CN111888612B

CN111888612B - Improved structure of automatic water injection and humidification chamber

Info

Publication number: CN111888612B
Application number: CN201910372904.XA
Authority: CN
Inventors: 熊道存; 王旭祥; 蔡宜珍
Original assignee: Ningbo Besmed Medical Equipment Corp
Current assignee: Ningbo Besmed Medical Equipment Corp
Priority date: 2019-05-06
Filing date: 2019-05-06
Publication date: 2022-10-28
Anticipated expiration: 2039-05-06
Also published as: CN111888612A

Abstract

An improved structure of automatic water injection humidifying chamber comprises a cover body, an extension pipe, a floater, a sealing element and a heated plate; the inside of the cover body is provided with a plurality of air flue clapboards, the extension pipe is integrally formed at the inner side of the cover body, and the extension pipe is provided with a plurality of positioning blocks; the floater is a hollow container with a plurality of concave parts, the center of the floater is provided with an extension part, the top end of the extension part is provided with a plurality of clamping hooks, and the sealing element can be fixed at the top end of the extension part; the heated plate is positioned below the cover body and seals the cover body to form a cavity space; the extending part is suspended on the extending pipe through the clamping hook and the positioning block, the air passage partition plate and the concave part form at least two complex air passages in the cavity space, and the outer side surface of the floater and the wall surface of the cover body form at least two annular air passages in the cavity space.

Description

Improved structure of automatic water injection and humidification chamber

The technical field is as follows:

the invention relates to a humidifying chamber, especially a structural improvement of an automatic water injection humidifying chamber.A floater (Float) is arranged in the humidifying chamber and is suspended on a cover body of the humidifying chamber, so that the bottom of the floater can not contact a heated plate of the humidifying chamber; during humidification, the humidification chamber can be replenished with liquid, the float can rise and fall along with the Water level, and when the float blocks a Water inlet (Water inlet) of the humidification chamber, the humidification chamber can stop replenishing liquid so as to control the Water level of the humidification chamber.

Background art:

a first prior art such as US patent No. 20160199614, the main disclosed technology being a float retaining device for a humidification chamber, a primary float (116) being connected to a linkage arm (coupling arm 118), the primary float (116) moving a push rod (push rod 124) via the linkage arm (118) to actuate a primary valve (primary valve 112); the pushrod (124) including a lower end portion (128) pivotally connected to the connecting arm (118) and an upper end portion (126), the upper end portion (126) including a valve body (130), the valve body (130) directly or indirectly engageable with a first valve seat (132) to close the main valve (112) and prevent water from entering the humidification chamber (100) through the main valve (112); the valve body (130) may also be disengaged from the first valve seat (132) to open the primary valve (112) and allow water to enter the humidification chamber (100); a supply tube (150) is connected at one end to a water inlet (108), the other end of the supply tube (150) being connected to an adapter for connecting the supply tube (150) to a source of water, the adapter may be in the form of a hydroentangle (152), the hydroentangle (152) serving as a retaining means for the primary float (116). The first prior art is not easy to assemble and is costly, and thus there is still a need for improvement of the first prior art.

A second prior art, as disclosed in U.S. publication No. US7722016, is primarily a humidifier chamber having a float with a seal movable into and out of a valve seat to seal an inlet when the water level in the chamber exceeds a first level and to open the inlet when the water level in the chamber is below the first level, the float having spaced ribs (stand-off ribs 94) to prevent the lower end of the float from contacting a heat conductive plate. When the humidification chamber water level is too low, the spacer ribs (94) of the float may still contact the heat transfer plate. The spacing ribs (94) of the float may still contact the heat transfer plate when the water inlet no longer replenishes water into the humidification chamber (e.g., a water reservoir connected to the water inlet is empty of water). Therefore, there is still a need for improvement in the second prior art.

