CN219200508U - Flowmeter and respiratory anesthesia supporting equipment - Google Patents
Flowmeter and respiratory anesthesia supporting equipment Download PDFInfo
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- CN219200508U CN219200508U CN202223552584.2U CN202223552584U CN219200508U CN 219200508 U CN219200508 U CN 219200508U CN 202223552584 U CN202223552584 U CN 202223552584U CN 219200508 U CN219200508 U CN 219200508U
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- 206010002091 Anaesthesia Diseases 0.000 title claims description 12
- 230000037005 anaesthesia Effects 0.000 title claims description 12
- 230000000241 respiratory effect Effects 0.000 title claims description 7
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- 238000010276 construction Methods 0.000 claims description 2
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- 239000000463 material Substances 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
The utility model is applicable to the technical field of medical instruments, and provides a flowmeter, which comprises a transparent sleeve and a floater, wherein the inner diameter of the transparent sleeve decreases from the top to the bottom, and graduation marks are arranged on the transparent sleeve; the floats are arranged in the transparent sleeve, the floats are of axisymmetric structures, and the diameters of the floats decrease from the top end to the bottom end; a gap for gas to pass through is arranged between the transparent sleeve and the floater. In this embodiment, the float is mounted in the transparent sleeve, and a gap for gas to pass through is provided between the inner wall of the transparent sleeve and the float. The float is arranged to be of an axisymmetric structure, at the moment, the pipeline opening at the lower end of the transparent sleeve is aligned with the outer wall of the float to sweep, so that the float can stably rise, and meanwhile, the float is not contacted with the inner wall of the transparent sleeve, and the accuracy of the flowmeter can be improved. Meanwhile, the flowmeter of the utility model has simple structure and fewer component parts, and is convenient for assembly production, test and overhaul.
Description
Technical Field
The utility model belongs to the technical field of medical appliances, and particularly relates to a flowmeter and a respiratory anesthesia support device.
Background
The flowmeter is a meter for measuring the flow rate of fluid in a pipeline or an open channel, and is commonly used in engineering in unit m 3 The method comprises the steps of (1) dividing the flow into instantaneous flow and accumulated flow, wherein the instantaneous flow is the amount of the flow passing through the effective section of a closed pipeline or an open channel in unit time, and the flowing material can be gas, liquid or solid; the cumulative flow is the cumulative amount of fluid flowing through the effective cross section of the closed conduit or open channel over a period of time (one day, one week, one month, one year). The integrated flow can also be obtained by integrating the instantaneous flow with time, so that the instantaneous flow meter and the integrated flow meter can be mutually converted. The flowmeter is used as one of the large instruments in the process automation instrument and the device, is widely applied to various fields of national economy such as metallurgy, electric power, coal, chemical industry, petroleum, traffic, construction, light spinning, food, medicine, agriculture, environmental protection, daily life of people and the like, and is an important tool for developing industrial and agricultural production, saving energy, improving product quality and improving economic benefit and management level.
Glass tube flowmeters are widely used in medical devices as one type of flowmeter; the anesthesia machine is an important medical device for inhalation anesthesia and respiratory management, is provided with a glass tube type flowmeter for monitoring gas flow, and is an important functional module for configuration of the anesthesia machine. However, a guide rail for a float to slide up and down is provided in a glass tube of a glass tube type flowmeter for an anesthesia machine in the existing medical industry, so that an outer wall of the float is not in contact with an inner wall of the glass tube, but since the inner wall of the float is also in contact with the guide rail, friction exists, resulting in a reduction in accuracy of the flowmeter.
Disclosure of Invention
The utility model aims to provide a flowmeter so as to solve the technical problem that the accuracy of the flowmeter in the prior art is reduced.
To achieve the above object, the present utility model provides a flow meter comprising:
the inner diameter of the transparent sleeve is reduced from the top to the bottom, and scale marks are arranged on the transparent sleeve;
the floater is arranged in the transparent sleeve, is of an axisymmetric structure and has a diameter decreasing from the top end to the bottom end;
a gap for gas to pass through is arranged between the transparent sleeve and the floater;
the cross-sectional area of the gap, a, versus the flow rate, Q, through the transparent sleeve satisfies the following equation:
wherein m is the mass of the floater, g is the gravitational acceleration, ρ 1 Is of air density, V 1 The volume of the entire float, C is the drag coefficient, ρ is the density of the float, and S is the cross-sectional area of the float.
