CN103899609A - Interlocking device and interlocking method for anesthetic evaporators - Google Patents
Interlocking device and interlocking method for anesthetic evaporators Download PDFInfo
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- CN103899609A CN103899609A CN201210581573.9A CN201210581573A CN103899609A CN 103899609 A CN103899609 A CN 103899609A CN 201210581573 A CN201210581573 A CN 201210581573A CN 103899609 A CN103899609 A CN 103899609A
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Abstract
The invention discloses an interlocking device for anesthetic evaporators. The interlocking device comprises a dial, a cam and a limiting device. The cam and the dial can coaxially rotate, the limiting device which is used for preventing the dial in a non-working state from rotating is matched with the cam and comprises a lever and a tightening shaft, the lever is arranged on a side of the tightening shaft in a swinging manner, a lever swinging limiting portion is arranged between the lever and the tightening shaft, a spiral groove is formed in the periphery of the cam, and a pulley which is matched with the spiral groove is arranged at an end of the lever. The interlocking device has the advantages that the lever is constrained by the limiting portion from swinging when the dial is in the non-working state, so that the cam and the dial can be constrained from rotating, the anesthetic evaporators can be assuredly constrained from being started, leakage of the anesthetic evaporators can be prevented, and the personal safety of operators and the environmental safety can be guaranteed.
Description
Technical field
The present invention relates to Anesthesia machine technical field, relate in particular to a kind of anesthesia evaporator interlock, and this interlock carries out chain method to anesthesia evaporator.
Background technique
Anesthesia evaporator (having another name called: anesthesia volatilization tank, anesthetic vaporizer) is the important component part of Anesthesia machine, and its quality not only indicates the manufacture level of Anesthesia machine, is also related to effect and the success or failure of inhalation anesthesia, is directly involved in patient's safety.The basic principle of anesthesia evaporator is to utilize the temperature of surrounding environment and the variation of thermal source, anaesthetic is become to boil-off gas, and by a certain amount of carrier gas, wherein a part of gas carries off saturated anesthetic gases, become the air-flow that has certain density anesthetic vapor, directly enter anaesthetic circuit.According to the difference of dosing kind, generally can be divided into 5 kinds of vaporizers: enflurane, Isoflurane, Sevoflurane, fluothane, desflurane.
Existing anesthesia evaporator scarcely has interlock, as shown in Figure 1, the switch gear of existing Anesthesia machine vaporizer, comprise dial 110, be fixedly installed cam 111 at the downside of dial 110, and cam 111 is coaxial rotation with dial 110, cam 111 peripheries arrange helical groove, in helical groove, coupling arranges pulley 112, one side of pulley 112 arranges pushing depression bar 113, and pulley 112 can freely rotate along the axle center of pushing depression bar 113, pushing depression bar 113 is fixedly connected with push pedal 115 away from one end of pulley 112, push pedal 115 two ends are all fixedly connected with anesthesia evaporator by stop screw 117, on stop screw 117, be provided for the spring 118 that push pedal 115 is resetted, push pedal 115 centers are run through setting and are tightened axle 114, push pedal 115 downsides are provided for the bypass valve 116 being communicated with anesthesia evaporator.In the time that needs are opened anesthesia evaporator, be rotated counterclockwise dial 110, dial 110 is with moving cam 111 to be also rotated counterclockwise, cam 111 contacts with the pulley 112 that pushing depression bar 113 one end arrange, pulley 112 rises on the inclined-plane of the helical groove on cam 111, push depression bar 113 and be also propradation near one end of pulley 112, utilize lever principle, pushing depression bar 113 is decline state away from one end of pulley 112, pushing push pedal 115 moves downward, make anesthesia evaporator and bypass valve 116 UNICOMs, and be locked with bypass valve 116 by tightening axle 114 rotations, in the time that needs are closed anesthesia evaporator, counterrotating dial 110, unclamps simultaneously and tightens axle 114, can make anesthesia evaporator separate with bypass valve 116.
There is following defect in this anesthesia evaporator:
1, in the situation that anesthesia evaporator tightens on axle and Anesthesia machine that bypass valve is not locked, dial on anesthesia evaporator can be opened, now anesthetic gases can leak from anesthesia evaporator and bypass valve surface of contact, causes the pollution to environment and the injury to human body;
2, in the situation that anesthesia evaporator dial is not closed, tighten axle and can rotate and make the bypass valve of vaporizer from Anesthesia machine to depart from, cause the anesthetic gases in vaporizer to flow out, also can damage to environment with to human body.
Although also have some anesthesia evaporators to there is chain function, but the interlock complex structure of its setting, assembling and reliability are poor, therefore simple in structure in the urgent need to one, the good interlock of assembling and reliability carries out chain to anesthesia evaporator, improve safety in utilization and the reliability of anesthesia evaporator.
Summary of the invention
One object of the present invention, is to provide a kind of anesthesia evaporator interlock, it is simple in structure, assembling and reliability better, can effectively prevent that anesthesia evaporator from opening under off working state, ensure that operator's personal safety and environment is not contaminated.
