Medical stone filter tip

Abstract

The utility model discloses a medical stone filter tip which comprises a suction cylinder, a filter cylinder and a smoke clamping cylinder, the suction cylinder, the filter cylinder and the smoke clamping cylinder are sequentially connected in a threaded mode in the axial direction, a filter element is installed in the filter cylinder, and the filter element is sequentially wrapped by an activated carbon layer, a medical stone particle layer and a stainless steel net layer from inside to outside to form a cylindrical structure. The end, close to the suction cylinder, of the filter element is sealed with a pressing ring, and a center opening of the pressing ring communicates with the activated carbon layer. According to the utility model, the activated carbon layer, the medical stone particle layer and the stainless steel mesh layer which are sequentially coated and combined from inside to outside are arranged to form the barrel-shaped filter element, so that smoke can be laterally filtered inwards through the outer barrel of the filter element, the filter area of the filter element is effectively expanded, the filter efficiency is higher, the airflow resistance is reduced, and the service life of the filter element is prolonged. And the filter element can be detached between the suction cylinder and the filter cylinder, so that cleaning and replacement are facilitated, and the problem of high cost caused by overall replacement after a filter layer of an existing filter tip is saturated is solved.

Description

Technical Field

[0001] This utility model relates to the field of filter tip technology, and in particular to a maifan stone filter tip. Background Technology

[0002] Maifan stone filter tips are cigarette holder products that combine the properties of maifan stone material. Their main function is to be placed on the cigarette butt part, and through the adsorption and filtration effect of maifan stone, reduce the inhalation of harmful substances during smoking.

[0003] The filter element of existing filter nozzles usually adopts a multi-layer filter structure with the same width as the inner diameter of the filter cartridge. This type of filter element has a small filtration surface, high airflow resistance, and the filter layer is easily saturated, making it difficult to clean or replace. Once the filter layer is saturated, the performance is poor, and the entire filter nozzle needs to be replaced, which is costly.

[0004] Therefore, we propose a maifan stone filter tip to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a maifan stone filter tip to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A maifan stone filter tip includes a suction cylinder, a filter cylinder, and a clamping cylinder. The suction cylinder, filter cylinder, and clamping cylinder are sequentially threaded together along the axial direction. A filter element is installed inside the filter cylinder. The filter element is formed by a cylindrical structure consisting of an activated carbon layer, a maifan stone particle layer, and a stainless steel mesh layer, which are sequentially wrapped from the inside out. A pressure ring is closed at one end of the filter element near the suction cylinder, and the center hole of the pressure ring is connected to the activated carbon layer. When the suction cylinder and the filter cylinder are tightened, the pressure ring is clamped inside the connection between the suction cylinder and the filter cylinder.

[0008] In a further embodiment, a raised edge extends axially at the screw-in port of the suction cylinder and the filter cylinder, and a sealing ring is fitted over the pressure ring, with the raised edge and the sealing ring tightly fitted together.

[0009] In a further embodiment, the sealing ring has an L-shaped cross-section, and the outer circumference of the sealing ring is embedded in the gap between the pressure ring and the filter cylinder.

[0010] In a further embodiment, the inner wall of the filter cylinder is provided with a convex ring, and the pressing surface of the convex ring and the pressure ring is a conical surface, and an O-ring is inlaid on the conical surface of the convex ring.

[0011] In a further embodiment, a retaining ring is formed at the screw-on port of the cigarette clamp and the filter cylinder, extending in the axial direction, and a sealing gasket is embedded on the side of the retaining ring near the filter cylinder.

[0012] In a further embodiment, at least two flexible rubber rings are installed axially inside the cigarette holder, and the inner opening of the flexible rubber rings is provided with several expansion joints in the circumferential direction.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention features a cylindrical filter core composed of an activated carbon layer, a maifan stone granule layer, and a stainless steel mesh layer arranged sequentially from the inside out. This allows flue gas to be filtered from the outside of the filter core into the inside, effectively expanding the filter area and increasing filtration efficiency. It also reduces airflow resistance. Furthermore, the filter core can be disassembled from the suction cylinder and the filter cylinder for easy cleaning and replacement, solving the problem of high costs associated with replacing the entire filter when the filter layer becomes saturated. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the half-section structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the chimney of this utility model;

[0018] Figure 4 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Suction cylinder; 11. Raised edge; 2. Filter cylinder; 21. Raised ring; 3. Clamping pipe; 31. Baffle ring; 4. Filter core; 41. Activated carbon layer; 42. Maifan stone granule layer; 43. Stainless steel mesh layer; 44. Pressure ring; 5. Sealing ring; 6. O-ring; 7. Sealing gasket; 8. Flexible rubber ring; 81. Expansion joint. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-2 A type of maifan stone filter tip includes a suction cylinder 1, a filter cylinder 2, and a cigarette clamping cylinder 3. The suction cylinder 1 serves as the inlet and is used to cover the cigarette butt. The suction cylinder 1, filter cylinder 2, and cigarette clamping cylinder 3 are sequentially threaded together axially. A filter element 4 is installed inside the filter cylinder 2. This filter element 4 is formed by a cylindrical structure consisting of an activated carbon layer 41, a maifan stone particle layer 42, and a stainless steel mesh layer 43, sequentially wrapped from the inside out. Specifically, the outer diameter of the stainless steel mesh layer 43 is smaller than the inner diameter of the filter cylinder 2, so that after the filter element 4 is installed inside the filter cylinder 2, a gap remains between its outer wall and the inner wall of the filter cylinder 2. The gap forms a filter chamber, increasing the filter surface of the filter element 4. The end of the filter element 4 closest to the suction cylinder 1 is sealed with a pressure ring 44, and the central hole of the pressure ring 44 is connected to the activated carbon layer 41. This allows the flue gas to pass through the stainless steel mesh layer 43 to intercept large particles, then through the maifan stone particle layer 42 to the activated carbon layer 41, and finally be discharged from the central hole of the pressure ring 44 to the suction cylinder 1. When the suction cylinder 1 and the filter cylinder 2 are tightened, the pressure ring 44 is clamped inside the connection between the suction cylinder 1 and the filter cylinder 2. Conversely, when the suction cylinder 1 and the filter cylinder 2 are unscrewed, the filter element 4 can be removed from the filter cylinder 2, making it easy to clean and replace.

