Exhaust device of fermentation bin

Abstract

The utility model relates to the technical field of human excrement treatment equipment, in particular to an exhaust device of a fermentation bin, which comprises a fermentation bin cover, the fermentation bin cover comprises an exhaust port, and the exhaust device further comprises an exhaust fan arranged in the exhaust port; the filter screen is arranged in the exhaust port and located on the air inlet side of the exhaust fan, so that waste impurities in the fermentation bin are prevented from directly entering the exhaust fan in the exhaust process, and the service life of the exhaust fan is effectively prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of human feces processing equipment, and in particular to an exhaust device for a fermentation bin. Background Art

[0002] As an environmentally friendly sanitation facility, the design and use of green toilets fully embody the requirements of the green development concept. They are being vigorously promoted in an increasing number of regions, especially in certain scenic areas and rural areas. Green toilets typically use water-saving or waterless flushing methods and treat excreta through microbial fermentation and degradation technology. The process of microorganisms breaking down organic matter into stable substances such as humus not only reduces the volume and odor of excreta, but also converts it into valuable organic fertilizer. For example, excreta after microbial fermentation is rich in nutrients and organic matter required by plants, making it a high-quality organic fertilizer. The biogas produced by anaerobic fermentation is a clean energy source that can be used for power generation, lighting, and fuel. The fermentation process usually requires stirring to ensure that the microorganisms and excreta are evenly mixed, thereby improving the efficiency of microbial degradation. Therefore, the green treatment of excreta is based on multiple considerations, including environmental protection, resource recovery, public health, socioeconomic benefits, and sustainable development, and aims to contribute to the sustainable development of mankind.

[0003] The prior art (for example, announcement number CN221635631U, invention name: A dry toilet with a fermentation tank body protective structure) discloses a dry toilet, which uses an exhaust fan to suck out the odor generated during the fermentation process from the connecting pipe and discharge it from the exhaust duct, thereby achieving the effect of keeping the air inside the toilet fresh. However, in the prior art, since the exhaust fan is directly connected to the connecting pipe of the fermentation tank body, when the airflow generated by the exhaust fan draws the odor from the fermentation tank body to the outside of the fermentation tank body, the processed waste impurities in the fermentation tank body will directly enter the exhaust fan with the flow of the airflow, which will cause damage to the exhaust fan during long-term use. Utility Model Content

[0004] In view of this, the purpose of this application is to provide an exhaust device for a fermentation bin so as to achieve the technical effect of increasing the service life of the exhaust fan.

[0005] In a first aspect, an embodiment of the present application discloses an exhaust device for a fermentation bin, comprising a fermentation bin cover, the fermentation bin cover including an exhaust port, and the exhaust device further comprising:

[0006] an exhaust fan, the exhaust fan being arranged in the exhaust port;

[0007] A filter screen is arranged in the exhaust port, and the filter screen is located on the air inlet side of the exhaust fan.

[0008] In one embodiment, the exhaust device further includes an exhaust cover, one side of the exhaust cover is rotatably connected to the exhaust port, and the other side of the exhaust cover is detachably connected to the exhaust port.

[0009] In one embodiment, the exhaust cover has a hinge, and the exhaust cover is rotatably connected to the exhaust port via the hinge.

[0010] In one embodiment, the exhaust cover has a rotating shaft, and the exhaust cover is rotatably connected to the exhaust port via the rotating shaft.

[0011] In one embodiment, the exhaust cover has a buckle, and the exhaust port has a slot, and the exhaust cover is detachably connected to the exhaust port through the cooperation of the buckle and the slot.

[0012] In one embodiment, the exhaust cover has a latch rod, and the exhaust port has a latch hole, and the exhaust cover is detachably connected to the exhaust port through the cooperation of the latch rod and the latch hole.

[0013] In one embodiment, the shape of the exhaust fan matches the shape of the exhaust port, and the size of the exhaust fan matches the size of the exhaust port.

[0014] In one embodiment, the filter screen includes a filter screen plate, the shape of the filter screen plate matches the shape of the exhaust port, and the size of the filter screen plate matches the size of the exhaust port.

[0015] In one embodiment, the exhaust device further includes an exhaust duct, which is provided on the exhaust cover and communicates with the exhaust port.