One object of the present invention; be to provide a kind of anesthesia evaporator interlock to carry out chain method to anesthesia evaporator; it utilizes interlock simple and reliable for structure to carry out the protection under off working state to anesthesia evaporator; can not only prevent that anesthesia evaporator from leaking under off working state; also reduce operation easier simultaneously, save the operating time.
For reaching this object, the present invention by the following technical solutions:
A kind of anesthesia evaporator interlock, comprises dial and the cam with its coaxial rotation, it is characterized in that, the limit stoper for preventing that dial off working state from rotating that also comprising matches with described cam arranges.
As a kind of preferred version of anesthesia evaporator interlock, described limit stoper comprises lever and tightens axle, described in being arranged at, described lever swing tightens a side of axle, described lever and described in tighten and between axle, be provided with lever swing limited part, described cam periphery arranges spiral chute, and the end of described lever is provided with the pulley matching with described spiral chute.
Preferably, described limit stoper comprises lever and tightens axle, described in being arranged at, described lever swing tightens a side of axle, described lever and described in tighten and between axle, be provided with lever swing limited part, described cam periphery arranges spiral chute, the setting that matches of described lever end and described spiral chute, and be sliding friction setting between described lever end and described spiral chute.
Be more preferably, described lever is circular rod member.Lever adopts cylindrical structural to have two advantages herein, and first, friction can reduce lever end and slide in spiral chute time, make cam rotate the swing that realizes more smoothly lever; The second, the processing of the cylindrical body of rod is simpler, and manufacturing process is few.
As a kind of preferred version of anesthesia evaporator interlock, described lever has lever first end and lever the second end, described moveable roller is located at described lever first end, described tighten axle be provided with can with the limiting board of its coaxial rotation, described limited part comprises and is convexly set in the lever boss of described lever the second end and is arranged with limiting board groove peripheral in described limiting board and that match with described lever boss.By limiting board groove is set on limiting board, and at the corresponding limiting board groove of lever the second end, lever boss is set, make in the time that anesthesia evaporator is in running order, when tightening axle and driving limiting board groove on limiting board to turn to the position corresponding with lever boss, lever energy swings freely, in the time of off working state, need to limit lever swing time, only need to drive the limiting board groove on limiting board to rotate the position of staggering lever boss by tightening axle, just can realize the restriction of lever swing work.
Preferably, described pulley is fixed on the end of described lever first end by position-limited nail, and described pulley can rotate around the axle center of described lever.
Be more preferably, described pulley is movably arranged on by rotating shaft the side that described lever first end contacts with spiral chute, makes to be between lever and spiral chute rolling friction state.By pulley is rotated and is arranged in the spiral chute of cam, can reduce pulley and spiral fluted friction, make cam in the time rotating, pulley can drive lever first end to rise smoothly.
Be more preferably, described lever is circular rod member, it will be understood by those skilled in the art that the rod member of other shapes that can realize swing is also applicable to the present invention, for example, and square rod member.Lever herein, because adopting pulley to contact with spiral chute, does not therefore have great restriction to the structure of lever, only has and can realize oscillating function.
As a kind of preferred version of anesthesia evaporator interlock, described limit stoper also comprises heart frame, describedly tighten that axle is rotating to be located on described heart frame, described tighten a side of axle and be positioned on described heart frame offer lever mounting groove, described lever is movably hinged in lever mounting groove, and described lever first end extends to outside lever mounting groove, described lever the second end is positioned at lever mounting groove.
Preferably, described lever is rotated and is arranged in described lever mounting groove by bearing pin.
Further, on described heart frame, arrange multiple for by heart frame and the fixing heart frame tapped hole of anesthesia evaporator.
Preferably, described lever mounting groove arranges two described heart frame tapped holes away from a side that tightens axle, and described lever mounting groove also arranges two described heart frame tapped holes near a side that tightens axle.
As a kind of preferred version of anesthesia evaporator interlock, the described axle that tightens has the axle of tightening first end and tightens axle the second end, the described axle first end that tightens is provided with the spiral chute that tightens that is mounted on Anesthesia machine for anesthesia evaporator, described in tighten axle the second end and be fixed with rotatory handling.
Preferably, described in, tighten axle the second end and connect described rotatory handling by attachment screw.
As a kind of preferred version of anesthesia evaporator interlock, the described periphery that tightens axle is concaved with and tightens axle restraining groove, the center of described limiting board is provided with for tightening the limiting board center hole that axle passes, and the hole wall of described limiting board center hole is centripetal to be convexed with described and tighten the spacing flange that axle restraining groove matches.
As a kind of preferred version of anesthesia evaporator interlock, the described outer protuberance that is arranged with that tightens axle, the center of described limiting board is provided with for tightening the limiting board center hole that axle passes, the centrifugal groove matching with described protuberance that is concaved with of hole wall of described limiting board center hole.
