CN107997949A - A kind of pneumatic counter - Google Patents
A kind of pneumatic counter Download PDFInfo
- Publication number
- CN107997949A CN107997949A CN201711410747.4A CN201711410747A CN107997949A CN 107997949 A CN107997949 A CN 107997949A CN 201711410747 A CN201711410747 A CN 201711410747A CN 107997949 A CN107997949 A CN 107997949A
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- China
- Prior art keywords
- gear
- pneumatic
- shift fork
- output
- raised
- Prior art date
- 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.)
- Granted
Links
- 238000009423 ventilation Methods 0.000 claims abstract description 31
- 230000035772 mutation Effects 0.000 claims abstract description 17
- 238000006073 displacement reaction Methods 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000002680 cardiopulmonary resuscitation Methods 0.000 abstract description 22
- 230000006835 compression Effects 0.000 abstract description 8
- 238000007906 compression Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000002612 cardiopulmonary effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000033764 rhythmic process Effects 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 208000028399 Critical Illness Diseases 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229940124645 emergency medicine Drugs 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H31/00—Artificial respiration by a force applied to the chest; Heart stimulation, e.g. heart massage
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M1/00—Design features of general application
- G06M1/08—Design features of general application for actuating the drive
- G06M1/12—Design features of general application for actuating the drive by fluid means
- G06M1/123—Design features of general application for actuating the drive by fluid means by pneumatic means
Landscapes
- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Emergency Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Pulmonology (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Percussion Or Vibration Massage (AREA)
Abstract
The present invention relates to a kind of pneumatic counter, including the first pneumatic operated valve, breather valve, first connecting rod, shift fork and gear set, gear set includes input gear and output gear, and input gear and output gear can be rotated at the same time with the rotating ratio of setting；The output terminal of first pneumatic operated valve is connected with the shift fork by the first connecting rod and drives the shift fork around axis reciprocally swinging, and the shift fork is connected on the input gear and is rotated by stirring the input gear around axis reciprocally swinging with setting the displacement of gear teeth number；It is raised that one side of the output gear is equipped with circular ring shape, the raised excircle is equipped with mutation structure, the ventilation threshold switch for controlling the breather valve start and stop is connected with breather valve, ventilation threshold switch includes the triggering end abutted against all the time with the raised excircle.The present invention counts the compression number of cardio-pulmonary resuscitation machine by the way of mechanical count, so as to improve the security performance of cardio-pulmonary resuscitation machine.
Description
Technical field
The present invention relates to medical instruments field, and in particular to a kind of pneumatic counter.
Background technology
CPR is both the emergency medicine of specialty, and the core content given first aid to now is most important first aid mode
One of, it is the effective emergency treatment taken when critically ill.CPR is to have sternly to the rhythm and pace of moving things of external chest compression
Lattice requirement, often press 30 times, need to be to once being ventilated by rescuer, (press and interrupt during ventilation), the break period is less than 5
Second.And existing cardio-pulmonary resuscitation machine usually counts pressing by using electronic device, under the occasion using oxygen ventilation,
Since oxygen is good combustion adjuvant, spark caused by electronic device failure be easy to cause equipment and the safety problem such as catches fire.
The content of the invention
It is an object of the invention to provide a kind of pneumatic counter, and the device is by the way of mechanical count to CPR
The compression number of machine is counted, so as to improve the security performance of cardio-pulmonary resuscitation machine.
To achieve the above object, the present invention provides a kind of pneumatic counter, including the first pneumatic operated valve, breather valve, first
Connecting rod, shift fork and gear set, the gear set include input gear and output gear, and the input gear and output gear can
Rotated at the same time with the rotating ratio of setting；The output terminal of first pneumatic operated valve is connected simultaneously by the first connecting rod with the shift fork
The shift fork is driven around axis reciprocally swinging, the shift fork is connected on the input gear and by stirring institute around axis reciprocally swinging
Input gear is stated to set the displacement of gear teeth number rotation；One side of the output gear is equipped with circular or circular ring shape
Protrusion, it is described it is raised be arranged concentrically with the output gear, the raised excircle is equipped with mutation structure, the breather valve
On be connected with the ventilation threshold switch for controlling the breather valve start and stop, the ventilation threshold switch include all the time with it is described raised cylindrical
The triggering end abutted against in week, when the triggering end reaches the mutation structure, the breather valve is opened.