The invention content is as follows:

in view of the above-mentioned drawbacks and needs of the prior art, it is an object of the present invention to provide an improved structure of an automatic water-filling humidifying chamber, which includes a cover, an extension pipe, a float, a sealing member and a heat-receiving plate; the inner part of the cover body is provided with a plurality of air passage clapboards, the extension pipe is integrally formed at the inner side of the cover body, and the extension pipe is provided with a plurality of positioning blocks; the floater is a hollow container with a plurality of concave parts, the center of the floater is provided with an extension part, the top end of the extension part is provided with a plurality of clamping hooks, and the sealing element can be fixed at the top end of the extension part; the heated plate is positioned below the cover body and seals the cover body to form a cavity space; the extending part is suspended on the extending pipe through the clamping hook and the positioning block, the air passage partition plate and the concave part form at least two complex air passages in the cavity space, and the outer side surface of the floater and the wall surface of the cover body form at least two annular air passages in the cavity space.

The invention has the advantages that the extending part of the floater is directly combined with the extending pipe of the cover body, and the extending part is directly suspended on the extending pipe, namely, the extending pipe of the cover body can be used as a retaining device of the floater, so that the bottom of the floater forms a distance with the heated plate; therefore, the present invention is easy to assemble and can reduce the cost.

The invention has the advantages that when a gas enters the chamber space, the complex air passage can increase the residence time of the gas, and the annular air passage can guide the moisture in the chamber space, so that the gas and the moisture are fully mixed.

The invention has the beneficial effects that (III) the plurality of concave parts are symmetrically arranged on the floater, and the plurality of air passage partition plates are symmetrically arranged in the cover body; therefore, the assembly of the floater and the cover body has the foolproof function; because the assembly of the float and the cover body has the fool-proof function, the air inlet of the cover body and the air outlet of the cover body also have the fool-proof function, namely, the air inlet and the air outlet can be used interchangeably, and a user does not need to distinguish the air inlet from the air outlet.

The features, technical means, specific functions and specific embodiments of the present invention are described in detail with reference to the drawings and the accompanying drawings.

Description of the drawings:

FIG. 1 is a perspective view of a preferred embodiment of the present invention.

FIG. 2 is a partially exploded perspective view of the preferred embodiment of the present invention.

Fig. 3 is a perspective exploded view of the cover and the upper cover of the present invention.

Fig. 4 is a perspective view of the upper cover of the present invention.

Fig. 5 is a perspective exploded view of the sealing member and the fixing base of the present invention.

Fig. 6 is a perspective exploded view of the float, seal and anchor of the present invention.

Fig. 7 is a perspective view of the float, seal and anchor of the present invention.

Fig. 8 and 9 are perspective views of the cover of the present invention.

Fig. 10 isbase:Sub>A sectional view frombase:Sub>A-base:Sub>A of fig. 1.

Fig. 11 is a sectional view of fig. 1 taken along line B-B.

Fig. 12 is a cross-sectional view through C-C of fig. 1.

Fig. 13 is a partially enlarged view of fig. 12.

FIG. 14 is a schematic diagram illustrating the operation of the preferred embodiment of the present invention.

Fig. 15 is a partially enlarged view of fig. 14.

Fig. 16 is a perspective view of a cover of a second embodiment of the present invention.

The specific implementation mode is as follows:

