A breath sampling device for lung diagnosis

Abstract

The present invention relates to the technical field of sampling devices, and discloses a respiratory sampling device for lung diagnosis, including a box body and four legs fixedly installed at four corner positions of the lower surface of the box body, and two groups of mounting blocks are fixedly installed in pairs on the inner walls of the box body on opposite sides. The present invention moves the partition inside the sampling tube up until it fits with the top wall of the sampling tube. At this time, the gas inside the sampling tube is completely discharged, and the floating plate plug is pushed into the inside of the trachea joint by the partition, completely isolating the sampling tube from the outside to prevent dust from falling into the inside. At the same time, the protrusion leaves the square drive rod as the push rod moves downward, causing the square drive rod to leave the opening. At this time, the residual air inside the fixed tube will flow out. Through this device, the gas blown out by the patient inside the sampling tube can be completely discharged, ensuring the accuracy of subsequent patient detection.

Description

Technical Field

[0001] The present invention relates to the technical field of sampling devices, and in particular to a breath sampling device for lung diagnosis. Background Art

[0002] A large number of studies have shown that there are some volatile organic compounds in the exhaled breath of patients with lung cancer. These compounds are derived from the oxidation of unsaturated fatty acids during the development of cancer, and can therefore be used as biomarkers to identify cancer. Doctors often use gas detection and analysis instruments to detect the breath exhaled by patients, so as to diagnose lung cancer. When using the gas detection and analysis instrument, the patient is required to blow into the input end of the gas detection and analysis instrument to allow the gas to enter the air inlet chamber of the gas detection and analysis instrument.

[0003] An existing breath sampling device for lung cancer diagnosis (Announcement No.: CN110179467B) has at least the following disadvantages:

[0004] When the above patent is in use, a micro air pump is used to inflate the interior of the test box to increase the air pressure inside the test box. The gas in the airbag is discharged under the action of the external air pressure, preventing the residual gas in the airbag from causing errors in the next detection. Since there are extended sensors and connecting pipes in the airbag, the airbag cannot be completely squeezed, resulting in residual gas in the airbag. The residual gas affects the accuracy of subsequent patient tests. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a breath sampling device for lung diagnosis.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A respiratory sampling device for lung diagnosis comprises a box body and four legs fixedly mounted at four corners of the lower surface of the box body, two groups of mounting blocks are fixedly mounted on the inner walls of the box body on opposite sides, a sampling cylinder is fixedly mounted between two mounting blocks in one group, and a storage cylinder is fixedly mounted between two mounting blocks in the other group, a first connecting tube is fixedly connected to the top of the storage cylinder, the other end of the first connecting tube is fixedly connected to the bottom end of the sampling cylinder, the storage cylinder is connected to the inside of the sampling cylinder through the first connecting tube, and partitions are slidably mounted on the inner walls of the storage cylinder and the sampling cylinder. An air pipe joint is fixedly installed on the top of the sampling barrel, and the air pipe joint is connected with the interior of the sampling barrel. A fixed block is fixedly installed on the inner wall of the air pipe joint. A plurality of air vents are penetrated through the outer surface of the fixed block. A first sliding column is slidably inserted into the outer surface of the middle position of the fixed block. A floating plate plug is fixedly installed on the bottom end of the first sliding column through the lower surface of the fixed block. A chamfer is provided on the circumferential outer surface of the floating plate plug. An bevel matching the chamfer is provided on the inner wall of the air pipe joint near the bottom end. Through the matching setting of the chamfer and the bevel, the floating plate plug can better seal the air pipe joint.

[0008] As a further solution of the present invention, the top end of the air pipe joint passes through the outer surface of the box body and is sleeved with a hose, and the other end of the hose is fixedly connected to a trumpet mouthpiece.