Preferably, the pneumatic counter further includes the second pneumatic operated valve, second connecting rod, clutch stent, the tooth
Wheel group further includes enabled gear, and the enabled gear can be engaged with the input gear, output gear at the same time；Second gas
The output terminal of dynamic valve is connected with one end of the clutch stent by the second connecting rod and drives the clutch stent past around axis
Physical pendulum moves, and the enabled gear is installed on the clutch stent, makes described enable around axis reciprocally swinging by the clutch stent
Gear is engaged or separated at the same time with the input gear, output gear.
Preferably, the input gear includes coaxial and synchronous rotary first gear and second gear, described
Shift fork is connected with the first gear by second gear and drives first gear to rotate, the enabled gear can at the same time with institute
State first gear, output gear engagement.
Preferably, the shift fork is equipped with double wedge, and the double wedge is meshed with the second gear and drives institute
State second gear rotation.
Preferably, the outside circle phase inscribe of the outside circle of the first gear and the output gear.
Preferably, the gear ratio of first gear and second gear is 2:1, the shift fork passes through around axis reciprocally swinging
The second gear is stirred to rotate with the displacement per next gear teeth.
Preferably, the mutation structure is that the arc groove that is arranged on the raised excircle or arc are convex
Rise.
Preferably, the pneumatic counter further includes housing, between the ventilation threshold switch and the breather valve
Equipped with spring, the housing is fixed in one end of the spring, and the other end of the spring is connected on the ventilation threshold switch,
So that the triggering end of the ventilation threshold switch is abutted against with the raised excircle all the time.
Preferably, the pneumatic counter further includes stop mechanism, the stop mechanism include arresting lever and
The confined planes for the eccentric setting being arranged on the side of the output gear, one end of the arresting lever and the clutch stent phase
Connect, by the clutch stent drive the arresting lever around the axis reciprocally swinging arresting lever the other end with it is described spacing
Face abuts against or separates.
Preferably, the arresting lever is equipped with locking groove, and the clutch stent is equipped with recessed with the stop
The corresponding stop protrusion of groove, the stop protrusion are located in the locking groove and promote the arresting lever court and the confined planes
The direction abutted against is swung.
A kind of pneumatic counter that above-mentioned technical proposal is provided, including the first pneumatic operated valve, breather valve, first connecting rod, dial
Fork and gear set, the gear set include input gear and output gear, and the input gear and output gear can be with settings
Rotating ratio rotate at the same time；Heretofore described first pneumatic operated valve often presses once as valve, cardio-pulmonary resuscitation machine is counted, the first gas
Dynamic valve stretches once back and forth, and the first pneumatic operated valve stretches back and forth drives shift fork to swing back and forth around the shaft (i.e. the 8th axis 26) of shift fork；
For first pneumatic operated valve per stretching once back and forth, shift fork drives the input gear to rotate a certain number of numbers of teeth, the input gear
Output gear is driven to rotate at the same time according to the rotating ratio of setting.By being equipped with mutation structure on the raised excircle, and
Connection controls the ventilation threshold switch of the breather valve start and stop on the breather valve, when the triggering end of ventilation threshold switch reaches described dash forward
During structure changes, the breather valve is opened, and starts to ventilate, in the present invention, since the number of teeth of output gear is fixed, and threshold switch of ventilating
The initial position of triggering end is located at the mutation structure, and when cardio-pulmonary resuscitation machine presses D times, output gear just rotates one
Week, the triggering end of ventilation threshold switch are returned at mutation structure, and at this time, breather valve is opened, and starts to ventilate, it is achieved thereby that to cardiopulmonary
The counting of resuscitating machine compression number, i.e., when cardio-pulmonary resuscitation machine often presses D times, automatically open up breather valve, to being carried out by rescuer
Ventilation.The present invention counts the compression number of cardio-pulmonary resuscitation machine by the way of mechanical count, is answered so as to improve cardiopulmonary
The security performance of Soviet Union's machine.
Brief description of the drawings
Fig. 1 is a kind of internal structure schematic diagram of pneumatic counter (one) provided by the present invention；
Fig. 2 is a kind of internal structure schematic diagram of pneumatic counter (two) provided by the present invention；
Fig. 3 is a kind of internal structure schematic diagram of pneumatic counter (three) provided by the present invention；
Fig. 4 is a kind of internal structure schematic diagram of pneumatic counter (four) provided by the present invention；
Fig. 5 is a kind of external structure schematic diagram of pneumatic counter provided by the present invention；
Fig. 6 is the location diagram between arresting lever and confined planes when the second pneumatic operated valve is in enabled operating mode；
Fig. 7 is that the second pneumatic operated valve is in the location diagram between arresting lever and confined planes when closing operating mode.
