Chip sensor for pneumoconiosis detection electronic nose

Abstract

The invention provides a chip sensor for a pneumoconiosis detection electronic nose, the chip sensor comprises an outer cylinder, an inner cylinder arranged in the outer cylinder, a sensor assembly, an air guide assembly and an opening binding assembly, the periphery of the outer cylinder is provided with a through opening, and the inner cylinder is rotatably arranged and blocks or opens the through opening; one end plate of the sensor assembly along the axial direction of the outer cylinder body is a switching section which at least partially protrudes out of the other ends of the outer cylinder body and the inner cylinder body; the air guide assembly is arranged on an outer barrel end plate where the switching section is located and provided with an air guide cavity communicating with an outer barrel cavity and the external environment, and the air guide assembly comprises an air guide piece arranged on the switching section and used for forming air flow flowing from the outer barrel to the air guide cavity; the opening binding assembly is arranged on the periphery of the outer barrel on the side, away from the air guide assembly, of the through opening and used for clamping an opening of the collecting bag. By adopting the scheme, the problems that in the prior art, a chip sensor is always exposed in an external environment and is easy to damage, and the detection precision and the service life are reduced can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of sensors, and in particular to a chip sensor for an electronic nose for detecting pneumoconiosis. Background Art

[0002] The electronic nose, also known as the artificial olfactory system, is an intelligent electronic "olfactory" instrument designed to simulate the biological olfactory system. It is mainly used to analyze, identify and detect volatile chemicals, complex odors and toxic gases. It is now also mainly used in the field of pneumoconiosis detection. It is difficult to use medical images to identify the early lesions of pneumoconiosis. Then, by building a bionic olfactory system, that is, an electronic nose, the composition of exhaled gas is analyzed to identify early pulmonary fibrosis lesions.

[0003] The basic structure of the electronic nose is mainly composed of three parts, namely the gas sensor array, the signal preprocessing unit and the pattern recognition unit. The corresponding gas sensor array is the chip sensor used in the electronic nose. When conducting pneumoconiosis detection, the gas exhaled by the person is collected and interacted with the chip sensor, which is sensed by the chip sensor. The chip sensor itself is a high-precision electronic device, but during use, the chip sensor itself does not have a protective effect. During use and storage, the chip sensor is exposed to the external environment and is prone to collision and friction with other objects, which will cause certain problems in the performance of the chip sensor, and then cause certain deviations in the sensing results. Summary of the invention

[0004] The present invention provides a chip sensor for an electronic nose for detecting pneumoconiosis, so as to solve the problem in the prior art that the chip sensor is always exposed to the external environment, is easily damaged and leads to reduced detection accuracy and service life.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a chip sensor for an electronic nose for pneumoconiosis detection, comprising: an outer cylinder and an inner cylinder arranged in the outer cylinder, the outer periphery of the outer cylinder having a through opening, the inner cylinder being rotatably arranged and limitedly matched with the inner wall of the cavity of the outer cylinder to block or open the through opening; a sensor component, which is inserted into the outer cylinder and the inner cylinder, one end of the sensor component along the axial direction of the outer cylinder is a wiring section that at least partially protrudes from one end plate of the outer cylinder and the inner cylinder, and the other end of the sensor component along the axial direction of the outer cylinder is A transition section that at least partially protrudes from the outer cylinder and the other end plate of the inner cylinder; an air guide assembly, which is arranged at one end of the outer cylinder in the axial direction, and the air guide assembly has an air guide cavity that is connected to the outer cylinder cavity and the external environment, and the portion of the transition section that protrudes from the outer cylinder is located in the air guide cavity, and the air guide assembly includes an air guide member, which is located in the air guide cavity and is arranged on the transition section, and the air guide member is used to form an air flow that flows from the outer cylinder to the air guide cavity; a clamping opening assembly, which is arranged on the outer periphery of the outer cylinder on the side of the opening facing away from the air guide assembly, so as to clamp the opening of the collection bag.