Further, the transparent sleeve is of an axisymmetric structure.
Further, the central axis of the floater is parallel or coincident with the central axis of the transparent sleeve.
Furthermore, the inner wall of the transparent sleeve is a conical surface with an axisymmetric structure, an included angle theta is formed between the symmetric axis of the transparent sleeve and a bus of the transparent sleeve, and the included angle theta meets the relation: θ is more than 0 and less than or equal to 8 degrees.
Still further, the float is tapered in shape, and the tapered portion of the float has a taper in the range of 45 ° to 170 °.
Still further, the height of the float is greater than one eighth and less than one fourth of the height of the transparent sleeve.
Further, the top end of the float is provided with an annular flange, the height of which is greater than one eighth and less than one quarter of the height of the float.
Still further, the flowmeter further comprises:
the first connector is communicated with one end, close to the bottom end of the floater, of the transparent sleeve, and a first sealing gasket is arranged between the first connector and the transparent sleeve;
the second joint, the second joint with transparent sleeve is close to the one end intercommunication on float top, the second joint with be provided with the second between the transparent sleeve and seal the pad, the second is sealed to be provided with spacing portion, spacing portion is used for preventing the float breaks away from transparent sleeve.
Furthermore, the inner wall of the bottom end of the transparent sleeve is provided with a limit rib which is mutually abutted with the floater.
In order to achieve the above object, the present utility model also provides a respiratory anesthesia support apparatus, including the above flowmeter.
The flowmeter provided by the utility model has the beneficial effects that: in this embodiment, the float is mounted in the transparent sleeve, and a gap for gas to pass through is provided between the inner wall of the transparent sleeve and the float. The float is arranged to be of an axisymmetric structure, at the moment, the pipeline opening at the lower end of the transparent sleeve is aligned with the outer wall of the float to sweep, so that the float can stably rise, and meanwhile, the float is not contacted with the inner wall of the transparent sleeve, and the accuracy of the flowmeter can be improved. Meanwhile, the flowmeter of the utility model has simple structure and fewer component parts, and is convenient for assembly production, test and overhaul.
Drawings
FIG. 1 is a schematic perspective view of a flowmeter according to an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of a flow meter according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of an exploded structure of a flowmeter according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a conical surface provided by an embodiment of the present utility model;
fig. 5 is a schematic cross-sectional view of a transparent sleeve according to an embodiment of the present utility model.
Description of main reference numerals:
1. a flow meter; 11. a first joint; 12. a second joint; 2. a transparent sleeve; 21. a limit rib; 3. a float; 31. an annular flange; 4. a first gasket; 5. a second gasket; 51. and a limiting part.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The flowmeter is perpendicular to the transparent sleeve that installs the float, utilize transparent sleeve's lower extreme to connect the gas-supply pipeline, negative pressure device is connected to the upper end, be equipped with the clearance that the gas supply passes through between transparent sleeve's inner wall and the float, when negative pressure device suction gas-supply pipeline output's gas flow through the flowmeter, gas flows from transparent sleeve's lower extreme towards the upper end, when the outer wall of float plays direction effect of direction gas flow, under gaseous sweeping the effect, the clearance between float's outer wall and transparent sleeve's inner wall produces differential pressure, make the float overcome gravity effect and float from top to bottom in transparent sleeve.
In this embodiment, the float is mounted in the transparent sleeve, and a gap for gas to pass through is provided between the inner wall of the transparent sleeve and the float. The float is arranged to be of an axisymmetric structure, at the moment, the pipeline opening at the lower end of the transparent sleeve is aligned with the outer wall of the float to sweep, so that the float can stably rise, and meanwhile, the float is not contacted with the inner wall of the transparent sleeve, and the accuracy of the flowmeter can be improved. Meanwhile, the flowmeter of the utility model has simple structure and fewer component parts, and is convenient for assembly production, test and overhaul.
