CN204319475U - Breathing machine safety valve - Google Patents

Breathing machine safety valve Download PDF

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Publication number
CN204319475U
CN204319475U CN201420762374.2U CN201420762374U CN204319475U CN 204319475 U CN204319475 U CN 204319475U CN 201420762374 U CN201420762374 U CN 201420762374U CN 204319475 U CN204319475 U CN 204319475U
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China
Prior art keywords
valve
valve body
pressure relief
safety valve
provided
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CN201420762374.2U
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Chinese (zh)
Inventor
孟保林
唐雪峰
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南京舒普思达医疗设备有限公司
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Priority to CN201420762374.2U priority Critical patent/CN204319475U/en
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Publication of CN204319475U publication Critical patent/CN204319475U/en

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Abstract

The utility model discloses a breathing machine safety valve. The breathing machine safety valve comprises a valve seat, a pressure relief device and an emergency air breathing device, wherein the valve seat is internally provided with a valve cavity communicated with a breathing machine air pipe; the pressure relief device and the emergency air breathing device are connected onto the valve seat and are communicated by the valve cavity; the pressure relief device of the safety valve comprises a valve body, a pressure relief connector, a valve element, an ejection rod, an elastic part and an adjusting screw sleeve; the outer wall of the connection section of the valve body and the adjusting screw sleeve is a tapered inclined wall and is provided with threads; the section of the valve body is further provided with a radial line slot; the pressure relief device of the safety valve further comprises a fastening nut; the fastening nut rotationally sleeves the outer wall of the valve body connected to the adjusting screw sleeve by thread connection. The breathing machine safety valve has a simple structure relative to the loosening resistance of the adjusting screw sleeve and can reliably resist loosening; the anti-loosening performance is not reduced after multiple times of detaching and mounting, and the safety pressure value of an air channel is convenient and accurate to adjust.

Description

一种呼吸机安全阀 A breathing machine safety valve

技术领域 FIELD

[0001] 本实用新型涉及呼吸机安全阀设备技术领域,具体说是一种安全阀的泄压装置。 [0001] Technical Field The present invention relates to a ventilator safety valve device, particularly pressure relief device is a safety valve.

背景技术 Background technique

[0002] 呼吸机、麻醉机等医疗器械在使用时,必需对患者进行机械通气,对于正在接受治疗的患者来说,通气量的大小控制是非常重要的,特别是婴幼儿患者和危重症患者,这不仅需要流量的精确控制,更需要安全阀对气道压力的灵敏反应。 [0002] ventilators, anesthesia machines and other medical equipment is in use, the patient required mechanical ventilation for patients being treated, the size of the ventilation control is very important, especially infants and patients with critically ill patients this not only requires accurate control of the flow rate, but more sensitive response to the valve airway pressure. 这就必须要求安全阀在气道安全压力下的良好密封和达到压力上限时的快速、准确地打开,因此安全阀对于呼吸机、麻醉机等医疗器械的精度、安全等方面的控制是至关重要的。 This valve requires a good seal must be lower airway pressure and the safety limit of the pressure to achieve rapid, accurate open, so the safety valve for a ventilator, anesthesia machine precision and the like medical devices, security and other control is vital important.