As a kind of preferred version of anesthesia evaporator interlock, the outer putting groove being connected with described spiral chute that is arranged with of described cam, described spiral chute and described putting groove joint have the rotation entrance being obliquely installed, so that described cam when rotated, pulley can slip in spiral chute by rotating entrance from putting groove.The initial position of pulley is positioned at putting groove, in the time of rotation scale, the rotation of dial band moving cam, the pulley being placed in putting groove is slipped in spiral chute by the rotation entrance tilting, position that like this can pulley raises, then drive the position of lever first end to raise, and then the position of lever the second end is reduced, if anesthesia evaporator is in off working state, lever the second end is because the restriction of limiting board cannot swing so, lever first end cannot raise so, be that cam and dial all cannot rotate, ensure not to be unlocked under anesthesia evaporator off working state, if anesthesia evaporator is in running order, limiting board groove rotates to the lever lug boss position place of lever the second end, lever the second end can be swung freely, lever first end can raise so, be that cam and dial all can rotate, guarantee anesthesia evaporator is normally opened.
As a kind of preferred version of anesthesia evaporator interlock, described cam arranges concentration adjustment valve away from a side of described dial, and described concentration adjustment valve and described cam, described dial can coaxial rotation.Concentration adjustment valve is the parts for opening anesthesia evaporator, and therefore the rotational of dial drives concentration adjustment valve to rotate, and after concentration adjustment valve rotates, opens anesthesia evaporator.
Preferably, described cam center arranges cam center hole, described cam center hole place arranges cam keyway away from center, and on described cam center hole one side, described cam, annular arranges multiple connecting threads hole, and described cam is connected with dial is detachable by screw and connecting thread hole.
Be more preferably, on described cam, annular arranges three described connecting thread holes.
Preferably, described concentration adjustment valve top center arranges coupling shaft, described coupling shaft passes described cam center hole, and by connecting pin, described cam and described concentration adjustment valve is carried out to pin joint, makes described dial, cam and concentration adjustment valve three energy coaxial rotation.
Further, described heart frame is provided for limiting the first ejector pin and second ejector pin of adjacent anesthesia evaporator work away from a side of rotatory handling, described the first ejector pin comprises first end and the second end, described the second ejector pin comprises first end and the second end, the first end of the first end of described the first ejector pin and the second ejector pin is oppositely arranged, and be provided with vertebral body structure, the second end of described the first ejector pin and the second end of the second ejector pin are all connected on anesthesia evaporator by elastic member, and are connected with the ejector pin of adjacent anesthesia evaporator through anesthesia evaporator;
Described lever the second end end arranges trapezoidal addendum cone, and described trapezoidal addendum cone is arranged at a side of the first end of described the first ejector pin and the first end joint of the second ejector pin, for described the first ejector pin is separated with the second ejector pin.
The chamfer length of described trapezoidal addendum cone and dial rotate to the distance of Cmax position and match, be that the chamfer length of trapezoidal addendum cone and the maximum displacement of lever the second end swing match, so that described dial while rotating to Cmax position described in trapezoidal addendum cone still with the first ejector pin with first end and the first end of the second ejector pin contact, make the first ejector pin and the separated state of the second ejector pin.
When described dial does not rotate to concentration position, described trapezoidal addendum cone is the tangent line place near the outer side wall of heart frame close to the first ejector pin and the second ejector pin; When described dial rotates to zero degree position, described trapezoidal addendum cone starts to separate the first ejector pin and the second ejector pin; When described dial rotates to Cmax position, described trapezoidal addendum cone separates farthest by the distance between the first end of the first ejector pin and the first end of the second ejector pin, and trapezoidal addendum cone is stuck between the first end of described the first ejector pin and the first end of the second ejector pin always.
In the time that anesthesia evaporator is worked, lever the second end drives trapezoidal addendum cone to move to the first ejector pin and the second ejector pin place, the first end of the first ejector pin is separated with the first end of the second ejector pin, the second ejector pin of the anesthesia evaporator that the two port of the first ejector pin is adjacent pushes up pressure, make the contact displacement of the first ejector pin in adjacent anesthesia evaporator and the second ejector pin moving, be that the malposition of trapezoidal addendum cone is to contact position, even if rotating, the trapezoidal addendum cone of adjacent anesthesia evaporator also cannot make the first ejector pin separate with the second ejector pin, therefore lever the second end cannot rotate, corresponding dial and concentration adjustment valve also cannot screw, cause adjacent anesthesia evaporator to open, in like manner, the first ejector pin of the anesthesia evaporator that the two port of the second ejector pin is adjacent pushes up pressure, make equally the contact displacement of the first ejector pin in adjacent anesthesia evaporator and the second ejector pin moving, be that the malposition of trapezoidal addendum cone is to contact position, even if rotating, the trapezoidal addendum cone of adjacent anesthesia evaporator also cannot make the first ejector pin separate with the second ejector pin, therefore lever the second end cannot rotate, and corresponding dial and concentration adjustment valve also cannot screw, and cause adjacent anesthesia evaporator to open.
