Smoke dust circulating purification structure and purification device

Abstract

The utility model relates to a smoke dust circulation purification structure and a purification device, and belongs to the field of purification devices.The smoke dust circulation purification structure comprises a first filter assembly, the first filter assembly is provided with a first air inlet and a first air outlet, the first filter assembly is provided with a first filter cavity, and the first air inlet, the first filter cavity and the first air outlet are sequentially communicated; the second filtering assembly is provided with a second air inlet and a second air outlet, the second air inlet is communicated with the first air outlet, and the second filtering assembly is provided with a second filtering cavity; the third filtering assembly is provided with a third air inlet and a third air outlet, the third air inlet is communicated with the second air outlet, and the third filtering assembly is provided with a third filtering cavity; and the fan assembly is provided with a fourth air inlet and a fourth air outlet, and the fourth air inlet is communicated with the third air outlet. According to the smoke dust circulating and purifying structure disclosed by the invention, multi-stage filtering of air is realized through the arrangement of the plurality of filtering assemblies.

Description

Technical Field

[0001] This utility model relates to the field of purification devices, and in particular to a smoke and dust circulation purification structure and purification device. Background Technology

[0002] In industry, machines such as 3D printers often generate large amounts of smoke and other particulate matter during operation. This smoke and dust is not only harmful to human health but also pollutes the environment. Traditional air purification devices often use a single filter. However, using a single filter leads to problems such as low filtration efficiency and unstable filtration effects. Furthermore, insufficient filtration area results in frequent filter replacements and high maintenance costs due to frequent equipment upkeep. Utility Model Content

[0003] Therefore, it is necessary to provide a dust circulation purification structure and purification device to address the problems of insufficient filtration area leading to frequent filter replacement and high maintenance costs due to frequent equipment maintenance when using a single filtration device.

[0004] A smoke and dust circulation purification structure includes: a first filter assembly, which has a first air inlet and a first air outlet, the first air inlet being able to communicate with an external device, and the first filter assembly having a first filter chamber, the first air inlet, the first filter chamber, and the first air outlet being sequentially connected; a second filter assembly, which has a second air inlet and a second air outlet, the second air inlet being connected to the first air outlet, the second filter assembly having a second filter chamber, and the second air inlet, the second filter chamber, and the second air outlet being sequentially connected; a third filter assembly, which has a third air inlet and a third air outlet, the third air inlet being connected to the second air outlet, the third filter assembly having a third filter chamber, and the third air inlet, the third filter chamber, and the third air outlet being sequentially connected; and a fan assembly, which has a fourth air inlet and a fourth air outlet, the fourth air inlet being connected to the third air outlet, the fourth air outlet being able to communicate with an external device, and the fan assembly being used to generate negative pressure to draw air in through the first air inlet and output it through the fourth air outlet.

[0005] The first aspect of this application discloses a smoke and dust circulation purification structure, which achieves multi-stage air filtration through the arrangement of a first filter component, a second filter component, and a third filter component. Each stage of filtration can effectively remove smoke and dust particles of different sizes from the air. For example, the first filter component uses cyclone separation to separate large dust particles from the air, the second filter component mainly filters dust, and the third filter component further refines and efficiently filters, thereby improving the overall filtration efficiency and purification effect. This design can effectively increase the filtration area, resulting in high filtration efficiency. Users do not need to replace filter elements frequently, effectively reducing maintenance costs. Moreover, the first, second, and third filter components are independent of each other, facilitating individual inspection, repair, or replacement without affecting the operation of the entire system, greatly simplifying the maintenance process. Even if one filter component fails, the other normally functioning filter components can still maintain basic purification functions, ensuring stable system operation. Since both the first filter component and the fan component are connected to external equipment such as a 3D printer, dust generated by the 3D printer can directly enter this equipment for filtration and purification, resulting in higher purification efficiency. The components of this equipment do not require bolts or other connecting parts for installation, thus improving the overall sealing performance of the machine. This design allows for better venting of oxygen from the equipment using inert gases such as nitrogen, resulting in high equipment safety. The smoke and dust circulation purification structure described in this application can effectively handle high-concentration smoke and dust environments, ensuring that the air remains at a consistently high level of purification, and is worthy of widespread adoption.