[0003] 呼吸机安全阀的泄压装置按其结构和作用原理分为重力式、杠杆式、弹簧式等等。 [0003] The pressure relief device ventilator safety valve into its structure and principle of action of gravity, the lever-type, spring-like. 因重力式和杠杆式体积较大使用不便,而弹簧式体积小且反应灵敏,故呼吸机和麻醉机等医疗器械设备常选用弹簧式安全阀泄压装置。 Leveraged by gravity and bulky and inconvenient to use, and small volume and responsive spring, so that the ventilator and anesthesia machines and other medical devices are often used in pressure relief valve spring means. 目前一般的弹簧式安全阀泄压装置由阀体、阀芯、弹簧和调节螺套组成,依靠阀芯和出气口的线接触来实现密封的效果,通过调整调节螺套来精确调整气道安全压力的大小。 The general spring-loaded pressure relief valve means by the valve body, the valve body, and a spring adjustment nut composition, relying on the valve body and the air outlet to the line contact sealing effect, precisely adjusted by adjusting the adjusting airway safety nut the size of the pressure. 现有调节螺套一般通过螺纹连接在阀体上,使用过程中常常会因滑丝造成调节螺套的松动,从而影响了气道安全压力的精确性,为解决这一问题,有的安全阀泄压装置采用固定式的调节螺套,将调节螺套固定在阀体上,这样固然解决了调节螺套松动的问题,但却使得安全阀泄压装置失去了调整气道安全压力大小的功能,影响了其应用的便利性和灵活性。 Usually conventional adjusting nut threadably connected to the valve body during use often results in loosening of the collar by adjusting the slide wire, thus affecting the accuracy of the security airway pressure, to solve this problem, some safety valve pressure relief device using a fixed adjustment nut, the adjustment nut is fixed to the valve body, although this solves the problem of adjusting nut loose, but such that the pressure relief valve adjustment means lost airway pressure safety feature size , affecting its convenience and application flexibility. 也有的安全阀泄压装置采用在调节螺套后面再添加一个对顶螺母,利用对顶螺母对顶作用来防止调节螺套的松动,由于多用一个对顶螺母,需要调整气道的安全压力时相当不方便,并且防松工作并不十分可靠。 Some pressure relief valve means is also employed later in adjusting the collar to add a top nut, a top nut for use on top to prevent the effect of the adjustment nut loose, since use a plurality of top nut, need to adjust the relief pressure of the airway rather inconvenient, and lock the work is not very reliable.

发明内容 SUMMARY

[0004] 本实用新型的目的是针对目前防止呼吸机安全阀调节螺套松动问题,提供一种结构简单、效果可靠的呼吸机安全阀。 [0004] The object of the present invention is to prevent the ventilator safety valve for regulating the current nut loosening problems, provide a simple, effective and reliable ventilator safety valve.

[0005] 本实用新型的目的是通过以下技术方案实现的: [0005] The object of the present invention is achieved by the following technical solution:

[0006] 一种呼吸机安全阀,包括阀座、泄压装置和应急空气吸入装置,阀座内设有与呼吸机气管相连通的阀腔,泄压装置和应急空气吸入装置连接在阀座上,并通过阀腔相连通;安全阀的泄压装置,包括阀体、泄压接头、阀芯、顶杆、弹性部件和调节螺套,所述阀体一端与所述泄压接头连接,另一端内壁设有内螺纹,所述调节螺套通过该内螺纹连接在所述阀体端部,所述顶杆通过设于顶杆和调节螺套之间的弹性部件的弹性将所述阀芯顶盖住所述泄压接头的出气口,所述阀体与调节螺套连接段的外壁呈锥形斜壁,且设有螺纹,阀体该段还设有径向线槽,该安全阀的泄压装置还包括紧固螺母,所述紧固螺母通过螺纹连接旋套在连接所述调节螺套的阀体外壁上,当紧固螺母拧紧后,开有径向线槽的阀体壁向内收口,利用收口的弹力使其与调节螺套间压紧固 [0006] A ventilator safety valve, comprising a valve seat, a pressure relief device, and an emergency air suction device, equipped with a valve seat and a valve chamber communicating the ventilator tube, pressure relief devices and emergency air suction device connected to the valve seat on, through the valve chamber and communicating; the relief valve means includes a valve relief fittings, the valve body, the jack, the elastic member and the adjustment nut, the one end of the pressure relief valve linker, the other end of the inner wall is provided with an internal thread, the adjusting nut is connected to the valve body by means of the internally threaded end portion, by an elastic jack provided on the jack and the elastic regulating member between the collar of the valve covering the top of the core joint relief outlet, the valve element is connected with the outer wall segment adjusting nut tapered inclined wall, and provided with a thread, the section of the valve body further provided with a radial slot, the security pressure relief valve means further comprises a fastening nut, the fastening nut is screwed connection sleeve is connected in the adjusting nut by screwing the outer wall of the valve body, when the tightening nut is tightened, the valve is opened the radial slot shut wall inwardly by the elastic force it shut with adjusting screw fastening pressure ensuite 定。 set.