Preferably, described elastic member is spring.
Anesthesia evaporator is carried out to a chain method,
Step 1, anesthesia evaporator interlock described above is installed on anesthesia evaporator;
In the time that needs are closed anesthesia evaporator, make dial keep being reversed the state of rotation, dial is with moving cam and the rotation of concentration adjustment valve synchronous backward simultaneously, now concentration adjustment valve cuts out anesthesia evaporator, pulley in spiral chute is slipped in putting groove by the rotation entrance tilting simultaneously, along with the position of pulley reduces, the position of lever first end also reduces, according to lever principle, the position of lever the second end raises, get back to initial position, make rotatory handling keep counterrotating predetermined angular, tightening spiral chute and Anesthesia machine departs from, tighten axle and drive this predetermined angular of limiting board counterrotating, now limiting board groove and lever boss stagger, make lever the second end cannot show lever mounting groove.
Preferably, predetermined angular is 90 °.Preferably adopt this angle, can be more conducive to rotation, and angle of swing is more easily controlled.
Contrast prior art, beneficial effect of the present invention is: by the limit stoper matching with cam is set, make dial in the time that off working state is rotated, be subject to the restriction of limit stoper, can not arbitrarily rotate, ensure that anesthesia evaporator is not unlocked, avoid anesthesia evaporator to occur the situation of leaking; By limit stoper be set to the to match lever that arranges and tighten axle, utilization tightens the swing of the limited part restriction lever between axle and lever, lever cannot swing, the cam that is arranged on so lever first end just cannot rotate, therefore dial is just limited to rotate so, and then ensure that anesthesia evaporator is not unlocked, and avoid anesthesia evaporator to occur the situation of leaking, ensure operator's personal safety and Environmental security.
Brief description of the drawings
Fig. 1 is the structural representation of existing anesthesia evaporator interlock;
Fig. 2 is the outline drawing of the anesthesia evaporator that comprises the anesthesia evaporator interlock described in embodiment one;
Fig. 3 is the structural representation of the anesthesia evaporator interlock described in embodiment one;
Fig. 4 is the structural representation of the cam in Fig. 3;
Fig. 5 is the structural representation that tightens axle in Fig. 3;
Fig. 6 is the structural representation of limiting board in Fig. 3;
Fig. 7 is rotatory handling in Fig. 3, pulley, lever, heart frame, tighten the assembling schematic diagram of axle and limiting board;
Fig. 8 is the partial schematic diagram (with the ejector pin in anesthesia evaporator) of Fig. 7;
Fig. 9 is the structural representation of lever in Fig. 7.
In Fig. 1:
110, dial; 111, cam; 112, pulley; 113, pushing depression bar; 114, tighten axle; 115, push pedal; 116, bypass valve; 117, stop screw; 118, spring.
In Fig. 2～9:
1, evaporator body; 2, dial; 3, rotatory handling;
4, cam; 41, spiral chute; 42, putting groove; 43, rotation entrance; 44, cam center hole; 45, connecting thread hole; 46, cam keyway;
5, concentration adjustment valve; 6, pulley;
7, lever; 71, lever first end; 72, lever the second end; 73, lever boss; 74, trapezoidal addendum cone;
8, heart frame; 81, lever mounting groove; 82, heart frame tapped hole;
9, tighten axle; 91, tighten axle first end; 92, tighten axle the second end; 93, tighten spiral chute; 94, tighten axle restraining groove;
10, limiting board; 101, limiting board center hole; 102, spacing flange; 103, limiting board groove;
11, bearing pin; 12, position-limited nail; 13, attachment screw; 14, the first ejector pin; 15, the second ejector pin.
Embodiment
Embodiment one:
As shown in Fig. 2～9, anesthesia evaporator interlock in this embodiment, comprise the dial 2 that is arranged on evaporator body 1 top, in a side of dial 2, evaporator body 1 inside arranges cam 4, be provided for opening the concentration adjustment valve 5 of anesthesia evaporator in the side away from dial 2 of cam 4, dial 2, cam 4 and concentration adjustment valve 5 are all coaxial rotation setting, in cam 4 one sides, the limit stoper for preventing that dial 2 off working states from rotating that the interior setting of evaporator body 1 matches with cam 4, by the limit stoper matching with cam 4 is set, make dial 2 in the time that off working state is rotated, be subject to the restriction of limit stoper, can not arbitrarily rotate, ensure that anesthesia evaporator is not unlocked, avoid anesthesia evaporator to occur the situation of leaking.
Limit stoper comprises heart frame 8, heart frame 8 entirety are the square bodily form, lever mounting groove 81 is set on it, in the interior activity of lever mounting groove 81, lever 7 is set, the middle part of lever 7 is connected with lever mounting groove 81 by bearing pin 11, and lever 7 can, freely in the interior swing of lever mounting groove 81, be arranged and tighten axle 9 on lever mounting groove 81 1 sides, heart frame 8, the two ends that tighten axle 9 are arranged on heart frame 8 outsides through heart frame 8 respectively, and the axle center that tightens axle 9 is vertical with lever mounting groove 81.