[0006] In one embodiment, the first filter assembly has a first dust outlet communicating with the first filter chamber, and the second filter assembly has a second dust outlet communicating with the second filter chamber. It also includes a first collection bucket and a second collection bucket, with the opening of the first collection bucket opposite to the first dust outlet, and the opening of the second collection bucket opposite to the second dust outlet. The first and second collection buckets can collect filtered dust particles, effectively preventing secondary pollution caused by dust particles circulating within the system and ensuring air quality. This design allows users to regularly clean the dust, greatly simplifying the cleaning and maintenance workflow.

[0007] In one embodiment, a first valve body is further included. The first valve body is disposed on the first filter assembly and / or the first collection bucket, located between the first filter assembly and the first collection bucket. The first valve body is used to control the opening or closing of the connection between the first filter assembly and the first collection bucket. The first valve body allows for quick dust removal by simply opening the first valve body when the first collection bucket needs cleaning, without disassembling other components, thus simplifying the maintenance process. Furthermore, it prevents dust from the first collection bucket from re-entering the first filter assembly and affecting its filtration efficiency.

[0008] In one embodiment, a second valve body is further included. The second valve body is disposed on the second filter assembly and / or the second collection tank, located between the second filter assembly and the second collection tank. The second valve body controls the opening or closing of the connection between the second filter assembly and the second collection tank. The second valve body allows for quick dust removal by simply opening the second valve body when the second collection tank needs cleaning, without disassembling other components, thus simplifying the maintenance process. Furthermore, it prevents dust from the second collection tank from re-entering the second filter assembly and affecting its filtration efficiency.

[0009] In one embodiment, the first air inlet is located at the top of the first filter assembly or near the top of the first filter assembly, and the first dust outlet is located at the bottom of the first filter assembly. By positioning the first air inlet at the top or near the top and the first dust outlet at the bottom, air enters from the top of the first filter assembly. Larger dust particles settle more easily inside the first filter assembly and eventually collect at the dust outlet at the bottom, facilitating centralized collection and treatment, thus improving filtration efficiency.

[0010] In one embodiment, the first filter assembly has a gradually decreasing cross-sectional area at least partially in the direction toward the first collection bin. This gradual decrease in cross-sectional area creates a funnel-shaped structure, allowing dust to flow naturally toward the first collection bin using gravity, thus reducing the dust's residence time within the first filter assembly. This design effectively prevents clogging inside the first filter assembly, maintaining the system's high efficiency.

[0011] In one embodiment, the second filter assembly has a gradually decreasing cross-sectional area at least partially in the direction toward the second collection bin. This gradual decrease in cross-sectional area creates a funnel-shaped structure, allowing dust to flow naturally toward the second collection bin using gravity, thus reducing the dust's residence time within the second filter assembly. This design effectively prevents clogging inside the second filter assembly, maintaining the system's high efficiency.

[0012] In one embodiment, the second air inlet is connected to the first air outlet via a first pipe, the third air inlet is connected to the second air outlet via a second pipe, and the fourth air inlet is connected to the third air outlet via a third pipe. The arrangement of the first, second, and third pipes allows air to flow sequentially through the first, second, and third filter components, thereby achieving a progressively finer filtration process. Furthermore, the independent pipe design effectively avoids airflow cross-contamination between different filtration stages, reducing the risk of secondary pollution.

[0013] In one embodiment, a temperature sensor is also included, which is disposed on the first filter component and / or the second filter component and / or the third filter component. The temperature sensor enables real-time monitoring of the operating temperature of each filter component, timely detection of abnormal temperature fluctuations, and prevention of equipment damage or safety hazards caused by overheating.