[0007] 应急空气吸入装置包括隔板,隔板上设有连通阀腔与阀座外部的通孔,通孔的阀腔侧覆盖有橡胶膜片,橡胶膜片固定在隔板上。 [0007] The emergency air suction means comprises a diaphragm, a valve chamber is provided in communication with the outside of the separator through the valve seat hole, the valve chamber side through hole is covered with a rubber diaphragm, a rubber diaphragm secured to the partition plate. 当呼吸机气管内供气不足或断气时阀座阀腔内的气压小于外界大气压,隔板上的橡胶膜片因外界气压大而偏向阀腔内,是的外界空气从通孔进入到阀腔内,确保病人能够呼吸,保证了病人的安全。 When the ventilator tube or expire insufficient supply valve seat in the valve chamber pressure less than ambient atmospheric pressure, the rubber diaphragm separator due to large external pressure biased valve chamber, the outside air is entering from the through hole to the valve chamber inside, make sure that the patient is able to breathe, to ensure patient safety.

[0008] 所述径向线槽可以为2-8条,且呈对称分布。 [0008] The radial slot may be 2-8 bar, and symmetrically. 径向线槽的作用是使得阀体壁能够向内收口,一般径向线槽采用3、4条,就能够实现目的,径向线槽数量增多并不会有更好的收口效果。 Is such that the radial line of action of the valve can be shut wall inwardly, generally radial slot using 3,4 bar, it is not possible to increase the effect will be better shut purposes, the number of radial slot.

[0009] 由于需要阀体壁向内收口,所述阀体一般采用塑料材质制造。 [0009] Since the inner wall of the valve body need to shut the valve body is generally used for producing plastic material.

[0010] 所述弹性部件为弹簧。 The [0010] elastic member is a spring. 弹簧是最常用和最易得的弹性部件,采用弹簧可降低生产和使用成本。 The spring is the most readily available and most commonly used elastic member with spring and can reduce production cost.

[0011] 本实用新型具有以下突出的有益效果: [0011] The present invention has the following outstanding advantages:

[0012]由于阀体与调节螺套连接段的外壁呈锥形斜壁,阀体该段还设有径向线槽,紧固螺母通过螺纹连接旋套在连接调节螺套的阀体外壁上,当紧固螺母拧紧后,开有径向线槽的阀体壁向内收口,利用收口的弹力使其与调节螺套间压紧固定,这种防松结构简单、防松可靠,可多次拆装而不降低防松性能;同时,需要调整气道安全压力值时,无需将固定螺母完全拧下,只需拧松固定螺母即可对调节螺套进行调整,使用极其方便。 [0012] Since the valve body and the outer wall of the adjusting nut tapered connecting section inclined wall section of the valve body also has a radial slot, fastening nuts screwed sleeve outer wall of the valve sleeve is connected by a threaded adjustment screw when the tightening nut is tightened, the wall of the valve body is opened radially inwardly shut slot by pressing it shut elastic force of the adjustment screw fixing suites, this simple locking structure, the locking reliable, multiple removably locking without reducing performance; the same time, the need to adjust the security airway pressure, without the need to completely tighten the fixing nut, the nut can simply loosen the adjusting nut to adjust, extremely easy to use.

附图说明 BRIEF DESCRIPTION

[0013] 图1是本实用新型呼吸机安全阀的结构示意图; [0013] FIG. 1 is a structural diagram of the present invention ventilator safety valve;

[0014] 图2为本实用新型呼吸机安全阀的泄压装置的结构示意图; [0014] FIG. 2 is a schematic structure of the pressure relief valve device of a ventilator of the present utility;

[0015] 图中,1-阀体,2-顶杆,3-弹性部件,4-阀芯,5-调节螺套,6-接头,7-紧固螺母,8-阀体与调节螺套连接段。 [0015] FIG, 1 a valve body, 2 the jack, the elastic member 3-, 4- spool adjustment nut 5-, 6- linker, 7- fastening nut, the adjustment nut body 8- connection section.

