CN103182140B

CN103182140B - Breather valve

Info

Publication number: CN103182140B
Application number: CN201110457212.9A
Authority: CN
Inventors: 杨丹
Original assignee: Beijing Aeonmed Co Ltd
Current assignee: Beijing Aeonmed Co Ltd
Priority date: 2011-12-30
Filing date: 2011-12-30
Publication date: 2016-06-22
Anticipated expiration: 2031-12-30
Also published as: CN103182140A

Abstract

Disclosure one breather valve, including valve gap, valve body, described valve inner has valve pocket, and it is provided with air vent, the air taking port connected with patient end, described valve body is additionally provided with the air entry for the autonomous air-breathing of patient, inside described valve gap, there is gas passage, and it is provided with air inlet, described valve gap and valve body joint are provided with the first flap, described air vent is provided with the second flap, described air entry arranges latallae, described first flap and the second flap are connected by umbellate form body, described valve pocket is connected by the first flap selectivity with air inlet, described valve pocket is connected by latallae selectivity with the external world, described valve pocket is connected by the second flap selectivity with air vent。This breather valve is provided with the autonomous air entry of patient, has that processability of product structure is good, an advantage of can guarantee that patient in use smooth breathing all the time。

Description

Breather valve

Technical field

The present invention relates to medical instruments field, particularly relate to a kind of breather valve。

Background technology

Respirator is that a kind of normal physiological that can replace, control or change people is breathed, increase pulmonary ventilation volume, improve respiratory function, alleviate work of breathing consumption, save the medical apparatus and instruments of heart reservation ability, breather valve is the important component part of first-aid respirator, it is to connect the crucial bridge between first-aid respirator host machine part and patient, it it is the key of the treatment function realizing respirator, so function and performance requirement to breather valve are very strict, if there are some factors of instability in breather valve, it will have a strong impact on the treatment to patient。

The structure that at present breather valve device on the market is generally adopted respiration valve and diaphragm is assembled together, the such as breather valve device shown in Fig. 1, it includes valve body 4a, valve gap 1a, valve pocket 5a and diaphragm 3a, respiration valve 2a, wherein, diaphragm 3a and respiration valve 2a combines and is arranged on the end close to valve gap 1a of valve pocket 5a, and valve pocket 5a is optionally connected with the air inlet 6a being arranged on valve gap 1a or air vent 7a。Upon inhalation, air-flow enters from the air inlet 6a being arranged on valve gap 1a, and under the effect of stream pressure, diaphragm 3a moves down, so that air-flow enters in valve pocket 5a from the gap between diaphragm 3a and respiration valve 2a, and then feeds gas into patient end；Upon exhalation, under the effect of exhalation gas pressure, diaphragm 3a upwardly respiration valve 2a, simultaneously, gas pressure makes respiration valve 2a upwardly, thus occurring gap at respiration valve 2a and valve pocket 5a between the end of valve gap 1a, gas enters air vent 7a from this gap, thus gas patient breathed out is discharged。

There is processability of product structure defect in above-mentioned breather valve device, owing to respiration valve and diaphragm are assembled together, and respiration valve and diaphragm are generally adopted medical silica-gel material and make, the gas of patient's exhalation is discharged by breather valve inner chamber, therefore inevitably there will be the water droplet of a small amount of condensation in the valve pocket of breather valve, thus being easily caused respiration valve and diaphragm bonds together, it is easy to cause that breathing has some setbacks, using and there is potential safety hazard。

The disclosed a kind of breather valve device of such as Chinese patent literature CN101745169A again, as shown in Figure 2, it includes valve body 1b, valve gap 3b, valve pocket 2b, diaphragm 6b, respiration valve 7b, wherein, sidewall at valve pocket 2b arranges air inlet pipe 4b, and diaphragm 6b is placed in air inlet pipe 4b, and is connected with valve pocket 2b selectivity by air inlet pipe 4b, another sidewall of valve pocket 2b is arranged exhaustor 5b, exhaustor 5b and is connected with valve pocket 2b selectivity by respiration valve 7b。Upon inhalation, air-flow enters from air inlet pipe 4b, oppresses diaphragm 6b so that occur gap between diaphragm 6b and its support, and air-flow enters valve pocket 2b from this gap, and then flows into patient end；During expiration, respiration valve 7b is under airflow function so that gap occur in itself and valve pocket 2b, enables the gas of exhalation to enter in exhaustor 5b by this gap, is thus discharged by the gas of exhalation。