[0014] In one embodiment, a pressure transmitter is also included, which is disposed on the first filter assembly and / or the second filter assembly and / or the third filter assembly. The pressure transmitter enables real-time monitoring of the pressure of each filter assembly, allowing for timely detection of pressure anomalies and prevention of potential equipment malfunctions or safety hazards.

[0015] In one embodiment, the second filter assembly includes a filter cartridge, a cover, and a locking assembly. The filter cartridge has a second air inlet, a second filter chamber, and a second air outlet. The cover is disposed on the filter cartridge, and the locking assembly is disposed on the filter cartridge and / or the cover. The locking assembly can lock or unlock the cover and the filter cartridge. The locking and unlocking of the filter cartridge and the cover via the locking assembly makes the installation, disassembly, and replacement of the filter cartridge quick and easy, improving work efficiency. Furthermore, the locking assembly ensures a stable connection between the filter cartridge and the cover during operation, reducing the decrease in filtration efficiency caused by loosening or vibration.

[0016] In one embodiment, the cover is rotatable relative to the filter cartridge. This rotatability allows the operator to easily open the filter cartridge without using any tools, greatly simplifying the operation and improving work efficiency.

[0017] In one embodiment, there are multiple locking components, all disposed on the filter cartridge and spaced apart circumferentially along the filter cartridge. By having multiple locking components spaced apart circumferentially along the filter cartridge, multiple locking points are provided, ensuring that the cover is securely fixed to the filter cartridge in the closed state, preventing accidental opening due to vibration or external force.

[0018] In one embodiment, the locking assembly includes a support member and a locking member. The support member is disposed on the filter cartridge, and the locking member is disposed on the support member. The locking member is rotatable relative to the support member, and can rotate at least a first angle and a second angle relative to the support member. When the locking member rotates relative to the support member by the first angle, it locks the cover and the filter cartridge. When the locking member rotates relative to the support member by the second angle, the cover and the filter cartridge are unlocked. By allowing the locking member to rotate relative to the support member by the first and second angles to lock or unlock the cover, the locking and unlocking method between the cover and the filter cartridge is relatively simple, making operation easier and more convenient. This design makes equipment maintenance and internal cleaning easier, helping to maintain the equipment in good operating condition.

[0019] In one embodiment, the locking member includes a rotating part, a support rod part, and a locking protrusion. The rotating part is movably mounted on the support member and is capable of rotating relative to the support member at a first angle and a second angle. The support rod part is mounted on the rotating part, and the locking protrusion is mounted on the support rod part. When the rotating part rotates relative to the support member at the first angle, the locking protrusion abuts against the cover. When the rotating part rotates relative to the support member at the second angle, the locking protrusion separates from the cover. When the rotating part rotates to the first angle, the locking protrusion abuts tightly against the cover, providing a strong locking force to ensure that the cover and filter cartridge will not accidentally separate under high pressure or vibration. When the rotating part rotates to the second angle, the locking protrusion separates from the cover, achieving quick and reliable unlocking for easy subsequent operation.

[0020] In one embodiment, a gripper is further included, which is disposed on the locking member and located at the end of the locking member away from the support member. The gripper allows the operator to more easily grasp and apply force when rotating the locking member, especially when a certain amount of force needs to be applied, as the gripper provides a better support point.

[0021] A purification device includes: a housing assembly; and the aforementioned smoke and dust circulation purification structure, wherein the smoke and dust circulation purification structure is disposed on the housing assembly and is used to purify air.

[0022] The second aspect of this application discloses a purification device that, through a multi-stage filtration design of a smoke and dust circulation purification structure, can effectively remove smoke and dust particles of various sizes from the air, ensuring deep air purification. This design reduces the impact of a single filter component failure on the entire system, improving system stability and reliability. Furthermore, the smoke and dust circulation purification structure can continuously optimize air quality and enhance the overall purification effect. Attached Figure Description

[0023] Figure 1 The first three-dimensional view of the smoke and dust circulation and purification structure;

[0024] Figure 2 This is a second-dimensional view of the smoke and dust circulation and purification structure.

