Air filter for dust working environment

Abstract

The utility model discloses an air filter used in dust working environment, which comprises an upper bottle body, a lower bottle body, an external thread pipe and an air outlet guide pipe, the two ends of the external thread pipe are respectively sleeved with the upper bottle body and the lower bottle body through threads, the top end of the upper bottle body is sleeved with a bottle cap through threads, the side edge of the bottle cap is provided with an air inlet, and the air inlet is communicated with the air outlet guide pipe. A cylindrical grid frame is connected into the bottle cap in a sleeved mode, the cylindrical grid frame is filled with a first thin steel wire filter screen, cover plates are fixed to the two ends of the cylindrical grid frame, an air inlet pipe opening is connected into the first thin steel wire filter screen in a sleeved mode, the air inlet pipe opening is communicated with an air inlet hard guide pipe, the air inlet hard guide pipe is communicated with an air inlet soft guide pipe, and the air inlet soft guide pipe is communicated with the bottle cap. The air outlet guide pipe penetrates through the bottle cap, the first thin steel wire filter screen and the two cover plates. The breathing mask is simple to manufacture, can well filter air, and guarantees breathing health of a user.

Description

Technical Field

[0001] The utility model relates to the technical field of air filters, in particular to an air filter for a dusty working environment. Background Art

[0002] When working in some working environments with high dust, dust poses great harm to the lungs of workers. Working in such an environment for a long time will lead to occupational diseases, such as sand and gravel mining sites, mine exploitation sites, cement handling, etc. Inevitably, there is a large amount of dust. Generally, workers still wear double-layer masks for protection, or a simple combination of masks and face shields, but their protection is limited, and workers still inhale a large amount of dust. Summary of the Invention

[0003] In order to better protect the operator, we propose an air filter for a dusty working environment to solve the disadvantages existing in the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] An air filter for a dusty working environment includes an upper bottle body, a lower bottle body, an external threaded pipe, and an air outlet conduit. The two ends of the external threaded pipe are respectively sleeved with the upper bottle body and the lower bottle body through threads. The top end of the upper bottle body is sleeved with a bottle cap through threads. An air inlet is opened on the side of the bottle cap. A cylindrical grid frame is sleeved inside the bottle cap. A first fine wire filter screen is filled inside the cylindrical grid frame. Covers are fixed at both ends of the cylindrical grid frame. An air inlet pipe opening is sleeved inside the first fine wire filter screen. The air inlet pipe opening is communicated with an air inlet hard conduit. The air inlet hard conduit is communicated with an air inlet soft conduit. The air outlet conduit penetrates through the bottle cap, the first fine wire filter screen, and the two covers, and the air outlet conduit is communicated with the inside of the upper bottle body. A water separation funnel is fixed inside the external threaded pipe. A first grid fixing plate is fixed at the bottom end of the water separation funnel. The air inlet soft conduit penetrates through and is fixed on the first grid fixing plate. A cylindrical shell is fixed inside the lower bottle body. Second grid fixing plates are fixed at both ends of the cylindrical shell. A second fine wire filter screen is filled inside the cylindrical shell. The air inlet soft conduit slidably penetrates through the second fine wire filter screen and the two second grid fixing plates.

[0006] Preferably, a nut is sleeved on the external threaded pipe through threads.

[0007] Preferably, two symmetrically arranged lifting lugs are fixed on the bottle cap.

[0008] Preferably, a water replenishing hole is opened on the side of the lower bottle body, and a plug is hermetically sleeved inside the water replenishing hole.

[0009] Preferably, the interior of the lower bottle body is filled with water, and the depth of the water is at the position of one-third of the height of the cylindrical shell.

[0010] Preferably, a sinker is fixedly sleeved at the bottom end of the air inlet flexible conduit.

[0011] The air outlet conduit is connected to a face mask. The face mask is a mature existing product and can be directly purchased. The filter can be hung on the waist or back of the operator.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, the interior of the lower bottle body is filled with water, and the depth of the water is at the position of one-third of the height of the cylindrical shell. So that after filling with water and when the whole is inverted, the water will not overflow from the first grid fixing plate. Connect the air outlet conduit to the air inlet end of the breathing face mask; rotate the lower bottle body, and the relative position of the lower bottle body and the external threaded tube can be adjusted through the threaded transmission relationship between the lower bottle body and the external threaded tube, so that the depth position of the bottom end of the air inlet flexible conduit in the water can be adjusted; after the lower bottle body and the external threaded tube are adjusted in place, rotate the nut to the lowest position and abut it against the lower bottle body;

