Anti-blocking self-cleaning exhaust valve

Abstract

The utility model relates to the technical field of exhaust valves, in particular to an anti-blocking self-cleaning exhaust valve which comprises an exhaust valve body, a valve cover is arranged at the upper end of the exhaust valve body, a coarse filter screen, a fine filter screen and an activated carbon filter plate are transversely arranged in an inner cavity of the valve cover from top to bottom, and a rotating shaft is rotationally arranged on the valve cover. The rotating shaft sequentially penetrates through and is rotationally connected with the coarse filter screen and the fine filter screen, a cleaning roller is arranged on the outer side of the part, arranged in the inner cavity of the valve cover, of the rotating shaft, the cleaning roller is attached to the lower end face of the coarse filter screen and the upper end face of the fine filter screen, impurity accumulation is reduced through graded filtration of the coarse filter screen and the fine filter screen, and impurities on the coarse filter screen and the fine filter screen are brushed away through the cleaning roller; the activated carbon filter plate improves the gas cleanliness and is suitable for scenes with high exhaust quality requirements, the three-layer filter structure is integrally mounted in the valve cover, synchronous cleaning of the cleaning roller on the two layers of filter screens is achieved through the rotating shaft penetrating design, and the structure is simplified.

Description

Technical Field

[0001] This utility model relates to the field of exhaust valve technology, specifically to an anti-clogging self-cleaning exhaust valve. Background Technology

[0002] Air vents are used for venting pipes in independent heating systems, centralized heating systems, heating boilers, central air conditioning, underfloor heating, and solar heating systems. After prolonged use, a certain amount of dirt will accumulate inside the air vent, which can also breed bacteria. The internal structure of a typical air vent is fixed and difficult to disassemble and clean. The accumulation of impurities over a long period of time will greatly reduce the service life and venting quality of the air vent.

[0003] The utility model patent with authorization announcement number CN215258116U discloses an easy-to-clean exhaust valve. This solution involves rotating the inner wall of the exhaust valve housing for cleaning, facilitating comprehensive cleaning of the inner wall. The combination of the exhaust pipe, T-shaped limiting ring, lower limiting ring, and fastening ring allows for individual cleaning of each component, effectively increasing cleaning quality and extending the device's lifespan and exhaust quality to some extent. However, the following shortcomings remain: the filter structure consists only of a filter plate and a sealing ring, offering limited filtration of fine particulate impurities. This may allow some fine impurities to enter the exhaust valve, affecting the normal operation of internal components, or, with increasing usage time, impurities may clog the filter plate, gradually affecting the exhaust performance. Therefore, improvements are necessary. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an anti-clogging self-cleaning exhaust valve to solve the above problems.

[0005] The purpose of this utility model is achieved as follows: an anti-clogging self-cleaning exhaust valve includes an exhaust valve body, a valve cover at the upper end of the exhaust valve body, a coarse filter screen, a fine filter screen and an activated carbon filter plate arranged horizontally from top to bottom in the inner cavity of the valve cover, a rotating shaft rotatably mounted on the valve cover, the rotating shaft sequentially passing through and rotatably connecting the coarse filter screen and the fine filter screen, a cleaning roller is provided on the outer side of the inner cavity of the valve cover where the rotating shaft is located, the cleaning roller is in contact with the lower end face of the coarse filter screen and the upper end face of the fine filter screen.

[0006] Preferably, the rotating shaft is provided with a bent pipe on the outer side outside the valve cover, the bent pipe is connected to the rotating shaft, and the rotating shaft is provided with a vent hole.

[0007] Preferably, the exhaust valve body and valve cover are installed by means of a flange and a locating pin.

[0008] Preferably, the bristles on the cleaning roller are distributed in a manner that combines different lengths and softness.

[0009] Preferably, the bottom of the exhaust valve body is provided with a mounting base.

[0010] Preferably, the activated carbon filter plate is located at the bottom of the valve cover.

[0011] This utility model has the following beneficial effects:

[0012] 1. This anti-clogging self-cleaning exhaust valve allows gas to pass through a coarse filter to intercept larger particles, followed by a fine filter to filter smaller particles, and finally an activated carbon filter to adsorb odors and harmful gases, achieving three-stage purification. Operators can rotate the shaft to drive a cleaning roller to rotate synchronously around the shaft. The brush bristles of the cleaning roller contact the lower end of the coarse filter and the upper end of the fine filter, brushing away impurities from both. This staged filtration through coarse and fine filters reduces impurity accumulation. The cleaning roller removes impurities from the coarse and fine filters, preventing filter clogging and ensuring efficient exhaust. The activated carbon filter further enhances gas cleanliness. Suitable for applications with high exhaust quality requirements (such as heating and air conditioning systems), this valve features a three-layer filtration structure integrated within the valve cover. The through-shaft design allows the cleaning roller to clean two filter layers simultaneously, simplifying the structure.