This breather valve device have drawbacks in that it is not provided with by the autonomous suction line of patient。Owing to, in actual application, respirator there will be problem unavoidably, cause that it cannot supply by normal operation, be now accomplished by patient and can suck air from breather valve outside voluntary, therefore this breather valve device exists Insufficient defect。

Summary of the invention

It is an object of the invention to solve the problems referred to above, it is provided that a kind of breather valve, it is provided with the autonomous air entry of patient, has that processability of product structure is good, an advantage of can guarantee that patient in use smooth breathing all the time。

It is an object of the invention to be achieved through the following technical solutions:

A kind of breather valve, including valve gap, valve body, described valve inner has valve pocket, and it is provided with air vent, the air taking port connected with patient end, described valve body is additionally provided with the air entry for the autonomous air-breathing of patient, inside described valve gap, there is gas passage, and it is provided with air inlet, described valve gap and valve body joint are provided with the first flap, described air vent is provided with the second flap, described air entry arranges latallae, described first flap and the second flap are connected by umbellate form body, described valve pocket is connected by the first flap selectivity with air inlet, described valve pocket is connected by latallae selectivity with the external world, described valve pocket is connected by the second flap selectivity with air vent。

Preferably, described valve gap is arranged on the end relative with air vent on valve body, and described air taking port and described air entry are oppositely arranged。

Preferably, the end connected with valve body at described valve gap is provided with female thread, described valve body coupling female thread is provided with external screw thread, so that valve gap and valve body are threaded connection, at described female thread root and have first annular groove inside described valve gap, corresponding first annular groove arranges the second cannelure in the end of valve body, and described first flap is arranged in the space being made up of first annular groove and the second cannelure。

Preferably, on described valve body, the inner end of corresponding air vent has the 3rd cannelure, is provided with underlay in described 3rd cannelure, and described second flap is arranged on described underlay top。

Preferably, described umbellate form body includes the top plate and the lower plywood that are parallel to each other, and by connecting as one through the connecting rod of upper and lower laminate, center, described first flap has the groove of accommodating top plate, described second flap has the groove of accommodating lower plywood, described first flap and the second flap are connected by umbellate form body so that upper and lower laminate, be respectively embedded in the groove of correspondence。

Preferably, the outer end of described valve body correspondence air entry is provided with latallae, described latallae is arranged on latallae and supports, and described latallae and latallae are supported and be fixed on valve body by gland, and described latallae supports and has the manhole being in communication with the outside。

Preferably, described underlay is stepped annular solid, its internal hollow out, and is being internally provided with criss-crossing reinforcing ribs, arranges link in described reinforcement central lower, and described link is threaded downwards connecting tube。

Preferably, described top plate having multiple air-vent, corresponding air-vent is provided with diaphragm on top plate。

Preferably, the bottom of described connecting rod is provided with back-up ring, and described connecting rod periphery is arranged with spring, and makes spring one end and link base contact, and the other end contacts with back-up ring, has the step surface of retainer ring spacing inside described connecting tube。

Preferably, described valve body is additionally provided with the detection mouth for detecting valve pocket internal pressure。

The invention have the benefit that the air entry by being arranged to the autonomous air-breathing of patient on valve body, it is possible to when respirator can not supply, patient can suck air from breather valve outside voluntary so that the function of breather valve is more complete；By arranging the first flap in valve gap and valve body joint, by arranging the second flap at air vent, first flap and the second flap are connected by umbellate form body, umbellate form body is by upper, first flap and the second flap are connected by lower plywood, top plate has some air-vents, corresponding air-vent is provided with diaphragm, when air inlet, under the effect of gas pressure, umbellate form body entirety moves down, make generation gap between diaphragm and air-vent, gas is hence into valve pocket, enter patient end, second flap drives at umbellate form body and moves down closure air vent simultaneously, when making air inlet, source of the gas will not leak to air vent；Upon exhalation, under the effect of gas pressure, umbellate form body moves, making the second flap produce gap with air vent, gas is discharged by air vent, herein by flap and diaphragm isolation design, avoid flap easily to bond together with diaphragm, cause breathing the phenomenon having some setbacks；On valve body, it is additionally provided with the detection mouth for detecting valve pocket internal pressure simultaneously, is connected through detecting instrument, it is possible to the working condition of real-time monitoring valve。Contrast prior art, this breather valve is provided with the autonomous air entry of patient, has that processability of product structure is good, an advantage of can guarantee that patient in use smooth breathing all the time。