As shown in Figure 5, tightening axle 9 comprises and tightens axle first end 91 and tighten axle the second end 92, tightening axle first end 91 is arranged on back to a side of lever mounting groove 81 openings, its end is connected with rotatory handling 3 by attachment screw 13, rotatory handling 3 is arranged on evaporator body 1 outside, so that operator all can rotate fast rotatory handling 3 in the time of work or off working state, tightening axle the second end 92 is provided for anesthesia evaporator to be articulated in and to tighten spiral chute 93 on Anesthesia machine, tightening, axle 9 is peripheral arranges limiting board 10 with heart frame 8 contacting points, on heart frame 8, be provided for laying the groove of limiting board 10, limiting board 10 protrudes from lever mounting groove 81 places and is provided with the limiting board groove 103 matching with lever boss 73, so that lever 73 is in swing process, lever boss 73 on lever the second end 72 can pass limiting board groove 103 smoothly.By limiting board groove 103 is set on limiting board 10, and at the corresponding limiting board groove 103 of lever the second end 72, lever boss 73 is set, make in the time that anesthesia evaporator is in running order, when tightening axle 9 and driving limiting board groove 103 on limiting board 10 to turn to the position corresponding with lever boss 73, lever 7 can swing freely, in the time of off working state, need to limit lever 7 and swing time, only need to drive the limiting board groove 103 on limiting board 10 to rotate the position of staggering lever boss 73 by tightening axle 9, just can realize lever 7 and swing the restriction of work.
As shown in Figure 6, limiting board 10 comprises the limiting board center hole 101 passing for tightening axle 9 that its center arranges, be provided with spacing flange 102 at limiting board center hole 101 towards cardiac prominence wherein, corresponding spacing flange 102 arranges and tightens axle restraining groove 94 tightening on axle 9, tighten in axle restraining groove 94 so that spacing flange 102 can be inserted into smoothly, realize the coaxial rotation that tightens axle 9 and limiting board 10.
On heart frame 8, lever mounting groove 81 both sides arrange respectively two heart frame tapped holes 82, utilize four screws through these four heart frame tapped holes 82, heart frame 8 entirety to be fixed on evaporator body 1.
As shown in Figure 4, corresponding pulley 6 arranges spiral chute 41 in cam 4 peripheries, and putting groove 42 is also set on cam 4, is obliquely installed rotation entrance 43 between putting groove 42 and spiral chute 41, so that cam 4 when rotated, pulley 6 can be slipped in spiral chute 41 by rotation entrance 43 from putting groove 42.The initial position of pulley 6 is positioned at putting groove 42, in the time of rotation scale 2, dial 2 is with moving cam 4 to rotate, the pulley 6 being placed in putting groove 42 is slipped in spiral chute 41 by the rotation entrance 43 tilting, position that like this can pulley 6 raises, then drive the position of lever first end 71 to raise, and then the position of lever the second end 72 is reduced, if anesthesia evaporator is in off working state, lever the second end 72 is because the restriction of limiting board 10 cannot swing so, lever first end 71 cannot raise so, be that cam 4 and dial 2 all cannot rotate, ensure not to be unlocked under anesthesia evaporator off working state, if anesthesia evaporator is in running order, limiting board groove 103 rotates to lever boss 73 positions of lever the second end 72, lever the second end 72 can be swung freely, lever first end 71 can raise so, be that cam 4 and dial 2 all can rotate, guarantee anesthesia evaporator is normally opened.
As shown in Figure 8, heart frame 8 is provided for limiting the first ejector pin 14 and second ejector pin 15 of adjacent anesthesia evaporator work away from a side of rotatory handling 3, the first ejector pin 14 comprises first end and the second end, the second ejector pin 14 comprises first end and the second end, the first end of the first end of the first ejector pin 14 and the second ejector pin 15 is oppositely arranged, and be provided with vertebral body structure, the second end of the second end of the first ejector pin 14 and the second ejector pin 15 is all connected on anesthesia evaporator by spring, and is connected with the ejector pin of adjacent anesthesia evaporator through anesthesia evaporator.
As shown in Figure 9, lever the second end 72 ends arrange trapezoidal addendum cone 74, and trapezoidal addendum cone 74 is arranged at a side of the first end of the first ejector pin 14 and the first end joint of the second ejector pin 15, for the first ejector pin 14 is separated with the second ejector pin 15.
In the present embodiment, the chamfer length of trapezoidal addendum cone 74 and dial 2 rotate to the distance of Cmax position and match, be that the chamfer length of trapezoidal addendum cone 74 and maximum displacement that lever the second end 72 swings match, so that dial 2 while rotating to Cmax position trapezoidal addendum cone 74 still with the first ejector pin 14 with first end and the first end of the second ejector pin 15 contact, make the first ejector pin 14 and the separated state of the second ejector pin 15.