[0013] 2. A bent pipe is provided on the outer side of the rotating shaft outside the valve cover. The bent pipe is connected to the rotating shaft. The rotating shaft is provided with a vent hole. When exhausting, some gas can enter the valve cover through the bent pipe and the vent hole of the rotating shaft. At this time, it is preferable to design the rotating shaft as a driven rotating connection, that is, the rotating shaft assists in driving the cleaning roller to rotate, forming an airflow back jet, which enhances the self-cleaning effect.

[0014] 3. The bristles on the cleaning roller are distributed in a combination of different lengths and soft and hard bristles. For example, long bristles contact the lower end of the coarse filter screen, penetrate deep into the gaps between the mesh holes, and remove larger particles of impurities, achieving layered cleaning of "large particle removal + small particle sweeping" to improve cleaning efficiency. Short bristles adhere to the upper end of the fine filter screen to handle small particles. The combination of soft and hard bristles removes stubborn stains, while soft bristles avoid scratching the filter screen and protect the filter screen structure. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is the front view of the present invention;

[0018] Figure 3 This is a top view of the present invention;

[0019] Figure 4 This is a schematic diagram of the internal structure of the valve cover of this utility model;

[0020] The labels in the attached diagram are:

[0021] 1. Exhaust valve body; 2. Valve cover; 3. Coarse filter screen; 4. Fine filter screen; 5. Activated carbon filter plate; 6. Rotary shaft; 7. Cleaning roller; 8. Bend; 9. Vent hole; 10. Flange; 11. Locating pin; 12. Mounting base. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the technical solutions in the specific embodiments of this utility model are clearly and completely described below to further illustrate this utility model. Obviously, the specific embodiments described are only a part of the embodiments of this utility model, and not all of them.

[0023] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0024] Example 1:

[0025] A self-cleaning, anti-clogging exhaust valve includes an exhaust valve body 1. The upper end of the exhaust valve body 1 is provided with a valve cover 2. The inner cavity of the valve cover 2 is horizontally arranged from top to bottom with a coarse filter screen 3, a fine filter screen 4, and an activated carbon filter plate 5. A rotating shaft 6 is rotatably arranged on the valve cover 2. The rotating shaft 6 passes through and rotatably connects the coarse filter screen 3 and the fine filter screen 4 in sequence. A cleaning roller 7 is provided on the outer side of the inner cavity of the valve cover 2. The cleaning roller 7 is attached to the lower end face of the coarse filter screen 3 and the upper end face of the fine filter screen 4.

[0026] After the gas enters the valve cover 2, it first passes through the coarse filter 3 to intercept larger particles of impurities, then passes through the fine filter 4 to filter out tiny particles, and finally the activated carbon filter plate 5 adsorbs odors and harmful gases, achieving three-stage purification. In addition, the staff can rotate the rotating shaft 6 to drive the cleaning roller 7 to rotate synchronously around the shaft. The bristles of the cleaning roller 7 contact the lower end of the coarse filter 3 and the upper end of the fine filter 4 respectively, brushing away the impurities on the coarse filter 3 and the fine filter 4.

[0027] The system uses a coarse filter 3 and a fine filter 4 for tiered filtration to reduce impurity buildup. A cleaning roller 7 removes impurities from the coarse filter 3 and the fine filter 4, preventing filter clogging from affecting exhaust efficiency. An activated carbon filter plate 5 improves gas cleanliness, making it suitable for scenarios with high exhaust quality requirements (such as heating and air conditioning systems). The three-layer filtration structure is integrated into the valve cover 2, and the through-shaft design of the rotating shaft 6 enables the cleaning roller 7 to clean the two filter layers simultaneously, simplifying the structure.

[0028] In this embodiment, the rotating shaft 6 is provided with a bent pipe 8 on the outside of the valve cover 2. The bent pipe 8 is connected to the rotating shaft 6. The rotating shaft 6 is provided with a vent hole 9. When exhausting, some gas can enter the valve cover 2 through the bent pipe 8 and the vent hole 9 of the rotating shaft 6. At this time, it is preferable to design the rotating shaft 6 as a driven rotating connection, that is, the rotating shaft 6 assists in driving the cleaning roller 7 to rotate, forming an airflow back jet, which enhances the self-cleaning effect.

[0029] In this embodiment, the exhaust valve body 1 and the valve cover 2 are installed by a flange 10 and a positioning pin 11. The flange 10 connection method facilitates quick disassembly of the valve cover 2. The exhaust valve body 1 and the valve cover 2 can be separated without tools. At the same time, a sealing gasket can be preferably added to the mating surface of the flange 10 to prevent gas leakage and improve structural stability.