具体实施方式 Detailed ways

[0016] 下面结合附图及实施例对本实用新型作进一步说明: [0016] accompanying drawings and the following examples further illustrate the present invention as:

[0017] 参见图1及图2,一种呼吸机安全阀,包括阀座9、泄压装置和应急空气吸入装置,阀座9内设有与呼吸机气管10相连通的阀腔11,泄压装置和应急空气吸入装置连接在阀座9上,并通过阀腔11相连通。 [0017] Referring to FIGS. 1 and 2 A ventilator safety valve, comprising a valve seat 9, pressure relief devices and emergency air suction device equipped with the valve seat 9 and the ventilator duct 10 communicating the valve chamber 11, vent pressure means and emergency air suction device is connected on the valve seat 9 and through the valve chamber 11 communicates.

[0018] 安全阀的泄压装置包括阀体1、泄压接头6、阀芯4、顶杆2、弹簧3、调节螺套5和紧固螺母7,塑料材质的阀体I的一端与泄压接头6连接,另一端内壁设有内螺纹,调节螺套5通过该内螺纹连接在阀体I端部,顶杆2通过设于顶杆2和调节螺套5之间的挺好的弹性将阀芯4顶盖住泄压接头6的出气口,阀体与调节螺套连接段8的外壁呈锥形斜壁,且设有螺纹,阀体该段8设有对称分布的4条径向线槽,紧固螺母7通过螺纹连接旋套在阀体与调节螺套连接段8的外壁上。 [0018] The relief valve means includes a valve body 1, the pressure relief joint 6, the valve body 4, the jack 2, spring 3, 5 and adjusting nut fastening nut 7, the valve body of plastic material at one end of the I and vent crimping head 6, and the other end of the inner wall is provided with an internal thread 5 connected to the adjusting nut end portion of the valve body I, 2 by the jack is provided between the adjustment screw jack 2 and the inner sleeve 5 by an elastic thread good the valve element 4 covers relief fittings air outlet 6, the valve body is connected with the outer wall segment adjusting nut 8 is tapered inclined wall, and provided with a thread, the section of the valve body 8 is provided with four symmetrically distributed diameter the groove, the outer wall of the valve body and the fastening nut adjusting section 8 is connected by screwing a nut 7 screwed in the sleeve. 当紧固螺母7拧紧后,开有径向线槽的阀体I壁向内收口,利用收口的弹力使其与调节螺套5间压紧固定。 When the fastening nut 7 tightened slot opening radially inwardly of the wall of the valve body I shut by spring force it shut adjusting nut 5 and pressed and fixed.

[0019] 应急空气吸入装置包括隔板12,隔板12上设有连通阀腔11与阀座外部的通孔13,通孔13的阀腔11侧覆盖有橡胶膜片14,橡胶膜片14固定在隔板12上。 [0019] The emergency air suction means comprises a spacer 12, 11 is provided in communication with the outside of the valve seat chamber 12 through hole 13 on the spacer, the valve chamber 11 side through hole 13 is covered with a rubber diaphragm 14, the diaphragm rubber 14 fixed to the partition 12.

[0020] 以上是本实用新型的较佳实施例,凡依本实用新型技术方案所作的改变,所产生的功能作用未超出本实用新型技术方案的范围时,均属于本实用新型的保护范围。 [0020] The above is the preferred embodiment of the present invention embodiment, under this invention where the change made by the technical solution, the resulting functional role does not exceed the scope of the technical solution of the present invention, the present disclosure are within the scope of protection.