[0014] 2. In the present utility model, when inhaling, the air outlet conduit extracts air from the upper bottle body to form a negative pressure. At this time, the air inlet flexible conduit can be indirectly made to form a negative pressure. In this way, the external gas passes through the first fine wire mesh filter to filter dust and then enters the water through the air inlet pipe orifice, the air inlet rigid conduit, and the air inlet flexible conduit in sequence. The gas is dispersed again through the second fine wire mesh filter to turn large air bubbles into small air bubbles, so that the dust can be well dissolved in the water for water washing dust removal. The filtered and cleaned air passes through the first grid fixing plate and then is inhaled by the user through the water separating funnel, the upper bottle body, and the air outlet conduit in sequence; the hanging ears facilitate the overall suspension; the water replenishing hole is used to replenish water, and after replenishment, it is sealed with a plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a cross-sectional view of an air filter for a dust working environment proposed by the present utility model;

[0016] Figure 2 is Figure 1 a partial structural schematic diagram of

[0017] Figure 3 is a schematic diagram of the installation structure of the first fine wire mesh filter of an air filter for a dust working environment proposed by the present utility model;

[0018] Figure 4 is a structural schematic diagram of the cylindrical grid frame of an air filter for a dust working environment proposed by the present utility model;

[0019] Figure 5Schematic diagram of the installation structure of the second fine steel wire filter screen of an air filter for a dust working environment proposed by the present utility model;

[0020] Figure 6 Schematic diagram of the structure of the second grid fixing plate of an air filter for a dust working environment proposed by the present utility model;

[0021] Figure 7 Schematic diagram of the structure of the first grid fixing plate of an air filter for a dust working environment proposed by the present utility model.

[0022] In the figure: 1 upper bottle body, 2 lower bottle body, 3 external threaded pipe, 4 intake hard conduit, 5 intake soft conduit, 6 weight, 7 water, 8 cylindrical shell, 9 water separation funnel, 10 bottle cap, 11 intake pipe opening, 12 intake port, 13 first fine steel wire filter screen, 14 outlet conduit, 15 lifting lug, 16 nut, 17 first grid fixing plate, 18 second fine steel wire filter screen, 19 second grid fixing plate, 20 cylindrical grid frame, 21 cover plate, 22 water replenishing hole, 23 plug. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0024] Referring to Figures 1-7 , an air filter for a dust working environment includes an upper bottle body 1, a lower bottle body 2, an external threaded pipe 3, and an outlet conduit 14. The two ends of the external threaded pipe 3 are respectively sleeved with the upper bottle body 1 and the lower bottle body 2 through threads. The top of the upper bottle body 1 is sleeved with a bottle cap 10 through threads. An intake port 12 is provided on the side of the bottle cap 10. A cylindrical grid frame 20 is sleeved inside the bottle cap 10. The inside of the cylindrical grid frame 20 is filled with a first fine steel wire filter screen 13. Cover plates 21 are fixed at both ends of the cylindrical grid frame 20. An intake pipe opening 11 is sleeved inside the first fine steel wire filter screen 13. The intake pipe opening 11 is communicated with an intake hard conduit 4. The intake hard conduit 4 is communicated with an intake soft conduit 5. The outlet conduit 14 penetrates through the bottle cap 10, the first fine steel wire filter screen 13, and the two cover plates 21. The outlet conduit 14 is communicated with the inside of the upper bottle body 1. A water separation funnel 9 is fixed inside the external threaded pipe 3. A first grid fixing plate 17 is fixed at the bottom end of the water separation funnel 9. The intake soft conduit 5 penetrates through and is fixed on the first grid fixing plate 17. A cylindrical shell 8 is fixed inside the lower bottle body 2. Second grid fixing plates 19 are fixed at both ends of the cylindrical shell 8. The inside of the cylindrical shell 8 is filled with a second fine steel wire filter screen 18. The intake soft conduit 5 slidably penetrates through the second fine steel wire filter screen 18 and the two second grid fixing plates 19.

[0025] Referring to Figure 1, a nut 16 is sleeved on the external thread pipe 3 through threads. When the lower bottle body 2 and the external thread pipe 3 are adjusted in place, the nut 16 is rotated to the lowermost position and abuts against the lower bottle body 2.

[0026] Refer to Figure 2 , two symmetrically arranged lifting lugs 15 are fixed on the bottle cap 10, and the two lifting lugs 15 facilitate the whole to be hung on the user's neck.

[0027] Refer to Figure 1 , a water replenishing hole 22 is formed in the side of the lower bottle body 2, a plug 23 is hermetically sleeved in the water replenishing hole 22, the inside of the lower bottle body 2 is filled with water 7, the depth of the water 7 is at the position of one-third of the height of the cylindrical shell 8, the bottom end of the air inlet soft catheter 5 is fixedly sleeved with a sinker 6, and the sinker 6 is used to prevent the air inlet soft catheter 5 from floating and affecting the use, so as to ensure the stability of gas cleaning.