[0006] Furthermore, the inner cylinder includes a baffle for sealing the opening, the baffle is an arc-shaped plate whose shape matches the opening, the extending length of the baffle in the circumferential direction of the outer cylinder is greater than the extending length of the opening in the circumferential direction of the outer cylinder, the extending length of the baffle in the axial direction of the outer cylinder is not less than the extending length of the opening in the axial direction of the outer cylinder, there are multiple openings and baffles, and the multiple openings are symmetrically distributed around the axis of the outer cylinder at least along the circumference of the outer cylinder, and the multiple baffles block or open the multiple openings one by one.

[0007] Furthermore, any baffle is provided with connecting holes on both sides of the outer cylinder in the circumferential direction, and the area of ​​the outer cylinder between two adjacent through openings forms an outer cylinder section. Any outer cylinder section is provided with pluggable pins on both sides of the outer cylinder in the circumferential direction, and the pins can be pluggably inserted in the connecting holes to fix the baffle in a position facing the through opening or facing the outer cylinder section.

[0008] Furthermore, the inner cylinder includes an adapter sleeve, an adapter bearing, a baffle and a connecting plate. The adapter section has a first penetration section that passes through the end plate of the outer cylinder, and the connection section has a second penetration section that passes through the other end plate of the outer cylinder. The outer peripheries of the first penetration section and the second penetration section are both limitedly sleeved with an adapter sleeve. The baffle is an arc-shaped plate whose shape matches the shape of the through opening. A connecting plate is correspondingly connected to both ends of the baffle in the axial direction of the outer cylinder, and the end of the connecting plate in the radial direction of the outer cylinder away from the baffle is rotatably sleeved on the outer periphery of the adapter sleeve through an adapter bearing.

[0009] Furthermore, an air guide port is arranged on the end plate of the outer cylinder close to the air guide assembly. The air guide port is arranged opposite to the through opening in the radial direction of the outer cylinder. The air guide cavity is connected with the cavity of the outer cylinder through the air guide port. When the baffle blocks the through opening, the connecting plate blocks the air guide port.

[0010] Furthermore, the air guide assembly also includes an air guide tube, a fixed block and a protective net. There are multiple fixed blocks, which are distributed along the circumference of the air guide tube on the outer periphery of one end of the air guide tube facing the outer cylinder body. Any fixed block is connected to the end plate of the outer cylinder body through fasteners to buckle the air guide tube on the end plate of the outer cylinder body and form an air guide cavity. The end of the air guide tube facing away from the outer cylinder body is open and is provided with a protective net.

[0011] Furthermore, the closing assembly includes a clamping assembly, an inner ring and an outer ring fixedly mounted on the outer circumference of the inner ring, the inner ring and the outer ring are spaced apart to form a clamping cavity, and the clamping assembly has a clamping end movably disposed in the clamping cavity to clamp the opening of the collection bag extending into the clamping cavity between the clamping end and the inner ring.

[0012] Furthermore, there are multiple clamping assemblies, which are distributed at intervals along the circumference of the inner ring. The clamping assemblies include a threaded column and an arc-shaped clamping strip whose shape is adapted to the clamping cavity. The outer circumference of the outer ring has a threaded hole corresponding to the threaded column, and the arc-shaped clamping strip is located in the clamping cavity. For any clamping assembly, the end of the threaded column passes through the threaded hole and is rotatably set on the arc-shaped clamping strip. The threaded column is threadedly connected to the threaded hole to adjust the position of the arc-shaped clamping strip in the clamping cavity along the radial direction of the outer cylinder, and the arc-shaped clamping strip forms a clamping end at one end facing the inner ring.

[0013] Furthermore, the inner ring has arc-shaped clamping grooves corresponding to the plurality of arc-shaped clamping strips one by one, and the arc-shaped clamping strips and the arc-shaped clamping grooves are separably limited and matched.

