CN103877657A

CN103877657A - Rotary quick-plugging three-way valve

Info

Publication number: CN103877657A
Application number: CN201310588649.5A
Authority: CN
Inventors: 黄超; 杨建利; 吴其玉
Original assignee: Wuhan Weo Science & Technology Development Co Ltd
Current assignee: Wuhan Weo Science & Technology Development Co Ltd
Priority date: 2013-11-21
Filing date: 2013-11-21
Publication date: 2014-06-25
Anticipated expiration: 2033-11-21
Also published as: CN103877657B

Abstract

The invention designs a rotary quick-plugging three-way valve comprising a base, a rotary handle, a connecting block, a slider, a torsion spring, a quick-plugging O-shaped ring, a seal O-shaped ring, and a relief valve. The base and the connecting block are connected by means of thread screwing-in, groove fastening, and bonding or welding. Each of the base and the rotary handle is provided with a fastening groove. The torsion spring sleeves a vertical post of the base, one end of an extension of the torsion spring is fastened to the fastening groove of the base, and the other end of the extension of the torsion spring is fastened to the fastening groove of the rotary handle, and the base and the rotary handle are movably connected through the torsion spring. The quick-plugging O-shaped ring is disposed in the vertical post of the base. The slider is movably disposed along the axis of the base. The seal O-shaped ring is arranged at the bottom of a flowmeter connector of the connecting block. The relief valve is disposed in a relief valve hole on one side of the connecting block. The rotary quick-plugging three-way valve has the advantages that atomizing and wetting can be quickly switched, one air way is used for both atomizing and wetting, potential safety hazards caused by nursing staff mistaking an atomizing connector as an oxygen outlet can also be avoided, and operation by rotational plugging is convenient and easier.

Description

The fast three-way valve of inserting of a kind of rotation

Technical background

The invention belongs to medical instruments field, specially refer to the fast three-way valve of inserting of a kind of rotation.

Background technology

Clinical while carrying out respiratory therapy, oxygen inhalation therapy and nebulae inhalation usually need to hocket, oxygen inhalation therapy need carry out atomization processing, nebulae inhalation does not need to carry out humidifying processing, the two can not flexible conversion, for head it off, applicant discloses a kind of Quick plug three-way valve special for oxygen inhalation (publication number: CN 202263277 U).This invents in clinical use, finds not to be drawn out easily after push-in humidification device interface is connected with humidification device, has increased nurse's labor intensity, and atomization interface to be easily mistaken as be oxygen outlet, cause maloperation.

In view of above deficiency, a kind of fast three-way valve of inserting of being convenient to plug and can avoiding maloperation of special hope invention.

Summary of the invention

The invention provides the fast three-way valve of inserting of a kind of rotation, be intended to solve the three-way valve plug inconvenience existing in existing respiratory therapy, and atomization interface is easily by the problem as oxygen outlet.In order to realize above object, the technical scheme of taking is:

The present invention has designed a kind of rotation and has inserted soon three-way valve, comprise base, swing handle, Connection Block, slide block, torsion spring, the fast O type circle of inserting, sealing O type circle and relief valve, base is closely connected with Connection Block, on base and swing handle, respectively establish a draw-in groove, torsion spring set is on the column of base, extension one end is stuck on the draw-in groove of base, the extension other end is stuck on the draw-in groove of swing handle, base and swing handle are movably connected by torsion spring, the fast O type circle of inserting is positioned in the column of base, on the axis that is arranged on base of slide block activity, sealing O type circle is positioned over the effusion meter interface bottom of Connection Block, relief valve is positioned in the pressure release valve opening of Connection Block one side.

As concrete technical scheme, described base comprises chute, draw-in groove and column, and middle part is hollow structure.

As further technical scheme, described column outer wall is screw thread, draw-in groove or level and smooth, and outer wall is provided with the latch that prevents that torsion spring from ejecting.

As further technical scheme, described chute has position limiting structure, and this structure makes the slide block can be movable in the scope of design.

As concrete technical scheme, stretch out at described torsion spring two ends, and extension is divided into the angle that is less than the straight angle.

