Small canister

Abstract

The utility model relates to a small canister which comprises a filter tank, an end cover, two rubber rings, two filter plates, two pieces of filter paper and a filter assembly, the filter tank is sleeved with the end cover, the two rubber rings are arranged in the filter tank, and the two filter plates are assembled on the opposite sides of the two rubber rings. According to the small canister, the end cover is pressed on the outer side of the canister through the capping machine, the installed end cover extrudes the two rubber rings and the filter assembly in the canister at the same time, and the two rubber rings are in a compressed state; the two rubber rings can be automatically rebounded after being compacted due to vibration in the transportation process of the filter assembly, so that a gap between the two rubber rings and the filter assembly is compensated, and the two pieces of filter paper are always tightly attached to the upper side and the lower side of the filter assembly; the problem that due to vibration, activated carbon is further compacted, gaps exist between the activated carbon and filter paper, impurities escape and are filtered, and the expected filtering effect cannot be achieved is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas filter canisters, in particular to a small gas filter canister. Background Art

[0002] A gas filter canister is a tank device filled with filling materials such as activated carbon. The filling materials have chemical and physical adsorption and filtering capabilities, and can remove dust, toxic and harmful substances in the air. The air filtered by the gas filter canister is provided for people to breathe. This device can be large or small, and can be determined based on factors such as the connecting components and device requirements, the amount of dust and toxic substances in the air, the size of the air space required for filtering, and the required life of the gas filtering equipment.

[0003] At present, during the transportation of gas filter canisters, the vibration causes the activated carbon to be further compacted and a gap to appear between the activated carbon and the filter paper. However, the gap allows the air to bypass the activated carbon without being effectively filtered, resulting in a decrease in filtration efficiency. In addition, activated carbon removes impurities and harmful substances from the air through surface adsorption. If there is a gap, these impurities escape the filtration process, and the expected filtration effect cannot be achieved. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a small gas filter canister, which solves the problem that the activated carbon is further compacted due to vibration, and a gap appears between the activated carbon and the filter paper, allowing impurities to escape from the filtration process, thereby failing to achieve the expected filtering effect.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a small-sized gas filter canister, comprising a filter canister, an end cover, two rubber rings, two filter plates, two filter papers and a filter assembly;

[0006] The end cover is sleeved on the outside of the filter tank, the two rubber rings are arranged inside the filter tank, the two filter plates are assembled on the opposite sides of the two rubber rings, the two filter papers are arranged on the opposite sides of the two filter plates, and the filter assembly is filled between the two filter papers;

[0007] The rubber ring on the upper side is fitted with the inner top wall of the end cover so that the end cover squeezes the two rubber rings after being connected to the filter tank.

[0008] Further, the top of the end cover protrudes upward to form an exhaust chamber;

[0009] The bottom of the filter tank protrudes downward to form an air intake chamber.

[0010] Furthermore, an exhaust hole is opened at the top of the exhaust chamber, and a sealing plug is interference-fitted inside the exhaust hole.

[0011] Furthermore, the bottom of the air intake chamber is connected to an air intake pipe for connecting to a gas mask;

[0012] A sealing cover is threadedly connected to the outer side of the air inlet pipe.

[0013] Further, the filter assembly is an activated carbon layer;

[0014] The filter assembly is divided into a first filter layer, a second filter layer, a third filter layer, a fourth filter layer, a fifth filter layer and a sixth filter layer from bottom to top;

[0015] The particle sizes of the first filter layer, the second filter layer, the third filter layer, the fourth filter layer, the fifth filter layer and the sixth filter layer are 12 mesh, 14 mesh, 16 mesh, 18 mesh, 20 mesh and 24 mesh respectively.

[0016] Furthermore, a plurality of filter holes are provided inside the filter plate.