[0014] Furthermore, the sensor assembly includes a circuit board, a chip and a gas sensor array. The two ends of the circuit board form a transfer section and a wiring section respectively. The part of the circuit board located in the inner cylinder is limitedly matched with the inner wall of the inner cylinder. The chip and the gas sensor array are both arranged on the circuit board located in the inner cylinder.

[0015] The technical solution provided by the present invention provides a chip sensor for electronic nose for pneumoconiosis detection, comprising: an outer cylinder and an inner cylinder arranged in the outer cylinder, the outer periphery of the outer cylinder having a through opening, the inner cylinder being rotatably arranged and limitedly matched with the inner wall of the cavity of the outer cylinder to block or open the through opening; a sensor component, which is inserted into the outer cylinder and the inner cylinder, one end of the sensor component along the axial direction of the outer cylinder is a wiring section that at least partially protrudes from one end plate of the outer cylinder and the inner cylinder, and the other end of the sensor component along the axial direction of the outer cylinder is A transition section that at least partially protrudes from the outer cylinder and the other end plate of the inner cylinder; an air guide assembly, which is arranged at one end of the outer cylinder in the axial direction, and the air guide assembly has an air guide cavity that is connected to the outer cylinder cavity and the external environment, and the portion of the transition section that protrudes from the outer cylinder is located in the air guide cavity, and the air guide assembly includes an air guide member, which is located in the air guide cavity and is arranged on the transition section, and the air guide member is used to form an air flow that flows from the outer cylinder to the air guide cavity; a clamping opening assembly, which is arranged on the outer periphery of the outer cylinder on the side of the opening facing away from the air guide assembly, so as to clamp the opening of the collection bag.

[0016] When the chip sensor for electronic nose for pneumoconiosis detection provided by the present scheme needs to detect gas, the gas to be detected is first stored in a collection bag, and then one end of the chip sensor for electronic nose for pneumoconiosis detection installed with the air guide component is inserted into the collection bag, and the opening of the collection bag is clamped on the outer periphery of the outer cylinder body on the side of the cylinder body away from the air guide component through the tie-mouth component, the inner cylinder body is rotated to the position of opening the through-port and the air guide piece is started, and the gas to be detected in the collection bag enters the outer cylinder body from the through-port, and the gas to be detected flows through the sensor component and enters the air guide cavity under the guiding action of the air guide piece and can finally be discharged from the air guide cavity. In this way, the chip sensor for electronic nose for pneumoconiosis detection and the collection bag can be easily disassembled and assembled through the tie-mouth component, and the collection bag can be easily replaced and different gases to be detected can be detected; the air guide piece can easily improve the fluidity of the fluid in the collection bag and the outer cylinder body, so that the gas to be detected in the collection bag can enter the outer cylinder body for detection faster, which is conducive to improving the detection efficiency of the gas to be detected in the collection bag. On the other hand, when the chip sensor for electronic nose for pneumoconiosis detection provided by the present invention does not need to detect gas, the inner cylinder body rotates to the position of sealing the opening, so as to jointly play the role of dust and foreign matter in the isolation protection cavity inside with the outer cylinder body, thereby realizing dust and collision protection for the sensor component located in the outer cylinder body, thereby avoiding the situation in which the sensor component of the chip sensor for electronic nose for pneumoconiosis detection in the prior art is also exposed to the external environment when not in use, which is easy to be damaged and causes the sensor component to fail or reduce the accuracy, which is beneficial to ensuring the gas detection accuracy and service life of the sensor component and the chip sensor for electronic nose for pneumoconiosis detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A cross-sectional view of a chip sensor for an electronic nose for pneumoconiosis detection provided by an embodiment of the present invention is shown;

[0019] Figure 2 Shows Figure 1 Side view of the chip sensor used in the electronic nose for pneumoconiosis detection;

[0020] Figure 3 Shows Figure 1 A cross-sectional view of a chip sensor for an electronic nose for pneumoconiosis detection from another perspective;

[0021] Figure 4 Shows Figure 1 A cross-sectional view of a chip sensor for an electronic nose for pneumoconiosis detection at a constriction assembly;

[0022] Figure 5 Shows Figure 4 A magnified view of position A in the middle;

[0023] Figure 6 Shows Figure 1 Bottom view of the chip sensor used in the electronic nose for pneumoconiosis detection;

[0024] Figure 7 Shows Figure 1 Bottom view of the chip sensor for the electronic nose for pneumoconiosis detection without the air guide component.