[0009] As a further solution of the present invention, a conduit is fixedly installed at the bottom end of the storage cylinder, and the conduit is communicated with the interior of the storage cylinder. A third sliding column is fixedly installed on the lower surface of the partition located in the storage cylinder, and a first spring is sleeved on the outer surface of the third sliding column near the top end, and the first spring is arranged inside the conduit.

[0010] As a further solution of the present invention, a compression cylinder is fixedly installed on the bottom wall of the box body, a piston plate is slidably installed on the inner wall of the compression cylinder, a push rod is fixedly installed on the upper surface of the piston plate, the top end of the push rod passes through the compression cylinder and a pressing plate is fixedly installed on the outer surface of the box body, a second connecting tube is fixedly installed on the bottom end of the compression cylinder, the other end of the second connecting tube is fixedly installed on the bottom of the conduit, and the conduit is connected to the compression cylinder through the second connecting tube.

[0011] As a further solution of the present invention, a fixed cylinder is fixedly installed on the upper surface of the sampling cylinder, a sealing block is slidably installed on the inner wall of the fixed cylinder, a plurality of gas detection heads are fixedly installed on the upper surface of the sealing block, a limiting sleeve is fixedly installed on the upper surface of the sampling cylinder, a square rod is slidably installed on the inner wall of the limiting sleeve, an opening matching the shape of the square rod is penetrated through the circumferential outer surface of the fixed cylinder, and one end of the square rod is slidably installed on the inner wall of the opening.

[0012] As a further solution of the present invention, a protrusion is fixedly installed on the outer surface of the push rod near the square rod, and the outer surfaces of the protrusion near both ends are provided with transition angles. The other end of the square rod is provided with an arc surface, and the arc surface is against the outer surface of the protrusion. A first stopper is fixedly installed on the outer surface of the square rod near the protrusion, and a second spring is sleeved on the outer surface of the square rod, and the second spring is arranged between the first stopper and the limit sleeve.

[0013] As a further solution of the present invention, a second sliding column is fixedly installed on the upper surface of the middle position of the sealing block, a bracket is fixedly installed on the upper surface of the mounting block close to the fixed tube, a tilting rod is rotatably installed between the inner walls of the bracket close to the top end, a first guide groove is penetrated through one end of the tilting rod close to the fixed tube, the top end of the second sliding column penetrates the upper surface of the fixed tube and is slidably installed therewith, a first guide column is fixedly installed between the inner walls of the top end of the second sliding column, and the first guide column is slidably installed with the inner wall of the first guide groove.

[0014] As a further solution of the present invention, a square driving rod is slidably inserted into the upper surface of the mounting block, and the square driving rod is arranged between the bracket and the fixed cylinder, and the inner wall of the top end of the square driving rod is fixedly installed with a second guide column, and the outer surface of the tilting rod near the middle position is penetrated by a second guide groove, and the second guide column is slidably installed with the inner wall of the second guide groove, and the bottom wall of the box body is fixedly installed with a limiting sliding column, and the outer surface of the limiting sliding column is slidably installed with a connecting rod, the bottom end of the square driving rod penetrates the lower surface of the mounting block and is fixedly installed with one end of the connecting rod, the bottom end of the third sliding column penetrates the lower surface of the guide tube and abuts against the upper surface of the other end of the connecting rod, and the outer surface of the square driving rod near the bottom end is fixedly installed with a second stopper, and the outer surface of the square driving rod is sleeved with a tension spring, the top end of the tension spring is fixedly installed with the lower surface of the mounting block, and the bottom end of the tension spring is fixedly installed with the upper surface of the second stopper.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The partition inside the sampling tube moves up until it fits with the top wall of the sampling tube. At this time, the gas inside the sampling tube is completely discharged, and the floating plate plug is pushed into the inside of the trachea joint by the partition, completely isolating the sampling tube from the outside to prevent dust from falling into the inside. At the same time, the convex block moves away from the square driving rod as the push rod moves down, so that the square driving rod leaves the opening. At this time, the residual air inside the fixed tube will flow out. Through this device, the gas blown out by the patient inside the sampling tube can be completely discharged, ensuring the accuracy of subsequent patient detection;