In the time that dial 2 does not rotate to concentration position, trapezoidal addendum cone 74 is the tangent line place near the outer side wall of heart frame 8 close to the first ejector pin 14 and the second ejector pin 15.
In the time that dial 2 rotates to zero degree position, trapezoidal addendum cone 74 starts to separate the first ejector pin 14 and the second ejector pin 15.
In the time that dial 2 rotates to Cmax position, trapezoidal addendum cone 74 separates farthest by the distance between the first end of the first ejector pin 14 and the first end of the second ejector pin 15, and trapezoidal addendum cone 74 is stuck between the first end of the first ejector pin 14 and the first end of the second ejector pin 15 always.
Multiple anesthesia evaporators with different anesthetic gaseses mostly can be installed on Anesthesia machine, in the present embodiment, anesthesia evaporator is three, be followed successively by the first anesthesia evaporator, the second anesthesia evaporator and the 3rd anesthesia evaporator, in the time of the second anesthesia evaporator work, lever the second end 72 in the second anesthesia evaporator drives trapezoidal addendum cone 74 to move to the first ejector pin 14 and the second ejector pin 15 places, the first end of the first ejector pin 14 is separated with the first end of the second ejector pin 15, the second ejector pin of two port the 3rd anesthesia evaporator of the first ejector pin 14 pushes up pressure, make the contact displacement of the first ejector pin in the 3rd anesthesia evaporator and the second ejector pin moving, the malposition of the trapezoidal addendum cone in the 3rd anesthesia evaporator is to contact position, even if rotating, the trapezoidal addendum cone of the 3rd anesthesia evaporator also cannot make the first ejector pin separate with the second ejector pin, therefore lever the second end cannot rotate, corresponding dial and concentration adjustment valve also cannot screw, cause the 3rd anesthesia evaporator to open.
Simultaneously, the first ejector pin of two port first anesthesia evaporator of the second ejector pin 15 in the second anesthesia evaporator pushes up pressure, make the contact displacement of the first ejector pin in the first anesthesia evaporator and the second ejector pin moving, the malposition of the trapezoidal addendum cone in the first anesthesia evaporator is to contact position, even if rotating, the trapezoidal addendum cone of the first anesthesia evaporator also cannot make the first ejector pin separate with the second ejector pin, therefore lever the second end cannot rotate, corresponding dial and concentration adjustment valve also cannot screw, and cause the first anesthesia evaporator also cannot open.
Before use, first each part is assembled into one according to the following step:
Step 1, first with screw and pin dial 2, cam 4 and concentration adjustment valve 5 are fixed as one, then three parts that are fixed as one are installed in anesthesia evaporator body 1;
Step 5, utilize screw to be fixed on evaporator body 1 inside the whole limit stoper assembling, and pulley 6 can be just in time stuck in putting groove 42;
Concrete chain method is as follows:
In the time that needs are opened anesthesia evaporator:
The first step, press rotatory handling 3, and be rotated counterclockwise rotatory handling 3, the rotation number of degrees are 90 °, rotatory handling 3 drives tighten axle 9 and move downward and be rotated counterclockwise simultaneously 90 °, tightening spiral chute 93 articulates with anesthesia evaporator, the limiting board groove 103 of limiting board 10 is aimed at lever boss 73, and lever the second end 72 can be swung up and down freely in lever mounting groove 81;
Second step, be rotated counterclockwise dial 2, dial 2 is with moving cam 4 and concentration adjustment valve 5 synchronous rotaries simultaneously, and now concentration adjustment valve 5 is opened anesthesia evaporator;
The 4th step, when driving the trapezoidal addendum cone 74 of end, lever the second end 72 moves to the first ejector pin 14 and the second ejector pin 15 places, the first ejector pin 14 is separated with the second ejector pin 15, the first ejector pin 14 and the second ejector pin 15 hold out against the ejector pin of adjacent anesthesia evaporator respectively, and adjacent anesthesia evaporator cannot be opened.
In the time that needs are closed anesthesia evaporator:
The first step, the dial 2 that turns clockwise, dial 2 is with moving cam 4 and concentration adjustment valve 5 synchronously to turn clockwise simultaneously, and now concentration adjustment valve 5 cuts out anesthesia evaporator;
Second step, pulley 6 in the spiral chute 41 of cam 4 is slipped in putting groove 42 by the rotation entrance 43 tilting, the position of pulley 6 reduces, the position of lever first end 71 also reduces, according to lever principle, the position of lever the second end 72 raises, now lever the second end 72 is got back in lever mounting groove 81, it is initial position, now trapezoidal addendum cone 74 also leaves the first ejector pin 14 and the second ejector pin 15, the first end of the first end of the first ejector pin 14 and the second ejector pin 15 is because spring action holds out against mutually, the second end of the second end of the first ejector pin 14 and the second ejector pin 15 separates with the ejector pin of adjacent anesthesia evaporator, remove the locking to adjacent anesthesia evaporator, rotatory handling 3 turns clockwise, the rotation number of degrees are 90 °, tightening spiral chute 93 departs from anesthesia evaporator, tighten axle 9 and be reflected back to initial position, the axle 9 that tightens now has driven 90 ° of limiting board 10 counterrotatings, limiting board groove 103 staggers with lever boss 73, make lever the second end 72 cannot show lever mounting groove 81 inside.