[0025] The above drawings include the following reference numerals:

[0026] 10. Outer cylinder; 101. Passage port; 102. Air guide;

[0027] 20. Inner cylinder; 21. Baffle; 211. Connecting hole; 22. Adapter sleeve; 23. Adapter bearing; 24. Connecting plate; 25. Latch;

[0028] 30. sensor assembly; 31. circuit board; 311. adapter section; 3111. first threading section; 3112. placement slot; 3113. slot; 312. wiring section; 3121. second threading section; 32. chip; 33. gas sensor array; 34. wire connector;

[0029] 40. air guide assembly; 401. air guide cavity; 41. air guide tube; 42. fixing block; 43. protective net; 44. air guide piece; 45. battery holder; 46. plug-in block;

[0030] 50, the cuff assembly; 501, the clamping cavity; 51, the clamping assembly; 511, the threaded column; 512, the arc-shaped clamping strip; 52, the inner ring; 521, the arc-shaped clamping groove; 53, the outer ring; 531, the threaded hole; 54, the connecting block;

[0031] 60. Fasteners. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figures 1 to 7 As shown, an embodiment of the present invention provides a chip sensor for an electronic nose for pneumoconiosis detection, comprising: an outer cylinder 10 and an inner cylinder 20 arranged in the outer cylinder 10, the outer periphery of the outer cylinder 10 having a through opening 101, the inner cylinder 20 being rotatably arranged and limitedly matched with the inner wall of the cavity of the outer cylinder 10 to block or open the through opening 101; a sensor assembly 30, which is penetrated in the outer cylinder 10 and the inner cylinder 20, one end of the sensor assembly 30 along the axial direction of the outer cylinder 10 is a wiring section 312 that at least partially protrudes from one end plate of the outer cylinder 10 and the inner cylinder 20, and the other end of the sensor assembly 30 along the axial direction of the outer cylinder 10 is a wiring section 312 that at least partially protrudes from the outer cylinder 10 and one end plate of the inner cylinder 20. 10 and a transition section 311 of the other end plate of the inner cylinder 20; an air guide component 40, which is arranged at one end of the outer cylinder 10 in the axial direction, and the air guide component 40 has an air guide cavity 401 connected to the cavity of the outer cylinder 10 and the external environment, and the portion of the transition section 311 protruding from the outer cylinder 10 is located in the air guide cavity 401, and the air guide component 40 includes an air guide member 44, which is located in the air guide cavity 401 and is arranged on the transition section 311, and the air guide member 44 is used to form an air flow from the outer cylinder 10 to the air guide cavity 401; a clamping mouth component 50, which is arranged on the outer periphery of the outer cylinder 10 on the side of the through opening 101 away from the air guide component 40, so as to clamp the opening of the collection bag.