Example 1
Referring to fig. 1 to 3, a flowmeter 1 according to an embodiment of the utility model includes:
the inner diameter of the transparent sleeve 2 decreases from the top to the bottom, and graduation lines are arranged on the transparent sleeve 2;
the floater 3 is arranged in the transparent sleeve 2, the floater 3 is of an axisymmetric structure, and the diameter of the floater 3 decreases from the top end to the bottom end;
a gap for gas to pass through is arranged between the transparent sleeve 2 and the floater 3;
the relation between the cross-sectional area a of the gap and the flow Q through the transparent sleeve 2 satisfies the following formula:
wherein m is the mass of the float 3, g is the gravitational acceleration, ρ 1 Is of air density, V 1 The volume of the entire float 3, C is the drag coefficient, ρ is the density of the float 3, and S is the cross-sectional area of the float 3.
In this embodiment, the inner wall of the transparent sleeve 2 is in a truncated cone shape, and the cross-sectional area of the top end of the inner wall of the transparent sleeve 2 is larger than the cross-sectional area of the inner wall of the bottom end.
The inner side wall of the transparent sleeve 2 of this embodiment is arranged perpendicular to the horizontal plane, and scale marks are arranged on the side wall.
Specifically, by providing the transparent sleeve 2 with the scale marks, the numerical positions of the scale marks are related to the shape and weight of the float 3, and when the float 3 is in a dynamic balance state, a user can intuitively obtain the flow value of the gas flowing through the transparent sleeve 2 by observing the scale marks corresponding to the positions of the top end of the float 3. Meanwhile, the inner diameter of the transparent sleeve 2 is reduced from the top to the bottom, so that the transparent sleeve can be suitable for measuring cylinders with different measuring ranges, and the application range of the flowmeter 1 is effectively enlarged.
In this embodiment, the float 3 has a conical overall shape, and the cross-sectional area of the top end of the float 3 is larger than the cross-sectional area of the bottom end. In other embodiments, the entire shape of the float 3 may also be pyramid-shaped, and the specific shape of the float 3 is not particularly limited herein.
Specifically, the floater 3 is of an axisymmetric structure, the diameter of the floater 3 decreases from the top end to the bottom end, so that the floater 3 is uniformly stressed in the floating process, and is kept in a vertical state in the floating process in the transparent sleeve 2, and the accuracy of the measured value is ensured.
Specifically, the relation between the cross-sectional area a of the gap between the outer wall of the float 3 and the inner wall of the transparent sleeve 2 and the flow rate Q flowing through the transparent sleeve 2 satisfies the following formula:
when the clearance between the outer wall of the float 3 and the inner wall of the transparent sleeve 2 is larger, the gas flow in the transparent sleeve 2 can be larger, so that the longer the gas flow measuring range which can support monitoring is, the wider the application range is.
In this embodiment, in use, the transparent sleeve 2 with the float 3 attached thereto is vertically disposed, and a gap through which gas passes is provided between the inner wall of the transparent sleeve 2 and the float 3.
The lower end of the transparent sleeve 2 is connected with a gas transmission pipeline, the upper end of the transparent sleeve is connected with a negative pressure device, and at the moment, as shown in fig. 2, the pipeline opening at the lower end of the transparent sleeve 2 is aligned with the floater 3, so that gas is directly purged to the lower end of the floater 3, and the floater 3 can stably rise.
When the gas output by the suction gas pipeline of the negative pressure device flows through the flowmeter 1, the gas flows from the lower end to the upper end of the transparent sleeve 2, the outer wall of the float 3 plays a role in guiding the flowing direction of the gas, and meanwhile, under the purging action of the gas, a gap between the outer wall of the float 3 and the inner wall of the transparent sleeve 2 generates pressure difference force, so that the float 3 overcomes the gravity to float up and down in the transparent sleeve 2.
When the differential pressure force and the gravity borne by the floater 3 rise to a certain position in the transparent sleeve 2 to achieve dynamic balance at the floater 3, the position of the top end of the floater 3 is the flow value of the gas flowing through the transparent sleeve 2, so that the flow of the gas flowing through the transparent sleeve 2 is monitored in real time.
In the utility model, when the gap between the outer wall of the float 3 and the inner wall of the transparent sleeve 2 is larger, the gas flow in the transparent sleeve 2 can be larger, so that the longer the gas flow range which can support monitoring is, the wider the application range is.