Claims (5)

1.一种呼吸机安全阀,包括阀座(9)、泄压装置和应急空气吸入装置,所述阀座(9)内设有与呼吸机气管(10)相连通的阀腔(11),所述泄压装置和应急空气吸入装置连接在所述阀座(9)上,并通过所述阀腔(11)相连通,其特征在于,所述泄压装置包括阀体(1)、泄压接头(6 )、阀芯(4 )、顶杆(2 )、弹性部件(3 )、调节螺套(5 )和紧固螺母(7 ),所述阀体(I) 一端与所述泄压接头(6 )连接,另一端内壁设有内螺纹,所述调节螺套(5 )通过该内螺纹连接在所述阀体(I)端部,所述顶杆(2)通过设于顶杆(2)和调节螺套(5)之间的弹性部件(3)的弹性将所述阀芯(4)顶盖住所述泄压接头(6)的出气口,所述阀体(I)与调节螺套(5)连接段(8)的外壁呈锥形斜壁,且设有螺纹,阀体该段(8)还设有径向线槽,所述紧固螺母(7)通过螺纹连接旋套在阀体(I)与调节螺套(5)连接段(8)的外壁上。 A ventilator safety valve, comprising a valve seat (9), an emergency pressure relief device and the air intake means, the valve seat (9) is provided with the ventilator tube (10) communicating the valve chamber (11) , said pressure relief means and emergency air suction device connected to said valve seat (9), and through the valve chamber (11) in communication, characterized in that said pressure relief means comprises a valve body (1), relief fittings (6), the valve body (4), a jack (2), an elastic member (3), adjusting nut (5) and a fastening nut (7), said valve body (I) with the end relief fittings (6), and the other end of the inner wall is provided with an internal thread, said adjustment nut (5) connected to the valve body (I) by an end portion of the inner thread of the plunger (2) provided elasticity member (3) between the mandrel (2) and the adjusting nut (5) to said spool (4) covers the top relief fittings (6) of the outlet, the valve body ( I) and adjusting nut (5) connecting section (8) is tapered outer wall of the inclined wall, and provided with a thread, the section of the valve body (8) is also provided with a radial slot, the fastening nut (7) by screwing the outer wall of the screwed sleeve body (I) and the adjusting nut (5) connecting section (8).
2.根据权利要求1所述的呼吸机安全阀,其特征在于,所述应急空气吸入装置包括隔板(12),隔板(12)上设有连通所述阀腔(11)与阀座外部的通孔(13),所述通孔(13)的阀腔(11)侧覆盖有橡胶膜片(14),所述橡胶膜片(14)固定在所述隔板(12)上。 The ventilator safety valve according to claim 1, characterized in that the emergency air suction means includes a diaphragm (12), said separator communicating with the valve chamber (12) (11) and the valve seat outside the through hole (13), said through hole (13) of the valve chamber (11) side is covered with a rubber membrane (14), said rubber membrane (14) fixed to the partition plate (12).
3.根据权利要求1或2所述的呼吸机安全阀,其特征在于,所述径向线槽为2-8条,且呈对称分布。 The ventilator safety valve of claim 1 or claim 2, characterized in that the radial slot is 2-8 bar, and symmetrically.
4.根据权利要求1或2所述的呼吸机安全阀,其特征在于,所述阀体(I)采用塑料材质制造。 The ventilator safety valve of claim 1 or claim 2, wherein the valve body (I) for producing plastic material.
5.根据权利要求1或2所述的呼吸机安全阀,其特征在于,所述弹性部件(3)为弹簧。 The ventilator safety valve of claim 1 or claim 2, wherein said elastic member (3) is a spring.
CN201420762374.2U 2014-12-08 2014-12-08 Breathing machine safety valve CN204319475U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD804653S1 (en) 2015-06-12 2017-12-05 Emd Millipore Corporation Pressure vessel
US10088398B2 (en) 2015-02-11 2018-10-02 Emd Millipore Corporation Stirred cell and method of using same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10088398B2 (en) 2015-02-11 2018-10-02 Emd Millipore Corporation Stirred cell and method of using same
USD804653S1 (en) 2015-06-12 2017-12-05 Emd Millipore Corporation Pressure vessel

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