CN111466913A - Portable simple vital capacity testing device - Google Patents
Portable simple vital capacity testing device Download PDFInfo
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- CN111466913A CN111466913A CN202010330200.9A CN202010330200A CN111466913A CN 111466913 A CN111466913 A CN 111466913A CN 202010330200 A CN202010330200 A CN 202010330200A CN 111466913 A CN111466913 A CN 111466913A
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- air inlet
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/091—Measuring volume of inspired or expired gases, e.g. to determine lung capacity
- A61B5/093—Measuring volume of inspired or expired gases, e.g. to determine lung capacity the gases being exhaled into, or inhaled from, an expansible chamber, e.g. bellows or expansible bag
- A61B5/095—Measuring volume of inspired or expired gases, e.g. to determine lung capacity the gases being exhaled into, or inhaled from, an expansible chamber, e.g. bellows or expansible bag within a rigid container, e.g. the boundary being formed by a liquid surface
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pulmonology (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Physiology (AREA)
- Heart & Thoracic Surgery (AREA)
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- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The invention discloses a portable simple vital capacity testing device which comprises a measuring pipe body, wherein the measuring pipe body is arranged in a transparent mode, a piston hole with an opening at the upper side is formed in the measuring pipe body, a light piston is sleeved in the piston hole, an air outlet hole is formed in the light piston, and a first one-way valve is arranged on the air outlet hole; the measuring pipe body is formed with an air inlet cavity with an opening at the lower side, and the upper bottom surface of the air inlet cavity is formed with a vent hole communicated with the lower cavity; a cylinder body with a radial bulge is formed on the outer wall of the lower end of the measuring tube body, an air inlet hole communicated with the air inlet cavity is formed on the cylinder body, and the outer end of the air inlet hole is connected with a detachable disposable blowing nozzle; the inner end of the air inlet is provided with a second one-way valve which is fixed in the air inlet cavity, and the bottom of the air inlet cavity is hermetically connected with a bottom cover; scales are formed on the outer side wall of the piston hole. The portable vital capacity measuring device is simple in structure, small, exquisite, light and easy to carry, the vital capacity is measured through the rising height of the light piston, and the measuring result is accurate.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a portable and simple vital capacity testing device.
Background
The lung capacity is the maximum ventilation of a breath and reflects the potential capacity of the ventilator in a certain sense. At present, in some school schools, a spirometer is frequently used for students to perform lung function detection for the students during physical examination; the lung capacity can be detected to judge the strength of the human breathing function, the nature and degree of the reduction of some breathing functions and the labor capacity after the recovery of diseases, and the lung capacity is often used as a reference in clinic. The electronic spirometer is a pulmonary function detection device with strong applicability, mainly comprises a power supply, a host, a hose and a funnel type blowing nozzle, and has the advantages of large volume, difficult carrying, power supply requirement and high working requirement.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a portable and simple vital capacity testing device which is simple in structure, small, exquisite, portable and easy to carry, detects the vital capacity through the rising height of a light piston and is accurate in testing result.
The scheme for solving the technical problems is as follows:
a portable simple vital capacity testing device comprises a transparent measuring pipe body, wherein a piston hole with an opening at the upper side is formed in the measuring pipe body, a light piston is sleeved in the piston hole and divides the piston hole into an upper cavity and a lower cavity, an air outlet communicated with the upper cavity and the lower cavity is formed in the light piston, and a first one-way valve is arranged on the air outlet; the measuring pipe body is provided with an air inlet cavity with an opening at the lower side, and the upper bottom surface of the air inlet cavity is provided with a vent hole communicated with the lower cavity; a cylinder body with a radial bulge is formed on the outer wall of the lower end of the measuring tube body, an air inlet hole communicated with the air inlet cavity is formed on the cylinder body, and the outer end of the air inlet hole is connected with a detachable disposable blowing nozzle; the inner end of the air inlet hole is provided with a second one-way valve which is fixed in the air inlet cavity, and the bottom of the air inlet cavity is hermetically connected with a bottom cover; scales are formed on the outer side wall of the piston hole.
The material of light piston is nylon, the shaping has the seal groove on the outer wall of light piston, has cup jointed O type circle in the seal groove, and O type circle presses on the inner wall in piston hole.
