Multifunctional respirator capable of filtering particulate matters

Abstract

The utility model discloses a multifunctional respirator capable of filtering particulate matters, which comprises an oral-nasal mask, an elastic bandage is fixed on the oral-nasal mask; the connector is provided with two groups of gas channels in the axis direction, and the two gas channels are communicated through a communicating hole; the switching assembly comprises an annular groove formed in the connector, a switching plate is rotationally connected into the annular groove, a switching hole and two sets of via holes are formed in the switching plate, and a positioning assembly is arranged between the switching plate and the connector; the blowing nozzle is detachably connected to the end, located on the inner side of the mouth-nose mask, of the connector; the two sets of filter heads are both installed at the end, located outside the mouth-nose mask, of the connector, and the communicating hole is formed between the blowing nozzle and the switching plate. When the filter head is replaced, a user can adopt a single filter head to filter gas, so that the user is prevented from directly breathing air in the process of replacing the filter head, and respiratory tract infection is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of respiratory health, in particular to a multifunctional respirator capable of filtering particulate matter. Background Art

[0002] In recent years, due to industrial production, motor vehicle exhaust emissions, urban construction and other human activities, air particulate matter has become the main pollutant in the air environment of cities around the world and in my country, causing huge adverse effects on human health. For people with impaired respiratory function, it will cause more significant damage. Currently, there are few oral and nasal masks that can filter out particulate matter specifically for people with impaired respiratory function. Existing assisted breathing devices are an effective means of artificially replacing the function of autonomous ventilation and are commonly used in respiratory failure, respiratory management, supportive treatment and emergency resuscitation. However, home assisted breathing machines often have problems such as single function, difficulty in carrying, and easy folding of the exhalation tube. Therefore, there is a need for a particulate matter filter respirator suitable for people with impaired respiratory function. Utility Model Content

[0003] The purpose of the utility model is to provide a multifunctional respirator capable of filtering particulate matter, so as to solve the problems existing in the prior art.

[0004] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides a multifunctional respirator capable of filtering particulate matter, comprising:

[0005] An oronasal mask, wherein an elastic strap is fixed on the upper portion of the oronasal mask;

[0006] A connector, the connector being disposed in the middle of the oronasal mask and passing through and being fixed to the oronasal mask, the connector being provided with two sets of gas passages along the axial direction, the two gas passages being connected via a connecting hole;

[0007] A switching assembly, the switching assembly including an annular groove provided on the connecting head, the annular groove being located outside the oral and nasal mask, a switching plate being rotatably connected in the annular groove, the switching plate being an annular structure, a switching hole and two groups of through holes being provided on the switching plate, the two groups of through holes and the switching hole being arranged corresponding to the gas passage, and an isosceles right triangle structure being arranged between the two groups of through holes and the gas passage, a positioning assembly being provided between the switching plate and the connecting head;

[0008] A mouthpiece, the mouthpiece being detachably connected to one end of the connector located inside the oronasal mask;

[0009] Filter heads, wherein two groups of filter heads are provided, and both groups of filter heads are installed at one end of the connector located outside the oronasal mask, and are respectively provided correspondingly between the two gas channels;

[0010] Wherein, the communicating hole is arranged between the blowing nozzle and the switching plate.

[0011] According to the multifunctional respirator capable of filtering particulate matter provided by the present invention, four groups of positioning components are circumferentially and evenly spaced on the bottom wall of the annular groove, the positioning component includes a mounting groove provided on the bottom of the annular groove, a connecting seat is slidably connected in the mounting groove, a positioning ball is rotatably connected to the connecting seat, a positioning groove is provided on the inner wall of the switching plate, the positioning ball is limitedly engaged with the positioning groove, and a spring is fixedly connected between the connecting seat and the mounting groove.

[0012] According to the multifunctional respirator capable of filtering particulate matter provided by the present invention, an inner groove is provided at one end of the connector located inside the mouth and nose mask along the axial direction, an inner thread is provided on the side wall of the inner groove, and the mouthpiece is threadedly engaged with the inner groove.

[0013] According to the multifunctional respirator capable of filtering particulate matter provided by the present invention, the connecting head is fixedly connected to one end outside the mouth and nose mask with two connecting covers, the connecting covers are threadedly connected to the filter head, and connecting holes are provided on the connecting covers, and the connecting holes on the two connecting covers are respectively connected to the two groups of gas channels.

[0014] According to the multifunctional respirator capable of filtering particulate matter provided by the present invention, the filter head includes a shell, a first filter layer, a second filter layer and a drying layer are sequentially arranged in the shell along the air inlet direction, and the shell is threadedly connected to the connecting cover.

[0015] According to the multifunctional respirator capable of filtering particulate matter provided by the present invention, a length adjustment buckle is installed on the elastic strap.

