CN203469190U - Needle valve for breathing machine - Google Patents
Needle valve for breathing machine Download PDFInfo
- Publication number
- CN203469190U CN203469190U CN201320591673.XU CN201320591673U CN203469190U CN 203469190 U CN203469190 U CN 203469190U CN 201320591673 U CN201320591673 U CN 201320591673U CN 203469190 U CN203469190 U CN 203469190U
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- CN
- China
- Prior art keywords
- needle
- valve
- valve body
- respirators
- hole
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a needle valve for a breathing machine. The needle valve comprises a valve needle (1) and a valve body (5), the valve needle (1) is provided with a transverse pin (3) and a sealing ring (4), the valve body (5) is provided with a vertical pin (2), a gas input end (6) and a gas output end (7), the transverse pin (3) is matched with the vertical pin (2) to limit the adjusting rotating angle of the valve needle (1), the valve needle (1) is meshed with the valve body (5) through threads, and a taper rod (9) is arranged at the lower end of the valve needle (1). The needle valve is applied to the breathing machine, and only about three fourths of a circle is needed for regulating oxygen concentration from 40% to 100% and regulating tidal volume from 0 ml to 1200 ml.
Description
Affiliated technical field
This utility model relates to a kind of reset valve, is especially applicable to the needle-valve of respirator.
Background technology
Needle-valve valve plug is generally aciculiform, mainly as adjusting gas flow.Needle-valve can be realized from being closed to and open the maximum function that can fine regulate continuously.Aciculiform needle is generally with the steel minute hand through quenching, and valve seat is to make with soft materials such as stannum, copper.Its conical surface of sealing dependence between needle and valve body closely cooperates and reaches.Valve body generally adopts single thread, and degree of regulation is higher.
At present, on respirator, use needle-valve to be mainly used in regulating oxygen concentration and tidal volume, when conventional needle-valve applies on respirator, adjusting knob will rotate multi-turn just can make oxygen concentration be adjusted to 100% from 40%, and adjusting knob also will rotate multi-turn could be adjusted to 1200ml from 0ml by tidal volume.
Summary of the invention
In order to overcome existing needle-valve, regulate the problem cumbersome, degree of regulation is poor, this utility model provides a kind of needle-valve of novel used for respirators, can make the adjusting of oxygen concentration and tidal volume more convenient, more accurate.
For reaching above object, this utility model solves the technical scheme that its technical problem adopts: a kind of used for respirators needle-valve, comprise needle and valve body, described needle is provided with lateral pin, sealing ring, valve body is provided with perpendicular pin, gas input, gas output end, and lateral pin coordinates with perpendicular pin, and restriction needle regulates the anglec of rotation, described needle and valve body are by screw-threaded engagement, and described needle lower end is provided with taper rod.
Screw thread described in the utility model is left-handed double thread, and it is 0 ~ 270 ° that needle regulates the anglec of rotation; The tapering of described taper rod is 2.5 °; Described needle upper end is rotary handle, and middle part is provided with lateral pin through hole, and needle is provided with left-handed double thread, and needle bottom is provided with seal groove, places sealing ring in seal groove, and needle lower end is taper rod, matches with the bottom of valve body; Described valve body top is provided with low water, and low water is provided with perpendicular pin installing hole, and valve body is provided with central through hole, central through hole upper end is left hand thread, and lower end is gas input, and valve body one side is provided with gas output end, top is provided with screwed hole, and described screwed hole is three, is distributed in the top of valve body.
Adopt after above technical scheme, the beneficial effects of the utility model are: this utility model is applied on respirator, by oxygen concentration from 40% being adjusted to 100%, tidal volume is adjusted to 1200ml from 0ml only need to approximately 3/4ths circles.Simultaneously the double thread of little needle valve body is for conventional needle valve body adopts single thread, and degree of regulation is more accurate, regulates oxygen concentration, tidal volume more convenient, more accurate.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, this utility model is further described.
Fig. 1 is this utility model structural representation.
Fig. 2 is this utility model needle structure schematic diagram.
Fig. 3 is this utility model valve body structure schematic diagram.
In figure: 1, needle, 2, perpendicular pin, 3, lateral pin, 4, sealing ring, 5, valve body, 6, gas input, 7, gas output end, 8, seal groove, 9, taper rod, 10, screwed hole.
The specific embodiment
Shown in Fig. 1, a kind of used for respirators needle-valve of this utility model, comprise needle 1 and valve body 5, described needle 1 is provided with lateral pin 3, sealing ring 4, valve body 5 is provided with perpendicular pin 2, gas input 6, gas output end 7, and lateral pin 3 coordinates with perpendicular pin 2, and restriction needle 1 regulates the anglec of rotation, described needle 1 is with valve body 5 by screw-threaded engagement, and described needle 1 lower end is provided with taper rod 9.
Screw thread described in the utility model is left-handed double thread, and it is 0 ~ 270 ° that needle 1 regulates the anglec of rotation; The tapering of described taper rod 9 is 2.5 °; Described sealing ring 4 is arranged in the seal groove 8 of needle 1.
Shown in Fig. 2, described needle 1 upper end is rotary handle 1-1, and middle part is provided with lateral pin through hole 1-2, needle 1 is provided with left-handed double thread 1-3, and needle 1 bottom is provided with seal groove 8, the interior placement sealing ring 4 of seal groove 8, needle 1 lower end is taper rod 9, matches with the bottom of valve body 5.