referring to fig. 1 to 7, in the preferred embodiment, the improved structure of the humidification chamber of the present invention includes a housing 10, an extension pipe 20, a float 30, a sealing member 40 and a heated plate 50; the mask body 10 has a water inlet 11, an air inlet 12 and an air outlet 13, and the mask body 10 has a plurality of air passage partitions 16 inside; the extension pipe 20 is integrally formed inside the housing 10, the extension pipe 20 is located corresponding to the water inlet 11, and the extension pipe 20 has a plurality of positioning blocks 23; the float 30 is a hollow container, the float 30 has a plurality of recesses 36, the center of the float 30 has an extension 31 (for example, but not limited to, the plurality of recesses 36 are distributed on the same side of the float 30, and the plurality of recesses 36 surround the extension 31), the top 311 of the extension 31 has a plurality of hooks 33; the sealing member 40 can be fixed to the top end 311 of the extension 31, and the sealing member 40 is located below the water inlet 11; the heated plate 50 is located under the mask 10, and the heated plate 50 seals the mask 10 to form a chamber space 51 (also refer to FIG. 12); wherein the extension 31 of the float 30 can partially penetrate into the extension pipe 20, the extension 31 can be suspended from the extension pipe 20 by the plurality of hooks 33 and the plurality of positioning blocks 23, so that a distance is formed between the bottom of the float 30 and the heated plate 50; the air duct partition 16 partially extends into the recess 36, and the air duct partition 16 and the recess 36 form at least two complex air ducts A1 in the chamber space 51 (please refer to fig. 10 and 11 at the same time); the outer side surface 301 of the float 30 and the wall surface 103 of the housing 10 form at least two annular air passages A2 in the chamber space 51 (see fig. 10 and 11); when the water level in the chamber space 51 makes the float 30 rise to the point where the sealing member 40 blocks an inlet hole 110 of the inlet port 11, the inlet port 11 stops injecting the liquid; when the water level in the chamber space 51 lowers the float 30 until the sealing member 40 leaves the inlet hole 110, the inlet 11 is refilled with the liquid (see fig. 12 and 14 simultaneously).

The combination of the float 30 and the housing 10 will be described as follows: the float 30 is composed of an upper shell 30a and a lower shell 30b, the extension 31 is located on the upper shell 30a, the plurality of concave portions 36 are symmetrically disposed on the upper shell 30a (for example, a plurality of hollow convex portions 361 are symmetrically disposed on the upper shell 30a, and adjacent convex portions 361 can form a concave portion 36), and the plurality of air channel partition plates 16 are symmetrically disposed inside the cover 10; thus, the assembly of the float 30 and the cover 10 has foolproof effect. Such foolproof effects are exemplified by, but not limited to: when the float 30 and the cover 10 rotate ninety degrees relatively, because the plurality of concave portions 36 are symmetrically disposed on the upper housing 30a and the plurality of airway partitions 16 are symmetrically disposed inside the cover 10, the airway partitions 16 of the cover 10 can also partially extend into the concave portions 36; when the float 30 and the mask body 10 rotate one hundred eighty degrees relatively, because the plurality of concave portions 36 are symmetrically disposed on the upper shell 30a and the plurality of airway partitions 16 are symmetrically disposed inside the mask body 10, the airway partitions 16 of the mask body 10 can also partially extend into the concave portions 36; when the float 30 and the mask body 10 rotate two hundred seventy degrees relatively, because the plurality of concave portions 36 are symmetrically disposed on the upper shell 30a and the plurality of airway partitions 16 are symmetrically disposed inside the mask body 10, the airway partitions 16 of the mask body 10 may also partially extend into the concave portions 36.

The following explains the function of the lower case 30 b: the lower housing 30b may be a shallow dish type structure to prevent the height of the cage 10 from increasing, and the lower housing 30b has a large sectional area due to the shallow dish type structure of the lower housing 30b to lift the buoyancy of the float 30.

Referring to fig. 12 to 15, the suspension of the float 30 is described as follows: the plurality of hooks 33 surround the outer side of the sealing element 40, and each hook 33 is connected to the top end 311 of the extension portion 31; the positioning blocks 23 block the hooks 33 from being separated from the extension pipe 20, and the float 30 can be suspended from the extension pipe 20 so that the bottom 35 of the float 30 does not contact the heated plate 50.

The combination of the extension 31 of the float 30 and the extension pipe 20 will be described as follows: each positioning block 23 further has an inclined surface 231, and when the extension 31 of the float 30 penetrates into the extension pipe 20, each hook 33 is easily inserted into the extension pipe 20 by the inclined surface 231 of each positioning block 23 (as shown in fig. 13 and 15).

The combination of the seal 40 and the float 30 is illustrated as follows: the top 311 of the extension portion 31 has a groove 312, the groove 312 can be provided with a fixing seat 41, and the sealing member 40 is fixed on the top 311 of the extension portion 31 by the fixing seat 41; the sealing member 40 may be made of silicone, the sealing member 40 has a neck portion 43 and a pin 45, the neck portion 43 is fixed to a fixing hole 413 of the fixing base 41, and the groove 312 is capable of accommodating the pin 45 (as shown in fig. 13 and 15).