[0016] The utility model discloses the following technical effects:

[0017] When the present invention is in use, both sets of filter heads are installed on the end portion of the connector outside the mouth and nose mask, the mouth and nose mask is worn on the user's head through an elastic strap, the mouth and nose breathe air through the mouthpiece, the two sets of through holes on the switching plate are connected to the gas channels, and the gas is filtered through the filter heads. After a certain period of time, the filter heads need to be replaced, and at this time, the switching plate is rotated so that the switching hole on the switching plate is connected to one of the gas channels for normal gas exchange, and the other gas channels are in a closed state. At this time, the filter head can be removed for replacement, and then the switching plate is rotated to replace the next filter head. In this way, the user can use a single filter head for gas filtering when replacing the filter head, avoiding the user directly breathing air during the filter head replacement process and causing respiratory tract infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic structural diagram of the multifunctional respirator capable of filtering particulate matter of the present invention;

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a schematic diagram of the connection relationship between the connector and the mouthpiece of the utility model;

[0022] Figure 4 This is a schematic diagram of the connection relationship between the connector and the filter head of the utility model;

[0023] Figure 5 This is a schematic diagram of the connection relationship between the connector and the switch board of the utility model;

[0024] Figure 6 This is a schematic structural diagram of the length adjustment buckle of the utility model.

[0025] Among them, 1. Oral and nasal mask; 2. Elastic strap; 3. Gas channel; 4. Connecting hole; 5. Annular groove; 6. Switching plate; 7. Through hole; 8. Switching hole; 9. Mouthpiece; 10. Mounting groove; 11. Connecting seat; 12. Positioning ball; 13. Positioning groove; 14. Spring; 15. Connecting cover; 16. Connecting hole; 17. Shell; 18. First filter layer; 19. Second filter layer; 20. Drying layer; 21. Length adjustment buckle; 23. Connector. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0028] Reference Figures 1-6 The utility model provides a multifunctional respirator capable of filtering particulate matter, comprising:

[0029] An oronasal mask 1, with an elastic strap 2 fixed on the upper portion of the oronasal mask 1;

[0030] The connector 23 is disposed in the middle of the oronasal mask 1 and passes through and is fixed to the oronasal mask 1. Two sets of gas channels 3 are opened on the connector 23 along the axial direction, and the two gas channels 3 are connected through a connecting hole 4;

[0031] The switching assembly includes an annular groove 5 provided on the connector 23. The annular groove 5 is located outside the oronasal mask 1. A switching plate 6 is rotatably connected in the annular groove 5. The switching plate 6 is an annular structure. A switching hole 8 and two groups of through holes 7 are provided on the switching plate 6. The two groups of through holes 7 and the switching hole 8 are arranged corresponding to the gas channel 3, and the two groups of through holes 7 and the gas channel 3 are arranged in an isosceles right triangle structure. A positioning assembly is provided between the switching plate 6 and the connector 23.

[0032] The mouthpiece 9 is detachably connected to one end of the connector 23 located inside the oronasal mask 1;

[0033] Filter heads, there are two groups of filter heads, both groups of filter heads are installed on one end of the connector 23 outside the mouth and nose mask 1, and are respectively set correspondingly between the two gas channels 3;

[0034] The communicating hole 4 is provided between the blowing nozzle 9 and the switching plate 6 .

[0035] When the present invention is in use, both sets of filter heads are installed on the end of the connecting head 23 outside the mouth and nose mask 1, and the mouth and nose mask 1 is worn on the user's head through the elastic strap 2. The mouth and nose are breathed through the mouthpiece 9. The two sets of through holes 7 on the switching plate 6 are connected with the gas channel 3, and the gas is filtered through the filter head. After a certain period of time, the filter head needs to be replaced. At this time, the switching plate 6 is rotated so that the switching hole 8 on the switching plate 6 is connected with one of the gas channels 3 for normal gas exchange, and the other gas channel 3 is in a closed state. At this time, the filter head can be removed for replacement, and then the switching plate 6 is rotated to replace the next filter head. In this way, the user can use a single filter head for gas filtering when replacing the filter head, avoiding the user from directly breathing air during the filter head replacement process to cause respiratory infection.

[0036] To further optimize the solution, four groups of positioning components are arranged at equal intervals on the bottom wall of the annular groove 5. The positioning components include a mounting groove 10 opened on the bottom of the annular groove 5, a connecting seat 11 is slidably connected in the mounting groove 10, and a positioning ball 12 is rotatably connected to the connecting seat 11. A positioning groove 13 is opened on the inner wall of the switching plate 6, and the positioning ball 12 is limitedly engaged with the positioning groove 13. A spring 14 is fixedly connected between the connecting seat 11 and the mounting groove 10.

[0037] There are four groups of positioning components to avoid rotation between the switching plates 6. At the same time, it should be noted that arc transitions are provided on both sides of the positioning grooves 13 to ensure that the positioning balls 12 can slide out of the positioning grooves 13 smoothly. The four groups of positioning grooves 13 are arranged in a cross shape, wherein the two groups of positioning grooves 13 on the same straight line are on the same straight line with the two through holes 7, and the switching hole 8 and the other two groups of positioning grooves 13 are on the same straight line.