[0028] The air outlet conduit 14 is connected to a face mask. The face mask is not shown in the drawings. The face mask is an existing mature product and can be directly purchased; the filter can be hung on the operator's waist or back, which is convenient for the operator to work in a high-dust working environment.

[0029] Working principle: During use, the inside of the lower bottle body 2 is filled with water 7, and the depth of the water 7 is at the position of one-third of the height of the cylindrical shell 8, so that when the whole is inverted after filling with water, the water will not overflow from the first grid fixing plate 17. Connect the air outlet conduit 14 to the air inlet end of the breathing face mask; rotate the lower bottle body 2, and the relative positions of the lower bottle body 2 and the external thread pipe 3 can be adjusted through the thread transmission relationship between the lower bottle body 2 and the external thread pipe 3, so that the depth position of the bottom end of the air inlet soft catheter 5 in the water 7 can be adjusted; when the lower bottle body 2 and the external thread pipe 3 are adjusted in place, the nut 16 is rotated to the lowermost position and abuts against the lower bottle body 2;

[0030] When inhaling, the air outlet conduit 14 extracts air from the upper bottle body 1 to form a negative pressure. At this time, the air inlet soft catheter 5 can be indirectly made to form a negative pressure. In this way, the external gas passes through the first fine wire filter screen 13 to filter dust and then passes through the air inlet pipe orifice 11, the air inlet hard catheter 4, and the air inlet soft catheter 5 into the water 7 in sequence. The gas is dispersed again through the second fine wire filter screen 18 to turn large air bubbles into small air bubbles, so that the dust can be well dissolved in the water for water washing dust removal. The filtered and cleaned air passes through the first grid fixing plate 17 and then passes through the water separating funnel 9, the upper bottle body 1, and the air outlet conduit 14 in sequence and is inhaled by the user; the lifting lugs 15 facilitate the whole to be hung; the water replenishing hole 22 is used to replenish water, and after replenishment, it is sealed by the plug 23.

[0031] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. An air filter for a dusty working environment, comprising an upper bottle body (1), a lower bottle body (2), an external threaded pipe (3), and an air outlet conduit (14), characterized in that, Both ends of the external thread tube (3) are threadedly sleeved with an upper bottle body (1) and a lower bottle body (2) respectively. The top end of the upper bottle body (1) is threadedly sleeved with a bottle cap (10). An air inlet (12) is formed on the side of the bottle cap (10). A cylindrical grid frame (20) is sleeved inside the bottle cap (10). A first fine wire filter screen (13) is filled inside the cylindrical grid frame (20). Covers (21) are fixed at both ends of the cylindrical grid frame (20). An air inlet pipe orifice (11) is sleeved inside the first fine wire filter screen (13). The air inlet pipe orifice (11) is communicated with an air inlet hard conduit (4). The air inlet hard conduit (4) is communicated with an air inlet soft conduit (5). An air outlet conduit (14) penetrates through the bottle cap (10), the first fine wire filter screen (13) and the two covers (21). The air outlet conduit (14) is communicated with the inside of the upper bottle body (1). A water separation funnel (9) is fixed inside the external thread tube (3). A first grid fixing plate (17) is fixed at the bottom end of the water separation funnel (9). The air inlet soft conduit (5) penetrates through and is fixed on the first grid fixing plate (17). A cylindrical shell (8) is fixed inside the lower bottle body (2). Second grid fixing plates (19) are fixed at both ends of the cylindrical shell (8). A second fine wire filter screen (18) is filled inside the cylindrical shell (8). The air inlet soft conduit (5) slidably penetrates through the second fine wire filter screen (18) and the two second grid fixing plates (19).

2. The air filter for a dust working environment according to claim 1, wherein A nut (16) is threadedly sleeved on the external thread tube (3).

3. The air filter for a dust working environment according to claim 1, characterized in that, Two symmetrically arranged lifting lugs (15) are fixed on the bottle cap (10).

4. The air filter for a dust working environment according to claim 1, wherein A water replenishing hole (22) is formed on the side of the lower bottle body (2). A plug (23) is hermetically sleeved inside the water replenishing hole (22).

5. An air filter for a dust working environment according to claim 1, characterized in that, A weight (6) is fixedly sleeved at the bottom end of the air inlet soft conduit (5).

6. An air filter for a dusty working environment according to any one of claims 1-5, characterized in that, The inside of the lower bottle body (2) is filled with water (7). The depth of the water (7) is at the position of one-third of the height of the cylindrical shell (8).

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