Smoke recovery filter

Abstract

The utility model discloses a smoke recovery filter which comprises a filtering structure, a filtering part is arranged on the peripheral side of the filtering structure, one end of the filtering structure is a smoke facing side closed end, and the other end of the filtering structure is a smoke back side output end. The filter is installed at the front end of the smoke recycling pipeline, the fixing sleeve and the connecting sleeve of the filter are connected with the smoke recycling pipeline, the connecting sleeve and the filtering structure are connected to combine and install the smoke collecting hood for recycling, the smoke facing side of the filtering structure is arranged to be of a closed structure, local smoke blocking is achieved through the closed structure, and moxa smoke is prevented from being directly discharged outwards; smoke which is directly discharged outwards originally is guided to the peripheral side through the closed structure, so that the cold feeling is avoided, and the problem of mildew in the pipeline can be solved due to the fact that smoke is filtered in the front. Meanwhile, the fixing sleeve, the connecting sleeve and the filtering structure are assembled in a detachable mode, and assembling and replacing are convenient.

Description

Technical Field

[0001] This utility model belongs to the field of moxibustion smoke purification, specifically a smoke recovery filter. Background Technology

[0002] Existing moxibustion devices produce smoke during moxibustion treatment due to the burning of moxa sticks or moxa wool. The presence of smoke can cause some inconvenience to users and also pollute the surrounding environment.

[0003] Most existing smoke recovery devices use an end collection hood installed on the outside of the moxibustion device to draw the moxa smoke into the recovery box using negative pressure. After being processed in the recovery box, the smoke is discharged. Since the smoke inlet of the moxa smoke recovery pipe is directly connected to the smoke hood, the moxa smoke generated by the moxibustion device is directly recovered through the negative pressure of the recovery pipe. This can easily cause the airflow at the moxibustion site to be directly carried away, and at the same time, a certain amount of heat will also be carried away, resulting in a cold sensation at the moxibustion site, which in turn leads to an unsatisfactory moxibustion effect. Utility Model Content

[0004] The technical problem to be solved by this utility model is:

[0005] A pre-filter for a smoke recovery duct that provides a cooling sensation is provided.

[0006] To solve the above-mentioned technical problems, the inventors of this utility model, through practice and summarization, have derived the technical solution of this utility model, which adopts the following technical solution:

[0007] A smoke recovery filter includes a filter structure with a filter section arranged around its periphery. One end of the filter structure is a smoke-facing closed end, and the other end is a smoke-receiving output end.

[0008] In a preferred embodiment, the periphery of the smoke-facing closed end extends freely outward to the periphery of the filter structure, with an extension length of 0.1-1.0 times the radius of the filter section end face.

[0009] In a preferred embodiment, a circumferential groove is provided on the smoke-facing closed end and the smoke-repellent side, and the circumferential groove is located at the bottom of the filter section.

[0010] In a preferred embodiment, the smoke-facing side of the closed end of the smoke-facing side is provided with a first drainage surface and a second drainage surface distributed from the center to the outside, and the radius of the first drainage surface is smaller than the radius of the second drainage surface.

[0011] In a preferred embodiment, the smoke-facing closed end is a barrel-shaped structure, which is detachably installed on the end of the filter section. The height of the barrel-shaped structure is one-fifth to one-quarter of the height of the filter section.

[0012] In a preferred embodiment, the filter part includes a frame body, on which filter layer one and filter layer two are installed sequentially from the outside to the inside, and a connector is provided at the top of the frame body;

[0013] The filter also includes a fixed sleeve and a connecting sleeve, which are detachably connected to the filter structure. The connecting sleeve is located between the fixed sleeve and the filter structure.

[0014] In a preferred embodiment, the outer side of the connector is further provided with multiple sealing structures distributed on the outer wall of the connector.

[0015] In a preferred embodiment, a sealing layer is provided on the side of the skeleton body near the connecting sleeve.