Wherein：1st, the first pneumatic operated valve；2nd, the second pneumatic operated valve；3rd, first connecting rod；4th, shift fork；5th, first gear；6th, output gear
Wheel；7th, gear is enabled；8th, breather valve；9th, spring；10th, ventilation threshold switch；11st, the 7th axis；12nd, clutch stent；13rd, second connects
Bar；14th, circular groove；15th, circular ring shape is raised；16th, roller；17th, housing；18th, confined planes；19th, the 3rd axis；20th, stop is convex
Rise；21st, locking groove；22nd, arresting lever；23rd, the 6th axis；24th, the 5th axis；25th, first axle；26th, the 8th axis；27th, second gear.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
It is a kind of pneumatic counter provided by the present invention as shown in Figs. 1-5, including the first pneumatic operated valve 1, breather valve 8,
One connecting rod 3, shift fork 4 and gear set, the gear set include input gear and output gear 6, the input gear and output gear
Wheel 6 can be rotated at the same time with the rotating ratio of setting；The output terminal of first pneumatic operated valve 1 by the first connecting rod 3 with it is described
Shift fork 4 connects and drives the shift fork 4 to be connected to around axis reciprocally swinging, the shift fork 4 on the input gear and by around axis
Reciprocally swinging stirs the input gear to set the displacement of gear teeth number rotation；Set on one side of the output gear 6
Have a circular or circular ring shape protrusion 15, it is described it is raised be arranged concentrically with the output gear 6, the raised excircle is equipped with
Mutation structure, is connected with the ventilation threshold switch 10 for controlling 8 start and stop of breather valve, the ventilation threshold switch on the breather valve 8
10 triggering ends including being abutted against all the time with the raised excircle, when the triggering end reaches the mutation structure, institute
Breather valve 8 is stated to open.Heretofore described first pneumatic operated valve 1 often presses once as valve, cardio-pulmonary resuscitation machine is counted, and first is pneumatic
Valve 1 stretches once back and forth, and the first pneumatic operated valve 1 stretches back and forth drives shift fork 4 to carry out backswing around the shaft (i.e. the 8th axis 26) of shift fork 4
It is dynamic；For first pneumatic operated valve 1 per stretching once back and forth, shift fork 4 drives the input gear to rotate a certain number of numbers of teeth, the input
Gear drives output gear 6 to rotate at the same time according to the rotating ratio of setting.By being equipped with abrupt junction on the raised excircle
Structure, and connection controls the ventilation threshold switch 10 of 8 start and stop of breather valve on the breather valve 8, when the triggering of ventilation threshold switch 10
When end reaches the mutation structure, the breather valve 8 is opened, and starts to ventilate, in the present invention, since the number of teeth of output gear 6 is consolidated
Fixed, the initial position of the triggering end for threshold switch 10 of ventilating is located at the mutation structure, defeated when cardio-pulmonary resuscitation machine presses D times
Go out gear 6 just rotate one week, ventilate threshold switch 10 triggering end return at mutation structure, at this time, breather valve 8 is opened, start
Ventilation, it is achieved thereby that the counting to cardio-pulmonary resuscitation machine compression number, i.e., when cardio-pulmonary resuscitation machine often presses D times, automatically opens up logical
Air valve 8, to being ventilated by rescuer.The present invention carries out the compression number of cardio-pulmonary resuscitation machine by the way of mechanical count
Count, so as to improve the security performance of cardio-pulmonary resuscitation machine.