Accompanying drawing explanation

Below according to drawings and Examples, the present invention is described in further detail。

Fig. 1 is the partial schematic sectional view of breather valve device of the prior art；

Fig. 2 is the cross-sectional schematic of another breather valve device of the prior art；

Fig. 3 is the structural representation of breather valve of the present invention；

Fig. 4 is the cross-sectional schematic of breather valve of the present invention；

Fig. 5 is the cross-sectional schematic of the valve body shown in Fig. 3；

Fig. 6 is the cross-sectional schematic of the valve gap shown in Fig. 3；

Fig. 7 is the perspective view of the umbellate form body shown in Fig. 4；

Fig. 8 is the perspective view of the underlay shown in Fig. 4；

Fig. 9 is the cross-sectional schematic of the connecting tube shown in Fig. 4；

Figure 10 is the cross-sectional schematic that the latallae shown in Fig. 4 supports。

In figure:

1, valve gap；2, valve body；3, valve pocket；4, air vent；5, air taking port；6, air entry；7, gas passage；8, air inlet；9, the first flap；10, the second flap；11, latallae；12, umbellate form body；13, end；14, first annular groove；15, the second cannelure；16, the 3rd cannelure；17, underlay；18, top plate；19, lower plywood；20, connecting rod；21, latallae supports；22, gland；23, manhole；24, reinforcement；25, link；26, connecting tube；27, air-vent；28, diaphragm；29, back-up ring；30, spring；31, step surface；32, detection mouth；

1a, valve gap；2a, respiration valve；3a, diaphragm；4a, valve body；5a, valve pocket；6a, air inlet；7a, air vent；

1b, valve body；2b, valve pocket；3b, valve gap；4b, air inlet pipe；5b, exhaustor；6b, diaphragm；7b, respiration valve。

Detailed description of the invention

As shown in figs. 34 in embodiment, breather valve of the present invention, including valve gap 1, valve body 2, valve body 2 is internal has valve pocket 3, and it is provided with air vent 4, the air taking port 5 connected with patient end, valve body 2 is additionally provided with the air entry 6 for the autonomous air-breathing of patient, valve gap 1 is internal has gas passage 7, and it is provided with air inlet 8, valve gap 1 and valve body 2 joint are provided with the first flap 9, air vent 4 is provided with the second flap 10, air entry 6 arranges latallae 11, first flap 9 is connected by umbellate form body 12 with the second flap 10, valve pocket 3 is connected by the first flap 9 selectivity with air inlet 8, valve pocket 3 is connected by latallae 11 selectivity with the external world, valve pocket 3 is connected by the second flap 10 selectivity with air vent 4。

Referring to Fig. 5, it is shown that the concrete structure of valve body, the side of valve body 2 arranges air taking port 5, and opposite side arranges air entry 6, and upper end 13 connects with valve gap 1, and bottom arranges air vent 4, and air taking port 5 is used for connecting patient end, carries gas to patient；Air entry 6 is for when respirator can not normally supply, and patient can suck air from outside voluntary；End 13 is provided with external screw thread, for threaded valve gap 1, and is provided with the second cannelure 15 in inner side, is used for installing the first flap 9；The inner end of corresponding air vent is provided with the 3rd cannelure 16, is used for installing underlay 17 and the second flap 10。

Referring to Fig. 6, illustrate the concrete structure of valve gap, valve gap 1 side arranges air inlet 8, inside is gas passage 7, the end that valve gap 1 connects with valve body 2 is provided with female thread, at the root of female thread and be provided with first annular groove 14 in the inner side of valve gap 1, first annular groove 14 and the second cannelure 15 have collectively constituted the installing space of the first flap 9, and the first flap 9 can move up and down under external force in this space。