[0034] When the chip sensor for electronic nose for detecting pneumoconiosis provided in the present embodiment needs to detect gas, the gas to be detected is first stored in a collection bag, and then one end of the chip sensor for electronic nose for detecting pneumoconiosis equipped with the air guide component 40 is inserted into the collection bag, and the opening of the collection bag is clamped on the outer periphery of the outer cylinder 10 on the side of the cylinder away from the air guide component 40 through the tie-mouth component 50, the inner cylinder 20 is rotated to the position of opening the through port 101 and the air guide member 44 is started, the gas to be detected in the collection bag enters the outer cylinder 10 from the through port 101, the gas to be detected flows through the sensor component 30 and enters the air guide cavity 401 under the guiding action of the air guide member 44 and can finally be discharged from the air guide cavity 401. In this way, the assembly and disassembly of the chip sensor for electronic nose for pneumoconiosis detection and the collection bag are facilitated by the tie assembly 50, and the replacement of the collection bag is facilitated to detect different gases to be detected; the air guide 44 is convenient to improve the fluidity of the fluid in the collection bag and the outer cylinder 10, so that the gas to be detected in the collection bag can enter the outer cylinder 10 for detection more quickly, which is conducive to improving the detection efficiency of the gas to be detected in the collection bag. On the other hand, when the chip sensor for electronic nose for pneumoconiosis detection provided by this embodiment does not need to detect the gas, the inner cylinder 20 rotates to the position of blocking the opening 101, so as to play a role of dust and foreign matter to prevent the entry of the internal isolation protection cavity together with the outer cylinder 10, so as to realize dust and collision protection for the sensor assembly 30 located in the outer cylinder 10, so as to avoid the situation that the sensor assembly 30 of the chip sensor for electronic nose for pneumoconiosis detection in the prior art is also exposed to the external environment when not in use, and is easily damaged, resulting in failure or reduced accuracy of the sensor assembly 30, which is conducive to ensuring the gas detection accuracy and service life of the sensor assembly 30 and the chip sensor for electronic nose for pneumoconiosis detection.

[0035] like Figure 1 As shown, the sensor assembly 30 includes a circuit board 31, a chip 32 and a gas sensor array 33. The two ends of the circuit board 31 respectively form a transition section 311 and a wiring section 312. The part of the circuit board 31 located in the inner cylinder 20 is limitedly matched with the inner wall of the inner cylinder 20. The chip 32 and the gas sensor array 33 are both arranged on the circuit board 31 located in the inner cylinder 20.

[0036] Preferably, the air guide 44 is a fan. If the speed is too high, the air flow speed will be accelerated, which is not conducive to the sensor assembly 30 sensing the components in the gas. In this embodiment, the fan speed is not easy to be too fast (slow), and it only has the effect of slightly accelerating the air flow speed. The gas sensor array 33 is composed of a plurality of gas sensors.

[0037] In this embodiment, the circuit board 31 is designed as an integral unit, and the widths of the adapter section 311 and the wiring section 312 at its ends are both smaller than the width of the circuit board 31 located in the outer cylinder 10. The sensor assembly 30 also includes a wire connector 34, which is arranged at the end of the wiring section 312. The wire connector 34 is used to connect to the electronic nose through the corresponding wire, and then the data sensed by the chip sensor of the pneumoconiosis detection electronic nose is transmitted to the electronic nose through the cable.

[0038] like Figures 1 to 3 As shown, the inner cylinder 20 includes a baffle 21 for blocking the through-port 101, the baffle 21 is an arc-shaped plate whose shape matches the through-port 101, the extending length of the baffle 21 in the circumferential direction of the outer cylinder 10 is greater than the extending length of the through-port 101 in the circumferential direction of the outer cylinder 10, the extending length of the baffle 21 in the axial direction of the outer cylinder 10 is not less than the extending length of the through-port 101 in the axial direction of the outer cylinder 10, the through-port 101 and the baffle 21 are both multiple, the multiple through-ports 101 are symmetrically distributed around the axis center of the outer cylinder 10 at least along the circumference of the outer cylinder 10, and the multiple baffles 21 block or open the multiple through-ports 101 one by one. By setting up in this way, the reliability of the blocking and opening of the opening 101 is ensured by limiting the shape and size of the baffle 21. By providing a plurality of openings 101, the connection area between the inside of the outer cylinder 10 and its external environment (i.e., the inside of the collection bag) is increased when detecting gas, thereby increasing the gas flow rate and flow efficiency, thereby improving the detection efficiency.