Since the glass tube of the glass tube flowmeter used in the anesthesia machine in the prior art is provided with the guide rail used for the float to slide up and down, the outer wall of the float is not contacted with the inner wall of the glass tube, but the inner wall of the float is contacted with the guide rail, friction force exists, and the accuracy of the flowmeter is reduced.
The transparent sleeve 2 in this embodiment does not need to install a guide rail, the float 3 is set to an axisymmetric structure, at this time, the pipe opening at the lower end of the transparent sleeve 2 is aligned with the lower end of the float 3 for purging, so that the float 3 can stably rise, and meanwhile, the float 3 is not contacted with the inner wall of the transparent sleeve 2, so that the accuracy of the flowmeter 1 can be improved. Meanwhile, the flowmeter 1 has a simple structure, fewer component parts and is convenient for assembly production, test and overhaul.
Example two
Referring to fig. 2, the transparent sleeve 2 of the present embodiment has an axisymmetric structure.
In this embodiment, the entire structure of the transparent sleeve 2 may be in a truncated cone shape, and the inner wall thereof is also in a truncated cone shape.
Specifically, transparent sleeve 2 sets up perpendicularly for float 3 also keeps the in-process that floats from top to bottom of vertical state in transparent sleeve 2, and the outer wall of float 3 and the inner wall of transparent sleeve 2 are contactless, avoid float 3 in the elevating movement in-process, and the outer wall of float 3 and the inner wall butt of transparent sleeve 2 produce frictional force, influence the measured value, are favorable to guaranteeing the accuracy of flowmeter 1 measurement obtained numerical value.
Example III
Referring to fig. 2 to 5, the inner wall of the transparent sleeve 2 in the present embodiment is a conical surface with axisymmetric structure, an included angle θ is formed between the symmetry axis of the transparent sleeve 2 and the bus of the transparent sleeve 2, and the included angle θ satisfies the relationship: θ is more than 0 and less than or equal to 8 degrees.
In this embodiment, the inner wall of the transparent sleeve 2 is a conical surface. Wherein, as shown in fig. 4, the symmetry axis of the transparent sleeve 2 is H.
Specifically, a generatrix is a line segment at any point on the circumference of the base of the apex of any cone. Wherein the circumference formed by the bottom surface is the alignment line. As shown in fig. 4, the busbar is M and the guideline is C.
Specifically, the included angle between the symmetry axis H of the transparent sleeve 2 and the quasi-line C of the transparent sleeve 2 is an included angle θ, as shown in fig. 5.
In this way, the transparent sleeve 2 can be applied to measuring cylinders with different measuring ranges, and the application of the flowmeter 1 is effectively increased
The range can be changed by changing the included angle between the symmetry axis of the transparent sleeve 2 and the bus M of the transparent sleeve 2 by 5 degrees, so that the measuring range of the flowmeter 1 can be changed.
Example IV
Referring further to fig. 2, the central axis of the float 3 mounted in the transparent sleeve 2 of the flowmeter 1 of the present embodiment is parallel or coincident with the central axis of the transparent sleeve 2.
In the present embodiment, the central axis of the float 3 coincides with the central axis of the transparent sleeve 2, so that the float 30 can be kept vertically floating up and down in the transparent sleeve 2.
In the process that the floater 3 floats up and down, or when a certain position in the transparent sleeve 2 rises to achieve dynamic balance, the outer wall of the floater 3 is not in contact with the inner wall of the transparent sleeve 2, so that the phenomenon that the outer wall of the floater 3 is abutted with the inner wall of the transparent sleeve 2 and generates friction force in the lifting movement process of the floater 3 to influence a measured value is avoided, and the accuracy of the measured value of the flowmeter 1 is guaranteed.
5Example five
Referring to fig. 2 to 3, the float 3 of the flowmeter 1 of the present embodiment is tapered, and the taper of the tapered portion of the float 3 ranges from 45 ° to 170 °.
The conical outer wall of the float 3 is capable of playing a certain guiding role when the gas flows through the transparent sleeve 2,
and the float 3 can be uniformly stressed in the floating process, and is kept in a 0 vertical state in the floating process in the transparent sleeve 2, so that the accuracy of the measured value is guaranteed.
Example six
Referring to fig. 2, the height of the float 3 of the present embodiment is greater than one eighth of the height of the transparent sleeve 2 and less than one fourth of the height of the transparent sleeve 2.