Further, as shown in Fig. 2, the pneumatic counter further includes the second pneumatic operated valve 2, second connecting rod 13, clutch branch
Frame 12, the gear set further include enabled gear 7, the enabled gear 7 can at the same time with the input gear, output gear 6
Engagement；The output terminal of second pneumatic operated valve 2 is connected by the second connecting rod 13 with one end of the clutch stent 12 and band
Move the clutch stent 12 and the enabled gear 7 is installed on axis reciprocally swinging, the clutch stent 12, pass through the clutch branch
Frame 12 makes the enabled gear 7 and the input gear, output gear 6 around axis reciprocally swinging while engages or separate.Second
Pneumatic operated valve 2 is as energy threshold is made, and when the second pneumatic operated valve 2 is in enabled operating mode, the second pneumatic operated valve 2 is opened, and second connecting rod 13 is outside
To release, clutch stent 12 is driven shaft (i.e. the 7th axis 11) rotation around clutch stent 12 by second connecting rod 13, wherein, the 7th axis
11 are arranged on the inner wall of housing 17 so that enabled gear 7 turns to around the 7th axis 11 with clutch stent 12 while with inputting tooth
Wheel and output gear 6 are meshed, and the above process is the preparation before counting.When cardiopulmonary resuscitation therapy terminates, the second pneumatic operated valve 2
Close, second connecting rod 13 withdraws, and clutch stent 12 is driven by second connecting rod 13 and rotated around the 7th axis 11 so that enabled gear 7 with
Clutch stent 12 is turned to around the 7th axis 11 and is separated with input gear and output gear 6.
Further, as shown in Fig. 2, the input gear includes coaxial and synchronous rotary 5 and second tooth of first gear
Wheel 27, the shift fork 4 is connected with the first gear 5 by second gear 27 and drives first gear 5 to rotate, the enabled tooth
Wheel 7 can be engaged with the first gear 5, output gear 6 at the same time, wherein, outside circle and the output of the first gear 5
The outside circle phase inscribe of gear 6.In the present embodiment, first axle 25 is fixedly connected with the axle center of the first gear 5, described
The external part of one axis 25 is fixedly connected with the second gear 27, and the second gear 27 is arranged concentrically with the first gear 5
And the first gear 5 is driven to rotate by the first axle 25.As illustrated in fig. 1 and 2, the shift fork 4 is equipped with double wedge, described
Double wedge is meshed with the second gear 27 and drives the second gear 27 to rotate, and then the second gear 27 is by described
First axle 25 drives the first gear 5 to rotate.Wherein, the number of teeth of the output gear 6 is 60,5 and second tooth of first gear
The gear ratio of wheel 27 is 2:1, the shift fork 4 around axis reciprocally swinging by stirring the second gear 27 with next every gear teeth
Displacement rotates.When cardio-pulmonary resuscitation machine often presses one time, shift fork 4 swings back and forth once, drives the second gear 27 to turn over one
A tooth, since the gear ratio of first gear 5 and second gear 27 is 2:1, therefore drive the first gear 5 to rotate 2 teeth, institute
State enabled gear 7 while be meshed with the first gear 5 and the output gear 6, therefore, output gear 6 rotates therewith 2
Tooth, and since the number of teeth of output gear 6 is 60, it may therefore be assured that when cardio-pulmonary resuscitation machine often presses 30 times so that breather valve
8 open, to being ventilated by rescuer.CPR has strict demand to the rhythm and pace of moving things of external chest compression, often presses 30 times, needs
To once being ventilated by rescuer, (press and interrupt during ventilation), the break period is less than 5 seconds, in the present embodiment, ventilates every time
Shi Changwei 2 seconds.
Further, the mutation structure is the circular groove 14 or arc-shaped being arranged on the raised excircle
Protrusion, as shown in figure 3, in the present embodiment, the mutation structure be arranged at it is arc-shaped on the raised excircle
Groove 14, the triggering end are equipped with roller 16, the triggering end by the roller 16 all the time with it is described raised outer
Circumference is abutted against and can rolled on the raised excircle, by the triggering end for setting the ventilation threshold switch 10 of roller 16
Slide more smoothly on the excircle of the circular ring shape protrusion 15.In the present embodiment, when the roller 16 of ventilation threshold switch 10
When rolling to circular groove 14, ventilation threshold switch 10 occurs necessarily to swing so that breather valve 8 is opened, and starts to ventilate.
Further, as shown in figure 3, the pneumatic counter further includes housing 17, the ventilation threshold switch 10 with it is described
Be equipped with spring 9 between breather valve 8, the housing 17 is fixed in the spring 9, one end of the spring 9, the spring 9 it is another
One end is connected on the ventilation threshold switch 10 so that the triggering end of the ventilation threshold switch 10 all the time with it is described raised cylindrical
Week abuts against.