[0030] In this embodiment, the bristles on the cleaning roller 7 are distributed in a combination of different lengths and soft / hard bristles. For example, long bristles contact the lower surface of the coarse filter screen 3, penetrating deep into the mesh gaps to remove larger particles and impurities, achieving layered cleaning of "large particle removal + micro-particle sweeping" to improve cleaning efficiency. Short bristles adhere to the upper surface of the fine filter screen 4 to handle micro-particles. The combination of soft and hard bristles allows the hard bristles to remove stubborn stains while the soft bristles prevent scratching the filter screen and protect its structure. It should be noted that... Figure 4 The cleaning roller 7 is for illustrative purposes only and does not represent the actual distribution and arrangement of the bristles.

[0031] In this embodiment, a mounting base 12 is installed at the bottom of the exhaust valve body 1, which can be fixed to the pipe, equipment surface or bracket, etc., to ensure stable installation of the exhaust valve.

[0032] In this embodiment, the activated carbon filter plate 5 is located at the bottom of the valve cover 2. After the gas is filtered through the coarse filter screen 3 and the fine filter screen 4, it finally passes through the activated carbon filter plate 5. The porous structure of the activated carbon adsorbs odor molecules in the gas, thereby achieving gas purification.

[0033] The working principle of this utility model is as follows: This anti-clogging self-cleaning exhaust valve allows gas to enter the valve cover 2. First, it passes through a coarse filter 3 to intercept larger particles, then through a fine filter 4 to filter smaller particles, and finally, an activated carbon filter plate 5 adsorbs odors and harmful gases, achieving three-stage purification. Operators rotate the shaft 6, causing the cleaning roller 7 to rotate synchronously around the shaft. The bristles of the cleaning roller 7 contact the lower end of the coarse filter 3 and the upper end of the fine filter 4, brushing away impurities from both filters. The staged filtration through the coarse and fine filters reduces impurity accumulation; the cleaning roller 7 removes impurities from both filters, preventing clogging and ensuring efficient exhaust; and the activated carbon filter plate 5 improves gas cleanliness. This design is suitable for scenarios with high exhaust quality requirements (such as heating and air conditioning systems). The three-layer filtration structure is integrated within the valve cover 2, and the through-type design of the shaft 6 allows the cleaning roller 7 to clean both layers of filters simultaneously, simplifying the structure. The rotating shaft 6 is located on the outside of the valve cover 2 and has a bent pipe 8. The bent pipe 8 is connected to the rotating shaft 6. The rotating shaft 6 has a vent hole 9. When exhausting, some gas can enter the valve cover 2 through the bent pipe 8 and the vent hole 9 of the rotating shaft 6. At this time, it is preferable to design the rotating shaft 6 as a driven rotating connection, that is, the rotating shaft 6 assists in driving the cleaning roller 7 to rotate, forming an airflow back jet, which enhances the self-cleaning effect.

[0034] It should be noted that, depending on the implementation needs, the various components described in the embodiments of this utility model can be divided into more components, or two or more components or parts of components can be combined into new components to achieve the purpose of the embodiments of this utility model. The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A clog-resistant self-cleaning vent valve comprising a vent valve body (1), characterized in that: The upper end of the exhaust valve body (1) is provided with a valve cover (2), the inner cavity of the valve cover (2) is provided with a coarse filter screen (3), a fine filter screen (4) and an activated carbon filter plate (5) from top to bottom, a rotating shaft (6) is rotatably arranged on the valve cover (2), the rotating shaft (6) penetrates and rotatably connects the coarse filter screen (3) and the fine filter screen (4) in sequence, a cleaning roller (7) is arranged outside the part of the inner cavity of the valve cover (2) where the rotating shaft (6) is located, and the cleaning roller (7) is attached to the lower end surface of the coarse filter screen (3) and the upper end surface of the fine filter screen (4).

2. The anti-clogging self-cleaning vent valve of claim 1, wherein: The rotating shaft (6) is provided with an elbow pipe (8) outside the part of the valve cover (2) where the rotating shaft (6) is located, the elbow pipe (8) is arranged in communication with the rotating shaft (6), and the rotating shaft (6) is provided with a ventilation hole (9).

3. The anti-clogging self-cleaning vent valve of claim 1, wherein: The exhaust valve body (1) and the valve cover (2) are cooperatively installed through a flange plate (10) and a positioning pin (11).

4. The anti-clogging self-cleaning vent valve of claim 1, wherein: The bristles on the cleaning roller (7) are distributed in different lengths and in a combination of softness and hardness.

5. The anti-clogging self-cleaning vent valve of claim 1, wherein: The bottom of the exhaust valve body (1) is provided with a mounting seat (12).

6. The anti-clogging self-cleaning vent valve of claim 1, wherein: The activated carbon filter plate (5) is located at the bottom of the valve cover (2).

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