[0025] Figure 3 This is the first exploded view of the smoke and dust circulation and purification structure;

[0026] Figure 4 This is the second exploded view of the smoke and dust circulation and purification structure;

[0027] Figure 5 This is a 3D view of the first filter component;

[0028] Figure 6 This is a 3D view of the second filter component;

[0029] Figure 7 This is an exploded view of the second filter component;

[0030] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0031] Figure 9 A 3D view of the locking component;

[0032] Figure 10 This is a perspective view of the locking mechanism and the gripper.

[0033] The correspondence between the reference numerals and the component names is as follows:

[0034] 1 First filter assembly, 101 First air inlet, 102 First filter chamber, 103 First air outlet, 104 First dust outlet;

[0035] 2 Second filter assembly, 21 Filter cartridge, 22 Cover, 23 Locking assembly, 231 Support, 232 Locking component, 2321 Rotating part, 2322 Support rod part, 2323 Locking protrusion, 233 Handle part, 201 Second air inlet, 202 Second air outlet, 203 Second dust outlet;

[0036] 3. Third filter component; 301. Third air inlet; 302. Third air outlet;

[0037] 4. Fan assembly, 401 fourth air inlet, 402 fourth air outlet;

[0038] 5. First collection bucket;

[0039] 6. Second collection bucket;

[0040] 7. First valve body;

[0041] 8. Second valve body;

[0042] 9. Temperature sensors;

[0043] 10. Pressure transmitter. Detailed Implementation

[0044] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0045] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0046] Example 1

[0047] like Figure 1-4 As shown, this embodiment discloses a smoke and dust circulation purification structure, including: a first filter assembly 1, which has a first air inlet 101 and a first air outlet 103. The first air inlet 101 can be connected to an external device. The first filter assembly 1 has a first filter chamber 102, and the first air inlet 101, the first filter chamber 102, and the first air outlet 103 are sequentially connected; and a second filter assembly 2, which has a second air inlet 201 and a second air outlet 202. The second air inlet 201 is connected to the first air outlet 103. The second filter assembly 2 has a second filter chamber, and the second air inlet 201, the second filter chamber, and the second air outlet 103 are sequentially connected. The first air inlet 202 is connected in sequence; the third filter assembly 3 is provided with a third air inlet 301 and a third air outlet 302. The third air inlet 301 is connected to the second air outlet 202. The third filter assembly 3 is provided with a third filter chamber. The third air inlet 301, the third filter chamber and the third air outlet 302 are connected in sequence; the fan assembly 4 is provided with a fourth air inlet 401 and a fourth air outlet 402. The fourth air inlet 401 is connected to the third air outlet 302. The fourth air outlet 402 can be connected to external equipment. The fan assembly 4 is used to generate negative pressure to draw air in from the first air inlet 101 and output it from the fourth air outlet 402.

[0048] The first aspect of this application discloses a smoke and dust circulation purification structure, which achieves multi-stage air filtration through the arrangement of a first filter component 1, a second filter component 2, and a third filter component 3. Each stage of filtration can effectively remove smoke and dust particles of different sizes from the air. For example, the first filter component 1 uses cyclone separation to separate large dust particles from the air, the second filter component 2 mainly filters dust, and the third filter component 3 further refines and efficiently filters, thereby improving the overall filtration efficiency and purification effect. This design can effectively increase the filtration area, resulting in high filtration efficiency. Users do not need to replace filter elements frequently, effectively reducing maintenance costs. Moreover, the first filter component 1, the second filter component 2, and the third filter component 3 are independent of each other, facilitating individual inspection, repair, or replacement without affecting the operation of the entire system, greatly simplifying the maintenance process. Even if one filter component fails, the other normally functioning filter components can still maintain basic purification functions, ensuring the stable operation of the system. Since both the first filter component 1 and the fan component 4 are connected to external equipment such as a 3D printer, the dust generated by the 3D printer can directly enter this device for filtration and purification, resulting in higher purification efficiency. The components of this equipment do not require bolts or other connecting parts for installation, resulting in better overall sealing performance. This design allows for better venting of oxygen from the equipment using inert gases such as nitrogen, enhancing its safety. The dust circulation and purification structure described in this application can effectively handle high-concentration dust environments, ensuring that the air remains at a high level of purification, and is worthy of widespread adoption.