[0017] 2. As the patient continues to blow gas, the partition will move downward. At this time, the partition will press the pure water inside the sampling tube, and the pure water enters the interior of the storage tube through the first connecting tube, and then presses the partition inside the storage tube to move downward. When the partition continues to move downward to a certain height, it will drive the third sliding column to move downward, and the bottom end of the third sliding column will abut against the upper surface of the connecting rod, thereby driving the connecting rod to move downward, so that the connecting rod drives the square driving rod to move downward, and the square driving rod drives the tilting rod to move downward through the second guide column and the second guide groove, and the tilting rod drives the second sliding column to move downward through the first guide groove and the first guide column, and the second sliding column drives the sealing block to leave the fixed tube. At this time, the gas detection head will enter the interior of the sampling tube, and detect and analyze the gas blown out by the patient through the gas detection head. The detected data is transmitted to the database through the wireless module. The doctor analyzes the patient's lung condition based on the data, and this device is convenient for detecting the gas blown out by the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a breath sampling device for lung diagnosis proposed by the present invention;

[0019] Figure 2 A schematic diagram of the internal structure of a breath sampling device for lung diagnosis proposed by the present invention;

[0020] Figure 3 A schematic diagram of a trumpet mouthpiece of a breath sampling device for lung diagnosis proposed by the present invention;

[0021] Figure 4 A schematic diagram of a baffle of a breath sampling device for lung diagnosis proposed by the present invention;

[0022] Figure 5 A schematic diagram of a compression cylinder of a breath sampling device for lung diagnosis proposed by the present invention;

[0023] Figure 6 A schematic diagram of a square rod of a breath sampling device for lung diagnosis proposed by the present invention;

[0024] Figure 7 A schematic diagram of a fixed cylinder of a breath sampling device for lung diagnosis proposed by the present invention;

[0025] Figure 8 A schematic diagram of a tracheal joint of a respiratory sampling device for lung diagnosis proposed by the present invention;

[0026] Fig. 9 Schematic diagram of a square driving rod of a breath sampling device for lung diagnosis proposed by the present invention.

[0027] In the figure: 1, box body; 2, trumpet mouthpiece; 3, sampling tube; 4, storage tube; 5, compression tube; 6, push rod; 7, pressing plate; 8, partition; 9, first connecting pipe; 10, air pipe joint; 11, first slide column; 12, floating plate plug; 13, fixing block; 14, fixing tube; 15, second slide column; 16, sealing block; 17, gas detection head; 18, bracket; 19, tilting rod; 20, first guide groove; 21, first guide column; 22, second guide groove; 23, square driving rod; 24, second guide column; 25, limiting slide column; 26, connecting rod; 27, third slide column; 28, first spring; 29, second connecting pipe; 30, piston plate; 31, limiting sleeve; 32, square rod; 33, first stopper; 34, second spring; 35, bump; 36, tension spring. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Reference Figure 1-Figure 9A respiratory sampling device for lung diagnosis comprises a box body 1 and four legs fixedly mounted at four corners of the lower surface of the box body 1. Two groups of mounting blocks are fixedly mounted on the inner walls of the box body 1 on opposite sides, two groups of mounting blocks are fixedly mounted, a sampling tube 3 is fixedly mounted between two mounting blocks in one group, a storage tube 4 is fixedly mounted between two mounting blocks in the other group, a first connecting tube 9 is fixedly connected to the top of the storage tube 4, the other end of the first connecting tube 9 is fixedly connected to the bottom end of the sampling tube 3, the storage tube 4 is connected to the inside of the sampling tube 3 through the first connecting tube 9, a partition 8 is slidably mounted on the inner walls of the storage tube 4 and the sampling tube 3, and a sampling tube 3 is fixedly mounted on the top of the sampling tube 3. An air pipe joint 10 is provided, and the air pipe joint 10 is connected with the interior of the sampling tube 3. A fixing block 13 is fixedly installed on the inner wall of the air pipe joint 10, and a plurality of air vents are penetrated through the outer surface of the fixing block 13. A first sliding column 11 is slidably inserted into the outer surface of the middle position of the fixing block 13, and a floating plate plug 12 is fixedly installed on the bottom end of the first sliding column 11 through the lower surface of the fixing block 13, and a chamfer is provided on the circumferential outer surface of the floating plate plug 12, and an oblique angle matching the chamfer is provided on the inner wall of the air pipe joint 10 near the bottom end, and a hose is provided on the top end of the air pipe joint 10 through the outer surface of the box body 1, and a trumpet mouthpiece 2 is fixedly connected to the other end of the hose.