A groove is formed in the lower bottom surface of the light piston;
the first check valve comprises a first base ball arranged in the groove, the outer wall of the first base ball is coated with a first rubber sleeve, and the first rubber sleeve is pressed against the lower port part of the air outlet; the first base ball is fixed at the lower end of a first connecting rod, the first connecting rod penetrates through the upper portion of the air outlet hole and extends out to be fixed with a top plate, and a pressure spring is clamped between the top plate and the upper bottom surface of the light piston; the pressure spring presses the lower extreme at the depression bar, and the upper end plug bush of depression bar is on the upper cover, and the upper cover is fixed in the upper end of measuring the body.
A threaded hole and a middle hole are formed in the inner wall of the outer end of the air inlet hole;
the disposable blowing nozzle comprises a blowing nozzle and a connecting pipe which are integrally formed, outer wall threads are formed on the outer wall of the connecting pipe close to the blowing nozzle, and the outer diameter of one end of the connecting pipe far away from the blowing nozzle is matched with the inner diameter of the middle hole; the outer wall is screwed on the threaded hole.
And a second sealing groove is formed in the inner wall of the middle hole, a second O-shaped ring is sleeved in the second sealing groove, and the second O-shaped ring is pressed against the outer wall of the connecting pipe.
The second check valve comprises a second base ball, a second rubber sleeve is coated on the outer wall of the second base ball, and the second rubber sleeve is pressed against the inner end of the air inlet; a second connecting rod is fixed at one end of the second base ball, which is far away from the air inlet hole, a guide post is fixed at the other end of the second connecting rod, the guide post is inserted and sleeved in a guide post sleeve, and the other end of the guide post sleeve is inserted and sleeved on the side wall of the air inlet cavity; and a second pressure spring is clamped between the guide post and the bottom surface of the guide post sleeve.
And a sealing gasket is clamped between the bottom cover and the lower end surface of the measuring pipe body.
The invention has the following outstanding effects: compared with the prior art, its simple structure and small and exquisite light easily carry, the size of the volume of living of rising height detection lung through the light piston, and the test result is accurate.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
fig. 3 is a partially enlarged view of fig. 1 about B.
Detailed Description
In the embodiment, as shown in fig. 1 to 3, a portable simple vital capacity testing device comprises a transparent measuring tube body 1, wherein the measuring tube body 1 is formed with a piston hole 11 with an upper side opening, a light piston 2 is sleeved in the piston hole 11, the piston hole 11 is divided into an upper cavity and a lower cavity by the light piston 2, an air outlet 21 communicating the upper cavity with the lower cavity is formed in the light piston 2, and a first one-way valve 3 is arranged on the air outlet 21; an air inlet cavity 12 with an opening at the lower side is formed on the measuring pipe body 1, and a vent hole 13 communicated with the lower cavity 112 is formed on the upper bottom surface of the air inlet cavity 12; a cylinder 14 protruding in the radial direction is formed on the outer wall of the lower end of the measuring tube body 1, an air inlet hole 15 communicated with the air inlet cavity 12 is formed on the cylinder 14, and the outer end of the air inlet hole 15 is connected with a detachable disposable blowing nozzle 4; the inner end of the air inlet hole 15 is provided with a second one-way valve 5, the second one-way valve 5 is fixed in the air inlet cavity 12, and the bottom of the air inlet cavity 12 is hermetically connected with a bottom cover 6; the outer side wall of the piston hole 11 is formed with a scale 16.
Furthermore, the light piston 2 is made of nylon, a sealing groove is formed in the outer wall of the light piston 2, an O-ring 22 is sleeved in the sealing groove, and the O-ring 22 is pressed against the inner wall of the piston hole 11.
Furthermore, a groove 23 is formed on the lower bottom surface of the light piston 2;
the first check valve 3 comprises a first base ball 31 arranged in the groove 23, the outer wall of the first base ball 31 is coated with a first rubber sleeve 32, and the first rubber sleeve 32 is pressed against the lower end opening part of the air outlet 21; the first base ball 31 is fixed at the lower end of a first connecting rod 33, the first connecting rod 33 extends out of the air outlet hole 21 and is fixed with a top plate 34, and a pressure spring 35 is clamped between the top plate 34 and the upper bottom surface of the light piston 2; the pressure spring 35 presses against the lower end of the pressure rod 36, the upper end of the pressure rod 36 is inserted and sleeved on the upper cover 37, and the upper cover 37 is fixed at the upper end of the measuring tube body 1.