[0049] like Figure 5 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the first filter assembly 1 is provided with a first dust outlet 104 communicating with the first filter chamber 102, the second filter assembly 2 is provided with a second dust outlet 203 communicating with the second filter chamber, and also includes a first collection bucket 5 and a second collection bucket 6. The opening of the first collection bucket 5 is arranged opposite to the first dust outlet 104, and the opening of the second collection bucket 6 is arranged opposite to the second dust outlet 203. The arrangement of the first collection bucket 5 and the second collection bucket 6 can collect filtered dust particles, effectively preventing secondary pollution caused by dust particles circulating in the system and ensuring air quality. This design allows users to clean the dust regularly, greatly simplifying the cleaning and maintenance workflow.

[0050] like Figure 5As shown, in addition to the features of the above embodiments, this embodiment further includes a first valve body 7, which is disposed on the first filter assembly 1 and / or the first collection tank 5. The first valve body 7 is located between the first filter assembly 1 and the first collection tank 5, and is used to control the opening or closing of the connection between the first filter assembly 1 and the first collection tank 5. The first valve body 7 allows for quick dust removal by simply opening the first valve body 7 when the first collection tank 5 needs cleaning, without disassembling other components, thus simplifying the maintenance process. Furthermore, it prevents dust in the first collection tank 5 from re-entering the first filter assembly 1 and affecting its filtration efficiency.

[0051] like Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further includes a second valve body 8, which is disposed on the second filter assembly 2 and / or the second collection tank 6. The second valve body 8 is located between the second filter assembly 2 and the second collection tank 6, and is used to control the opening or closing of the connection between the second filter assembly 2 and the second collection tank 6. The second valve body 8 allows for quick dust removal by simply opening the second valve body 8 when the second collection tank 6 needs cleaning, without disassembling other components, thus simplifying the maintenance process. Furthermore, it prevents dust from the second collection tank 6 from re-entering the second filter assembly 2 and affecting its filtration efficiency.

[0052] like Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the first air inlet 101 is located at the top of the first filter assembly 1 or is disposed near the top of the first filter assembly 1, and the first dust outlet 104 is located at the bottom of the first filter assembly 1. By positioning the first air inlet 101 at the top or near the top and the first dust outlet 104 at the bottom, air enters from the top of the first filter assembly 1. Larger dust particles settle more easily inside the first filter assembly 1 and eventually collect at the dust outlet at the bottom, facilitating centralized collection and treatment, and improving filtration efficiency.

[0053] like Figure 1-5As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the cross-sectional area of ​​the first filter component 1 gradually decreases at least partially in the direction toward the first collection bucket 5. By gradually decreasing the cross-sectional area of ​​the first filter component 1 in the direction toward the first collection bucket 5, a funnel-shaped structure is formed, allowing dust to flow naturally toward the first collection bucket 5 using gravity, thus reducing the residence time of dust within the first filter component 1. This design effectively prevents clogging inside the first filter component 1 and maintains the efficient operation of the system.

[0054] like Figure 1-4 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the cross-sectional area of ​​the second filter component 2 gradually decreases at least partially in the direction toward the second collection bucket 6. By gradually decreasing the cross-sectional area of ​​the second filter component 2 in the direction toward the second collection bucket 6, a funnel-shaped structure is formed, allowing dust to flow naturally toward the second collection bucket 6 using gravity, thus reducing the residence time of dust within the second filter component 2. This design effectively prevents clogging inside the second filter component 2 and maintains the efficient operation of the system.