[0024] Please see Figure 4To improve the sealing performance of the screw-on connection between the suction cylinder 1 and the filter cylinder 2, a raised edge 11 is formed extending axially at the screw-on port of the suction cylinder 1 and the filter cylinder 2. A sealing ring 5 is fitted over the pressure ring 44. When the suction cylinder 1 and the filter cylinder 2 are screwed on, the raised edge 11 and the sealing ring 5 fit tightly together, improving the sealing performance. Furthermore, the sealing ring 5 has an L-shaped cross-section, so that part of it covers the end face of the pressure ring 44 and the other part covers the circumferential side of the pressure ring 44. A groove gap is formed between the pressure ring 44 and the filter cylinder 2. The outer circumference of the sealing ring 5 can be fitted into the gap for further sealing. In addition, a raised ring 21 is provided on the inner wall of the filter cylinder 2, and the pressing surface of the raised ring 21 and the pressure ring 44 is a conical surface. An O-ring 6 is embedded on the conical surface of the raised ring 21. The O-ring 6 and the sealing ring 5 cooperate to provide a double seal.

[0025] Please see Figure 2-3 In order to improve the sealing performance of the screw connection between the cigarette clamp 3 and the filter cylinder 2, a retaining ring 31 is formed by extending towards the axis at the screw connection port of the cigarette clamp 3 and the filter cylinder 2. A sealing gasket 7 is embedded on the side of the retaining ring 31 near the filter cylinder 2. When the cigarette clamp 3 and the filter cylinder 2 are screwed together, the port of the filter cylinder 2 is in close contact with the sealing gasket 7, thereby improving the sealing performance.

[0026] Please see Figure 3 The inside of the cigarette clamp 3 is equipped with at least two flexible rubber rings 8 along the axial direction, and the inner ring of the flexible rubber ring 8 is provided with several expansion joints 81 along the circumferential direction, so that when the cigarette butt is inserted into the cigarette clamp 3, the flexible rubber ring 8 can fit tightly against the outer circumferential surface of the cigarette butt, thereby preventing smoke from leaking from the cigarette clamp 3.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A maifan stone filter tip, comprising a suction tube (1), a filter tube (2), and a cigarette holder (3), characterized in that: The suction cylinder (1), filter cylinder (2) and clamping pipe (3) are screwed together axially. The filter cylinder (2) is equipped with a filter core (4). The filter core (4) is formed by an activated carbon layer (41), a maifan stone particle layer (42) and a stainless steel mesh layer (43) sequentially covering and combining them from the inside to the outside to form a cylindrical structure. The filter core (4) is sealed with a pressure ring (44) at one end near the suction cylinder (1), and the center hole of the pressure ring (44) is connected to the activated carbon layer (41). When the suction cylinder (1) and the filter cylinder (2) are screwed together, the pressure ring (44) is clamped inside the connection between the suction cylinder (1) and the filter cylinder (2).

2. The Maifan stone filter tip according to claim 1, characterized in that: The suction cylinder (1) and the filter cylinder (2) have a convex edge (11) extending towards the axis at the screw joint. The pressure ring (44) is fitted with a sealing ring (5), and the convex edge (11) and the sealing ring (5) are tightly fitted together.

3. A maifan stone filter tip according to claim 2, characterized in that: The sealing ring (5) has an L-shaped cross-section, and the outer circumference of the sealing ring (5) is embedded in the gap between the pressure ring (44) and the filter cylinder (2).

4. A maifan stone filter tip according to claim 1, characterized in that: The inner wall of the filter cylinder (2) is provided with a convex ring (21), and the pressing surface of the convex ring (21) and the pressure ring (44) is a conical surface, and an O-ring (6) is inlaid on the conical surface of the convex ring (21).

5. A maifan stone filter tip according to claim 1, characterized in that: The retaining ring (31) extends in the axial direction at the screw joint of the chimney (3) and the filter cylinder (2), and a sealing gasket (7) is embedded on the side of the retaining ring (31) near the filter cylinder (2).

6. A maifan stone filter tip according to claim 1, characterized in that: The inside of the clamping pipe (3) is equipped with at least two flexible rubber rings (8) along the axial direction, and the inner ring of the flexible rubber ring (8) is provided with several expansion joints (81) along the circumferential direction.

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