A vent well cover

Abstract

The utility model provides a kind of exhaust well lid belongs to well lid technical field, to solve the exhaust well lid of current most only has basic exhaust function, lack of effective design to prevent fire source from entering sewer interior and to monitor gas concentration early warning, it is difficult to eliminate the above-mentioned safety hazard from root, including: annular pedestal and the cover body being set in pedestal middle part, the cover body is provided with exhaust hole, the valve is communicated with in exhaust hole bottom, the valve other end is communicated with gas pump, the adjustable exhaust pipe is communicated with in gas pump other end, the adjustable exhaust pipe extends to cover body bottom.

Description

Technical Field

[0001] This utility model belongs to the field of manhole cover technology, and more specifically, it relates to an exhaust manhole cover. Background Technology

[0002] Currently, during the daily operation of urban sewer systems, the fermentation of sewage and garbage, as well as chemical reactions within the pipes, continuously produce toxic, harmful, and flammable gases such as hydrogen sulfide and methane. If these gases cannot be discharged in a timely manner, they will not only accumulate in the sewers but also slowly diffuse into the surrounding environment through gaps in manhole covers, posing a serious threat to the health and lives of passersby. Long-term inhalation of low concentrations of toxic gases may cause respiratory diseases, nervous system damage, and other problems. Even more dangerously, when exposed to open flames or high temperatures, these flammable gases can easily ignite and cause explosions.

[0003] However, most existing exhaust manhole covers only have basic exhaust functions and lack effective designs to prevent fire sources from entering the sewer and to monitor and warn of gas concentration. They are difficult to eliminate the above-mentioned safety hazards at the root and urgently need to be developed to solve such problems.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings to provide a ventilation manhole cover with greater practical value. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides an exhaust manhole cover that solves the problem that most existing exhaust manhole covers only have basic exhaust functions and lack effective designs to prevent fire sources from entering the sewer and to monitor and warn of gas concentration, making it difficult to eliminate the aforementioned safety hazards at their source.

[0006] The purpose and function of this utility model's exhaust manhole cover are achieved through the following specific technical means:

[0007] A manhole cover, comprising:

[0008] The annular base and the cover located in the middle of the base, the cover having an exhaust hole, the bottom of the exhaust hole being connected to a valve, the other end of the valve being connected to an air pump, the other end of the air pump being connected to an adjustable exhaust pipe, the adjustable exhaust pipe extending to the bottom of the cover.

[0009] Furthermore, the adjustable exhaust pipe includes a first straight pipe connected to an air pump at one end, a second straight pipe slidably sleeved with the first straight pipe, and a float fixedly connected to the lower part of the second straight pipe. The second straight pipe is provided with at least one air extraction hole.

[0010] Furthermore, the adjustable exhaust pipe includes a hose connected to an air pump at one end, a float body two fixedly connected to the lower part of the hose, and an air extraction pipe fixedly connected to the float body two. One end of the air extraction pipe is connected to the hose, and the other end of the air extraction pipe extends to the upper part of the float body two.

[0011] Furthermore, the valve includes a T-shaped tee pipe, a telescopic motor, and a plug. The T-shaped tee pipe includes a vertical pipe section and a horizontal pipe section communicating with the side of the vertical pipe section. The plug is fitted inside the vertical pipe section. The telescopic motor is connected to the plug. The telescopic motor can drive the plug to move up and down to open and close the horizontal pipe section.

[0012] Furthermore, a bracket is fixedly connected to the bottom of the cover, and the cover body is fixedly connected to the bracket. The telescopic motor is located inside the cover body.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention utilizes an exhaust mechanism installed on the manhole cover to expel harmful gases from the bottom of the cover, thereby reducing the concentration of harmful gases inside and preventing serious consequences caused by excessively high concentrations. In this embodiment, the air pump is activated, drawing gas from the bottom of the regulating exhaust pipe and discharging it through the exhaust hole, effectively removing harmful gases from the bottom of the manhole cover and preventing their accumulation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the exhaust manhole cover of this utility model.

[0016] Figure 2 This is an exploded structural diagram of an embodiment of an exhaust manhole cover according to the present invention.

[0017] Figure 3 This is a three-dimensional structural schematic diagram of a second embodiment of the exhaust manhole cover of this utility model.

[0018] Figure 4 This is an exploded structural diagram of a second embodiment of the exhaust manhole cover of this utility model.

[0019] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0020] Base 11, cover 12, vent 120, adjustable vent pipe 13, air extraction vent 130, first straight pipe 131, second straight pipe 132, float 133, float 2 133', hose 134, air extraction pipe 135, air pump 14, valve 15, T-shaped tee 151, vertical pipe section 1510, horizontal pipe section 1512, telescopic motor 152, plug 153, cover 16, bracket 17, pry hole 18. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1

[0025] As attached Figure 1 To be continued Figure 4 As shown:

[0026] This utility model provides an exhaust manhole cover, comprising:

[0027] The annular base 11 and the cover 12 disposed in the middle of the base 11 are provided. The cover 12 is provided with an exhaust hole 120. The bottom of the exhaust hole 120 is connected to a valve 15. The other end of the valve 15 is connected to an air pump 14. The other end of the air pump 14 is connected to an adjustable exhaust pipe 13. The adjustable exhaust pipe 13 extends to the bottom of the cover 12.