Furthermore, a threaded hole 17 and a middle hole 18 are formed on the inner wall of the outer end of the air inlet hole 15;
the disposable blowing nozzle 4 comprises a blowing nozzle 41 and a connecting pipe 42 which are integrally formed, outer wall threads 43 are formed on the outer wall of the connecting pipe 42 close to the blowing nozzle 41, and the outer diameter of one end of the connecting pipe 42 far away from the blowing nozzle 41 is matched with the inner diameter of the middle hole 18; the outer wall threads 43 are threaded onto the threaded hole 17.
Furthermore, a second sealing groove is formed on the inner wall of the middle hole 18, a second O-ring 7 is sleeved in the second sealing groove, and the second O-ring 7 is pressed against the outer wall of the connecting pipe 42.
Furthermore, the second check valve 5 comprises a second base ball 51, the outer wall of the second base ball 51 is covered with a second rubber sleeve 52, and the second rubber sleeve 52 is pressed against the inner end of the air inlet 15; a second connecting rod 53 is fixed at one end of the second base ball 51 far away from the air inlet 15, a guide post 54 is fixed at the other end of the second connecting rod 53, the guide post 54 is inserted and sleeved in a guide post sleeve 55, and the other end of the guide post sleeve 55 is inserted and sleeved on the side wall of the air inlet cavity 12; a second compression spring 56 is clamped between the guide post 54 and the bottom surface of the guide post sleeve 55.
Further, a gasket 8 is interposed between the bottom cap 6 and the lower end surface of the measuring tube body 1.
The working principle is as follows: inserting the connecting pipe 42 of the disposable blowing nozzle 4 into the middle hole 18, and screwing the outer wall thread on the threaded hole 17, thereby fixing the disposable blowing nozzle 4 on the measuring tube body 1;
secondly, the disposable blowing nozzle 4 is blown, the second rubber sleeve 52 is blown away from the air inlet hole 15 by the air, the air enters the air inlet cavity 12 from the air inlet hole 15 and then enters the lower cavity 112 through the air outlet hole 13, the light piston 2 is pushed upwards by the air in the lower cavity 112, the size of vital capacity can be seen through the upward moving amplitude of the light piston 2, and the upward moving amount of the light piston 2 can be more accurately measured by the scales 16; when the army blows air through the disposable blow nozzle, the second rubber sleeve 52 automatically seals the air inlet 15 under the action of the second pressure spring 56, so that the testing accuracy is improved; after the test is finished, the pressing rod 36 is inserted from the upper cover 37, the pressing rod pushes the top plate 34 downwards, the top plate 34 drives the compression spring 35 to compress and the first connecting rod 33 to move downwards, the first connecting rod 33 drives the first rubber sleeve 32 to be separated from the air outlet hole 21, so that air in the lower cavity is discharged, and meanwhile, the light piston moves downwards to reset under the downward force applied to the light piston by the compression spring 35.
Finally, the above embodiments are only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.
Claims (7)
1. The utility model provides a light simple and easy type vital capacity testing arrangement, includes transparent measurement body (1) that sets up, its characterized in that: the measuring tube body (1) is formed with a piston hole (11) with an opening at the upper side, a light piston (2) is sleeved in the piston hole (11), the light piston (2) divides the piston hole (11) into an upper cavity and a lower cavity, an air outlet (21) communicating the upper cavity with the lower cavity is formed in the light piston (2), and a first one-way valve (3) is arranged on the air outlet (21); an air inlet cavity (12) with an opening at the lower side is formed in the measuring pipe body (1), and a vent hole (13) communicated with the lower cavity (112) is formed in the upper bottom surface of the air inlet cavity (12); a cylinder (14) protruding in the radial direction is formed on the outer wall of the lower end of the measuring tube body (1), an air inlet hole (15) communicated with the air inlet cavity (12) is formed on the cylinder (14), and the outer end of the air inlet hole (15) is connected with a detachable disposable blowing nozzle (4); the inner end of the air inlet hole (15) is provided with a second one-way valve (5), the second one-way valve (5) is fixed in the air inlet cavity (12), and the bottom of the air inlet cavity (12) is hermetically connected with a bottom cover (6); scales (16) are formed on the outer side wall of the piston hole (11).
