Detachable and washable U-shaped filter structure

Abstract

The utility model relates to the technical field of cigarette filters, and discloses a detachable and washable U-shaped filter structure which comprises a shell and a filter tip, one end of the shell is fixedly connected with a clamping cylinder, the inner wall of the filter tip is connected to the outer wall of the clamping cylinder in a sliding mode, an air suction port is formed in the filter tip, the inner wall of the shell is connected with a filter element in a sliding mode, and the filter element is connected with the filter tip in a sliding mode. A first U-shaped groove is formed in the outer wall of the filter element, a second U-shaped groove is formed in the outer wall of the filter element, a rear limiting block is fixedly connected to the inner wall of the shell, and a front limiting block is fixedly connected to the inner wall of the filter tip. According to the flue gas purification device, smoke enters from the first U-shaped groove downwards, reaches the bottom, then flows upwards, reaches the interior of the second U-shaped groove again, then flows downwards from the top and enters the gas suction port through the connecting hole, the smoke is reversed in the shell and vertically circulates, the effects of cooling, filtering and purifying the smoke are achieved, the cooling effect is good, and the purification effect is good. The filtering efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette filters, in particular to a detachable and washable U-shaped filter structure. Background Art

[0002] Cigarette smoke contains various harmful substances such as tar, nicotine, carbon monoxide, benzopyrene, etc. Long-term smoking can cause damage to lung tissue, resulting in adhesion, lodging or even loss of cilia of bronchial mucosal epithelial cells, reducing the self-cleaning ability of the respiratory tract. The filter structure can adsorb and intercept some harmful substances such as tar and nicotine. During smoking, when the smoke passes through the filter structure, some larger particulate matters will be blocked, thereby reducing the content of harmful substances entering the human respiratory tract.

[0003] In the prior art, due to the structural disadvantages of the filter structure, the flue gas is not easy to flow evenly in the filter structure, the flue gas distribution is uneven, the cooling effect is weakened, and it is not conducive to improving the filtration efficiency. Therefore, a detachable and washable U-shaped filter structure is proposed. Summary of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides a detachable and washable U-shaped filter structure, aiming to improve the problems that in the prior art, the flue gas is not easy to flow evenly in the filter structure, the flue gas distribution is uneven, the cooling effect is weakened, and it is not conducive to improving the filtration efficiency.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] A detachable and washable U-shaped filter structure, including a housing and a filter tip. One end of the housing is fixedly connected with a cartridge, the inner wall of the filter tip is slidably connected to the outer wall of the cartridge, an air inlet is opened inside the filter tip, a filter element is slidably connected to the inner wall of the housing, a first U-shaped groove is opened on the outer wall of the filter element, a second U-shaped groove is opened on the outer wall of the filter element, a rear limit block is fixedly connected to the inner wall of the housing, a front limit block is fixedly connected to the inner wall of the filter tip, one end of the filter element is mutually attached to the outer wall of the rear limit block, the other end of the filter element is mutually attached to the outer wall of the front limit block, and a connection hole is opened inside the housing.

[0007] Preferably, the housing is made of transparent plastic material.

[0008] Preferably, the air inlet and the connection hole are mutually communicated.

[0009] Preferably, the first U-shaped groove and the second U-shaped groove are mutually communicated.

[0010] Preferably, the inner diameter of the housing is the same as the inner diameter of the cartridge.

[0011] Preferably, a cigarette sleeve is fixedly connected to the inner wall of the housing.

[0012] The utility model has the following beneficial effects:

[0013] 1. In the utility model, the smoke enters from the first U-shaped groove and flows downward, reaches the bottom and then flows upward, reaches the inside of the second U-shaped groove again, then flows downward from the top, and then enters the connecting air inlet through the connecting hole. The flue gas is reversed and vertically circulated inside the housing, achieving the effects of cooling, filtering, and purifying the flue gas, with good cooling effect and high filtering efficiency.

[0014] 2. In the utility model, after use, the filter tip can be directly slid out from the outer wall of the cartridge, and then the filter element can be directly slid out from the inner wall of the housing, so as to facilitate the cleaning of the filter element for reuse. Description of the Drawings

[0015] Figure 1 is a perspective view of the detachable and washable U-shaped filter structure proposed by the utility model;

[0016] Figure 2 is a schematic diagram of the housing of the detachable and washable U-shaped filter structure proposed by the utility model;

[0017] Figure 3 is a sectional view of the housing of the detachable and washable U-shaped filter structure proposed by the utility model;

[0018] Figure 4 is a schematic diagram of the filter element of the detachable and washable U-shaped filter structure proposed by the utility model.