[0028] In this embodiment, the air pump 14 is started, and the air pump 14 draws out the gas at the bottom of the regulating exhaust pipe 13 and discharges it from the exhaust hole 120, thereby venting the harmful gas at the bottom of the manhole cover and effectively preventing the accumulation of harmful gas at the bottom of the manhole cover.

[0029] The adjustable exhaust pipe 13 includes a first straight pipe 131 connected to an air pump 14 at one end, a second straight pipe 132 slidably sleeved with the first straight pipe 131, and a float 133 fixedly connected to the lower part of the second straight pipe 132. The second straight pipe 132 is provided with at least one air extraction hole 130.

[0030] The first straight pipe 131 and the second straight pipe 132 are slidably sleeved together. When the water level at the bottom of the manhole cover rises, the float 133 moves upward, which in turn drives the second straight pipe 132 to move upward, thereby adjusting the position of the air extraction hole 130. This ensures that the air extraction hole 130 always maintains a certain distance from the water surface to prevent water pumping, and also ensures that the air extraction position is always located at a lower position below the manhole cover to achieve a better air extraction effect.

[0031] The valve 15 includes a T-shaped tee pipe 151, a telescopic motor 152, and a plug 153. The T-shaped tee pipe 151 includes a vertical pipe section 1510 and a horizontal pipe section 1512 communicating with the side of the vertical pipe section 1510. The plug 153 is fitted inside the vertical pipe section 1510. The telescopic motor 152 is connected to the plug 153 and can drive the plug 153 to move up and down to open and close the horizontal pipe section 1512. The horizontal pipe section 1512 and the vertical pipe section 1510 form a ventilation channel. When the plug 153 moves down to the lower part of the vertical pipe section 1510, the vertical pipe section 1510 and the horizontal pipe section 1512 are fully connected to open the valve 15. When the plug 153 moves up to the upper part of the horizontal pipe section 1512, the vertical pipe section 1510 and the horizontal pipe section 1512 are completely disconnected to close the valve.

[0032] A bracket 17 is fixedly connected to the bottom of the cover 12, and a cover 16 is fixedly connected to the bracket 17. The telescopic motor 152 is disposed inside the cover 16. The cover 16 protects the telescopic motor 152 by enclosing it, preventing damage from corrosive gases inside the well.

[0033] In practice, the top of the cover 12 is provided with a pry hole 18 for prying it up.

[0034] Example 2

[0035] The remaining features are the same as in Embodiment 1, except that the adjustable exhaust pipe 13 in this embodiment includes a flexible hose 134 connected to the air pump 14 at one end, a float 133' fixedly connected to the lower part of the flexible hose 134, and an air extraction pipe 135 fixedly connected to the float 133'. One end of the air extraction pipe 135 is connected to the flexible hose 134, and the other end of the air extraction pipe 135 extends to the upper part of the float 133'. The flexible hose 134 can adapt to the harsh environment of the well, the float 133' can float up and down with the water level, and the flexible hose 134 can change position accordingly.

[0036] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A ventilation manhole cover, characterized in that, include: The ring-shaped base (11) and the cover (12) located in the middle of the base (11) are provided with an exhaust hole (120). The bottom of the exhaust hole (120) is connected to a valve (15). The other end of the valve (15) is connected to an air pump (14). The other end of the air pump (14) is connected to an adjustable exhaust pipe (13). The adjustable exhaust pipe (13) extends to the bottom of the cover (12).

2. The exhaust manhole cover as described in claim 1, characterized in that: The adjustable exhaust pipe (13) includes a first straight pipe (131) connected to an air pump (14) at one end, a second straight pipe (132) slidably sleeved with the first straight pipe (131), and a float (133) fixedly connected to the lower part of the second straight pipe (132). The second straight pipe (132) is provided with at least one air extraction hole (130).

3. The exhaust manhole cover as described in claim 1, characterized in that: The adjustable exhaust pipe (13) includes a hose (134) connected to an air pump (14) at one end, a float (133') fixedly connected to the lower part of the hose (134), and an air extraction pipe (135) fixedly connected to the float (133'). One end of the air extraction pipe (135) is connected to the hose (134), and the other end of the air extraction pipe (135) extends to the upper part of the float (133').

4. A ventilation manhole cover as described in claim 1, characterized in that: The valve (15) includes a T-shaped tee pipe (151), a telescopic motor (152), and a plug (153). The T-shaped tee pipe (151) includes a vertical pipe section (1510) and a horizontal pipe section (1512) connected to the side of the vertical pipe section (1510). The plug (153) is fitted inside the vertical pipe section (1510). The telescopic motor (152) is connected to the plug (153). The telescopic motor (152) can drive the plug (153) to move up and down to open and close the horizontal pipe section (1512).

5. A ventilation manhole cover as described in claim 4, characterized in that: The bottom of the cover (12) is fixedly connected to a bracket (17), and the cover (16) is fixedly connected to the bracket (17). The telescopic motor (152) is located inside the cover (16).

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