[0032] As the partition 8 inside the storage tube 4 continues to reset and move upward, the partition 8 inside the sampling tube 3 will also move upward until it fits with the top wall of the sampling tube 3. At this time, the gas inside the sampling tube 3 is completely discharged, and the floating plate plug 12 is pushed into the interior of the trachea joint 10 by the partition 8, completely isolating the sampling tube 3 from the outside to prevent dust from falling into the interior. At the same time, the protrusion 35 leaves the square drive rod 23 as the push rod 6 moves downward, causing the square drive rod 23 to leave the opening. At this time, the residual air inside the fixed tube 14 will flow out. Through this device, the gas blown out by the patient inside the sampling tube 3 can be completely discharged, ensuring the accuracy of subsequent patient testing.

[0033] In this embodiment, a conduit is fixedly installed at the bottom end of the storage cylinder 4, and the conduit is connected to the interior of the storage cylinder 4. A third slide column 27 is fixedly installed on the lower surface of the partition 8 located in the storage cylinder 4. The outer surface of the third slide column 27 near the top is sleeved with a first spring 28, and the first spring 28 is arranged inside the conduit. A compression cylinder 5 is fixedly installed on the bottom wall of the box body 1, and a piston plate 30 is slidably installed on the inner wall of the compression cylinder 5. A push rod 6 is fixedly installed on the upper surface of the piston plate 30. The top end of the push rod 6 passes through the compression cylinder 5 and a pressing plate 7 is fixedly installed on the outer surface of the box body 1. A second connecting pipe 29 is fixedly installed on the bottom end of the compression cylinder 5. The other end of the second connecting pipe 29 is fixedly installed on the bottom of the conduit, and the conduit is connected to the compression cylinder 5 through the second connecting pipe 29.

[0034] When the test is completed, the medical staff unplugs the disposable hose and then manually presses the pressing plate 7 to press out the air inside the compression cylinder 5 through the push rod 6 and the piston plate 30. The air returns to the interior of the storage cylinder 4 through the second connecting tube 29. When the third slide column 27 leaves the connecting rod 26, the square drive rod 23 is driven to move up and reset through the tension spring 36, so that the square drive rod 23 drives the sealing block 16 through the second slide column 15 to enter the interior of the fixed cylinder 14.

[0035] In this embodiment, a fixed cylinder 14 is fixedly installed on the upper surface of the sampling cylinder 3, and a sealing block 16 is slidably installed on the inner wall of the fixed cylinder 14. A plurality of gas detection heads 17 are fixedly installed on the upper surface of the sealing block 16. A limiting sleeve 31 is fixedly installed on the upper surface of the sampling cylinder 3, and a square rod 32 is slidably installed on the inner wall of the limiting sleeve 31. An opening matching the shape of the square rod 32 is penetrated through the circumferential outer surface of the fixed cylinder 14, and one end of the square rod 32 is slidably installed on the inner wall of the opening. A protrusion 35 is fixedly installed on the outer surface of the push rod 6 near the square rod 32, and an outer surface of the protrusion 35 near both ends is provided with an excessive bevel, and the other end of the square rod 32 is provided with an arc surface, which abuts against the outer surface of the protrusion 35, and a first stopper 33 is fixedly installed on the outer surface of the square rod 32 near the protrusion 35, and a second spring 34 is sleeved on the outer surface of the square rod 32, and the second spring 34 is arranged between the first stopper 33 and the limiting sleeve 31.