Referring to fig. 3, 12 to 15, the structure of the mask 10 is illustrated as follows: the housing 10 has an annular groove 18, the annular groove 18 engaging with an extension tube 20 of the housing 10; an upper cover 70 may be embedded in the annular groove 18, the water inlet 11 and the water inlet 110 are disposed on the upper cover 70, and the water inlet 110 is located in the extension pipe 20 (for example, the water inlet 110 is disposed on an extension column 71 of the upper cover 70, such that the water inlet 110 is located in the extension pipe 20); therefore, the mold of the cover 10 is easy to manufacture, and the cover 10 and the upper cover 70 are easy to injection mold.

Referring to fig. 8, 9, 12 and 14, the following additional structure of the mask 10 is illustrated: the air inlet 12 and the air outlet 13 are respectively connected with a U-shaped partition plate 19, each U-shaped partition plate 19 is connected with an inclined plate 191, each inclined plate 191 and the wall surface 103 of the cover 10 form a notch 192, each inclined plate 191 is provided with a through hole 193, and each notch 192 and each through hole 193 can be used for air flow to pass through; when the air flow enters the air inlet 12, the U-shaped partition 19 and the inclined plate 191 engaged with the air inlet 12 can concentrate the air flow, and the air flow enters the chamber space 51 through the notch 192 and the through hole 193 to obtain proper buffering.

The structural changes of the cover 10 are described below: each U-shaped partition 19 and each inclined plate 191 may partially extend into at least one recess 36 of the float 30; the U-shaped partition 19 of the air inlet 12 and the U-shaped partition 19 of the air outlet 13 are symmetrically disposed inside the cover 10, the plurality of concave portions 36 are symmetrically disposed on the float 30, and the plurality of air passage partitions 16 are symmetrically disposed inside the cover 10; thus, the assembly of the float 30 and the cover 10 is fool-proof.

Referring to fig. 2 and 12, the sealing manner between the heated plate 50 and the mask body 10 is illustrated as follows: the housing 10 has an annular rim 15, the edge 55 of the heated plate 50 is sealed to the annular rim 15, and a sealing ring 60 is disposed between the edge 55 of the heated plate 50 and the annular rim 15; wherein the sealing ring 60 may wrap around the annular rim 15.

Referring to fig. 9 and 16, in a first embodiment, the plurality of airway partitions 16 have straight edges 161 (shown in fig. 9); in the second embodiment, the plurality of airway baffles 16 have curved edges 162 (shown in FIG. 16); thereby creating different flow impedances.

Claims

1. An improved structure of automatic water injection humidifying chamber, which is characterized in that the humidifying chamber comprises:

a cover body (10) which is provided with a water inlet (11), an air inlet (12) and an air outlet (13), and a plurality of air passage clapboards (16) are arranged inside the cover body (10);

an extension pipe (20) integrally formed on the inner side of the cover body (10), the extension pipe (20) corresponding to the water inlet (11), the extension pipe (20) having a plurality of positioning blocks (23);

a float (30), the float (30) being a hollow container, the float (30) having a plurality of recesses (36), the float (30) having an extension (31) at the center thereof, the extension (31) having a plurality of hooks (33) at the top end (311);

a sealing member (40), wherein the sealing member (40) can be fixed at the top end (311) of the extension part (31), and the sealing member (40) is positioned below the water inlet (11);

a heated plate (50), the heated plate (50) being located below the enclosure (10), and the heated plate (50) sealing the enclosure (10) to form a chamber space (51);

wherein the extension part (31) of the floater (30) can partially penetrate into the extension pipe (20), the extension part (31) can be suspended from the extension pipe (20) by the plurality of hooks (33) and the plurality of positioning blocks (23), so that the bottom of the floater (30) forms a distance with the heated plate (50); the air channel partition plate (16) partially extends into the concave part (36), and the air channel partition plate (16) and the concave part (36) form at least two complex air channels (A1) in the chamber space (51); the outer side surface (301) of the floater (30) and the wall surface (103) of the cover body (10) form at least two annular air passages (A2) in the cavity space (51); when the water level in the chamber space (51) causes the float (30) to rise to a position where the seal (40) blocks an inlet opening (110) of the inlet (11), the inlet (11) will stop injecting liquid; when the water level of the chamber space (51) lowers the float (30) until the seal (40) leaves the inlet opening (110), the inlet opening (11) will be refilled with the liquid.