In this way, enough space is reserved in the transparent sleeve 2 for the float 3 to float up and down in the transparent sleeve 25, and to rise to a certain position in the transparent sleeve 2 under the blowing action of the gas
To dynamic equilibrium. At this time, the position of the top end of the float 3 is the flow value of the gas flowing through the transparent sleeve 2, so that the flow of the gas flowing through the transparent sleeve 2 is monitored in real time, the flow meter 1 is ensured to have enough flow range to support monitoring, and the application range is enlarged.
Example seven
Referring to fig. 2 to 3, an annular flange 31 is disposed at the top end of the float 3 of the flowmeter 1 of the present embodiment, and the height of the annular flange 31 is greater than one eighth of the height of the float 3 and less than one fourth of the height of the float 3, so that the float 3 is uniformly stressed during the floating process, and is kept in a vertical state during the floating process in the transparent sleeve 2, thereby ensuring the accuracy of the measured value.
Example eight
Referring to fig. 1 to 3, the flowmeter 1 of the present embodiment further includes a first connector 11 and a second connector 12, the first connector 11 is communicated with one end of the transparent sleeve 2 near the bottom end of the float 3, and a first sealing pad 4 is disposed between the first connector 11 and the transparent sleeve 2;
the second joint 12 is communicated with one end of the transparent sleeve 2 close to the top end of the floater 3, and a second sealing gasket 5 is arranged between the second joint 12 and the transparent sleeve 2.
In this embodiment, a first mounting groove for mounting the first sealing pad 4 is formed in the inner wall of the upper end of the transparent sleeve 2, and the transparent sleeve 2 mounted with the first sealing pad 4 is fixedly connected with the first joint 11. The gap between the first joint 11 and the transparent sleeve 2 is sealed through the first sealing gasket 4, so that the air tightness of the joint between the first joint 11 and the transparent sleeve 2 is ensured, and the accuracy of the measured value is guaranteed;
in this embodiment, a second mounting groove for mounting the second sealing pad 5 is formed in the inner wall of the upper end of the transparent sleeve 2, and the transparent sleeve 2 mounted with the second sealing pad 5 is fixedly connected with the second joint 12. The gap between the second joint 12 and the transparent sleeve 2 is sealed through the second sealing gasket 5, so that the air tightness of the joint between the second joint 12 and the transparent sleeve 2 is guaranteed, and the accuracy of the measured value is guaranteed.
Optionally, the first sealing gasket 4 and the second sealing gasket 5 are both silica gel gaskets or rubber gaskets, so that assembly production is facilitated. The specific structure and materials of the first gasket 4 and the second gasket 5 are not limited herein.
Optionally, the second gasket 5 is provided with a limiting portion 51, the limiting portion 51 being used to prevent the float 3 from escaping the transparent sleeve 2.
In this embodiment, since the top surface of the float 3 is a flat surface, when the gas flow exceeds the maximum flow range that can be monitored by the flow meter 1, the float 3 rises to the top surface to come into contact with the stopper 51 of the second gasket 5. At this time, the limiting part 51 of the second sealing gasket 5 plays a role in limiting the displacement of the float 3, preventing the float 3 from separating from the transparent sleeve 2 under the impact of the airflow, and damaging the flowmeter 1, thereby being beneficial to prolonging the service life of the flowmeter 1.
Example nine
Referring to fig. 2, the inner wall of the bottom end of the transparent sleeve 2 of the present embodiment is provided with a limiting rib 21 abutting against the float 3.
When the assembly, put into transparent sleeve 2 with float 3 in, because float 3 is the awl shape for the annular flange 31 of float 3 and the spacing muscle 21 butt in the transparent sleeve 2 realize fixing float 3 installation in the preset position in transparent sleeve 2, float 3 keeps the vertical state this moment, and then makes the axis of float 3 and the axis of transparent sleeve 2 parallel or coincide, effectively prevent when flowmeter 1 is in waiting the state of use, the bottom of float 3 and the inner wall butt of transparent sleeve 2 cause flowmeter 1 impaired, be favorable to prolonging flowmeter 1's life.
Examples ten
Referring to fig. 1 to 3, the present utility model also provides a respiratory anesthesia support apparatus, which includes the above-mentioned flowmeter 1.