[0016] In a preferred embodiment, the connecting sleeve is provided with a plurality of snap-fit ​​bodies circumferentially on the side near the skeleton body, and the skeleton body is provided with snap-fit ​​grooves corresponding to and adapted to the snap-fit ​​bodies on the side near the connecting sleeve, with the sealing layer distributed on the outside of the snap-fit ​​grooves.

[0017] In a preferred embodiment, a retaining ring is provided inside the connecting sleeve, a valve is provided circumferentially at the top of the connector, and a locking block is provided on the outside of the valve. The top thickness of the locking block is less than the bottom thickness, and the locking block and the retaining ring are detachably connected.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This utility model involves installing a filter at the front end of a smoke recovery pipe. The filter is connected to the smoke recovery pipe via a fixing sleeve and a connecting sleeve. The connecting sleeve is connected to the filter structure to assemble and install a smoke collection hood. By making the smoke-facing side of the filter structure a closed structure, local smoke blocking is achieved, preventing the smoke from being directly discharged outwards. The closed structure guides the smoke that would otherwise be directly discharged outwards to the surrounding area, thus preventing a cooling sensation. Furthermore, the pre-filtering of smoke can solve the problem of mold growth inside the pipe. Additionally, the fixing sleeve, connecting sleeve, and filter structure are assembled in a detachable manner, facilitating assembly and replacement.

[0020] 2. This utility model features an extended design at the closed end of the filter structure, using the extended length to guide the smoke in all directions. Simultaneously, a circumferential groove is provided on the smoke-repellent side, allowing the filtered oil to be collected, preventing dripping after a period of use. Alternatively, a barrel-shaped structure can be directly fitted onto the end of the filter structure, also serving as a container for the oil.

[0021] 3. This utility model assembles the connecting sleeve and the filter structure by means of disassembly and assembly. Since the smoke collection hood has a certain weight, it is necessary to ensure the stability of the disassembly and assembly structure and the prevention of smoke overflow during use. Therefore, a sealing part is provided on the filter part. The specific connection form between the sealing part and the connector and the connecting sleeve is used to achieve the stability of the structure and the prevention of smoke overflow. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0023] Figure 2 This is a diagram showing the connection relationship between the connecting sleeve and the filter structure of this utility model;

[0024] Figure 3 This is a structural diagram of the filter structure of this utility model;

[0025] Figure 4 This is a structural diagram of the closed end on the smoke-facing side;

[0026] Figure 5 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0027] Figure 6 This is a partial cross-sectional view of the filter part of this utility model;

[0028] Figure 7 This is the overall structural cross-section of the utility model. Figure 1 ;

[0029] Figure 8 for Figure 7 A magnified view of a section at point C;

[0030] Figure 9 This is the overall structural cross-section of the utility model. Figure 2 ;

[0031] Figure 10 This is a structural diagram of the smoke-facing closed end of Example 3.

[0032] In the diagram: 100, Filter structure; 110, Filter section; 120, Back-smoke side output end; 130, Front-smoke side closed end; 131, Circumferential groove; 132, Drainage surface one; 133, Drainage surface two; 111, Skeleton body; 112, Filter layer one; 113, Filter layer two; 114, Sealing layer; 115, Sealing structure; 116, Mounting body; 117, Mounting groove; 118, Connector; 200, Fixing sleeve; 300, Connecting sleeve; 310, Retaining ring; 311, Petal body; 312, Mounting block. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0034] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0035] Most existing smoke recovery devices use an end collection hood installed on the outside of the moxibustion device. The smoke is drawn into the recovery box by negative pressure, processed in the box, and then discharged. Since the smoke inlet of the smoke recovery pipe is directly connected to the smoke hood, the smoke generated by the moxibustion device is directly recovered by negative pressure through the recovery pipe. This can easily cause the airflow at the moxibustion site to be directly carried away, and at the same time, a certain amount of heat will be carried away, resulting in a cold sensation at the moxibustion site, which will lead to an unsatisfactory moxibustion effect. At the same time, since the smoke contains moxa oil and smoke particles, if the smoke is only processed in the box, moisture, moxa oil, and particles will remain on the inner wall of the pipe.

