CN219072421U

CN219072421U - Filter box and gas mask with air purification function

Info

Publication number: CN219072421U
Application number: CN202223516513.7U
Authority: CN
Inventors: 李永明
Original assignee: Guangzhou Taixing Safety Equipment Manufacturing Co ltd
Current assignee: Guangzhou Taixing Safety Equipment Manufacturing Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-05-26
Anticipated expiration: 2032-12-28

Abstract

The utility model relates to the technical field of gas mask, in particular to a gas mask which comprises a first shell and a second shell which are detachable, wherein a mounting sleeve is clamped between the first shell and the second shell, an active carbon filter material and a dustproof filter material are placed in the mounting sleeve, a first sealing ring and a second sealing ring are arranged at two ends of the mounting sleeve, the second sealing ring is detachable, the gas mask comprises a mask and a filter box, a connector is formed at the outer end of the first shell of the filter box, a second internal thread is formed at the connector, a second external thread is formed at the mask, the filter box and the mask are detachably connected through the second external thread and the second internal thread, and the gas mask with the gas purifying function has the function of air purification.

Description

Filter box and gas mask with air purification function

Technical Field

The utility model relates to the technical field of gas mask, in particular to a filter box and a gas mask with an air purifying function.

Background

The gas protection mask is a special labor protection article for protecting the respiratory system of personnel, and generally consists of a gas filtering box or a gas filtering tank and a face mask, wherein the face mask is used for isolating air and playing a role in sealing, and the gas filtering box or the gas filtering tank plays a role in filtering toxic gas and dust, so that the gas filtering box or the gas filtering tank plays a vital role in the gas protection mask.

The Chinese patent with publication number of CN213491632U discloses a multifunctional comprehensive anti-poison and dustproof poison filtering box, which comprises a box body, wherein the box body comprises a first shell and a second shell which are connected together, an active carbon filtering material and a dustproof filtering material are arranged in the first shell and the second shell, and the poison filtering mask manufactured by using the poison filtering box is suitable for occasions with relatively complex operation environment, high concentration of toxic and dusty gas and can improve the breathing safety of a user. Wherein, in order to avoid external poisonous gas to flow into the poison box through the gap between dustproof filter medium and the second casing, the gap between filter medium and the second casing is filled with the sealant, and in order to make first casing and second casing combine closely knit, first casing and second casing adopt ultrasonic welding's mode to link together.

However, because the setting of sealant and the connected mode between first casing and the second casing are ultrasonic welding, lead to active carbon filter media and dustproof filter media after scrapping, need change whole strain poison box, lead to the replacement cost higher.

Disclosure of Invention

In order to reduce the replacement cost of the filter box after the active carbon filter material and the dustproof filter material are scrapped, the application provides the filter box and the gas mask with the air purifying function.

In a first aspect, the present utility model provides a filter cartridge, which adopts the following technical scheme:

the utility model provides a filter cartridge, includes detachable first casing and second casing, first casing with press from both sides tightly between the second casing has the installation cover, be used for placing active carbon filter media and dustproof filter media in the installation cover, the both ends of installation cover are provided with first sealing ring and second sealing ring, first sealing ring is used for sealed active carbon filter media's outward flange, the second sealing ring is used for sealed dustproof filter media's outward flange, the second sealing ring can be dismantled.

Preferably, the first sealing ring is integrally configured on an inner wall of one end of the installation sleeve, the outer wall of the second sealing ring can be attached to an inner wall of one end of the installation sleeve, and the second shell abuts the second sealing ring on the outer edge of the dustproof filtering material.

Preferably, elastic sealing rings are respectively arranged between the first sealing ring and the active carbon filtering material and between the second sealing ring and the dustproof filtering material.

Preferably, the outer wall of the first shell is provided with a first external thread, the inner wall of the second shell is provided with a second internal thread, and the first shell and the second shell are detachably connected through the first external thread and the first internal thread.

Preferably, an annular flange is configured at the inner end of the second shell and is used for abutting against the second sealing ring, and the end face of the abutting end of the annular flange is an arc surface.

In a second aspect, the present utility model provides an anti-poison respirator having an air purifying function, which adopts the following technical scheme:

the utility model provides an gas protection gauze mask with air purification function, includes face guard and above-mentioned straining box, the outer end of straining box's first casing is constructed and is had the connector, the second internal thread has been seted up to the connector, the second external screw thread has been seted up to the face guard, strain the box with pass through between the face guard the second external screw thread with second internal screw thread detachably connects.

