particular to an automatic sewage well ventilation device. Background Technology

[0002] Sewage wells often produce toxic and harmful gases such as hydrogen sulfide and methane due to sewage flow and microbial activity. If these gases accumulate in large quantities, they can not only corrode pipes but also cause safety accidents, threatening the health of workers and nearby residents. Currently, ventilation methods mostly involve manually opening manhole covers or using external power equipment. Moreover, sewage wells are scattered, resulting in low efficiency, high energy consumption, and the inability to provide continuous ventilation. Summary of the Invention

[0003] The technical problem to be solved by this utility model is that the ventilation of sewage wells currently requires manual opening of the well cover, which results in low ventilation efficiency and high energy consumption inside the sewage well.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an automatic ventilation device for sewage wells, including a jacking pipe that is vertically slidably arranged directly below the manhole cover of the sewage well, an air bladder connected to the bottom of the jacking pipe, and a gas exchange structure that rotates when the manhole cover is lifted.

[0005] Preferably, the gas exchange structure includes a receiving groove formed on the well cover, a ventilation plate horizontally rotatably arranged in the receiving groove, the jacking pipe located on one side of the ventilation plate, and a transmission structure provided between the jacking pipe and the ventilation plate.

[0006] Preferably, the transmission structure includes a gear fixed to the mounting shaft of the ventilation plate and a rack fixed parallel to the top pipe, wherein the rack meshes with the gear.

[0007] Preferably, a gap is provided between the receiving groove and the ventilation plate, and an adapter groove for accommodating the top pipe and the transmission structure is provided on one side of the receiving groove.

[0008] Preferably, the top pipe includes a top metal section and a bottom plastic section, the sidewall of the metal section has a groove, the rack is welded to the metal section, and the metal section and the plastic section are connected by threads.

[0009] Preferably, the plastic section of the jacking pipe is a high-density polyethylene pipe.

[0010] Preferably, a guide block is fixed on the inner wall of the sewage well, and the jacking pipe is vertically slidably connected to the guide block, with the guide blocks being equidistantly distributed in the vertical direction.

[0011] Preferably, a limiting plate is fixedly installed on the top pipe, the limiting plate is correspondingly arranged with the guide block, the guide block is located between a pair of limiting plates, the outer diameter of the limiting plate is larger than the inner diameter of the guide block, and the distance between the same pair of limiting plates does not exceed the length of the rack.

[0012] Preferably, the bottom of the top pipe is connected to an inverted bucket-shaped mounting sleeve, and the airbag is fixed to the inner bottom of the mounting sleeve.

[0013] Preferably, the bottom of the mounting sleeve is coaxially fixedly connected to an annular sleeve, and the annular sleeve covers the middle part of the airbag, with the edge of the airbag fitting against the inner wall of the annular sleeve.

[0014] This utility model provides an automatic ventilation device for sewage wells, which has the following beneficial effects.

[0015] By installing a horizontally rotatable ventilation plate on the manhole cover, and arranging airbags and jacking pipes inside the sewage well, the airbags move up and down inside the sewage well because the water flow in the sewage pipe is not constant. The airbags can drive the jacking pipe to move back and forth in the vertical direction. The jacking pipe drives the ventilation plate to rotate back and forth through a transmission device. During the rotation of the ventilation plate, continuous and efficient air exchange is achieved inside the sewage well. This not only achieves efficient ventilation, but also enables continuous ventilation without external power. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0018] Figure 2 for Figure 1 A magnified view of region A in the middle.

[0019] Figure 3 This is a schematic diagram of the structure of the top of the manhole cover in an embodiment of this utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the airbag in an embodiment of this utility model.

[0021] In the diagram: 1. Sewage well; 2. Pipe jacking; 3. Manhole cover; 4. Mounting sleeve; 5. Guide block; 6. Airbag; 7. Ventilation plate; 8. Gear; 9. Rack; 10. Limiting plate. Detailed Implementation

[0022] like Figure 1-4 As shown, this utility model provides an automatic ventilation device for sewage wells, including a jacking pipe 2 vertically slidably arranged below the well cover 3 of the sewage well 1, an airbag 6 connected to the bottom of the jacking pipe 2, and a gas exchange structure that rotates when lifted on the well cover 3.