[0036] The gas compressed inside the storage cylinder 4 due to the downward movement of the partition 8 will enter the interior of the compression cylinder 5 through the second connecting pipe 29. As the gas enters, the piston plate 30 will be driven to move upward, and the piston plate 30 will drive the push rod 6 to move upward. The push rod 6 will drive the protrusion 35 to move upward, so that the protrusion 35 will abut against one end of the square rod 32, thereby driving the square rod 32 to move close to the fixed cylinder 14. Before the sealing block 16 moves downward, the square rod 32 is inserted into the opening of the fixed cylinder 14 to seal the fixed cylinder 14 to prevent gas leakage inside the sampling cylinder 3.

[0037] In this embodiment, a second slide column 15 is fixedly installed on the upper surface of the middle position of the sealing block 16, a bracket 18 is fixedly installed on the upper surface of the mounting block close to the fixed cylinder 14, a tilting rod 19 is rotatably installed between the inner walls close to the top of the bracket 18, and a first guide groove 20 is penetrated through one end of the tilting rod 19 close to the fixed cylinder 14, the top of the second slide column 15 penetrates the upper surface of the fixed cylinder 14 and is slidably installed therewith, a first guide column 21 is fixedly installed between the inner walls of the top of the second slide column 15, the first guide column 21 is slidably installed with the inner wall of the first guide groove 20, a square driving rod 23 is slidably inserted on the upper surface of the mounting block, the square driving rod 23 is arranged between the bracket 18 and the fixed cylinder 14, and the inner wall of the top of the square driving rod 23 is fixedly installed with a first guide column 21. The second guide column 24 and the outer surface of the tilting rod 19 near the middle position are penetrated by a second guide groove 22, the second guide column 24 is slidably installed with the inner wall of the second guide groove 22, the bottom wall of the box body 1 is fixedly installed with a limiting sliding column 25, and the outer surface of the limiting sliding column 25 is slidably installed with a connecting rod 26, the bottom end of the square driving rod 23 penetrates the lower surface of the mounting block and is fixedly installed with one end of the connecting rod 26, the bottom end of the third sliding column 27 penetrates the lower surface of the guide tube and abuts against the upper surface of the other end of the connecting rod 26, the outer surface of the square driving rod 23 near the bottom end is fixedly installed with a second stopper, and the outer surface of the square driving rod 23 is sleeved with a tension spring 36, the top end of the tension spring 36 is fixedly installed with the lower surface of the mounting block, and the bottom end of the tension spring 36 is fixedly installed with the upper surface of the second stopper.

[0038] The blown gas will enter the interior of the sampling tube 3. As the patient continues to blow in the gas, the partition 8 will be driven to move downward. At this time, the partition 8 will press the pure water inside the sampling tube 3. The pure water enters the interior of the storage tube 4 through the first connecting tube 9, and then presses the partition 8 inside the storage tube 4 to move downward. When the partition 8 continues to move downward to a certain height, it will drive the third sliding column 27 to move downward. The bottom end of the third sliding column 27 abuts against the upper surface of the connecting rod 26, thereby driving the connecting rod 26 to move downward, so that the connecting rod 26 drives the square driving rod 23 to move downward, and the square driving rod 23 is driven downward. The movable rod 23 drives the tilting rod 19 to move downward through the second guide column 24 and the second guide groove 22, and the tilting rod 19 drives the second sliding column 15 to move downward through the first guide groove 20 and the first guide column 21, and the second sliding column 15 drives the sealing block 16 to leave the fixed tube 14. At this time, the gas detection head 17 will enter the interior of the sampling tube 3, and the gas blown out by the patient will be detected and analyzed through the gas detection head 17. The detected data is transmitted to the database through the wireless module. The doctor analyzes the patient's lung condition based on the data. The device is convenient for detecting the gas blown out by the patient.

[0039] It should be noted that, before the present invention is used, the space between the two partitions 8 is filled with pure water. At the beginning, the pure water is stored in the sampling tube 3. When in use, the medical staff will sleeve the disposable hose on the top of the tracheal joint 10, and then sleeve the other end of the hose on the air outlet end of the trumpet mouthpiece 2 to facilitate subsequent blowing. The trumpet mouthpiece 2 is also disposable to prevent cross infection between patients. The patient blows air into the sampling tube 3 through the trumpet mouthpiece 2 according to the instructions of the medical staff, and the air pressure inside the tracheal joint 10 is raised by the patient's blowing. The floating plate plug 12 is pushed open, and at the same time, the blown gas will enter the interior of the sampling tube 3. As the patient continues to blow gas, the partition 8 will be driven to move downward. At this time, the partition 8 will press the pure water inside the sampling tube 3, and the pure water will enter the interior of the storage tube 4 through the first connecting pipe 9, and then press the partition 8 inside the storage tube 4 to move downward. When the partition 8 continues to move downward to a certain height, it will drive the third sliding column 27 to move downward. The bottom end of the third sliding column 27 is against the upper surface of the connecting rod 26, thereby driving the connecting rod 26 to move downward, so that the connecting rod 26 drives the square drive The moving rod 23 moves downward, and the square driving rod 23 drives the tilting rod 19 to move downward through the second guide column 24 and the second guide groove 22. The tilting rod 19 drives the second sliding column 15 to move downward through the first guide groove 20 and the first guide column 21. The second sliding column 15 drives the sealing block 16 to leave the fixed cylinder 14. At this time, the gas detection head 17 will enter the interior of the sampling cylinder 3, and the gas blown out by the patient will be detected and analyzed through the gas detection head 17. The detected data is transmitted to the database through the wireless module. The doctor analyzes the patient's lung condition based on the data. The device is convenient for detecting the patient's lung condition. At the same time, the gas compressed inside the storage cylinder 4 due to the downward movement of the partition plate 8 will enter the interior of the compression cylinder 5 through the second connecting pipe 29. As the gas enters, the piston plate 30 will be driven to move upward, so that the piston plate 30 drives the push rod 6 to move upward, and the push rod 6 drives the protrusion 35 to move upward, so that the protrusion 35 and one end of the square rod 32 are abutted, thereby driving the square rod 32 to move close to the fixed cylinder 14. Before the sealing block 16 moves downward, the square rod 32 is inserted into the opening of the fixed cylinder 14 to seal the fixed cylinder 14 to prevent gas leakage inside the sampling cylinder 3;When the test is completed, the medical staff unplugs the disposable hose and then manually presses the pressing plate 7 to press out the air inside the compression cylinder 5 through the push rod 6 and the piston plate 30. The air returns to the interior of the storage cylinder 4 through the second connecting pipe 29. When the third slide column 27 leaves the connecting rod 26, the square driving rod 23 is driven to move up and reset through the tension spring 36, so that the square driving rod 23 drives the sealing block 16 to enter the interior of the fixed cylinder 14 through the second slide column 15. At this time, the fixed cylinder 14 is not connected to the sampling cylinder 3. As the partition plate 8 inside the storage cylinder 4 continues to reset and move up, the sampling cylinder 3 The internal partition 8 will also move up until it fits with the top wall of the sampling tube 3. At this time, the gas inside the sampling tube 3 is completely discharged, and the floating plate plug 12 is pushed into the inside of the trachea joint 10 by the partition 8, completely isolating the sampling tube 3 from the outside to prevent dust from falling into the inside. At the same time, the protrusion 35 moves away from the square driving rod 23 as the push rod 6 moves downward, so that the square driving rod 23 leaves the opening. At this time, the residual air inside the fixed tube 14 will flow out. Through this device, the gas blown out by the patient inside the sampling tube 3 can be completely discharged, ensuring the accuracy of subsequent patient detection. ;