Shown in Fig. 3, described valve body 5 tops are provided with low water 5-1, low water 5-1 bottom is provided with perpendicular pin installing hole 5-3, valve body 5 is provided with central through hole, and central through hole is taper, matches with needle 1, central through hole upper end is left hand thread 5-2, lower end is gas input 6, and gas input 6 is connected with pipe joint; Valve body 5 one sides are provided with gas output end 7, and gas output end 7 is connected with pipe joint; Valve body 5 tops are provided with screwed hole 10, and described screwed hole 10 is three, and the top that is distributed in valve body 5 triangular in shape, is firmly connected on respirator by screw.
The concrete effect of each parts of this utility model needle:
1-1: rotary handle, for the anglec of rotation of user adjusting needle.
1-2: lateral pin through hole, for lateral pin is installed, match with the perpendicular pin on valve body, work to control adjusting angle.
1-3: adopt left-handed double thread, than common screw thread, there is higher precision, higher stability, make needle-valve can be in the scope of 0 °-270 ° when regulating the adjusting of stable and uniform.
1-4 and 1-6: and valve body 5-5 is matched in clearance, best bright finish makes the contact surface can be not stuck, cooperatively interacts simultaneously, forms a groove, is used for placing sealing ring.
8: place the groove of sealing ring, sealing ring is entered after valve body, the thickness after compression is just in time slotted size, can play sealing function.
9: be a taper rod, coordinate valve body 5-6, by the lifting of needle, can control the turnover of air-flow, and can regulate uniformly the size of air-flow.
The concrete effect of each parts of this utility model valve body:
5-1: low water, when metering pin valve makes tolerance become large, needle can move up, between needle-valve and respirator shell, need gapped, could free adjustment.
5-2: left hand thread nut, with the 1-3 left hand thread engagement of needle.
5-3: perpendicular pin installing hole, for perpendicular pin is installed, play the role of positioning, making needle-valve is 0 °-270 ° from the angle that is closed to maximum opening and regulates.
5-4: escape, guarantees that left-handed double thread can rotate to the end.
5-5: with needle 1-4 and 1-6 be matched in clearance, the simultaneously sealing ring inwall contact in hole therewith, seals.
5-6: coordinate 9 of needle, can control the switch of air-flow, and can regulate uniformly the size of air-flow.
6: gas input, installation pipeline joint, needs the gas regulating to enter thus needle-valve.
7: gas output end, installation pipeline joint, the gas after adjusting flows out needle-valve thus.
10: screwed hole, is used for needle-valve to be fixed on respirator.
This utility model needle-valve is in closed condition: left-handed during to minimum point when the needle 1 of needle-valve, needle 1 fits like a glove with the centre bore of valve body 5, and gas input 6 is blocked, and forms sealing state, and output tolerance is now 0mL.
This utility model needle-valve is in open mode: when the needle 1 of needle-valve is during by 270 ° of closed condition dextrorotation, lateral pin 3 on needle-valve can be subject to stopping of perpendicular pin 2, now needle 1 rises, and between the taper rod 9 of needle 1 lower end and the centre bore of valve body 5, has gap, and interval area is 1,1mm
2gas in pipeline enters valve body 5 by gas input 6, gas after adjusting is exported by gas output end 7, enter in pipeline, now the input pressure of needle-valve be 0,2MPa, tidal volume is 1200mL, and the sealing ring on needle 14 guarantees that the gas after adjusting can be from the gap location leakage between needle 1 and valve body 5 simultaneously.
Claims (6)
1. a used for respirators needle-valve, it is characterized in that: comprise needle (1) and valve body (5), described needle (1) is provided with lateral pin (3), sealing ring (4), valve body (5) is provided with perpendicular pin (2), gas input (6), gas output end (7), lateral pin (3) coordinates with perpendicular pin (2), restriction needle (1) regulates the anglec of rotation, and described needle (1) is with valve body (5) by screw-threaded engagement, and described needle (1) lower end is provided with taper rod (9).
2. a kind of used for respirators needle-valve according to claim 1, is characterized in that: described screw thread is left-handed double thread, and it is 0 ~ 270 ° that needle (1) regulates the anglec of rotation.
3. a kind of used for respirators needle-valve according to claim 1, is characterized in that: the tapering of described taper rod (9) is 2.5 °.
4. a kind of used for respirators needle-valve according to claim 1, it is characterized in that: described needle (1) upper end is rotary handle (1-1), middle part is provided with lateral pin through hole (1-2), needle (1) is provided with left-handed double thread (1-3), needle (1) bottom is provided with seal groove (8), in seal groove (8), place sealing ring (4), needle (1) lower end is taper rod (9), matches with the bottom of valve body (5).
5. a kind of used for respirators needle-valve according to claim 1, it is characterized in that: described valve body (5) top is provided with low water (5-1), low water (5-1) is provided with perpendicular pin installing hole (5-3), valve body (5) is provided with central through hole, central through hole upper end is left hand thread (5-2), lower end is gas input (6), and valve body (5) one sides are provided with gas output end (7), and top is provided with screwed hole (10).
6. a kind of used for respirators needle-valve according to claim 1, is characterized in that: described screwed hole (10) is three, is distributed in the top of valve body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320591673.XU CN203469190U (en) | 2013-09-25 | 2013-09-25 | Needle valve for breathing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320591673.XU CN203469190U (en) | 2013-09-25 | 2013-09-25 | Needle valve for breathing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203469190U true CN203469190U (en) | 2014-03-12 |
Family
ID=50217613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320591673.XU Expired - Lifetime CN203469190U (en) | 2013-09-25 | 2013-09-25 | Needle valve for breathing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203469190U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495254A (en) * | 2013-09-25 | 2014-01-08 | 泰州市久信医疗科技有限公司 | Needle valve used for breathing machine |
-
2013
- 2013-09-25 CN CN201320591673.XU patent/CN203469190U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495254A (en) * | 2013-09-25 | 2014-01-08 | 泰州市久信医疗科技有限公司 | Needle valve used for breathing machine |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |