CN219782541U

CN219782541U - Connecting assembly for flow sensor and lung function detector

Info

Publication number: CN219782541U
Application number: CN202321166980.3U
Authority: CN
Inventors: 龚颖; 薛丽萍; 李丽; 张明斐; 汤欣怡; 宋元林; 胡莉娟; 沈志文; 赵振
Original assignee: Zhongshan Hospital Fudan University
Current assignee: Zhongshan Hospital Fudan University
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2023-10-03
Anticipated expiration: 2033-05-15

Abstract

The utility model provides a connecting component for a flow sensor and a lung function detector, and relates to the technical field of lung function detection, comprising a fixed pipe and a connecting pipe; the fixed pipe is sleeved outside the connecting pipe, and the fixed pipe is communicated with the connecting pipe; the connecting pipe is rotatable in the connecting pipe, so that the checking requirements of different users can be met conveniently; the fixed pipe comprises a first limiting part, the first limiting part is positioned at the lower end of the fixed pipe, and the upper end of the connecting pipe is limited in the fixed pipe through the first limiting part; the connecting pipe comprises a second limiting part, an elastic component is arranged between the upper end of the fixed pipe and the second limiting part, and the air tightness between the connecting pipe and the fixed pipe is improved through the elastic component; the upper end of the fixed pipe is connected with a mechanical arm of the lung function detector, and the lower end of the connecting pipe is detachably connected with the flow sensor, so that the flow sensor is convenient to install and detach.

Description

Connecting assembly for flow sensor and lung function detector

Technical Field

The utility model relates to the technical field of lung function detection, in particular to a connecting component for a flow sensor and a lung function detector.

Background

The lung function examination is a noninvasive physical examination method, has the advantages of high sensitivity, good repeatability, convenient detection and the like, and is an important means for clinically evaluating chest and lung diseases and respiratory physiology, including examination in aspects of lung ventilation, lung dispersion, airway resistance, closure volume, airway compliance and the like. Because of its important roles in diagnosis, differential diagnosis and follow-up of chronic airway diseases, lung function examination becomes a key link and parameter for monitoring in respiratory chronic disease management, and in recent years, with the popularization of respiratory chronic disease management, lung function examination is widely popularized and applied.

In the process of lung function examination, a subject is required to repeatedly exhale and inhale on a lung function detector at different flow rates, and the lung function detector measures electric signals generated when different air flows flow sensors, and the lung volume, the exhale flow and the alveolar diffusion function of the subject in different periods are detected through calibration.

The existing lung function detector often encounters the following problems in clinical use:

1. because the flow sensor and the instrument mechanical arm are connected in an inserting connection mode, the flow sensor is easy to shake or even fall off in the detection process, and the air tightness between the flow sensor and the instrument mechanical arm is poor;

2. for the phenomenon, the connection part of the connecting component and the port of the flow sensor is often wrapped by each large hospital, so that the method is rough and cannot meet the safety requirement and the sensing and control standard, and the method makes the taking-out process and the installation process of the flow sensor complicated.

3. The mode of wrapping the connection part of the connecting assembly and the port of the flow sensor can lead to relatively fixed positions of the flow sensor and the mechanical arm, and can not meet the inspection requirements of individual users.

Therefore, there is a need for a connection assembly for a flow sensor and a lung function detector.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a connecting component and a lung function detector for a flow sensor, wherein the connecting component for the flow sensor comprises a fixed pipe and a connecting pipe, the fixed pipe is sleeved outside the connecting pipe and communicated with the connecting pipe, the upper end of the fixed pipe is connected with a mechanical arm through a fixed plate, and the lower end of the fixed pipe is abutted with the upper end of the connecting pipe so as to increase the air tightness between the fixed pipe and the connecting pipe; the connecting pipe and the flow sensor are connected in a clamping, buckling, threaded connection and other modes, so that the air tightness between the connecting pipe and the flow sensor is improved; the lower extreme and the flow sensor of connecting pipe can dismantle the connection, be convenient for flow sensor's take out and installation.

The aim of the utility model can be achieved by the following technical scheme:

according to one object of the present utility model, there is provided a connection assembly for a flow sensor, comprising: a fixed pipe and a connecting pipe;

the fixed pipe is sleeved outside the connecting pipe, and the fixed pipe is communicated with the connecting pipe;

the fixed pipe comprises a first limiting part, the first limiting part is positioned at the lower end of the fixed pipe, and the upper end of the connecting pipe is limited in the fixed pipe through the first limiting part;

the upper end of the fixed pipe is connected with a mechanical arm of the lung function detector, and the lower end of the connecting pipe is detachably connected with the flow sensor.

As a preferred embodiment, the connecting pipe includes a second limiting portion; the second limiting part is positioned at the upper end of the connecting pipe; the bottom of the second limiting part is attached to the top of the first limiting part.

As a preferred embodiment, the inner diameter of the first limiting portion is greater than or equal to the outer diameter of the connecting tube, so that the connecting tube is rotatably accommodated in the fixed tube.

As a preferred embodiment, at least one elastic component is disposed between the upper end of the fixed tube and the second limiting portion, and the original length of the elastic component is greater than the maximum distance between the upper end of the fixed tube and the second limiting portion.

As a preferred embodiment, the upper end of the fixing tube is bent inwards to form a third limiting part, one end of the elastic component is connected with the bottom of the third limiting part, and the other end of the elastic component is connected with the top of the second limiting part.

As a preferred embodiment, the lower end of the connection pipe is screwed with the flow sensor.

As a preferred embodiment, a plurality of connecting pieces are arranged on the outer wall of the connecting pipe at intervals, and the connecting pieces are matched with the buckles of the flow sensor.

As a preferred embodiment, a plurality of limit grooves are arranged at the lower end of the connecting pipe, and the limit grooves are positioned on the inner wall of the connecting pipe; the limiting groove is matched with the fixing piece of the flow sensor in a clamping mode.

As a preferred embodiment, the upper end of the fixing tube is provided with a fixing plate, a plurality of mounting holes are formed in the fixing plate, and the mounting holes are matched with the mechanical arm.

The utility model provides a lung function detector, comprising: a detector body, a mechanical arm, a flow sensor and a connection assembly for a flow sensor as described above;

the detector main body is connected with the mechanical arm; the mechanical arm is connected with the flow sensor through the connecting component;

the connection assembly comprises: a fixed pipe and a connecting pipe;

Compared with the prior art, the technical scheme has the following advantages:

1. the upper end of the connecting pipe is abutted with the lower end of the fixed pipe, and an elastic component is arranged between the upper end of the fixed pipe and the lower end of the connecting pipe, so that the air tightness between the connecting pipe and the fixed pipe is improved;

2. the connecting pipe is connected with the flow sensor in a clamping, buckling or threaded mode, so that the air tightness between the connecting assembly and the flow sensor is improved, and the flow sensor is convenient to detach and install.

3. The connecting pipe is rotatably accommodated in the fixed pipe so as to adapt to detection requirements of different users.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic view of a connection assembly for a flow sensor according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural view of a fixing plate of a connection assembly for a flow sensor according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram showing a second structure of a connection assembly for a flow sensor according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram III of a connection assembly for a flow sensor according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a connection assembly for a flow sensor according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a flow sensor according to an embodiment of the present disclosure.

In the figure: the device comprises a fixed pipe 1, a first limiting part 11, a connecting pipe 2, a second limiting part 21, an elastic component 3, a third limiting part 4, a connecting piece 5, a limiting groove 6, a fixed plate 7, a flow sensor 100, the upper end of the flow sensor 101 and a fixed piece 102.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The most important "flow-volume curve" in the lung function test requires the subject to repeatedly inhale and exhale with maximum effort, one end of the connection assembly is fixed on the mechanical arm through a nut, and the flow sensor 100 is generally plugged into the other end of the connection assembly to achieve connection between the mechanical arm and the flow sensor 100.

Because the flow sensor 100 is inserted into the connecting component, when the lung function detection is carried out, if the force application mode of a subject is incorrect, the connection between the flow sensor 100 and the mechanical arm of the instrument is easy to loosen, so that the flow sensor 100 is caused to shake or even fall off; if the joint of the flow sensor 100 and the mechanical arm is repeatedly swayed, uneven stress may possibly cause fracture and other conditions of the connection port; the leakage caused by the falling-off of the flow sensor 100 is very easy to occur, and thus parameters such as measured volume and flow are affected, which may cause failure in inspection. If the flow sensor 100 falls to the ground, it is also susceptible to damage to critical components.