[0055] like Figure 1 and Figure 2 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the second air inlet 201 and the first air outlet 103 are connected by a first pipe, the third air inlet 301 and the second air outlet 202 are connected by a second pipe, and the fourth air inlet 401 and the third air outlet 302 are connected by a third pipe. The arrangement of the first, second, and third pipes allows air to flow sequentially through the first filter assembly 1, the second filter assembly 2, and the third filter assembly 3, thereby achieving a progressively refined filtration process. Furthermore, the independent pipe design effectively avoids airflow crossover between different filtration stages, reducing the risk of secondary pollution.

[0056] like Figure 1 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further includes a temperature sensor 9, which is disposed on the first filter component 1 and / or the second filter component 2 and / or the third filter component 3. The temperature sensor 9 enables real-time monitoring of the operating temperature of each filter component, timely detection of abnormal temperature fluctuations, and prevention of equipment damage or safety hazards caused by overheating.

[0057] like Figure 1 and Figure 6As shown, in addition to the features of the above embodiments, this embodiment further includes a pressure transmitter 10, which is disposed on the first filter assembly 1 and / or the second filter assembly 2 and / or the third filter assembly 3. The pressure transmitter 10 enables real-time monitoring of the pressure of each filter assembly, timely detection of pressure anomalies, and prevention of potential equipment failures or safety hazards.

[0058] like Figure 6 and Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the second filter assembly 2 includes a filter cylinder 21, a cover 22, and a locking assembly 23. The filter cylinder 21 is provided with a second air inlet 201, a second filter chamber, and a second air outlet 202. The cover 22 is disposed on the filter cylinder 21, and the locking assembly 23 is disposed on the filter cylinder 21 and / or the cover 22. The locking assembly 23 can lock or unlock the cover 22 and the filter cylinder 21. The filter cylinder 21 and the cover 22 are locked or unlocked by the locking assembly 23, making the installation, disassembly, and replacement of the filter cylinder 21 quick and easy, improving work efficiency. Moreover, the locking assembly 23 is designed to ensure a stable connection between the filter cylinder 21 and the cover 22 during operation, reducing the decrease in filtration efficiency caused by loosening or vibration.

[0059] like Figure 6 and Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the cover 22 is rotatable relative to the filter cylinder 21. Because the cover 22 can rotate relative to the filter cylinder 21, the operator can easily open the filter cylinder 21 without using any tools, greatly simplifying the operation process and improving work efficiency.

[0060] like Figure 6 and Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the number of locking components 23 is multiple, and all of the multiple locking components 23 are disposed on the filter cylinder 21, and the multiple locking components 23 are arranged at intervals along the circumference of the filter cylinder 21. By arranging multiple locking components 23 at intervals along the circumference of the filter cylinder 21, multiple locking points are provided to ensure that the cover 22 can be firmly fixed on the filter cylinder 21 in the closed state, preventing accidental opening due to vibration or external force.

[0061] like Figure 8 and Figure 9As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the locking assembly 23 includes a support member 231 and a locking member 232. The support member 231 is disposed on the filter cartridge 21, and the locking member 232 is disposed on the support member 231. The locking member 232 is rotatable relative to the support member 231. The locking member 232 is rotatable relative to the support member 231 by at least a first angle and a second angle. When the locking member 232 rotates relative to the support member 231 by the first angle, it locks the cover 22 and the filter cartridge 21. When the locking member 232 rotates relative to the support member 231 by the second angle, the cover 22 and the filter cartridge 21 are unlocked. Because the locking member 232 can rotate relative to the support member 231 by the first and second angles respectively to lock or unlock the cover 22, the locking and unlocking methods of the cover 22 and the filter cartridge 21 are relatively simple, and the operation is simpler and more convenient. This design makes the maintenance and internal cleaning of the equipment easier, helping to maintain the good operating condition of the equipment.