The beneficial effects of the utility model are as follows:

1. when the active carbon filter material and the dustproof filter material are scrapped, the scrapped active carbon filter material and the dustproof filter material can be quickly taken out of the mounting sleeve by disassembling the first shell and the second shell and further disassembling the second sealing ring, and then new active carbon filter material and dustproof filter material are put into the mounting sleeve without integral replacement, so that the replacement cost of the filter box is reduced;

2. the first sealing ring can prevent toxic gas from passing through a gap between the active carbon filtering material and the mounting sleeve, and the second sealing ring can prevent toxic gas from passing through a gap between the dustproof filtering material and the mounting sleeve;

3. the filter box is detachably connected with the mask, so that the filter box is convenient to replace, and the active carbon filter material and the dustproof filter material in the filter box enable the gas mask to have an air purifying effect.

Drawings

FIG. 1 is a cross-sectional view of a cartridge in an embodiment of the present application;

FIG. 2 is an exploded view of the structure of the cartridge in an embodiment of the present application;

fig. 3 is a left side view of fig. 2.

Reference numerals illustrate: 1. a first housing; 11. a mounting hole; 12. a connector; 2. a second housing; 21. a connection hole; 22. an annular flange; 3. a mounting sleeve; 4. an active carbon filtration material; 5. dustproof filtering material; 61. a first seal ring; 62. a second seal ring; 63. an elastic sealing ring; 7. and (5) air holes.

Detailed Description

The utility model will be further described with reference to figures 1-3 and examples.

The embodiment discloses a filter box.

Referring to fig. 1 to 3, the filter cartridge includes a first housing 1 and a second housing 2 which are detachable, air holes 7 are formed in the first housing 1 and the second housing 2, a mounting sleeve 3 is clamped between the first housing 1 and the second housing 2, an activated carbon filter material 4 and a dustproof filter material 5 are placed in the mounting sleeve 3, external air enters the filter cartridge through the air holes 7 of the second housing 2, passes through the dustproof filter material 5 and the activated carbon filter material 4 in sequence, and finally passes through the air holes 7 of the first housing 1 to allow a user to inhale purified air. Specifically, the first casing 1 and the second casing 2 are both cylindrical, the mounting sleeve 3 is in a circular ring structure, one end of the first casing 1 is provided with a hole, the hole is a mounting hole 11, the mounting hole 11 is a circular hole, and the inner diameter of the mounting hole 11 is the inner diameter of the first casing 1. The mounting hole 11 of the first housing 1 is used for placing the mounting sleeve 3, the outer wall of the mounting sleeve 3 is attached to the inner wall of the first housing 1, and in this embodiment, the end face of the inner end of the mounting sleeve 3 is attached to the end face of the inner end of the first housing 1, and the end face of the outer end of the mounting sleeve 3 is coplanar with the end face of the first housing 1 where the mounting hole 11 is provided. The outer wall of the first shell 1 is stepped along the axial direction to have two sections of external diameter sizes, and the external diameter of the end part of the first shell 1 provided with the mounting hole 11 is smaller, and the first external thread is provided at the end part of the first shell 1 with smaller external diameter. The connecting hole 21 has been seted up to the one end of second casing 2, and connecting hole 21 is the round hole, and the internal diameter of connecting hole 21 is the internal diameter of second casing 2 promptly, and connecting hole 21 of second casing 2 is used for being connected with first casing 1, and the second internal thread has been seted up at connecting hole 21 department to the inner wall of second casing 2. The first casing 1 and the second casing 2 are detachably connected through a first external thread and a first internal thread.

The both ends of the installation cover 3 are provided with a first sealing ring 61 and a second sealing ring 62, the first sealing ring 61 is used for sealing the outer edge of the active carbon filter material 4, the second sealing ring 62 is used for sealing the outer edge of the dustproof filter material 5, and the second sealing ring 62 is detachable. Specifically, the first sealing ring 61 and the second sealing ring 62 are both circular rings, the first sealing ring 61 is integrally formed on the inner wall of one end of the installation sleeve 3, one end face of the first sealing ring 61 is coplanar with the inner end of the installation sleeve 3, and the active carbon filter medium 4 and the dustproof filter medium 5 are sequentially placed into one end, far away from the first sealing ring 61, of the installation sleeve 3. The second sealing ring 62 is in interference fit with the mounting sleeve 3, so that the outer wall of the second sealing ring 62 can be attached to the inner wall of one end of the mounting sleeve 3. After the installation sleeve 3 is placed into the first casing 1 and the second casing 2 are in threaded connection, the second casing 2 abuts the second sealing ring 62 against the outer edge of the dustproof filter medium 5, abuts the first sealing ring 61 against the outer edge of the activated carbon filter medium 4, and clamps the installation sleeve 3 between the first casing 1 and the second casing 2. The first seal ring 61 can prevent toxic gas from passing through the gap between the activated carbon filter 4 and the mounting sleeve 3, and the second seal ring 62 can prevent toxic gas from passing through the gap between the dustproof filter 5 and the mounting sleeve 3. Further, the elastic sealing ring 63 is sandwiched between the first sealing ring 61 and the activated carbon filter medium 4 and between the second sealing ring 62 and the dust-proof filter medium 5, and the elastic sealing ring 63 has elasticity, so that the tightness between the first sealing ring 61 and the activated carbon filter medium 4 and the tightness between the second sealing ring 62 and the dust-proof filter medium 5 can be further improved. In addition, in the present embodiment, the length of the external thread of the first housing 1 is longer than the length of the internal thread of the second housing 2, so that the second housing 2 compresses the mounting sleeve 3, the first seal ring 61, and the second seal ring 62.

The inner end of the second housing 2 is provided with the annular flange 22 and is used for abutting against the second sealing ring 62, the end face of the abutting end of the annular flange 22 is an arc surface, and the annular flange 22 gradually presses against the second sealing ring 62 in the rotating process, so that the friction area between the annular flange 22 and the second sealing ring 62 can be reduced due to the arrangement of the arc surface of the annular flange 22, and the second housing 2 can be rotated conveniently.

Gaps are reserved between the dustproof filter medium 5 and the inner end of the second shell 2 and between the active carbon filter medium 4 and the first shell 1, so that air can circulate in the air holes 7 of the first shell 1 or the second shell 2 conveniently.

The embodiment also discloses an anti-poison mask with an air purifying function.

The gas mask with the air purification function comprises a mask and the filter box, the mask is not shown in the figure, the outer end of the first shell 1 of the filter box is provided with a connector 12, the connector 12 is provided with second internal threads, the mask is provided with second external threads, and the filter box is detachably connected with the mask through the second external threads and the second internal threads.

The implementation principle of the gas mask with the air purifying function of the filter box of the embodiment is as follows: when active carbon filter media 4 and dustproof filter media 5 scrap, through dismantling first casing 1 and second casing 2 and further dismantle second sealing ring 62, just can take out scrapped active carbon filter media 4 and dustproof filter media 5 from installation cover 3 fast, later put into installation cover 3 with new active carbon filter media 4 and dustproof filter media 5 again, need not whole change, reduced the replacement cost of filter cartridge, and detachably connects between filter cartridge and the face guard, the change of the filter cartridge of being convenient for, and active carbon filter media 4 and dustproof filter media 5 in the filter cartridge make this gas mask have air purification's effect.

The foregoing are preferred embodiments of the present utility model, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A filter cartridge, characterized in that: including detachable first casing (1) and second casing (2), first casing (1) with press from both sides tightly between second casing (2) and have installation cover (3), be used for placing active carbon filter media (4) and dustproof filter media (5) in installation cover (3), the both ends of installation cover (3) are provided with first sealing ring (61) and second sealing ring (62), first sealing ring (61) are used for sealing the outward flange of active carbon filter media (4), second sealing ring (62) are used for sealing the outward flange of dustproof filter media (5), second sealing ring (62) can be dismantled.

2. A cartridge as claimed in claim 1, wherein: the first sealing ring (61) is integrally formed on the inner wall of one end of the installation sleeve (3), the outer wall of the second sealing ring (62) can be attached to the inner wall of one end of the installation sleeve (3), and the second shell (2) is tightly abutted against the second sealing ring (62) on the outer edge of the dustproof filtering material (5).

3. A cartridge as claimed in claim 2, wherein: elastic sealing rings (63) are respectively arranged between the first sealing ring (61) and the active carbon filtering material (4) and between the second sealing ring (62) and the dustproof filtering material (5).

4. A cartridge as claimed in claim 1, wherein: the outer wall of the first shell (1) is provided with a first external thread, the inner wall of the second shell (2) is provided with a first internal thread, and the first shell (1) is detachably connected with the second shell (2) through the first external thread and the first internal thread.

5. A cartridge according to claim 3, wherein: an annular flange (22) is formed at the inner end of the second shell (2) and used for abutting against the second sealing ring (62), and the end face of the abutting end of the annular flange (22) is an arc surface.

6. An gas mask with air purification function, its characterized in that: the filter box comprises a mask and the filter box according to any one of claims 1 to 5, wherein a connector (12) is formed at the outer end of a first shell (1) of the filter box, a second internal thread is formed in the connector (12), a second external thread is formed in the mask, and the filter box is detachably connected with the mask through the second external thread and the second internal thread.