[0036] Example 1

[0037] A smoke recovery filter, such as Figure 1 As shown, the filter is installed at the smoke inlet end of the smoke recovery pipe, which is the pre-filter. It includes a filter structure 100, and a filter section 110 is provided around the filter structure 100. One end of the filter structure 100 is the smoke-facing closed end 130, and the other end is the smoke-repelling output end 120.

[0038] By installing the filter structure 100 at the smoke inlet of the moxa smoke recovery pipe, the sealing effect of the smoke-facing closed end 130 can prevent the moxa smoke from being directly discharged, thus avoiding the problem of a cooling sensation at the moxibustion site. Secondly, the filter structure 100 is used for filtering moxa smoke (such as filtering moxa oil, unburned smoke particles, odors, etc. in the moxa smoke). If conditions permit, the filtered moxa smoke can be discharged directly.

[0039] Example 2

[0040] The following improvements were made based on Example 1, such as... Figures 1 to 3As shown, the periphery of the smoke-facing closed end 130 extends freely outward to the outer periphery of the filter structure 100, with an extension length of 0.1-1.0 times the radius of the end face of the filter portion 110. By extending the smoke-facing closed end 130 outward, the smoke can be drawn out as far as possible, and the outward drawing path needs to be moderate, i.e., maintained at an extension length of 0.1-1.0 times the radius of the end face of the filter portion 110. Utilizing outward drawing reduces the rapid loss of heat within the smoke collection hood; the smoke-facing closed end 130 is made of an oleophobic material.

[0041] Among them, such as Figures 1 to 3 As shown, a circumferential groove 131 is provided on the smoke-facing closed end 130 and the smoke-repelling side, and the circumferential groove 131 is located at the bottom of the filter section 110. The circumferential groove 131 can be used to collect moxa oil, preventing the moxa oil from dripping after a period of use.

[0042] Among them, such as Figure 4 As shown, the smoke-facing closed end 130 is provided with a first drainage surface 132 and a second drainage surface 133 distributed from the center outwards. The radius of the first drainage surface 132 is smaller than the radius of the second drainage surface 133. The first drainage surface 132 can guide the smoke outwards, as far away as possible from the effective filtration area of ​​the filter section 110.

[0043] Example 3

[0044] Based on Example 1, the following improvements are made, such as Figure 5 and Figure 10 As shown, the smoke-facing closed end 130 has a barrel-shaped structure and is detachably installed on the end of the filter part 110. The height of the barrel-shaped structure is one-fifth to one-quarter of the height of the filter part 110. The barrel-shaped structure can also be used to collect and process the moxa oil.

[0045] Example 4

[0046] Based on Example 1, the following improvements are made, such as Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, the filter part 110 includes a frame body 111, on which filter layer 112 and filter layer 113 are installed sequentially from the outside to the inside, and a connector 118 is provided on the top of the frame body 111.

[0047] The filter also includes a fixing sleeve 200 and a connecting sleeve 300. The fixing sleeve 200, the connecting sleeve 300, and the filter structure 100 are detachably connected. The connecting sleeve 300 is located between the fixing sleeve 200 and the filter structure 100.

[0048] The connector 118 and the connecting sleeve 300 are connected in a detachable manner. The smoke collection hood is installed between the frame body 111 and the connecting sleeve 300, and the fixing sleeve 200 is connected to the smoke recovery pipe.

[0049] Example 5

[0050] Based on Example 4, the following improvements are made, such as Figure 3 As shown, the connector 118 is also provided with multiple sealing structures 115 distributed on the outer wall of the connector 118. The sealing structures 115 are used to prevent the smoke from escaping.

[0051] Example 6

[0052] Based on Example 4, the following improvements are made, such as Figures 7 to 9 As shown, a sealing layer 114 is provided on the side of the skeleton body 111 near the connecting sleeve 300. When the filter structure 100 and the connecting sleeve 300 are assembled with the smoke collection hood, the sealing layer 114 is in a compressed state. The compressed state ensures a sealing effect and prevents the smoke from overflowing.