[0019] Legend Explanation:

[0020] 1. Housing; 2. Filter tip; 3. Cartridge; 4. Air inlet; 5. Filter element; 6. First U-shaped groove; 7. Second U-shaped groove; 8. Front limit block; 9. Rear limit block; 10. Connecting hole; 11. Cigarette sleeve. Detailed Implementation Modes

[0021] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the specification drawings of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0022] Refer to Figure 1 - Figure 4, An embodiment provided by the utility model: a detachable and washable U-shaped filter structure, including a housing 1 and a filter tip 2. One end of the housing 1 is fixedly connected with a clamping cylinder 3, the inner wall of the filter tip 2 is slidably connected to the outer wall of the clamping cylinder 3, an air inlet 4 is opened inside the filter tip 2, a filter element 5 is slidably connected to the inner wall of the housing 1, a first U-shaped groove 6 is opened on the outer wall of the filter element 5, a second U-shaped groove 7 is opened on the outer wall of the filter element 5, a rear limit block 9 is fixedly connected to the inner wall of the housing 1, a front limit block 8 is fixedly connected to the inner wall of the filter tip 2, one end of the filter element 5 is in mutual contact with the outer wall of the rear limit block 9, the other end of the filter element 5 is in mutual contact with the outer wall of the front limit block 8, and a connection hole 10 is opened inside the housing 1;

[0023] Specifically, a rear limit block 9 is fixedly connected to the inner wall of the housing 1, a front limit block 8 is fixedly connected to the inner wall of the filter tip 2, one end of the filter element 5 is in mutual contact with the outer wall of the rear limit block 9, and the other end of the filter element 5 is in mutual contact with the outer wall of the front limit block 8, which can prevent the filter element 5 from sliding out of the inner wall of the housing 1. At the same time, it also enables the filter element 5 to reserve a certain space in the filter tip 2 to ensure that the smoke can enter the air inlet 4 through the connection hole 10.

[0024] Refer to Figure 1 , the housing 1 is made of transparent plastic material;

[0025] Specifically, the housing 1 being made of transparent plastic material can observe the adhesion of tar on the outer wall of the filter element 5, thereby facilitating the cleaning of the filter element 5.

[0026] Refer to Figure 1 - Figure 4 , the air inlet 4 and the connection hole 10 are mutually penetrated; the first U-shaped groove 6 and the second U-shaped groove 7 are mutually penetrated; the inner diameter of the housing 1 is the same as the inner diameter of the clamping cylinder 3; a cigarette sleeve 11 is fixedly connected to the inner wall of the housing 1;

[0027] Specifically, the smoke enters from the first U-shaped groove 6, reaches the bottom and then flows upward, and then reaches the inside of the second U-shaped groove 7 again, and then flows downward from the top. The same inner diameter of the housing 1 and the clamping cylinder 3 is beneficial for the filter element 5 to slide into or out of the inner wall of the housing 1, and the cigarette sleeve 11 is used to fix the cigarette.

[0028] Working principle: When in use, insert the cigarette into the inner wall of the cigarette sleeve 11. The smoke enters from the first U-shaped groove 6, goes downward, reaches the bottom and then flows upward, reaches the inside of the second U-shaped groove 7 again, and then flows downward from the top, and then enters the air inlet 4 through the connection hole 10. The smoke gas reverses and vertically circulates inside the housing 1, achieving the effects of cooling, filtering, and purifying the smoke gas. After use, the filter tip 2 can be directly slid out from the outer wall of the clamping cylinder 3, and then the filter element 5 can be directly slid out from the inner wall of the housing 1, thereby facilitating the cleaning of the filter element 5 for reuse.

[0029] Finally, it should be noted that the above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. Removable and washable U-shaped filter structure, comprising a housing (1) and a filter tip (2), characterized in that: One end of the said outer shell (1) is fixedly connected with a clamping cylinder (3), the inner wall of the filter tip (2) is slidably connected to the outer wall of the clamping cylinder (3), an air suction port (4) is opened inside the filter tip (2), a filter element (5) is slidably connected to the inner wall of the outer shell (1), a first U-shaped groove (6) is opened on the outer wall of the filter element (5), a second U-shaped groove (7) is opened on the outer wall of the filter element (5), a rear limit block (9) is fixedly connected to the inner wall of the outer shell (1), a front limit block (8) is fixedly connected to the inner wall of the filter tip (2), one end of the filter element (5) is mutually attached to the outer wall of the rear limit block (9), the other end of the filter element (5) is mutually attached to the outer wall of the front limit block (8), and a connection hole (10) is opened inside the outer shell (1).

2. The detachable and washable U-shaped filter structure according to claim 1, wherein: The said outer shell (1) is made of transparent plastic material.

3. The detachable and washable U-shaped filter structure according to claim 1, wherein: The said air suction port (4) and the connection hole (10) are mutually penetrated.

4. The detachable and washable U-shaped filter structure according to claim 1, wherein: The said first U-shaped groove (6) and the second U-shaped groove (7) are mutually penetrated.

5. The detachable and washable U-shaped filter structure according to claim 1, characterized in that: The inner diameter of the said outer shell (1) is the same as the inner diameter of the clamping cylinder (3).

6. The detachable and washable U-shaped filter structure according to claim 1, wherein: A cigarette sleeve (11) is fixedly connected to the inner wall of the said outer shell (1).

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