As concrete technical scheme, described swing handle comprises draw-in groove and gathering sill, and gathering sill is at least one, is arranged on the axis of swing handle, becomes to be less than the angle of the straight angle with axis, and its vertical angle is established a draw-in groove.

As further technical scheme, described slide block is at least one, and one end arranges guide post, guide post and described gathering sill interference fit.

As concrete technical scheme, described Connection Block comprises effusion meter interface, pressure release valve opening and projection, Connection Block middle part is hollow structure, hollow structure internal diameter is identical with base hollow structure internal diameter, effusion meter interface inwall is screw thread, pressure release valve opening communicates with Connection Block hollow structure, and projection outer wall is screw thread, draw-in groove or smooth structure.

As further technical scheme, described base and described Connection Block by being threaded into, draw-in groove sticks into, mode bonding or welding is closely connected.

Beneficial effect of the present invention is: can realize the quick conversion of atomization and humidifying, atomization and humidifying share an air flue and can avoid again nursing staff's mistake that atomization interface is caused to potential safety hazard as oxygen outlet, and the mode of rotation plug is easy to operate more laborsaving.

Brief description of the drawings

Fig. 1 is general assembly structural representation of the present invention.

Fig. 2 is component structural schematic diagram of the present invention.

Detailed description of the invention

With reference to Fig. 1, the fast three-way valve of inserting of one rotation, comprises base 1, swing handle 2, Connection Block 3, slide block 4, torsion spring 5, inserts O type circle 6 soon, seals O type circle 7 and relief valve 8.

With reference to Fig. 2, base 1 comprises chute 11, draw-in groove 12 and column 13, chute 11 is located on the axis of base 1, have position limiting structure 111, base 1 middle part is hollow structure, and draw-in groove 12 is vertical with chute 11, column 13 outer walls are provided with the latch 131 that prevents that torsion spring 5 from ejecting, and column 13 outer walls are screw thread, draw-in groove or smooth structure, and what in Fig. 2, provide is helicitic texture.

With reference to Fig. 2, swing handle 2 comprises draw-in groove 21 and gathering sill 22, and gathering sill 22 is located on the axis of swing handle 2, draw-in groove 21 and gathering sill 22 degree in a vertical angle.

Continue with reference to Fig. 2, Connection Block 3 comprises effusion meter interface 31, pressure release valve opening 32 and projection 33, and Connection Block 3 is hollow structure, and internal diameter is consistent with base 1 hollow structure internal diameter.Effusion meter interface 31 inwalls are screw thread, can dock with proving flowmeter.Pressure release valve opening 32 communicates with Connection Block 3 hollow structures.Projection 33 outer walls are screw thread, draw-in groove or smooth structure, can be connected by screw thread or draw-in groove with base 1 upper pillar stand 13, also can connect by mode bonding or welding.

Continue with reference to Fig. 2, slide block 4 one end are provided with guide post 41, guide post 41 can with described gathering sill 22 interference fit.

Continue with reference to Fig. 2, stretch out at torsion spring 5 two ends, and extension is divided into the angle that is less than the straight angle.

The slide block of injection formed 4 is positioned on chute 11, be positioned over the inside of the column 13 of base 1 by inserting soon O type 7, torsion spring 5 is packed into column 13, extension one end of torsion spring 5 is stuck in the draw-in groove 12 on base 1, swing handle 2 is positioned on base 1, the other end of torsion spring 5 extensions is broken into two with one's hands in the draw-in groove 21 being stuck on swing handle 2, and ensure that guide post 41 is just in time stuck in gathering sill 22 inside, now torsion spring 5 forms certain pre-police strength, by the projection of Connection Block 3 33 columns 13 by being threaded into, draw-in groove sticks into, mode bonding or welding is closely connected, sealing O type circle 7 is positioned in effusion meter interface 31, finally relief valve 8 is placed in pressure release valve opening 32.