[0038] As a further optimization solution, an inner groove is provided at one end of the connector 23 located inside the oral and nasal mask 1 along the axial direction, an inner thread is provided on the side wall of the inner groove, and the mouthpiece 9 is threadedly matched with the inner groove.

[0039] In a further optimized solution, the end of the connector 23 located outside the oronasal mask 1 is fixedly connected to two connecting caps 15, which are threadedly connected to the filter head. The connecting caps 15 are provided with connecting holes 16, which are connected to the two sets of gas channels 3 respectively. The connecting caps 15 and the housing 17 are threadedly engaged to facilitate disassembly and replacement.

[0040] According to a further optimized solution, the filter head includes a shell 17 , in which a first filter layer 18 , a second filter layer 19 and a drying layer 20 are sequentially arranged along the air inlet direction, and the shell 17 is threadedly connected to the connecting cover 15 .

[0041] In this embodiment, the filter head is made of two layers, and a drying layer 20 is provided in the inner layer to absorb exhaled water vapor and prevent the formation of water mist in the oral and nasal mask 1.

[0042] In a further optimized solution, a length adjustment buckle 21 is installed on the elastic strap 2. The length adjustment buckle 21 can be provided to adaptively adjust the length of the elastic strap 2 so that the strap can be suitable for different users. The length adjustment buckle 21 adopts existing technology and is not specifically limited in this embodiment.

[0043] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0044] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A multifunctional respirator capable of filtering particulate matter, characterized in that: include: An oronasal mask (1), wherein an elastic strap (2) is fixed on the upper portion of the oronasal mask (1); A connector (23), the connector (23) being arranged in the middle of the oronasal mask (1), passing through the oronasal mask (1) and being fixed to the oronasal mask (1), the connector (23) being provided with two groups of gas passages (3) along the axial direction, the two gas passages (3) being connected via a connecting hole (4); A switching assembly, the switching assembly comprising an annular groove (5) provided on the connecting head (23), the annular groove (5) being located outside the oral and nasal mask (1), a switching plate (6) being rotatably connected in the annular groove (5), the switching plate (6) being an annular structure, a switching hole (8) and two groups of through holes (7) being provided on the switching plate (6), the two groups of through holes (7) and the switching hole (8) being arranged corresponding to the gas passage (3), and an isosceles right triangle structure being arranged between the two groups of through holes (7) and the gas passage (3), and a positioning assembly being provided between the switching plate (6) and the connecting head (23); A mouthpiece (9), the mouthpiece (9) being detachably connected to one end of the connector (23) located on the inner side of the oral and nasal mask (1); Filter heads, wherein two groups of filter heads are provided, and both groups of filter heads are installed at one end of the connector (23) located outside the oral and nasal mask (1), and are respectively provided correspondingly between the two gas passages (3); Wherein, the communicating hole (4) is arranged between the blowing nozzle (9) and the switching plate (6).

2. A multifunctional respirator capable of filtering particulate matter according to claim 1, characterized in that: The positioning assembly is provided with four groups of circumferentially equidistantly arranged on the bottom wall of the annular groove (5), and the positioning assembly includes a mounting groove (10) provided on the bottom of the annular groove (5), a connecting seat (11) is slidably connected in the mounting groove (10), a positioning ball (12) is rotatably connected to the connecting seat (11), a positioning groove (13) is provided on the inner wall of the switching plate (6), the positioning ball (12) and the positioning groove (13) are limitedly engaged, and a spring (14) is fixedly connected between the connecting seat (11) and the mounting groove (10).

3. The multifunctional respirator capable of filtering particulate matter according to claim 1, characterized in that: An inner groove is provided at one end of the connector (23) located inside the oral and nasal mask (1) along the axial direction, an inner thread is provided on the side wall of the inner groove, and the mouthpiece (9) is threadedly engaged with the inner groove.

4. The multifunctional respirator capable of filtering particulate matter according to claim 1, characterized in that: One end of the connector (23) located outside the oral and nasal mask (1) is fixedly connected to two connector covers (15), the connector covers (15) are threadedly connected to the filter head, and a connector hole (16) is provided on the connector cover (15), and the connector holes (16) on the two connector covers (15) are respectively connected to the two groups of gas channels (3).

5. The multifunctional respirator capable of filtering particulate matter according to claim 4, characterized in that: The filter head comprises a shell (17), wherein a first filter layer (18), a second filter layer (19) and a drying layer (20) are sequentially arranged in the shell (17) along the air intake direction, and the shell (17) is threadedly connected to the connection cover (15).

6. The multifunctional respirator capable of filtering particulate matter according to claim 1, characterized in that: A length adjustment buckle (21) is installed on the elastic binding belt (2).

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