[0062] like Figure 10 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the locking member 232 includes a rotating part 2321, a support rod part 2322, and a locking protrusion 2323. The rotating part 2321 is movably disposed on the support member 231. The rotating part 2321 is capable of rotating relative to the support member 231 by a first angle and a second angle. The support rod part 2322 is disposed on the rotating part 2321. The locking protrusion 2323 is disposed on the support rod part 2322. When the rotating part 2321 rotates relative to the support member 231 by a first angle, the locking protrusion 2323 abuts against the cover 22. When the rotating part 2321 rotates relative to the support member 231 by a second angle, the locking protrusion 2323 separates from the cover 22. When the rotating part 2321 rotates to the first angle, the locking protrusion 2323 abuts tightly against the cover 22, providing a strong locking force to ensure that the cover 22 and the filter cartridge 21 will not accidentally separate under high pressure or vibration. When the rotating part 2321 rotates to the second angle, the locking protrusion 2323 separates from the cover 22, achieving quick and reliable unlocking and facilitating subsequent operations.

[0063] like Figure 8 and Figure 9 As shown, in addition to the features of the above embodiments, this embodiment further includes a gripper 233, which is disposed on the locking member 232 and located at the end of the locking member 232 away from the support member 231. The gripper 233 makes it easier for the operator to grip and apply force when rotating the locking member 232, especially when a certain amount of force needs to be applied, as the gripper 233 provides a better support point.

[0064] Example 2

[0065] This embodiment discloses a purification device, including: a housing assembly; and the aforementioned smoke and dust circulation purification structure, wherein the smoke and dust circulation purification structure is disposed on the housing assembly and is used to purify air.

[0066] The second aspect of this application discloses a purification device that, through a multi-stage filtration design of a smoke and dust circulation purification structure, can effectively remove smoke and dust particles of various sizes from the air, ensuring deep air purification. This design reduces the impact of a single filter component failure on the entire system, improving system stability and reliability. Furthermore, the smoke and dust circulation purification structure can continuously optimize air quality and enhance the overall purification effect.

[0067] 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 the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements 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 smoke and dust recycling and purification structure, characterized in that, include: The first filter assembly (1) is provided with a first air inlet (101) and a first air outlet (103). The first air inlet (101) can be connected to an external device. The first filter assembly (1) is provided with a first filter chamber (102). The first air inlet (101), the first filter chamber (102) and the first air outlet (103) are connected in sequence. The second filter assembly (2) is provided with a second air inlet (201) and a second air outlet (202). The second air inlet (201) is connected to the first air outlet (103). The second filter assembly (2) is provided with a second filter chamber. The second air inlet (201), the second filter chamber and the second air outlet (202) are connected in sequence. The third filter assembly (3) is provided with a third air inlet (301) and a third air outlet (302). The third air inlet (301) is connected to the second air outlet (202). The third filter assembly (3) is provided with a third filter chamber. The third air inlet (301), the third filter chamber and the third air outlet (302) are connected in sequence. The fan assembly (4) is provided with a fourth air inlet (401) and a fourth air outlet (402). The fourth air inlet (401) is connected to the third air outlet (302), and the fourth air outlet (402) can be connected to external equipment. The fan assembly (4) is used to generate negative pressure to draw air in from the first air inlet (101) and output it from the fourth air outlet (402).

2. The smoke and dust circulation and purification structure according to claim 1, characterized in that, The first filter assembly (1) is provided with a first dust outlet (104) communicating with the first filter chamber (102), and the second filter assembly (2) is provided with a second dust outlet (203) communicating with the second filter chamber. It also includes a first collection bucket (5) and a second collection bucket (6). The opening of the first collection bucket (5) is arranged opposite to the first dust outlet (104), and the opening of the second collection bucket (6) is arranged opposite to the second dust outlet (203).

3. The smoke and dust circulation and purification structure according to claim 2, characterized in that, It also includes a first valve body (7), which is disposed on the first filter assembly (1) and / or the first collection bucket (5). The first valve body (7) is located between the first filter assembly (1) and the first collection bucket (5). The first valve body (7) is used to control the opening or closing between the first filter assembly (1) and the first collection bucket (5). And / or may also include a second valve body (8) disposed on the second filter assembly (2) and / or the second collection tank (6), the second valve body (8) being located between the second filter assembly (2) and the second collection tank (6), the second valve body (8) being used to control the opening or closing between the second filter assembly (2) and the second collection tank (6).