[0017] Furthermore, the rubber ring is an elastic rubber ring, and the rubber ring is attached to the inner circumferential wall of the filter tank.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0019] The small gas filter canister is pressed with the end cap on the outside of the filter canister by a capping machine, and the installed end cap squeezes the two rubber rings and the filter assembly inside the filter canister at the same time, and makes the two rubber rings in a compressed state, ensuring that the two rubber rings can automatically rebound after being compacted due to vibration during the transportation of the filter assembly, thereby compensating for the gap between the two rubber rings and the filter assembly, ensuring that the two filter papers are always tightly fitted to the upper and lower sides of the filter assembly, and effectively solving the problem that the activated carbon is further compacted due to vibration, causing a gap to appear between the activated carbon and the filter paper, and impurities escape from being filtered, thereby failing to achieve the expected filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the explosion structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the filter assembly structure of the utility model

[0024] In the figure: 1. filter tank; 2. end cover; 3. rubber ring; 4. filter plate; 5. filter paper; 6. filter assembly; 7. exhaust chamber; 8. intake chamber; 9. sealing plug; 10. intake pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-3 A small gas filter canister in this embodiment is used to compress the activated carbon inside the filter canister 1 to ensure that no gap will appear between the activated carbon inside the filter canister and the filter paper 5 after being vibrated.

[0027] Specifically, it includes a filter tank 1, an end cover 2, two rubber rings 3, two filter plates 4, two filter papers 5 and a filter assembly 6; the end cover 2 is sleeved on the outside of the filter tank 1, the two rubber rings 3 are arranged inside the filter tank 1, the two filter plates 4 are assembled on the opposite side of the two rubber rings 3, the two filter papers 5 are arranged on the opposite side of the two filter plates 4, and the filter assembly 6 is filled between the two filter papers 5; the upper rubber ring 3 is in contact with the inner top wall of the end cover 2, and a plurality of filter holes are opened inside the filter plate 4.

[0028] During the actual setting, firstly, one of the rubber rings 3 is placed on the inner bottom wall of the filter tank 1, and then one of the filter plates 4 is attached to the rubber ring 3, and then one of the filter papers 5 is laid on the filter plate 4, and then the filter assembly 6 is laid on the filter paper 5, and the filter assembly 6 inside the filter tank 1 is vibrated to reduce the gap in the filter assembly 6, and then another filter paper 5, the filter plate 4 and the rubber ring 3 are laid on the filter assembly 6 from bottom to top in sequence, and then the end cover 2 is pressed onto the outside of the filter tank 1 by a capping machine, and the installed end cover 2 squeezes the two rubber rings 3 and the filter assembly inside the filter tank 1 at the same time, and makes the two rubber rings 3 in a compressed state.

[0029] It should be noted that the capping machine mentioned in this embodiment is a prior art, which is commonly used for pressing cans and can also be applied to the connection between the end cap 2 and the filter tank 1 in this embodiment, and will not be described in detail here.

[0030] In addition, the connection between the filter cover 3 and the filter tank 1 in this embodiment can be achieved by, but not limited to, a capping machine, and the two can also be connected by threaded connection.

[0031] Furthermore, when a gap appears in the filter assembly 6 inside the filter tank 1 after vibration, the two rubber rings 3 automatically rebound, thereby pushing the two filter plates 4 and the two filter tanks 4 to move toward each other, so as to ensure that the two filter papers 5 are always in contact with the upper and lower sides of the filter assembly 6, thereby avoiding the appearance of a gap between the filter paper 5 and the filter assembly 6.

[0032] Furthermore, the top of the end cover 2 protrudes upward to form an exhaust chamber 7; the bottom of the filter tank 1 protrudes downward to form an air intake chamber 8, an exhaust hole is opened at the top of the exhaust chamber 7, and a sealing plug 9 is interference fit inside the exhaust hole, and the bottom of the air intake chamber 8 is connected to an air intake pipe 10 for connection with a gas mask; a sealing cover is threadedly connected to the outside of the air intake pipe 10.

[0033] In actual settings, an exhaust chamber 7 and an air intake chamber 8 are respectively formed at the end cover and the bottom inside the filter tank 1. The air intake chamber 8 is connected to the gas mask through the air intake pipe 10, and the exhaust chamber 7 is connected to the outside through the exhaust hole. When air enters the filter tank 1 through the air intake pipe 10, the activated carbon can adsorb and filter harmful gases, particulate matter and chemicals in the air, and when not in use, the sealing plug 9 and the sealing cover inside the exhaust hole can prevent harmful substances from entering the air again.