[0023] A vertically sliding jacking pipe 2 is installed inside the sewage well 1. An air bladder 6 is connected to the jacking pipe 2. The water flow inside the sewage well 1 is not constant, so the air bladder 6 inside the sewage well 1 is in a state of up and down floating. When the water volume rises, the air bladder 6 floats up, which drives the jacking pipe 2 to move upward, thereby pushing the ventilation plate 7 to rotate. During the rotation of the ventilation plate 7, negative pressure is generated, which accelerates the outflow of gas inside the sewage well 1 and realizes ventilation. When the water volume drops, the float 6 moves downward, which in turn drives the ventilation plate 7 to rotate in the opposite direction, thereby realizing continuous and efficient ventilation inside the sewage well 1.

[0024] like Figure 1 and Figure 2 As shown, the gas exchange structure is opened after being lifted by the jacking pipe 2. The gas exchange structure includes a receiving groove on the manhole cover 3, within which a ventilation plate 7 is horizontally rotatably mounted. The jacking pipe 2 is located on one side of the ventilation plate 7, and a transmission structure is provided between the jacking pipe 2 and the ventilation plate 7. Utilizing the transmission structure between the jacking pipe 2 and the ventilation plate 7, the ventilation plate 7 reciprocates during the lifting and lowering movement of the jacking pipe 2, thus maintaining high ventilation efficiency. The receiving groove ensures stable support for the areas of the manhole cover 3 other than the ventilation plate 7 area.

[0025] like Figure 2 and Figure 3 As shown, to achieve stable transmission between the jacking pipe 2 and the ventilation plate 7, the transmission structure includes a gear 8 fixed to the mounting shaft of the ventilation plate 7 and a rack 9 fixed parallel to the jacking pipe 2, with the rack 9 meshing with the gear 8. The ventilation plate 7 is a circular plate with thin edges and a thicker middle section. The mounting shaft is fixedly connected to the middle of the ventilation plate 7, and the mounting shaft is rotatably connected inside the manhole cover 3. When the jacking pipe 2 moves vertically, it drives the rack 9 to move vertically, and the rack 9 drives the ventilation plate 7 to reciprocate through the gear 8 it meshes with.

[0026] like Figure 2 As shown, to improve the safety of the manhole cover 3 application, a gap is provided between the receiving groove and the ventilation plate 7, and an adapter groove is provided on one side of the receiving groove to accommodate the jacking pipe 2 and the transmission structure. Both the receiving groove and the adapter groove maintain a small gap with the internal receiving structure to avoid situations such as falling.

[0027] Additionally, it is worth noting that due to its special nature, this ventilation device is usually integrated into the manhole cover within the green belt during installation to prevent obstruction of road traffic. Furthermore, to ensure safety, a fluorescent coating is typically applied to both sides of the ventilation plate 7. Moreover, the sewage pipe section needs to be selected, usually choosing a section with significant fluctuations in internal sewage volume to ensure the rotation frequency of the ventilation plate 7.

[0028] like Figure 2 As shown, to ensure the stability of the rack 9 connection, the top tube 2 includes a top metal section and a bottom plastic section. The metal section has a groove on its side wall, and the rack is welded to the metal section. The metal section and the plastic section are connected by threads. The metal section and plastic section are connected by threads, and the rack 9 in the metal section meshes with the gear 8. After the rack 9 wears out, only the metal section needs to be removed and replaced.

[0029] like Figure 1 and Figure 4 As shown, to achieve stable installation of the airbag 6, an inverted bucket-shaped mounting sleeve 4 is connected to the bottom of the top tube 2, and the airbag 6 is fixed to the inner bottom of the mounting sleeve 4. The structure of the mounting sleeve 4 can cover the airbag 6, ensuring that the airbag 6 is located at the inner bottom of the mounting sleeve 4 and preventing the airbag 6 from separating from the mounting sleeve 4; moreover, the mounting sleeve 4 can protect the top of the airbag 6, and when the airbag 6 pushes against the inner top of the mounting sleeve 4, the force is applied more evenly.

[0030] In a preferred embodiment of this utility model, to increase the coverage area of ​​the airbag 6, an annular sleeve is coaxially fixedly connected to the bottom of the mounting sleeve 4, and the annular sleeve covers the middle part of the airbag 6, with the edge of the airbag 6 fitting against the inner wall of the annular sleeve.