4. The smoke and dust circulation and purification structure according to claim 2, characterized in that, The first air inlet (101) is located at the top of the first filter assembly (1) or the first air inlet (101) is located near the top of the first filter assembly (1), and the first dust outlet (104) is located at the bottom of the first filter assembly (1). And / or the first filter assembly (1) has at least a portion of a cross-sectional area that gradually decreases in the direction toward the first collection bucket (5); And / or the second filter component (2) has a cross-sectional area that gradually decreases at least in part in the direction toward the second collection bucket (6).

5. The smoke and dust circulation and purification structure according to claim 1, characterized in that, The second air inlet (201) is connected to the first air outlet (103) through a first pipe, the third air inlet (301) is connected to the second air outlet (202) through a second pipe, and the fourth air inlet (401) is connected to the third air outlet (302) through a third pipe. And / or may also include a temperature sensor (9) disposed on the first filter assembly (1) and / or the second filter assembly (2) and / or the third filter assembly (3); And / or may also include a pressure transmitter (10) disposed on the first filter assembly (1) and / or the second filter assembly (2) and / or the third filter assembly (3).

6. The smoke and dust circulation and purification structure according to claim 1, characterized in that, The second filter assembly (2) includes a filter cylinder (21), a cover (22), and a locking assembly (23). The filter cylinder (21) is provided with a second air inlet (201), a second filter chamber, and a second air outlet (202). The cover (22) is disposed on the filter cylinder (21). The locking assembly (23) is disposed on the filter cylinder (21) and / or the cover (22). The locking assembly (23) is capable of locking or unlocking the cover (22) and the filter cylinder (21).

7. The smoke and dust circulation and purification structure according to claim 6, characterized in that, The cover (22) is rotatable relative to the filter cylinder (21); And / or the number of the locking components (23) is multiple, and the multiple locking components (23) are all disposed on the filter cylinder (21), and the multiple locking components (23) are disposed at intervals along the circumference of the filter cylinder (21).

8. The smoke and dust circulation and purification structure according to claim 6, characterized in that, The locking assembly (23) includes a support member (231) and a locking member (232). The support member (231) is disposed on the filter cylinder (21), and the locking member (232) is disposed on the support member (231). The locking member (232) is rotatable relative to the support member (231). The locking member (232) is rotatable relative to the support member (231) by at least a first angle and a second angle. When the locking member (232) rotates relative to the support member (231) by the first angle, the locking member (232) locks the cover (22) and the filter cylinder (21). When the locking member (232) rotates relative to the support member (231) by the second angle, the cover (22) and the filter cylinder (21) are unlocked.

9. The smoke and dust circulation and purification structure according to claim 8, characterized in that, The locking member (232) includes a rotating part (2321), a support rod part (2322), and a locking protrusion (2323). The rotating part (2321) is movably disposed on the support member (231). The rotating part (2321) can rotate relative to the support member (231) by a first angle and a second angle. The support rod part (2322) is disposed on the rotating part (2321), and the locking protrusion (2323) is disposed on the support rod part (2322). When the rotating part (2321) rotates relative to the support member (231) by a first angle, the locking protrusion (2323) abuts against the cover (22). When the rotating part (2321) rotates relative to the support member (231) by a second angle, the locking protrusion (2323) separates from the cover (22). And / or may also include a gripper (233) disposed on the locking member (232) at one end of the locking member (232) away from the support member (231).

10. A purification device, characterized in that, include: Housing assembly; The smoke and dust circulation and purification structure according to any one of claims 1-9, wherein the smoke and dust circulation and purification structure is disposed on the housing assembly, and the smoke and dust circulation and purification structure is used to purify air.

Images