For the above-mentioned phenomenon, each large hospital often wraps the connection portion between the connection assembly and the flow sensor 100, and it is common practice to adhere an adhesive tape to the inner wall/outer wall of the connection assembly, which increases the air tightness between the connection assembly and the flow sensor 100 to some extent, but this practice also makes the removal and installation of the flow sensor 100 laborious.

Moreover, since the flow sensor 100 is required to be disassembled for cleaning every day, and cleaned several times a day, the repeated disassembly/assembly tends to wear the edges of the adhesive tape, possibly resulting in curling, breakage, etc. To improve the air tightness, the adhesive tape needs to be replaced periodically, which clearly increases the cost of manpower and material resources.

Based on this, this specification provides a coupling assembling and pulmonary function detector for flow sensor, when avoiding flow sensor 100 on the pulmonary function detector to take place to drop, has improved the gas tightness, and is convenient for the dismantlement and the installation of flow sensor 100.

As shown in fig. 1, the present utility model provides a connection assembly for a flow sensor 100, comprising: a fixed pipe 1 and a connecting pipe 2;

the fixed pipe 1 and the connecting pipe 2 are coaxially arranged, and the fixed pipe 1 is communicated with the connecting pipe 2.

The fixed pipe 1 is sleeved outside the connecting pipe 2, wherein the upper end of the connecting pipe 2 is positioned inside the fixed pipe 1, and the lower end of the connecting pipe 2 is positioned outside the fixed pipe 1. The outer diameter of the connecting tube 2 is larger than the inner diameter of the fixing tube 1. Preferably, the fixed tube 1 is a hollow column, and each tube inner diameter of the fixed tube 1 is equal. The connecting pipe 2 is a hollow column, and the inner diameter of each pipe of the connecting pipe 2 is equal.

The upper end of fixed pipe 1 is connected with the arm of lung function detector, in order to fix coupling assembling on the arm, and specifically, the upper end of fixed pipe 1 is provided with fixed plate 7, has seted up a plurality of mounting hole on the fixed plate 7, mounting hole and arm adaptation. As shown in fig. 2, in one embodiment of the present specification, the upper end of the fixing tube 1 is bent outward to form a fixing plate 7, and the fixing plate 7 has a rectangular shape.

In another embodiment of the present disclosure, the surface of the fixing plate 7 is rectangular, and a through hole is formed in the middle of the fixing plate 7, and the shape and size of the through hole are consistent with those of the port at the upper end of the fixing tube 1. The through hole is coaxially arranged with the upper end of the fixed tube 1.

Be provided with a plurality of nut groove on the arm, the position in nut groove is unanimous with the position of mounting hole, and the quantity in nut groove is unanimous with the quantity of mounting hole.

The nuts sequentially pass through the mounting holes and the nut grooves and then are fixed in the nut grooves, so that the fixation of the mechanical arm and the fixed pipe 1 is realized. Preferably, the number of mounting holes is four.

The fixed pipe 1 comprises a first limiting part 11, the first limiting part 11 is positioned at the lower end of the fixed pipe 1, the upper end of the connecting pipe 2 is limited in the fixed pipe 1 through the first limiting part 11, and the lower end of the connecting pipe 2 penetrates out of the lower end of the fixed pipe 1.

Specifically, the connection pipe 2 includes a second limiting portion 21; the second limiting part 21 is positioned at the upper end of the connecting pipe 2; the bottom of the second limiting part 21 is attached to the top of the first limiting part 11. The inner diameter of the first limiting part 11 is larger than or equal to the outer diameter of the connecting pipe 2, so that the connecting pipe 2 can be rotatably accommodated in the fixed pipe 1.

In one embodiment of the present disclosure, the first limiting portion 11 includes an inner bending portion, and the lower end of the fixing tube 1 is bent inward to form the inner bending portion 11. The second limiting part 21 comprises an outer bending part, and the upper end of the connecting pipe 2 is bent outwards to form the outer bending part; the section of the outer bending part is annular, and the section of the inner bending part is annular; the inner diameter of the outer bending part is equal to the inner diameter of the connecting pipe, the outer diameter of the outer bending part is smaller than or equal to the inner diameter of the fixed pipe 1, the inner diameter of the inner bending part is larger than or equal to the outer diameter of the connecting pipe 2, the outer diameter of the inner bending part is equal to the inner diameter of the fixed pipe 1, so that the connecting pipe 2 is rotatably and telescopically accommodated in the fixed pipe 1, the upper end of the connecting pipe 2 further slides up and down in the fixed pipe 1, and the upper end of the connecting pipe 2 can rotate in the fixed pipe 1. The external diameter of the outer bending part is larger than the internal diameter of the inner bending part so as to limit the upper end of the connecting pipe 2 in the fixed pipe 1 and prevent the connecting pipe 2 from falling out from the lower end of the fixed pipe 1.

That is, the pipe inner diameter=the inner diameter of the outer bent portion of the connection pipe 2 < the pipe outer diameter of the connection pipe 2. The inner diameter of the inner bent portion < the outer diameter of the outer bent portion. The pipe inner diameter of the fixed pipe 1 < the outer diameter of the inner bent portion=the pipe outer diameter of the fixed pipe 1.

In practical application, under the action of gravity, the bottom of the second limiting part 21 is attached to the top of the first limiting part 11. The bending angle of the second limiting portion 21 may be the same as the bending angle of the first limiting portion 11, and the bending angle of the second limiting portion 21 may be different from the bending angle of the first limiting portion 11.

In order to increase the bonding area between the second limiting part 21 and the first limiting part 11 and further improve the air tightness between the connecting pipe 2 and the fixed pipe 1, preferably, the included angle between the second limiting part 21 and the connecting pipe 2 is 90 degrees, that is, the upper end of the connecting pipe 2 is bent outwards by 90 degrees to form the second limiting part 21; the included angle between the first limiting part 11 and the fixed pipe 1 is 90 degrees, that is, the lower end of the fixed pipe 1 is bent inwards by 90 degrees to form the first limiting part 11.

Considering that there may be a certain leakage due to gravity alone, and thus the error of the detected data is large, in order to improve the air tightness, as shown in fig. 3, in one embodiment of the present disclosure, at least one elastic component 3 is disposed between the upper end of the fixing tube 1 and the second limiting portion 21.

In order to prevent the elastic component 3 from falling out of the upper end of the fixed tube 1, the upper end of the fixed tube 1 is bent inwards to form a third limiting part 4. Preferably, the included angle between the third limiting part 4 and the fixed pipe 1 is 90 degrees.

One end of the elastic component 3 is abutted with the bottom of the third limiting part 4, and the other end of the elastic component 3 is abutted with the top of the second limiting part 21.

If a plurality of elastic components 3 are arranged between the upper end of the fixed pipe 1 and the second limiting part 21, in order to avoid displacement of the elastic components 3, one end of the elastic components 3 is fixedly connected with the bottom of the third limiting part 4, and the other end of the elastic components 3 is fixedly connected with the top of the second limiting part 21. In one embodiment of the present disclosure, the bottom of the third limiting portion 4 is provided with a first fixing portion, which is adapted to the elastic component 3. One end of the elastic component 3 passes through the first fixing part and is fixed at the bottom of the third limiting part 4; the top of the second limiting part 21 is provided with a second fixing part which is matched with the elastic component 3. The other end of the elastic member 3 is fixed to the top of the second stopper 21 through the second fixing portion.

The original length of the elastic component 3 is greater than the maximum distance between the upper end of the fixed tube 1 and the second limiting portion 21, so that the elastic component 3 is always in a compressed state, that is, the elastic force of the elastic component 3 gradually decreases as the distance between the upper end of the fixed tube 1 and the second limiting portion 21 increases.

When the bottom of the second limiting portion 21 is attached to the top of the first limiting portion 11, that is, when the distance between the upper end of the fixed tube 1 and the second limiting portion 21 is the largest, the elastic component 3 is still in a compressed state, so that the attaching degree of the second limiting portion 21 and the first limiting portion 11 is increased by means of the elastic force of the elastic component 3, and the air tightness of the fixed tube 1 and the connecting tube 2 is improved.

The number of the elastic components 3 is preferably one, and the elastic components 3 are preferably springs.

The lower end of the connection pipe 2 is detachably connected to the flow sensor 100. In one embodiment of the present disclosure, the lower end of the connection pipe 2 is screwed to the flow sensor 100. Specifically, the inner wall of the connecting pipe 2 is provided with internal threads, and preferably, the lower end of the connecting pipe 2 is provided with internal threads; the upper end 101 of the flow sensor 100 is provided with external threads, and the upper end 101 of the flow sensor 100 is located inside the connection tube 2 when the connection tube 2 is connected to the flow sensor 100.

Of course, the lower end of the connection pipe 2 may be provided with external threads, and the upper end 101 of the flow sensor 100 may be provided with internal threads, so that the upper end 101 of the flow sensor 100 is located outside the connection pipe 2 when the connection pipe 2 is connected to the flow sensor 100.

As shown in fig. 4, in another embodiment of the present disclosure, a plurality of connectors 5 are provided on the outer wall of the connection tube 2 at intervals, and the connectors 5 are snap-fitted with the flow sensor 100.

Specifically, the connecting piece 5 is located at the lower end of the connecting pipe 2, and the connecting piece 5 is a strip-shaped protruding piece, and the strip-shaped protruding piece is fastened with the buckle on the flow sensor 100, so that the efficiency of mounting and dismounting the flow sensor 100 is improved.

As shown in fig. 5-6, in another embodiment of the present disclosure, a plurality of limiting grooves 6 are disposed at the lower end of the connecting tube 2, the limiting grooves 6 are located on the inner wall of the connecting tube 2, and the limiting grooves 6 are engaged with the fixing member 102 of the flow sensor 100. Specifically, the limiting groove 6 sequentially comprises a guiding portion, a translation portion and a fixing portion from bottom to top, wherein the guiding portion and the fixing portion are respectively located at two ends of the translation portion, namely, two ends of the translation portion are respectively an initial end and a tail end, the guiding portion is communicated with the initial end of the translation portion, and the fixing portion is communicated with the tail end of the translation portion. The port of the lower end of the connecting pipe 2 is communicated with the guiding part, the translation part is vertical to the axial direction of the connecting pipe 2, and the fixing part is vertical to the translation part.

The outer ring of the upper end 101 of the flow sensor 100 is provided with fixing pieces 102, and the number of the fixing pieces 102 is the same as that of the limit grooves 6. The fixing member 102 is cylindrical, and the axial direction of the fixing member 102 is perpendicular to the axial direction of the flow sensor 100. When the upper end 101 of the flow sensor 100 is connected with the lower end of the connecting pipe 2, the fixing piece 102 is aligned with the guiding portion, after the fixing piece 102 enters the guiding portion, the flow sensor 100 is rotated, the fixing piece 102 enters the initial end of the translation portion, after reaching the tail end of the translation portion, under the operation of a user or based on the action of gravity, the fixing piece 102 enters the fixing portion downwards and is clamped at the fixing portion, and the limiting of the fixing piece 102 is performed through the limiting of the fixing portion, so that the installation of the connecting pipe 2 and the flow sensor 100 is completed.

When the flow sensor 100 needs to be detached from the connection pipe 2, the fixing member 102 moves upward to be separated from the fixing portion based on the operation of the user, and rotates the flow sensor 100 in the opposite direction, so that the fixing member 102 moves from the end of the guiding portion to the initial end of the guiding portion to enter the guiding portion, and the fixing member 102 is separated from the guiding portion under the operation of the user or based on the action of gravity, thereby realizing the separation of the connection pipe 2 from the flow sensor 100, so as to complete the detachment of the flow sensor 100 from the connection pipe 2.

The utility model provides a lung function detector, comprising a lung function detector body, a mechanical arm, a flow sensor 100 and a connecting component for the flow sensor 100, wherein the connecting component is used for connecting the flow sensor 100;

the detector main body is connected with the mechanical arm; the mechanical arm is connected with the flow sensor 100 through the connecting component;

the connection assembly comprises: a fixed pipe 1 and a connecting pipe 2;

the fixed pipe 1 is sleeved outside the connecting pipe 2, and the fixed pipe 1 is communicated with the connecting pipe 2;

the fixed pipe 1 comprises a first limiting part 11, the first limiting part 11 is positioned at the lower end of the fixed pipe 1, and the upper end of the connecting pipe 2 is limited in the fixed pipe 1 through the first limiting part 11;

the upper end of the fixed pipe 1 is connected with a mechanical arm of a lung function detector, and the lower end of the connecting pipe 2 is detachably connected with a flow sensor 100 of the lung function detector. The connection manner is described in the foregoing embodiments, and is not described herein.

The above-described embodiments are only for illustrating the technical spirit and features of the present utility model, and it is intended to enable those skilled in the art to understand the content of the present utility model and to implement it accordingly, and the scope of the present utility model as defined by the present embodiments should not be limited only by the present embodiments, i.e. equivalent changes or modifications made in accordance with the spirit of the present utility model will still fall within the scope of the present utility model.

Claims

1. A connection assembly for a flow sensor, comprising: a fixed pipe (1) and a connecting pipe (2);

the fixed pipe (1) is sleeved outside the connecting pipe (2), and the fixed pipe (1) is communicated with the connecting pipe (2);

the fixed pipe (1) comprises a first limiting part (11), the first limiting part (11) is positioned at the lower end of the fixed pipe (1), and the upper end of the connecting pipe (2) is limited in the fixed pipe (1) through the first limiting part (11);

the upper end of the fixed pipe (1) is connected with a mechanical arm of the lung function detector, and the lower end of the connecting pipe (2) is detachably connected with the flow sensor (100).

2. A connection assembly for a flow sensor according to claim 1, characterized in that the connection tube (2) comprises a second limit part (21); the second limiting part (21) is positioned at the upper end of the connecting pipe (2); the bottom of the second limiting part (21) is attached to the top of the first limiting part (11).

3. A connection assembly for a flow sensor according to claim 2, characterized in that the first limit part (11) has an inner diameter greater than or equal to the outer diameter of the connection tube (2) so that the connection tube (2) is rotatably accommodated in the fixed tube (1).

4. A connection assembly for a flow sensor according to claim 2, characterized in that at least one elastic element (3) is arranged between the upper end of the fixed tube (1) and the second limit part (21), the original length of the elastic element (3) being larger than the maximum distance between the upper end of the fixed tube (1) and the second limit part (21).

5. A connection assembly for a flow sensor according to claim 4, characterized in that the upper end of the fixed tube (1) is bent inwards to form a third limit part (4), one end of the elastic component (3) is connected with the bottom of the third limit part (4), and the other end of the elastic component (3) is connected with the top of the second limit part (21).

6. A connection assembly for a flow sensor according to claim 1, characterized in that the lower end of the connection tube (2) is screwed with the flow sensor (100).

7. A connection assembly for a flow sensor according to claim 1, characterized in that a number of connection pieces (5) are arranged at intervals on the outer wall of the connection pipe (2), the connection pieces (5) being snap-fitted with the flow sensor (100).

8. A connection assembly for a flow sensor according to claim 1, characterized in that the lower end of the connection tube (2) is provided with a number of limit grooves (6) at intervals, which limit grooves (6) are located on the inner wall of the connection tube (2); the limiting groove (6) is in clamping fit with a fixing piece (102) of the flow sensor (100).

9. The connection assembly for a flow sensor according to claim 1, wherein a fixing plate (7) is arranged at the upper end of the fixing tube (1), a plurality of mounting holes are formed in the fixing plate (7), and the mounting holes are matched with the mechanical arm.

10. A pulmonary function detector, comprising: a lung function detector body, a robotic arm, a flow sensor (100) and a connection assembly for a flow sensor according to any of claims 1-9;

the detector main body is connected with the mechanical arm; the mechanical arm is connected with the flow sensor (100) through the connecting component;

the connection assembly comprises: a fixed pipe (1) and a connecting pipe (2);