Referring to Fig. 7, illustrate the concrete structure of umbellate form body, umbellate form body 12 is upper by the cross-under of a center rod 20, lower plywood 18, 19 compositions, and on, lower plywood 18, 19 be arranged in parallel, top plate 18 has eight air-vents 27, corresponding air-vent 27 arranges eight diaphragms 28 on top plate, lower plywood 19 is circular entity, by by top plate 18, lower plywood 19 is respectively embedded into the first flap 9, in second flap 10, realize being connected the first flap 9 with the second flap 10, further, first flap 9 and the second flap 10 realize linkage under umbellate form body 12 drives, thus realizing efficiently separating of intake and exhaust process。

Referring to Fig. 8, it is shown that the concrete structure of underlay, underlay 17 is stepped annular solid, its internal hollow out, and criss-crossing reinforcing ribs 24 is set therein, the central lower at reinforcement 24 is provided with link 25, link 25 has external screw thread, for being connected with connecting tube 26 by screw thread。

Referring to Fig. 9, illustrate the concrete structure of connecting tube, connecting tube 26 one end is provided with female thread, for threaded underlay 17, there is inside it step surface 31, its effect is when umbellate form body moves down, and restriction back-up ring 29 moves down so that umbellate form body 12 can only move in the space between the link 25 of underlay and step surface 31。

Referring to Figure 10, illustrate the concrete structure that latallae supports, latallae supports 21 centers and has ladder hole, for installation side diaphragm 11, manhole 23 is also had in the side of ladder hole, latallae 11 top has annular protrusion, bottom is disc, latallae 11 is arranged on latallae and supports on 21, its annular protrusion is made to be placed in the top of step through-hole, disc is close to latallae and is supported the medial surface setting of 21, disc makes air entry 6 be isolated from the outside, manhole 23 is in communication with the outside, annular protrusion and disc can ensure that latallae 11 is not fall off latallae and supports 21 simultaneously。

Referring to Fig. 3,5, valve body 2 side has screwed hole, for threaded detection pipe, detection pipe arrange detection mouth 32, be used for detecting valve pocket internal pressure。

Referring to Fig. 4, being provided with back-up ring 29 bottom connecting rod 20, connecting rod 20 periphery is arranged with spring 30, and makes spring 30 one end and link 25 base contact, and the other end contacts with back-up ring 29, and connecting tube 26 is internal has the spacing step surface of back-up ring 29 31。

During air-breathing, source of the gas enters the gas passage 7 within valve gap from air inlet 8, under gas pressure effect, the first flap 9 is promoted to move down in the space being made up of first annular groove 14 and the second cannelure 15, owing to top plate 18 is embedded into the first flap 9 inside, therefore the first flap 9 drives umbellate form body 12 to move down, owing to lower plywood 19 is embedded into the second flap 10 inside, therefore the connecting rod 20 of umbellate form body 12 overcomes spring 30 elastic force, and the second flap 10 is driven to move down；When top plate 18 moves down so that produce gap between air-vent 27 and the diaphragm 28 on top plate, gas enters valve pocket 3 from this gap, owing to the second flap 10 moves down, compresses underlay 17 so that do not have gap between the second flap 10 and underlay 17；Meanwhile, under the effect of gas pressure, the disc of latallae 11 is adjacent to latallae laterally and supports the medial surface of 21, can't produce gap；Then, enter into the gas within valve pocket 3 and be only delivered to patient end from air taking port 5, will not reveal from air vent 4 and air entry 6。

During expiration, the gas of patient's exhalation enters valve pocket 3 from air taking port 5, under the effect of gas pressure, upwards boost the top plate 18 of the first flap 9 and inside thereof, first flap 9 upwards holds out against to first annular groove 14, umbellate form body 12 also moves upward therewith, but now diaphragm 28 is close to the upper surface of top plate 18, will not produce gap；Lower plywood 19 and the second flap 10 overcome spring force to move upward so that gap occur between the second flap 10 and underlay 17；Meanwhile, under the effect of gas pressure, the disc of latallae 11 is adjacent to latallae laterally and supports the medial surface of 21, can't produce gap；Then, the gas of exhalation is only discharged by the gap between the second flap 10 and underlay 17, will not reveal from air inlet 8 and air entry 6。