While carrying out oxygen inhalation therapy, need to add wet oxygen, effusion meter interface 31 is docked with effusion meter, humidification device is inserted to fast inserting in O type circle 6, humidification device top conical surface part is backed down the slide block 4 originally clamping due to the pre-police strength of torsion spring 5, in the time that conical surface part enters the fast slotting O type circle 6 of arrival completely, due to the effect of torsion spring 5, swing handle 2 turns round, on it, gathering sill 22 is with guide post 41 on movable slider 4 inwardly to move, slide block 4 resiliences clamp, now the humidification device top conical surface fits tightly with the fast O type circle 6 of inserting, ensure its air-tightness, after clamping, slide block 4 prevents that humidification device from getting loose downwards, when the complete need of oxygen uptake take off humidification device, only need be rotated counterclockwise swing handle 2, torsion spring 5 drives gathering sill 22 to move, guide rod 41 on slide block 4 unclamps outward under the effect of gathering sill 22, humidification device is tear-away, stop the rotation and unclamp swing handle 2, swing handle 2 is kept in the center, band movable slider 4 is kept in the center.

While carrying out nebulae inhalation, matching used atomization joint is directly inserted to fast inserting in O type circle 6, because atomization joint is longer, joint can arrive at sealing O type circle 7 through the fast O type circle 6 of inserting, and is directly communicated with source of the gas, realizes atomization, the bottom of joint has and the similar structure in humidification device top, rotation swing handle 4, atomization joint comes off, and completes atomization.

Claims

1. the fast three-way valve of inserting of rotation, comprise base (1), swing handle (2), Connection Block (3), slide block (4), torsion spring (5), the fast O type circle (6) of inserting, sealing O type circle (7) and relief valve (8), base (1) is closely connected with Connection Block (3), on base (1) and swing handle (2), respectively establish a draw-in groove (12) and (21), torsion spring (5) is enclosed within on the column (13) of base (1), extension one end is stuck on the draw-in groove (12) of base (1), the extension other end is stuck on the draw-in groove of swing handle (2) (21), base (1) and swing handle (2) are movably connected by torsion spring (5), the fast O type circle (6) of inserting is positioned in the column (13) of base (1), on the axis that is arranged on base (1) of slide block (4) activity, sealing O type circle (7) is positioned over effusion meter interface (31) bottom of Connection Block (3), relief valve (8) is positioned in relief valve (8) hole of Connection Block (3) one sides.

2. the fast three-way valve of inserting of rotation, is characterized in that, base (1) comprises chute (11), draw-in groove (12) and column (13), and middle part is hollow structure.

3. the fast three-way valve of inserting of rotation, is characterized in that, column (13) outer wall is screw thread, draw-in groove or smooth structure, and outer wall is provided with the latch (131) that prevents that torsion spring (5) from ejecting.

4. the fast three-way valve of inserting of rotation, is characterized in that, chute (11) has the position limiting structure (111) that makes slide block (4) activity in scope of design.

5. the fast three-way valve of inserting of rotation, is characterized in that, stretch out at torsion spring (5) two ends, and extension is divided into the angle that is less than the straight angle.

6. the fast three-way valve of inserting of rotation, is characterized in that, swing handle (2) comprises draw-in groove (21) and gathering sill (22), gathering sill (22) is at least one, be arranged on the axis of swing handle (2), become to be less than straight angle angle with axis, its vertical angle is established a draw-in groove (21).

7. the fast three-way valve of inserting of rotation, is characterized in that, slide block (4) is at least one, and one end arranges guide post (41), guide post (41) and described gathering sill (22) interference fit.

8. the fast three-way valve of inserting of rotation, it is characterized in that, Connection Block (3) comprises effusion meter interface (31), pressure release valve opening (32) and projection (33), Connection Block (3) middle part is hollow structure, hollow structure internal diameter is identical with base hollow structure internal diameter, effusion meter interface (31) inwall is screw thread, and pressure release valve opening (32) communicates with Connection Block (3) hollow structure, and projection (33) outer wall is screw thread, draw-in groove or smooth structure.

9. the fast three-way valve of inserting of rotation, is characterized in that, base (1) and Connection Block (3) by being threaded into, draw-in groove sticks into, mode bonding or that weld is closely connected.