[0016] The present application sets an exhaust device consisting of an exhaust fan and a filter in the exhaust port of the fermentation bin cover, and limits the position of the filter to the air inlet side of the exhaust fan. In this way, the airflow generated in the process of the exhaust fan pumping air into the fermentation bin flows in the direction of the fermentation bin, the air inlet side of the exhaust fan, the filter, the exhaust fan, and the air outlet side of the exhaust fan, and is discharged outside the fermentation bin. Due to the setting of the filter, the gas flowing into the exhaust fan can be filtered, and the waste impurities in the gas can be removed, so that the waste impurities in the fermentation bin are prevented from directly entering the exhaust fan during the exhaust process, thereby effectively improving the service life of the exhaust fan and preventing the exhaust duct from being blocked (if a large amount of dust-containing gas circulates in the duct for a long time, the dust will adhere to the inner wall of the duct, accumulate more and more, and finally completely block the duct). BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic structural diagram from a first perspective of an exhaust device for a fermentation bin disclosed in a first embodiment of the present application;

[0019] Figure 2 This is a schematic structural diagram of the exhaust device of the fermentation bin disclosed in the first embodiment of the present application from a second perspective;

[0020] Figure 3 This is a schematic structural diagram of the exhaust device of the fermentation bin disclosed in the first embodiment of the present application from a third perspective;

[0021] Figure 4 This is a schematic structural diagram of the exhaust device of the fermentation bin disclosed in the first embodiment of the present application from a fourth perspective;

[0022] Reference numerals:

[0023] 1-fermentation chamber cover, 11-exhaust port, 111-first raised portion, 112-second raised portion;

[0024] 21-exhaust fan, 22-filter screen, 23-slot, 24-clip, 25-exhaust cover, 26-exhaust duct, 27-hinge. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0026] In this utility model, the directions or positions indicated by terms such as "upper," "lower," and "outer" are based on the directions or positions shown in the accompanying drawings. These terms are primarily intended to better describe the utility model and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific direction, or to being constructed or operated in a specific direction.

[0027] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0028] Furthermore, the terms "installed," "disposed," "equipped with," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0029] Furthermore, the terms "first," "second," etc., are primarily used to distinguish between different devices, elements, or components (which may or may not be of the same type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0030] Example 1

[0031] The inventive concept of the present application is as follows: in the prior art, since the exhaust fan is directly connected to the connecting pipe of the fermentation tank body, when the exhaust fan generates airflow to draw the odor inside the fermentation tank body out of the fermentation tank body, the waste impurities processed in the fermentation tank body will directly enter the exhaust fan along with the flow of airflow, which has the disadvantage of causing damage to the exhaust fan during long-term use. The improvement of this embodiment is to overcome the disadvantages of the prior art by arranging an exhaust device consisting of an exhaust fan and a filter in the exhaust port of the fermentation bin cover, and limiting the position of the filter to be located on the air inlet side of the exhaust fan. The specific structure is as follows:

[0032] like Figure 1-4 As shown, an exhaust device for a fermentation bin includes a fermentation bin cover 1, which includes an exhaust port 11. The exhaust device also includes an exhaust fan 21, which is arranged in the exhaust port 11; specifically, one side of the exhaust fan 21 is an air inlet side, and the other side is an air outlet side, that is, when the exhaust fan 21 is working, the air inlet side and the air outlet side are distinguished by the direction of gas flow generated, the side where the gas flows into the exhaust fan 21 is the air inlet side, and the side where the air flows out of the exhaust fan 21 is the air outlet side.

[0033] In order to ensure that the exhaust fan is stably installed in the exhaust port, preferably, at least two of the four side walls inside the exhaust port 11 are respectively provided with a first protrusion 111 for stably supporting the exhaust fan 21; at the same time, in order to further ensure that the exhaust fan is stably installed in the exhaust port, preferably, the four side walls inside the exhaust port 11 are respectively provided with a first protrusion 111 for stably supporting the exhaust fan 21.

[0034] The filter screen 22 is disposed in the exhaust port 11 and is located on the air inlet side of the exhaust fan 21 .

[0035] In order to ensure that the filter is stably installed in the exhaust port, preferably, at least two of the four side walls inside the exhaust port 11 are respectively provided with a second protrusion 112 for stably supporting the filter; at the same time, in order to further ensure that the filter is stably installed in the exhaust port, preferably, the four side walls inside the exhaust port 11 are respectively provided with a second protrusion 112 for stably supporting the filter.

[0036] In order to achieve rapid replacement of the exhaust fan and filter in the exhaust port, this embodiment further comprises an exhaust device including an exhaust cover 25, one side of the exhaust cover 25 is rotatably connected to the exhaust port 11, and the other side of the exhaust cover 25 is detachably connected to the exhaust port 11.

[0037] In this embodiment, one side of the exhaust cover 25 is rotatably connected to the exhaust port 11, and the other side of the exhaust cover 25 is detachably connected to the exhaust port 11. Through the setting of the above-mentioned connection structure, the exhaust port 11 can be quickly opened and closed, thereby facilitating the rapid replacement of the exhaust fan 21 and the filter screen 22 in the exhaust port 11.

[0038] In order to achieve the rotational connection of the exhaust cover, in this embodiment, preferably, the exhaust cover 25 has a hinge 27 , and the exhaust cover 25 is rotationally connected to the exhaust port 11 via the hinge 27 .

[0039] In this embodiment, the exhaust cover 25 and the exhaust port 11 are rotatably connected by a hinge 27, and the hinge 27 can ensure that the exhaust cover 25 rotates more stably relative to the exhaust port 11.

[0040] In order to achieve detachable connection of the exhaust cover, in this embodiment, preferably, the exhaust cover 25 has a buckle 24 and the exhaust port 11 has a slot 23 , and the exhaust cover 25 is detachably connected to the exhaust port 11 through the cooperation of the buckle 24 and the slot 23 .

[0041] In this embodiment, the exhaust cover 25 and the exhaust port 11 are detachably connected by using the slot 23 and the buckle 24. Through the quick plug-in structure of the slot 23 and the buckle 24, the exhaust cover 25 and the exhaust port 11 can be quickly opened and closed.

[0042] In order to quickly replace the exhaust fan, in this embodiment, preferably, the shape of the exhaust fan 21 matches the shape of the exhaust port 11, and the size of the exhaust fan 21 matches the size of the exhaust port 11. Specifically, the size of the exhaust fan 21 is slightly smaller than the size of the exhaust port 11, that is, the exhaust fan 21 can just be installed in the exhaust port 11.

[0043] In this embodiment, the shape and size of the exhaust fan 21 are set to match the shape and size of the exhaust port 11, thereby facilitating the installation of the exhaust fan 21 into the exhaust port or removing the exhaust fan from the exhaust port, thereby achieving rapid replacement of the exhaust fan.

[0044] In order to quickly replace the filter, in this embodiment, the filter 22 preferably includes a filter plate, the shape of the filter plate matches the shape of the exhaust port 11, and the size of the filter plate matches the size of the exhaust port 11. The specific size of the filter plate is slightly smaller than the size of the exhaust port 11, that is, the filter plate can just be installed in the exhaust port 11.

[0045] In this embodiment, the shape and size of the filter screen are respectively set to match the shape and size of the exhaust port 11, thereby facilitating installation of the filter screen into the exhaust port 11 or removal of the filter screen from the exhaust port 11, thereby achieving rapid replacement of the filter screen.

[0046] In order to efficiently guide the gas in the fermentation chamber to the outside of the fermentation chamber, the present embodiment further comprises an exhaust device including an exhaust duct 26 , which is disposed on the exhaust cover 25 and is connected to the exhaust port 11 .

[0047] In this embodiment, an exhaust duct 26 connected to the exhaust port 11 is provided. The exhaust duct 26 can limit the flow direction of the gas generated during the exhaust fan 21's suction process to the path formed by the exhaust duct 26, so that the gas can be better guided to the outside of the fermentation bin through the exhaust duct 26. Preferably, the position of the outlet end of the exhaust duct 26 is set to be higher than the position of the inlet end of the exhaust duct 26, and the inlet end of the exhaust duct 26 is also connected to a drain pipe. First, by setting the position of the outlet end of the exhaust duct 26 to be higher than the position of its inlet end, the condensed water formed in the air during the exhaust process can be easily guided to the inlet end. At the same time, by providing a drain pipe at the inlet end, the condensed water is discharged through the drain pipe, thereby preventing the condensed water from freezing and blocking the exhaust duct 26. Preferably, in order to facilitate the replacement of the exhaust duct 26, the exhaust duct 26 is detachably connected to the exhaust cover 25.

[0048] Example 2

[0049] The same parts as those in Example 1 will not be described here. The difference between Example 2 and Example 1 is as follows:

[0050] In order to achieve the rotational connection of the exhaust cover, in this embodiment, preferably, the exhaust cover 25 has a rotating shaft, and the exhaust cover 25 is rotationally connected to the exhaust port 11 via the rotating shaft.

[0051] In this embodiment, the exhaust cover 25 and the exhaust port 11 are rotatably connected by a rotating shaft, and the rotating shaft can ensure that the exhaust cover 25 rotates more stably relative to the exhaust port 11.

[0052] In order to achieve detachable connection of the exhaust cover, in this embodiment, preferably, the exhaust cover 25 has a latch rod, and the exhaust port 11 has a latch hole, and the exhaust cover 25 is detachably connected to the exhaust port 11 through the cooperation of the latch rod and the latch hole.

[0053] In this embodiment, the exhaust cover 25 and the exhaust port 11 are detachably connected by using a latch rod and a latch hole. The exhaust cover 25 and the exhaust port 11 can be quickly opened and closed through the quick plug-in structure of the latch rod and the latch hole.

[0054] The working of the utility model is as follows:

[0055] First, the fermentation bin cover 1 is installed on the fermentation bin, and then the exhaust fan 21 is started. The exhaust fan 21 extracts air from the fermentation bin, and the direction of the air flow generated is in the fermentation bin, the air inlet side of the exhaust fan 21, the filter 22, the exhaust fan 21, and the air outlet side of the exhaust fan 21 and is discharged out of the fermentation bin (such as Figure 2 As shown by the arrow in the middle, since the filter 22 is arranged at the air inlet side of the exhaust fan 21, the filter 22 can filter the gas flowing into the exhaust fan 21, and filter out the waste impurities in the gas, thereby preventing the waste impurities in the fermentation bin from directly entering the exhaust fan 21 during the exhaust process.

[0056] Each embodiment in this specification is described in a progressive manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments. The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the rights of the present application.

Claims

1. An exhaust device for a fermentation bin, comprising a fermentation bin cover (1), wherein the fermentation bin cover (1) comprises an exhaust port (11), characterized in that: The exhaust device also includes: an exhaust fan (21), the exhaust fan (21) being arranged in the exhaust port (11); A filter screen (22) is provided in the exhaust port (11), and the filter screen (22) is located on the air inlet side of the exhaust fan (21).

2. The exhaust device for a fermentation bin according to claim 1, characterized in that: The exhaust device also includes: An exhaust cover (25), one side of the exhaust cover (25) is rotatably connected to the exhaust port (11), and the other side of the exhaust cover (25) is detachably connected to the exhaust port (11).

3. The exhaust device for the fermentation bin according to claim 2, characterized in that: The exhaust cover (25) has a hinge (27), and the exhaust cover (25) is rotatably connected to the exhaust port (11) via the hinge (27).

4. The exhaust device for a fermentation bin according to claim 2, characterized in that: The exhaust cover (25) has a rotating shaft, and the exhaust cover (25) is rotatably connected to the exhaust port (11) via the rotating shaft.

5. The exhaust device for a fermentation bin according to any one of claims 2 to 4, characterized in that: The exhaust cover (25) has a buckle (24), and the exhaust port (11) has a slot (23). The exhaust cover (25) is detachably connected to the exhaust port (11) through the cooperation of the buckle (24) and the slot (23).

6. The exhaust device for a fermentation bin according to any one of claims 2 to 4, characterized in that: The exhaust cover (25) has a latch rod, and the exhaust port (11) has a latch hole. The exhaust cover (25) is detachably connected to the exhaust port (11) through the cooperation of the latch rod and the latch hole.

7. The exhaust device for a fermentation bin according to claim 1, characterized in that: The shape of the exhaust fan (21) matches the shape of the exhaust port (11), and the size of the exhaust fan (21) matches the size of the exhaust port (11).

8. The exhaust device for a fermentation bin according to claim 1, characterized in that: The filter screen (22) comprises a filter screen plate, the shape of the filter screen plate matches the shape of the exhaust port (11), and the size of the filter screen plate matches the size of the exhaust port (11).

9. The exhaust device for a fermentation bin according to claim 2, characterized in that: The exhaust device also includes: An exhaust duct (26) is provided on the exhaust cover (25), and the exhaust duct (26) is communicated with the exhaust port (11).

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