Further, as shown in figure 4, the pneumatic counter further includes stop mechanism, the stop mechanism includes stop
The confined planes 18 of bar 22 and the eccentric setting being arranged on the side of the output gear 6, one end of the arresting lever 22 with
The clutch stent 12 connects, and the arresting lever 22 is driven around the stop of axis reciprocally swinging by the clutch stent 12
The other end of bar 22 is abutted against or separated with the confined planes 18.The arresting lever 22 is equipped with locking groove 21, it is described from
Close stent and be equipped with stop protrusion 20 corresponding with the locking groove 21, convex 20 of the stop is located at the locking groove 21
It is interior and promote the arresting lever 22 to be swung towards the direction that is abutted against with the confined planes 18.In the present embodiment, the housing 17
Inner wall is equipped with the 5th axis 24, and an end and the 5th axis 24 of the arresting lever 22 are rotatablely connected.The arresting lever 22
Be equipped with locking groove 21, the clutch stent 12 be equipped with the locking groove 21 relative to stop protrusion 20, it is described
Stop protrusion 20 is in contact with the cell wall of the locking groove 21 and the arresting lever 22 can be driven to swing.In the present embodiment, lead to
Setting arresting lever 22 is crossed, when cardiopulmonary resuscitation therapy terminates, enabled gear 7 turns to and first with clutch stent 12 around the 7th axis 11
During gear 5 and output gear 6 are separated, stop protrusion 20 on clutch stent 12 is arranged at 12 turns of clutch stent
Dynamic, the stop protrusion 20 drives the arresting lever 22 to turn to and institute is in contact and withstood with the outer surface of the confined planes 18
The outer surface of confined planes 18 is stated, is freely rotated so as to effectively prevent output gear 6；Make when the second pneumatic operated valve 2 is in
During energy operating mode, the second pneumatic operated valve 2 is opened, and second connecting rod 13 is pushed outwardly, and clutch stent 12 is driven around the 7th by second connecting rod 13
Axis 11 rotates, and stop protrusion 20 is rotated with clutch stent 12, and the stop protrusion 20 drives the arresting lever 22 to turn to and institute
The outer surface for stating confined planes 18 is separated so that when air-breather works, the output gear 6 can be with the enabled gear 7
Rotate.Further, as shown in figure 4, the inner wall of the housing 17 is equipped with the 6th axis 23, the ventilation threshold switch with it is described
6th axis 23 is rotatablely connected, wherein, the 6th axis 23 is the rotation axis of the ventilation threshold switch, and the arresting lever 22 is arranged at described
And can be in the external part and described the of the 6th axis 23 between the external part of the external part of 6th axis 23 and the 3rd axis 19
Swing back and forth between the external part of three axis 19, so as to define the working range of arresting lever 22, effectively avoid
For the arresting lever 22 when air-breather works, amplitude of fluctuation is excessive, influences the normal work of other parts.Fig. 6 is shown
Location diagram when second pneumatic operated valve 2 is in enabled operating mode between arresting lever 22 and confined planes 18；It is pneumatic that Fig. 7 show second
Valve 2 is in the location diagram between arresting lever 22 and confined planes 18 when closing operating mode.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvement and replacement can also be made, these improve and replace
Also it should be regarded as protection scope of the present invention.
Claims (10)
- A kind of 1. pneumatic counter, it is characterised in that including the first pneumatic operated valve, breather valve, first connecting rod, shift fork and gear set, The gear set includes input gear and output gear, and the input gear and output gear can be with the rotating ratios of setting at the same time Rotate；The output terminal of first pneumatic operated valve is connected with the shift fork by the first connecting rod and drives the shift fork past around axis Physical pendulum moves, and the shift fork is connected on the input gear and sets wheel by stirring the input gear around axis reciprocally swinging The displacement of tooth number rotates；One side of the output gear is equipped with circular or circular ring shape protrusion, described raised concentric with the output gear Set, the raised excircle is equipped with mutation structure, and the logical of the control breather valve start and stop is connected with the breather valve Air valve switch, the ventilation threshold switch includes the triggering end abutted against all the time with the raised excircle, when the triggering end When reaching the mutation structure, the breather valve is opened.
- 2. pneumatic counter according to claim 1, it is characterised in that it is pneumatic that the pneumatic counter further includes second Valve, second connecting rod, clutch stent, the gear set further include enabled gear, the enabled gear can at the same time with the input Gear, output gear engagement；The output terminal of second pneumatic operated valve is connected with one end of the clutch stent by the second connecting rod and driven described Clutch stent installs the enabled gear on axis reciprocally swinging, the clutch stent, reciprocal around axis by the clutch stent Swing makes the enabled gear engage or separate at the same time with the input gear, output gear.