[0034] Preferably, the filter assembly 6 is an activated carbon layer, and the filter assembly 6 is divided into a first filter layer 601, a second filter layer 601, a third filter layer 601, a fourth filter layer 601, a fifth filter layer 601 and a sixth filter layer 601 from bottom to top; the particle sizes of the first filter layer 601, the second filter layer 601, the third filter layer 601, the fourth filter layer 601, the fifth filter layer 601 and the sixth filter layer 601 are 12 mesh, 14 mesh, 16 mesh, 18 mesh, 20 mesh and 24 mesh respectively. In this embodiment, the particle sizes of each layer of activated carbon and their proportions are: 12 mesh: 4.5%, 14 mesh: 14.6%, 16 mesh: 30.4%, 18 mesh: 28.2%, 20 mesh: 16.8% and 24 mesh: 5.5%.

[0035] Preferably, the activated carbon in this embodiment is preferably made by burning Philippine coconut shells.

[0036] It should be noted that, in order to ensure the rebound effect of the rubber ring 3 , the rubber ring 3 in this embodiment is an elastic rubber ring, and the rubber ring 3 is attached to the inner circumferential wall of the filter tank 1 .

[0037] In actual settings, the rubber ring 3 is designed as an elastic rubber ring, which means that it has a certain elasticity and resilience, and can automatically restore to its original shape without external force. This helps to ensure that the two rubber rings 3 can automatically rebound after the filter assembly 6 is compacted, thereby compensating for the gap between the filter assembly 6 and ensuring that the two filter papers 5 are always tightly fitted to the upper and lower sides of the filter assembly 6.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A small gas filter canister, characterized in that: It comprises a filter tank (1), an end cover (2), two rubber rings (3), two filter plates (4), two filter papers (5) and a filter assembly (6); The end cover (2) is sleeved on the outside of the filter tank (1), the two rubber rings (3) are both arranged inside the filter tank (1), the two filter plates (4) are assembled on opposite sides of the two rubber rings (3), the two filter papers (5) are arranged on opposite sides of the two filter plates (4), and the filter assembly (6) is filled between the two filter papers (5); The rubber ring (3) on the upper side fits against the inner top wall of the end cover (2), so that the end cover (2) squeezes the two rubber rings (3) after being connected to the filter tank (1).

2. A small-sized gas filter canister according to claim 1, characterized in that: The top of the end cover (2) protrudes upward to form an exhaust chamber (7); The bottom of the filter tank (1) protrudes downward to form an air intake chamber (8).

3. A small-sized gas filter canister according to claim 2, characterized in that: An exhaust hole is provided at the top of the exhaust chamber (7), and a sealing plug (9) is interference-fitted inside the exhaust hole.

4. A small-sized gas filter canister according to claim 2, characterized in that: The bottom of the air intake chamber (8) is connected to an air intake pipe (10) for connecting to a gas mask; A sealing cover is threadedly connected to the outer side of the air inlet pipe (10).

5. A small-sized gas filter canister according to claim 1, characterized in that: The filter assembly (6) is an activated carbon layer; The filter assembly (6) is divided into a first filter layer (601), a second filter layer (602), a third filter layer (603), a fourth filter layer (604), a fifth filter layer (605) and a sixth filter layer (606) from bottom to top; The particle sizes of the first filter layer (601), the second filter layer (602), the third filter layer (603), the fourth filter layer (604), the fifth filter layer (605) and the sixth filter layer (606) are 12 mesh, 14 mesh, 16 mesh, 18 mesh, 20 mesh and 24 mesh respectively.

6. A small-sized gas filter canister according to claim 1, characterized in that: A plurality of filter holes are provided inside the filter plate (4).

7. A small-sized gas filter canister according to claim 1, characterized in that: The rubber ring (3) is an elastic rubber ring, and the rubber ring (3) is fitted on the inner peripheral wall of the filter tank (1).

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