In this embodiment, install flowmeter 1 on the anesthesia support equipment, flowmeter 1 will install the transparent sleeve 2 vertical setting of float 3, utilize the lower extreme of transparent sleeve 2 to connect the gas-supply pipeline, negative pressure device is connected to the upper end, be equipped with the clearance that supplies the gas to pass through between the inner wall of transparent sleeve 2 and the float 3, when negative pressure device suction gas-supply pipeline output's gas flow flowmeter 1, gas flows from the lower extreme towards the upper end of transparent sleeve 2, the outer wall of float 3 plays the effect of direction gas flow direction, under the sweeping action of gas, the clearance between the outer wall of float 3 and the inner wall of transparent sleeve 2 produces the differential pressure, make float 3 overcome gravity and act on the transparent sleeve 2 and float from top to bottom.
In the utility model, when the gap between the outer wall of the float 3 and the inner wall of the transparent sleeve 2 is larger, the gas flow in the transparent sleeve 2 can be larger, so that the longer the gas flow range which can support monitoring is, the wider the application range is. Meanwhile, the flowmeter 1 has a simple structure, fewer component parts and is convenient for assembly production, test and overhaul.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. A flow meter, comprising:
the inner diameter of the transparent sleeve is reduced from the top to the bottom, and scale marks are arranged on the transparent sleeve;
the floater is arranged in the transparent sleeve, is of an axisymmetric structure and has a diameter decreasing from the top end to the bottom end;
a gap for gas to pass through is arranged between the transparent sleeve and the floater;
the cross-sectional area of the gap, a, versus the flow rate, Q, through the transparent sleeve satisfies the following equation:
wherein m is the mass of the floater, g is the gravitational acceleration, ρ 1 Is of air density, V 1 The volume of the entire float, C is the drag coefficient, ρ is the density of the float, and S is the cross-sectional area of the float.
2. The flowmeter of claim 1, wherein said transparent sleeve is of axisymmetric construction.
3. The flowmeter of claim 2, wherein the central axis of the float is parallel or coincident with the central axis of the transparent sleeve.
4. The flowmeter of claim 3, wherein the inner wall of the transparent sleeve is a conical surface with an axisymmetric structure, an included angle θ is formed between the symmetry axis of the transparent sleeve and a bus of the transparent sleeve, and the included angle θ satisfies the relation: θ is more than 0 and less than or equal to 8 degrees.
5. The flowmeter of claim 1, wherein the float is tapered in shape, and the float taper has a taper in the range of 45 ° to 170 °.
6. The flowmeter of claim 1, wherein the height of the float is greater than one eighth and less than one quarter of the height of the transparent sleeve.
7. The flowmeter of claim 1, wherein the top end of the float is provided with an annular flange having a height greater than one eighth and less than one quarter of the height of the float.
8. The flowmeter of claim 1, wherein said flowmeter further comprises:
the first connector is communicated with one end, close to the bottom end of the floater, of the transparent sleeve, and a first sealing gasket is arranged between the first connector and the transparent sleeve;
the second joint, the second joint with transparent sleeve is close to the one end intercommunication on float top, the second joint with be provided with the second between the transparent sleeve and seal the pad, the second is sealed to be provided with spacing portion, spacing portion is used for preventing the float breaks away from transparent sleeve.
9. The flowmeter of claim 1, wherein the inner wall of the bottom end of the transparent sleeve is provided with a limit rib which is mutually abutted with the floater.
10. A respiratory anesthesia support apparatus comprising the flow meter according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223552584.2U CN219200508U (en) | 2022-12-29 | 2022-12-29 | Flowmeter and respiratory anesthesia supporting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223552584.2U CN219200508U (en) | 2022-12-29 | 2022-12-29 | Flowmeter and respiratory anesthesia supporting equipment |
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| Publication Number | Publication Date |
|---|---|
| CN219200508U true CN219200508U (en) | 2023-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223552584.2U Active CN219200508U (en) | 2022-12-29 | 2022-12-29 | Flowmeter and respiratory anesthesia supporting equipment |
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| Country | Link |
|---|---|
| CN (1) | CN219200508U (en) |
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- 2022-12-29 CN CN202223552584.2U patent/CN219200508U/en active Active
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