When respirator can not normally supply, now valve pocket 3 internal pressure is less than ambient pressure, and under the ordering about of pressure reduction, outside air is inwardly impacted by manhole 23, the disc making latallae 11 supports 21 medial surface with latallae and gap occurs, and gas thus gap enters in valve pocket 3；Meanwhile, under spring 30 elastic force effect, do not have gap between the second flap 10 and underlay 17, without gap occurs between diaphragm 28 and top plate 18；Then, enter into the air within valve pocket 3 and entered patient end by air taking port 5；As the patient exhales, with respirator can normal operation unrelated, principle is also identical。

Claims

1. a breather valve, including valve gap (1), valve body (2), described valve body (2) is internal has valve pocket (3), and it is provided with air vent (4), the air taking port (5) connected with patient end, it is characterized in that: described valve body (2) is additionally provided with the air entry (6) for the autonomous air-breathing of patient, described valve gap (1) is internal has gas passage (7), and it is provided with air inlet (8), described valve gap (1) and valve body (2) joint are provided with the first flap (9), described air vent (4) is provided with the second flap (10), described air entry (6) arranges latallae (11), described first flap (9) is connected by umbellate form body (12) with the second flap (10), described valve pocket (3) is connected by the first flap (9) selectivity with air inlet (8), described valve pocket (3) is connected by latallae (11) selectivity with the external world, described valve pocket (3) is connected by the second flap (10) selectivity with air vent (4)。

2. breather valve according to claim 1, it is characterized in that: described valve gap (1) is arranged on end (13) place relative with air vent (4) on valve body (2), and described air taking port (5) and described air entry (6) are oppositely arranged。

3. breather valve according to claim 1, it is characterized in that: the end connected with valve body (2) at described valve gap (1) is provided with female thread, described valve body (2) coupling female thread is provided with external screw thread, so that valve gap (1) and valve body (2) are threaded connection, at described female thread root, and have first annular groove (14) in described valve gap (1) inner side, corresponding first annular groove (14) arranges the second cannelure (15) in the end (13) of valve body, described first flap (9) is arranged in the space being made up of first annular groove (14) and the second cannelure (15)。

4. breather valve according to claim 1, it is characterized in that: the inner end of the upper corresponding air vent (4) of described valve body (2) has the 3rd cannelure (16), being provided with underlay (17) in described 3rd cannelure (16), described second flap (10) is arranged on described underlay (17) top。

5. breather valve according to claim 4, it is characterized in that: described umbellate form body (12) includes the top plate (18) and the lower plywood (19) that are parallel to each other, and by through upper, lower plywood (18), (19) connecting rod (20) at center connects as one, described first flap (9) has the groove of accommodating top plate (18), described second flap (10) has the groove of accommodating lower plywood (19), described first flap (9) is connected by umbellate form body (12) with the second flap (10), make, lower plywood (18), (19) it is respectively embedded in the groove of correspondence。

6. breather valve according to claim 1, it is characterized in that: the outer end of the corresponding air entry (6) of described valve body (2) is provided with latallae (11), described latallae (11) is arranged on latallae and supports on (21), described latallae (11) and latallae are supported (21) and are fixed on valve body (2) by gland (22), and described latallae supports and has, on (21), the manhole (23) being in communication with the outside。

7. breather valve according to claim 5, it is characterized in that: described underlay (17) is stepped annular solid, its internal hollow out, and it is being internally provided with criss-crossing reinforcing ribs (24), arranging link (25) in described reinforcement (24) central lower, described link (25) is threaded downwards connecting tube (26)。

8. breather valve according to claim 5, it is characterized in that: having multiple air-vent (27) on described top plate (18), corresponding air-vent (27) is provided with diaphragm (28) on top plate (18)。

9. breather valve according to claim 7, it is characterized in that: the bottom of described connecting rod (20) is provided with back-up ring (29), described connecting rod (20) periphery is arranged with spring (30), and make spring (30) one end and link (25) base contact, the other end contacts with back-up ring (29), and described connecting tube (26) is internal has the step surface (31) that back-up ring (29) is spacing。

10. according to the arbitrary described breather valve of claim 1 or 2 or 3 or 4 or 6, it is characterised in that: described valve body (2) is additionally provided with the detection mouth (32) for detecting valve pocket internal pressure。