[0053] One way, such as Figure 7 and Figure 8 As shown, the connecting sleeve 300 has multiple snap-fit ​​bodies 116 arranged circumferentially on the side near the skeleton body 111. The skeleton body 111 has snap-fit ​​grooves 117 on the side near the connecting sleeve 300 that correspond to and fit the snap-fit ​​bodies 116. The sealing layer 114 is distributed on the outside of the snap-fit ​​grooves 117. The snap-fit ​​bodies 116 and the snap-fit ​​grooves 117 are detachably connected, so that the sealing layer 114 is in a compressed state after connection, ensuring a seal.

[0054] Another way, such as Figure 9 As shown, the connecting sleeve 300 has a retaining ring 310 inside, and the connector 118 has a flap 311 circumferentially arranged on the top. A locking block 312 is arranged on the outside of the flap 311. The top thickness of the locking block 312 is less than the bottom thickness. The locking block 312 and the retaining ring 310 are detachably connected. The locking block 312 allows for detachment during installation by utilizing the elastic deformation of the flap 311, and also ensures the compression state of the sealing layer 114 after assembly.

[0055] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A smoke recovery filter, characterized in that, It includes a filter structure (100), a filter part (110) is provided around the filter structure (100), one end of the filter structure (100) is a smoke-facing closed end (130), and the other end is a smoke-repellent output end (120). The periphery of the smoke-facing closed end (130) extends freely outward to the periphery of the filter structure (100), with an extension of 0.1-1.0 times the radius of the end face of the filter part (110). A circumferential groove (131) is provided on the smoke-facing closed end (130) and the smoke-repelling side. The circumferential groove (131) is located at the bottom of the filter section (110). The smoke-facing closed end (130) is provided with a first drainage surface (132) and a second drainage surface (133) distributed from the middle to the outside. The radius of the first drainage surface (132) is smaller than the radius of the second drainage surface (133).

2. The smoke recovery filter according to claim 1, characterized in that, The smoke-facing closed end (130) is a barrel-shaped structure. The smoke-facing closed end (130) is detachably installed on the end of the filter part (110). The height of the barrel-shaped structure is one-fifth to one-quarter of the height of the filter part (110).

3. The smoke recovery filter according to claim 1, characterized in that, The filter section (110) includes a frame body (111), on which a filter layer one (112) and a filter layer two (113) are installed sequentially from the outside to the inside, and a connector (118) is provided on the top of the frame body (111). The filter also includes a fixed sleeve (200), a connecting sleeve (300), the fixed sleeve (200), the connecting sleeve (300), and the filter structure (100) are detachably connected, and the connecting sleeve (300) is located between the fixed sleeve (200) and the filter structure (100).

4. The smoke recovery filter according to claim 3, characterized in that, The connector (118) is also provided with multiple sealing structures (115) distributed on the outer wall of the connector (118).

5. A smoke recovery filter according to claim 3, characterized in that, A sealing layer (114) is provided on the side of the skeleton body (111) near the connecting sleeve (300).

6. The smoke recovery filter according to claim 5, characterized in that, The connecting sleeve (300) has a plurality of snap-fit ​​bodies (116) circumferentially arranged on the side near the skeleton body (111). The skeleton body (111) has a snap-fit ​​groove (117) on the side near the connecting sleeve (300) that corresponds to and matches the snap-fit ​​body (116). The sealing layer (114) is distributed on the outside of the snap-fit ​​groove (117).

7. A smoke recovery filter according to claim 5, characterized in that, The connecting sleeve (300) is provided with a retaining ring (310) inside, and a valve body (311) is provided on the top circumferential direction of the connector (118). A locking block (312) is provided on the outside of the valve body (311). The top thickness of the locking block (312) is less than the bottom thickness. The locking block (312) and the retaining ring (310) are connected in a detachable manner.

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