In the time of off working state, because limiting board groove 103 is staggered like state with lever boss 73 all the time, therefore lever the second end 72 cannot outlet swing lever mounting groove 81 inside, even if think rotation scale 2, cam 4 is also because the pulley 6 being arranged in putting groove 42 is limited to move and cannot rotates, be that lever first end 71 cannot upwards swing, therefore dial 2 now cannot be rotated, so just effectively prevent again under off working state, the situation that anesthesia evaporator is unlocked occurs, and ensures that the Anesthesia machine in anesthesia evaporator does not leak.
Embodiment two:
Structure in the present embodiment and embodiment's one structure is basically identical, different just the following aspects:
Lever is the cylindrical body of rod, and the spiral chute of lever first end and cam matches, and makes lever first end and spiral chute be sliding friction and is connected, and then the rotational of cam is driven on the position of lever first end rise, realize the swing of lever.
The limiting board central hole of limiting board arranges groove towards a deep side, tightens the protuberance that on axle, setting matches with groove.The groove of limiting board matches with the protuberance that tightens axle, can realize limiting board and the coaxial rotation that tightens axle, rotates and tightens the just rotatable limiting board of axle.
Pulley is arranged on the side that lever first end contacts with spiral chute, and rotate and be arranged on lever first end by rotating shaft, make like this lever first end and spiral chute be rolling friction setting, reduce the friction between lever and spiral chute, make cam more smooth in the time rotating.
Can certainly at lever first end, pulley be set, directly lever first end is set to cylindrically, makes like this rolling friction between lever and spiral chute become sliding friction, also can reach cam and rotate the object of the swing that drives lever.
Know-why of the present invention has below been described in conjunction with specific embodiments.These are described is in order to explain principle of the present invention, and can not be interpreted as by any way limiting the scope of the invention.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present invention, within these modes all will fall into protection scope of the present invention.
Claims (10)
1. an anesthesia evaporator interlock, comprises dial and the cam with its coaxial rotation, it is characterized in that, the limit stoper for preventing that dial off working state from rotating that also comprising matches with described cam arranges.
2. anesthesia evaporator interlock according to claim 1, it is characterized in that, described limit stoper comprises lever and tightens axle, described in being arranged at, described lever swing tightens a side of axle, described lever and described in tighten and between axle, be provided with lever swing limited part, described cam periphery arranges spiral chute, and the end of described lever is provided with the pulley matching with described spiral chute.
3. anesthesia evaporator interlock according to claim 2, it is characterized in that, described lever has lever first end and lever the second end, described moveable roller is located at described lever first end, described tighten axle be provided with can with the limiting board of its coaxial rotation, described limited part comprises and is convexly set in the lever boss of described lever the second end and is arranged with limiting board groove peripheral in described limiting board and that match with described lever boss.
4. anesthesia evaporator interlock according to claim 3, it is characterized in that, described limit stoper also comprises heart frame, describedly tighten that axle is rotating to be located on described heart frame, described tighten a side of axle and be positioned on described heart frame offer lever mounting groove, described lever is movably hinged in lever mounting groove, and described lever first end extends to outside lever mounting groove, and described lever the second end is positioned at lever mounting groove.
5. anesthesia evaporator interlock according to claim 4, it is characterized in that, the described axle that tightens has the axle of tightening first end and tightens axle the second end, the described axle first end that tightens is provided with the spiral chute that tightens that is mounted on Anesthesia machine for anesthesia evaporator, described in tighten axle the second end and be fixed with rotatory handling.
6. anesthesia evaporator interlock according to claim 5, it is characterized in that, the described periphery that tightens axle is concaved with and tightens axle restraining groove, the center of described limiting board is provided with for tightening the limiting board center hole that axle passes, and the hole wall of described limiting board center hole is centripetal to be convexed with described and tighten the spacing flange that axle restraining groove matches.
7. anesthesia evaporator interlock according to claim 5, it is characterized in that, the described outer protuberance that is arranged with that tightens axle, the center of described limiting board is provided with for tightening the limiting board center hole that axle passes, the centrifugal groove matching with described protuberance that is concaved with of hole wall of described limiting board center hole.
8. anesthesia evaporator interlock according to claim 2, it is characterized in that, the outer putting groove being connected with described spiral chute that is arranged with of described cam, described spiral chute and described putting groove joint have the rotation entrance being obliquely installed, so that described cam when rotated, pulley can slip in spiral chute by rotating entrance from putting groove.