[0031] like Figure 1 As shown, to ensure the stability of the jacking pipe 2 in the vertical direction, guide blocks 5 are fixed on the inner wall of the sewage well 1. The jacking pipe 2 is vertically slidably connected to the guide blocks 5, and the guide blocks 5 are equidistantly distributed in the vertical direction. Three guide blocks 5 are installed on the inner wall of the sewage well 1, and the three guide blocks 5 are respectively connected to the top, middle, and bottom of the jacking pipe 2 to ensure that the jacking pipe 2 can move stably in the vertical direction.

[0032] like Figure 1 As shown, to limit the lifting height of the jacking pipe 2 and prevent the rack 9 from separating from the gear 8, a limiting plate 10 is fixedly installed on the jacking pipe 2. The limiting plate 10 is correspondingly arranged with the guide block 5, which is located between a pair of limiting plates 10. The outer diameter of the limiting plate 10 is larger than the inner diameter of the guide block 5, and the distance between the two limiting plates does not exceed the length of the rack 9. Through the cooperation of the two limiting plates 10 and the guide block 5, during the operation of the jacking pipe 2, when the top limiting plate 10 contacts the guide block 5, the top end of the rack 9 meshes with the gear 8; when the bottom limiting plate 10 contacts the guide block 5, the bottom end of the rack 9 meshes with the gear 8.

[0033] As a preferred embodiment of this utility model, the plastic section of the jacking pipe 2 is a high-density polyethylene pipe. High-density polyethylene pipe has the advantages of high strength, lightweight and corrosion resistance, which can meet the requirements of long-term use under the sewage well 1, and the airbag 6 can easily lift the jacking pipe 2.

Claims

1. An automatic ventilation device for sewage wells, characterized in that: It includes a jacking pipe (2) that is vertically slidably arranged directly below the manhole cover (3) of the sewage well (1), with an airbag (6) connected to the bottom of the jacking pipe (2), and a gas exchange structure that rotates when the manhole cover (3) is jacked up.

2. The automatic air vent for a sewage well according to claim 1, characterized in that: The gas exchange structure includes a receiving groove opened on the well cover (3), and a ventilation plate (7) is horizontally rotatably arranged in the receiving groove. The jacking pipe (2) is located on one side of the ventilation plate (7), and a transmission structure is provided between the jacking pipe (2) and the ventilation plate (7).

3. The automatic ventilation device for sewage wells as described in claim 2, characterized in that: The transmission structure includes a gear (8) fixed on the mounting shaft of the ventilation plate (7) and a rack (9) fixed parallel to the top pipe (2), with the rack (9) meshing with the gear (8).

4. The automatic sewer vent device of claim 3, wherein: A gap is provided between the receiving groove and the ventilation plate (7), and an adapter groove for accommodating the top pipe (2) and the transmission structure is provided on one side of the receiving groove.

5. The automatic sewer vent device of claim 3, wherein: The top pipe (2) includes a metal section at the top and a plastic section at the bottom. The side wall of the metal section has a groove. The rack is welded to the metal section. The metal section and the plastic section are connected by threads.

6. The automatic sewer vent device of claim 5, wherein: The plastic section of the jacking pipe (2) is a high-density polyethylene pipe.

7. The automatic ventilation device for sewage wells as described in claim 3, characterized in that: A guide block (5) is fixed on the inner wall of the sewage well (1), and the jacking pipe (2) is vertically slidably connected to the guide block (5). The guide blocks (5) are equidistantly distributed in the vertical direction.

8. The automatic ventilation device for sewage wells as described in claim 7, characterized in that: Limiting plates (10) are fixedly installed on the top pipe (2). The limiting plates (10) are correspondingly arranged with the guide block (5). The guide block (5) is located between a pair of limiting plates (10). The outer diameter of the limiting plate (10) is greater than the inner diameter of the guide block (5), and the distance between the same pair of limiting plates does not exceed the length of the rack (9).

9. The automatic ventilation device for sewage wells as described in claim 1, characterized in that: The bottom of the top pipe (2) is connected to an inverted bucket-shaped mounting sleeve (4), and the airbag (6) is fixed to the inner bottom of the mounting sleeve (4).

10. The automatic ventilation device for sewage wells as described in claim 9, characterized in that: The bottom of the mounting sleeve (4) is coaxially fixedly connected to an annular sleeve, and the annular sleeve covers the middle part of the airbag (6), with the edge of the airbag (6) fitting against the inner wall of the annular sleeve.

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