2. The portable and simplified spirometric device of claim 1, wherein: the material of light piston (2) is nylon, the shaping has the seal groove on the outer wall of light piston (2), has cup jointed O type circle (22) in the seal groove, and O type circle (22) press on the inner wall in piston hole (11).
3. The portable and simplified spirometric device of claim 1, wherein: a groove (23) is formed in the lower bottom surface of the light piston (2);
the first check valve (3) comprises a first base ball (31) arranged in the groove (23), the outer wall of the first base ball (31) is coated with a first rubber sleeve (32), and the first rubber sleeve (32) is pressed against the lower end opening of the air outlet (21); the first base ball (31) is fixed at the lower end of a first connecting rod (33), the first connecting rod (33) penetrates through the air outlet hole (21) and extends out to be fixed with a top plate (34), and a pressure spring (35) is clamped between the top plate (34) and the upper bottom surface of the light piston (2); the pressure spring (35) presses against the lower end of the pressure rod (36), the upper end of the pressure rod (36) is inserted and sleeved on the upper cover (37), and the upper cover (37) is fixed at the upper end of the measuring pipe body (1).
4. The portable and simplified spirometric device of claim 1, wherein: a threaded hole (17) and a middle hole (18) are formed in the inner wall of the outer end of the air inlet hole (15);
the disposable blowing nozzle (4) comprises a blowing nozzle (41) and a connecting pipe (42) which are integrally formed, outer wall threads (43) are formed on the outer wall of the connecting pipe (42) close to the blowing nozzle (41), and the outer diameter of one end, far away from the blowing nozzle (41), of the connecting pipe (42) is matched with the inner diameter of the middle hole (18); the outer wall thread (43) is screwed on the threaded hole (17).
5. The portable and simplified spirometric device as set forth in claim 4, wherein: and a second sealing groove is formed in the inner wall of the middle hole (18), a second O-shaped ring (7) is sleeved in the second sealing groove, and the second O-shaped ring (7) is pressed against the outer wall of the connecting pipe (42).
6. The portable and simplified spirometric device of claim 1, wherein: the second one-way valve (5) comprises a second base ball (51), a second rubber sleeve (52) is coated on the outer wall of the second base ball (51), and the second rubber sleeve (52) is pressed against the inner end of the air inlet hole (15); a second connecting rod (53) is fixed at one end, away from the air inlet hole (15), of the second base ball (51), a guide column (54) is fixed at the other end of the second connecting rod (53), the guide column (54) is inserted and sleeved in a guide column sleeve (55), and the other end of the guide column sleeve (55) is inserted and sleeved on the side wall of the air inlet cavity (12); a second pressure spring (56) is clamped between the guide post (54) and the bottom surface of the guide post sleeve (55).
7. The portable and simplified spirometric device of claim 1, wherein: and a sealing gasket (8) is clamped between the bottom cover (6) and the lower end surface of the measuring pipe body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010330200.9A CN111466913A (en) | 2020-04-24 | 2020-04-24 | Portable simple vital capacity testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010330200.9A CN111466913A (en) | 2020-04-24 | 2020-04-24 | Portable simple vital capacity testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111466913A true CN111466913A (en) | 2020-07-31 |
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ID=71763504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010330200.9A Withdrawn CN111466913A (en) | 2020-04-24 | 2020-04-24 | Portable simple vital capacity testing device |
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| Country | Link |
|---|---|
| CN (1) | CN111466913A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112890802A (en) * | 2021-01-14 | 2021-06-04 | 电子科技大学 | Breathing self-driven lung volume detection device and preparation method thereof |
-
2020
- 2020-04-24 CN CN202010330200.9A patent/CN111466913A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112890802A (en) * | 2021-01-14 | 2021-06-04 | 电子科技大学 | Breathing self-driven lung volume detection device and preparation method thereof |
| CN112890802B (en) * | 2021-01-14 | 2022-06-10 | 电子科技大学 | Breathing self-driven lung volume detection device and preparation method thereof |
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Application publication date: 20200731 |
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| WW01 | Invention patent application withdrawn after publication |