9. according to the arbitrary described anesthesia evaporator interlock of claim 1 to 8, it is characterized in that, described cam arranges concentration adjustment valve away from a side of described dial, and described concentration adjustment valve and described cam, described dial can coaxial rotation.
10. anesthesia evaporator is carried out to a chain method, it is characterized in that,
Step 1, arbitrary claim 1 to 9 described anesthesia evaporator interlock is installed on anesthesia evaporator;
Step 2, in the time that needs are opened anesthesia evaporator, make rotatory handling keep the state being pressed, and be rotated predetermined angular, rotatory handling drives and tightens that axle moves downward and rotate this predetermined angular simultaneously, tightening spiral chute articulates anesthesia evaporator and Anesthesia machine, the limiting board groove alignment lever boss of limiting board can swing up and down lever the second end freely in lever mounting groove; Make dial keep the state being rotated, dial is with moving cam and concentration adjustment valve synchronous rotary simultaneously, now concentration adjustment valve is opened anesthesia evaporator, and the pulley in putting groove is slipped in spiral chute by the rotation entrance tilting simultaneously, along with the position of pulley raises, the position of lever first end also raises, according to lever principle, the position of lever the second end reduces, and limiting board groove is just to lever boss, lever the second end can be freely to lower swing, and dial can rotate freely;
In the time that needs are closed anesthesia evaporator, make dial keep being reversed the state of rotation, dial is with moving cam and the rotation of concentration adjustment valve synchronous backward simultaneously, now concentration adjustment valve cuts out anesthesia evaporator, pulley in spiral chute is slipped in putting groove by the rotation entrance tilting simultaneously, along with the position of pulley reduces, the position of lever first end also reduces, according to lever principle, the position of lever the second end raises, get back to initial position, make rotatory handling keep counterrotating predetermined angular, tightening spiral chute and Anesthesia machine departs from, tighten axle and drive this predetermined angular of limiting board counterrotating, now limiting board groove and lever boss stagger, make lever the second end cannot show lever mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210581573.9A CN103899609B (en) | 2012-12-27 | 2012-12-27 | Anesthesia evaporator interlock and chain method is carried out to anesthesia evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210581573.9A CN103899609B (en) | 2012-12-27 | 2012-12-27 | Anesthesia evaporator interlock and chain method is carried out to anesthesia evaporator |
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| Publication Number | Publication Date |
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| CN103899609A true CN103899609A (en) | 2014-07-02 |
| CN103899609B CN103899609B (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210581573.9A Active CN103899609B (en) | 2012-12-27 | 2012-12-27 | Anesthesia evaporator interlock and chain method is carried out to anesthesia evaporator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019075755A1 (en) * | 2017-10-20 | 2019-04-25 | 深圳迈瑞生物医疗电子股份有限公司 | Anesthetic evaporator locking structure and anesthesia machine |
| CN110559535A (en) * | 2019-10-10 | 2019-12-13 | 常州赛乐医疗技术有限公司 | Support for preventing evaporator from being opened by mistake, evaporator using support and working method |
| CN111002026A (en) * | 2019-12-19 | 2020-04-14 | 钟南京 | Automatic assembling production line for anesthetic evaporator cores |
| CN112901611A (en) * | 2021-01-13 | 2021-06-04 | 深圳市明信测试设备股份有限公司 | Manual pressing locking mechanism device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7882970B2 (en) * | 2008-07-02 | 2011-02-08 | Baxter Healthcare Corporation | Anesthetic container |
| CN201735040U (en) * | 2010-08-03 | 2011-02-09 | 北京航天长峰股份有限公司 | Self-locking device of anesthetic evaporator |
| CN101975207B (en) * | 2010-08-28 | 2012-05-30 | 青岛英派斯健康科技有限公司 | Single-knob adjusted locking and positioning mechanism |
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2012
- 2012-12-27 CN CN201210581573.9A patent/CN103899609B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019075755A1 (en) * | 2017-10-20 | 2019-04-25 | 深圳迈瑞生物医疗电子股份有限公司 | Anesthetic evaporator locking structure and anesthesia machine |
| US11779726B2 (en) | 2017-10-20 | 2023-10-10 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Anesthetic evaporator locking structure and anesthesia machine |
| CN110559535A (en) * | 2019-10-10 | 2019-12-13 | 常州赛乐医疗技术有限公司 | Support for preventing evaporator from being opened by mistake, evaporator using support and working method |
| CN110559535B (en) * | 2019-10-10 | 2023-06-16 | 常州赛乐医疗技术有限公司 | Support capable of preventing evaporator from being opened by mistake, evaporator using support and working method |
| CN111002026A (en) * | 2019-12-19 | 2020-04-14 | 钟南京 | Automatic assembling production line for anesthetic evaporator cores |
| CN112901611A (en) * | 2021-01-13 | 2021-06-04 | 深圳市明信测试设备股份有限公司 | Manual pressing locking mechanism device |
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| Publication number | Publication date |
|---|---|
| CN103899609B (en) | 2016-04-20 |
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