- 3. pneumatic counter according to claim 2, it is characterised in that the input gear includes coaxial and synchronous rotary First gear and second gear, the shift fork be connected by second gear with the first gear and drive first gear turn Dynamic, the enabled gear can be engaged with the first gear, output gear at the same time.
- 4. pneumatic counter according to claim 3, it is characterised in that the shift fork is equipped with double wedge, the double wedge with The second gear is meshed and drives the second gear to rotate.
- 5. pneumatic counter according to claim 3, it is characterised in that the outside circle of the first gear and the output The outside circle phase inscribe of gear.
- 6. pneumatic counter according to claim 3, it is characterised in that the gear ratio of first gear and second gear is 2: 1, the shift fork is rotated by stirring the second gear around axis reciprocally swinging with the displacement per next gear teeth.
- 7. according to the pneumatic counter any one of claim 1-6, it is characterised in that the mutation structure is to be arranged at Arc groove or arc convex on the raised excircle.
- 8. according to the pneumatic counter any one of claim 1-6, it is characterised in that including housing, the breather valve Spring is equipped between switch and the breather valve, the housing is fixed in one end of the spring, and the other end of the spring supports It is connected on the ventilation threshold switch so that the triggering end of the ventilation threshold switch is abutted against with the raised excircle all the time.
- 9. according to the pneumatic counter any one of claim 1-6, it is characterised in that stop mechanism is further included, it is described Stop mechanism includes the confined planes of arresting lever and the eccentric setting being arranged on the side of the output gear, the arresting lever One end connect with the clutch stent, drive the arresting lever to stop around axis reciprocally swinging Suo Shu by the clutch stent The other end of lever is abutted against or separated with the confined planes.
- 10. pneumatic counter according to claim 9, it is characterised in that the arresting lever is equipped with locking groove, described Clutch stent is equipped with stop protrusion corresponding with the locking groove, and the stop protrusion is located in the locking groove and pushes away The dynamic arresting lever is swung towards the direction abutted against with the confined planes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711410747.4A CN107997949B (en) | 2017-12-23 | 2017-12-23 | Pneumatic counter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711410747.4A CN107997949B (en) | 2017-12-23 | 2017-12-23 | Pneumatic counter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107997949A true CN107997949A (en) | 2018-05-08 |
| CN107997949B CN107997949B (en) | 2023-05-09 |
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ID=62060905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711410747.4A Active CN107997949B (en) | 2017-12-23 | 2017-12-23 | Pneumatic counter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107997949B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB813738A (en) * | 1956-12-19 | 1959-05-21 | Paliz Holding Ag | Stroke counter |
| US20040089298A1 (en) * | 2000-05-17 | 2004-05-13 | Jussi Haikarainen | Inhaler with a dose counter |
| CN2679648Y (en) * | 2004-01-13 | 2005-02-16 | 宁波市大名智能仪表有限公司 | Mechanically prechanging gas meter |
| US20090187123A1 (en) * | 2006-04-25 | 2009-07-23 | Sung-Oh Hwang | Cardiopulmonary resuscitation unit control apparatus |
| CN105213166A (en) * | 2015-09-08 | 2016-01-06 | 张志鹏 | Cardio-pulmonary resuscitation outer chest heart pressing device |
-
2017
- 2017-12-23 CN CN201711410747.4A patent/CN107997949B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB813738A (en) * | 1956-12-19 | 1959-05-21 | Paliz Holding Ag | Stroke counter |
| US20040089298A1 (en) * | 2000-05-17 | 2004-05-13 | Jussi Haikarainen | Inhaler with a dose counter |
| CN2679648Y (en) * | 2004-01-13 | 2005-02-16 | 宁波市大名智能仪表有限公司 | Mechanically prechanging gas meter |
| US20090187123A1 (en) * | 2006-04-25 | 2009-07-23 | Sung-Oh Hwang | Cardiopulmonary resuscitation unit control apparatus |
| CN105213166A (en) * | 2015-09-08 | 2016-01-06 | 张志鹏 | Cardio-pulmonary resuscitation outer chest heart pressing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107997949B (en) | 2023-05-09 |
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