2. The improvement of structure of automatic water injection humidification chamber as claimed in claim 1, wherein the float (30) is composed of an upper housing (30 a) and a lower housing (30 b), the extension (31) is located on the upper housing (30 a), the plurality of concave portions (36) are symmetrically disposed on the upper housing (30 a), and the plurality of air duct partitions (16) are symmetrically disposed inside the cover (10); therefore, the assembly of the floater (30) and the cover body (10) has the fool-proof function.

3. The improvement of the structure of the automatic water injection humidification chamber as claimed in claim 1, wherein the plurality of hooks (33) surround the outer side of the sealing member (40), and each hook (33) is connected to the top end (311) of the extension portion (31); the positioning blocks (23) block the hooks (33) from being separated from the extension pipe (20), and the floater (30) can be suspended from the extension pipe (20) so that the bottom (35) of the floater (30) can not contact the heated plate (50).

4. The improvement of structure of automatic water injection humidification chamber as claimed in claim 1, wherein each positioning block (23) further has an inclined surface (231), and when the extension portion (31) of the float (30) penetrates into the extension pipe (20), each hook (33) is easily inserted into the extension pipe (20) by the inclined surface (231) of each positioning block (23).

5. The improvement of the structure of the automatic water injection humidifying chamber as claimed in claim 1, wherein the top (311) of the extension portion (31) has a recess (312), the recess (312) can be installed with a fixing seat (41), and the sealing member (40) is fixed on the top (311) of the extension portion (31) by the fixing seat (41).

6. The improvement on the structure of an automatic water-injection humidifying chamber as claimed in claim 5, wherein the sealing member (40) is made of silicone, the sealing member (40) has a neck portion (43) and a pin (45), the neck portion (43) is fixed to a fixing hole (413) of the fixing base (41), and the groove (312) is capable of receiving the pin (45).

7. The improvement of the structure of automatic water injection humidifying chamber as claimed in claim 1, wherein the enclosure (10) has an annular groove (18), the annular groove (18) is engaged with the extension pipe (20) of the enclosure (10); an upper cover (70) can be embedded and fixed in the annular groove (18), the water inlet (11) and the water inlet hole (110) are arranged on the upper cover (70), and the water inlet hole (110) is positioned in the extension pipe (20).

8. The improvement of structure of automatic water injection humidification chamber as claimed in claim 1, wherein the air inlet (12) and the air outlet (13) are respectively connected with a U-shaped partition (19), each U-shaped partition (19) is connected with an inclined plate (191), each inclined plate (191) forms a notch (192) with the wall surface (103) of the enclosure (10), each inclined plate (191) has a through hole (193), each notch (192) and each through hole (193) can be used for air flow, each U-shaped partition (19) and each inclined plate (191) can partially extend into at least one recess (36) of the float (30).

9. The improvement of the structure of the automatic water injection humidification chamber as claimed in claim 8, wherein the U-shaped partition (19) of the air inlet (12) and the U-shaped partition (19) of the air outlet (13) are symmetrically disposed inside the enclosure (10), the plurality of concave portions (36) are symmetrically disposed on the float (30), and the plurality of air channel partitions (16) are symmetrically disposed inside the enclosure (10); therefore, the assembly of the floater (30) and the cover body (10) has the fool-proof function.

10. The improvement of the structure of the automatic water injection humidifying chamber as claimed in claim 1, wherein each air channel partition (16) has a straight edge (161) or an arc edge (162).