[0040] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A breath sampling device for lung diagnosis, comprising a box and four legs fixedly mounted at four corners of the lower surface of the box, characterized in that: Two groups of mounting blocks are fixedly installed on the inner walls of opposite sides of the box body in groups of two, a sampling cylinder is fixedly installed between the two mounting blocks in one group, and a storage cylinder is fixedly installed between the two mounting blocks in the other group, the top of the storage cylinder is fixedly connected with a first connecting tube, the other end of the first connecting tube is fixedly connected to the bottom end of the sampling cylinder, the storage cylinder is connected with the interior of the sampling cylinder through the first connecting tube, and the inner walls of the storage cylinder and the sampling cylinder are both slidably installed with a partition, an air pipe joint is fixedly installed on the top of the sampling cylinder, the air pipe joint is connected with the interior of the sampling cylinder, and a fixing block is fixedly installed on the inner wall of the air pipe joint, a plurality of ventilation holes are opened through the outer surface of the fixing block, and a first sliding The cam is provided with a plurality of gas detection heads, and the plurality of gas detection heads are provided with a plurality of gas detection heads, and the plurality of gas detection heads are provided with a plurality of gas detection heads. A square rod is slidably installed on the wall, and an opening matching the shape of the square rod is penetrated on the circumferential outer surface of the fixed cylinder, and one end of the square rod is slidably installed on the inner wall of the opening, and a second sliding column is fixedly installed on the upper surface of the middle position of the sealing block, and a bracket is fixedly installed on the upper surface of the mounting block close to the fixed cylinder, and a tilting rod is rotatably installed between the inner wall close to the top of the bracket, and a first guide groove is penetrated at one end of the tilting rod close to the fixed cylinder, and the top of the second sliding column penetrates the upper surface of the fixed cylinder and is slidably installed therewith, and a first guide column is fixedly installed between the inner wall of the top end of the second sliding column, and the first guide column is slidably installed with the inner wall of the first guide groove, and a square driving rod is slidably inserted on the upper surface of the mounting block, and the square driving rod is arranged between the bracket and the fixed cylinder. The locking lever is secured on a chute to the bottom of the slide block and is adapted to engage with the locking lever on the cam face, the locking lever being secured on a chute to the bottom of the slide block and being adapted to engage with the locking lever on the cam face.

2. A breath sampling device for lung diagnosis according to claim 1, characterized in that: The top end of the air pipe joint passes through the outer surface of the box body and is sleeved with a hose, and the other end of the hose is fixedly connected with a trumpet mouthpiece.

3. A breath sampling device for lung diagnosis according to claim 1, characterized in that: A compression cylinder is fixedly installed on the bottom wall of the box body, a piston plate is slidably installed on the inner wall of the compression cylinder, a push rod is fixedly installed on the upper surface of the piston plate, the top end of the push rod passes through the compression cylinder and a pressing plate is fixedly installed on the outer surface of the box body, a second connecting tube is fixedly installed on the bottom end of the compression cylinder, the other end of the second connecting tube is fixedly installed on the bottom of the conduit, and the conduit is connected to the compression cylinder through the second connecting tube.

4. A breath sampling device for lung diagnosis according to claim 3, characterized in that: A protrusion is fixedly installed on the outer surface of the push rod near the square rod, and the outer surfaces of the protrusion near both ends are provided with transition angles. The other end of the square rod is provided with an arc surface, and the arc surface is against the outer surface of the protrusion. A first stopper is fixedly installed on the outer surface of the square rod near the protrusion, and a second spring is sleeved on the outer surface of the square rod, and the second spring is arranged between the first stopper and the limiting sleeve.

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