[0039] like Figure 3 As shown, any baffle 21 is provided with connecting holes 211 on both sides of the outer cylinder body 10 in the circumferential direction, and the area of ​​the outer cylinder body 10 between two adjacent through openings 101 forms an outer cylinder segment. Any outer cylinder segment is provided with pluggable pins 25 on both sides of the outer cylinder body 10 in the circumferential direction, and the pins 25 are pluggable and inserted into the connecting holes 211 to fix the baffle 21 at a position facing the through opening 101 or facing the outer cylinder segment.

[0040] In this embodiment, there are two through openings 101, and the inner cylinder 20 correspondingly includes two baffles 21. The extension length of the through opening 101 in the circumferential direction of the outer cylinder 10 is the same as the extension length of the outer cylinder section in the circumferential direction of the outer cylinder 10. The extension length of the through opening 101 in the axial direction of the outer cylinder 10 passes through the outer cylinder 10. The baffles 21 extend at both ends of the axial direction of the outer cylinder 10 to the side where the two end plates of the outer cylinder 10 are close to each other. The extension length of the baffle 21 in the circumferential direction of the outer cylinder 10 is slightly larger than the extension length of the through opening 101 in the circumferential direction of the outer cylinder 10. It can be understood that when the baffle 21 rotates to a position facing the outer cylinder section, the baffle 21 has a small portion of the through opening 101 on both sides of the circumferential direction of the outer cylinder 10. The partial stopping area is small and will not affect the flow effect of the fluid at the through opening 101. The outer cylinder section is provided with latches on both sides of the outer cylinder body 10 in the circumferential direction, and the baffle 21 has at least two groups of connection holes 211, one group of connection holes 211 is distributed on the inner sides of both sides of the outer cylinder body 10 in the circumferential direction and faces the latches on the outer cylinder section one by one when the baffle 21 rotates to a position directly opposite to the outer cylinder section, and the other group of connection holes 211 is distributed on the outer sides of both sides of the outer cylinder body 10 in the circumferential direction and faces the latches on the outer cylinder section one by one when the baffle 21 rotates to a position directly opposite to the through-port 101. This arrangement ensures that the state of the baffle 21 when opening or blocking the through-port 101 is limited, and avoids the situation where the actual flow area (actual opening area) of the through-port 101 is uncontrollable due to its self-rotation, and this plug-in method is easy to operate and can be completed without professional tools, which greatly improves the convenience and efficiency of operation.

[0041] It is understandable that the number and distribution of the connection holes 211 and the latches 25 can be adjusted according to actual conditions, so that the operator can adjust the actual opening area of ​​the through opening 101 according to actual conditions.

[0042] like Figure 1 and Figure 3 As shown, the inner cylinder 20 also includes an adapter sleeve 22, an adapter bearing 23 and a connecting plate 24. The adapter section 311 has a first penetration section 3111 that passes through the end plate of the outer cylinder 10, and the connection section 312 has a second penetration section 3121 that passes through the other end plate of the outer cylinder 10. The outer peripheries of the first penetration section 3111 and the second penetration section 3121 are both limitedly sleeved with the adapter sleeve 22. Both ends of any baffle 21 in the axial direction of the outer cylinder 10 are correspondingly connected to a connecting plate 24. The end of the connecting plate 24 that is radially away from the baffle 21 in the outer cylinder 10 is rotatably sleeved on the outer periphery of the adapter sleeve 22 through the adapter bearing 23.

[0043] Such arrangement realizes the transfer and flexible rotation installation of the baffle 21, and ensures the reliability of the installation of the baffle 21 and the reliability of the rotation of the baffle 21. Specifically, for any baffle 21 in this embodiment, a connecting plate 24 is fixedly connected to the inner side of both ends of the outer cylinder 10 in the axial direction, and the other end of any connecting plate 24 is rotatably connected to the outer periphery of the corresponding transfer sleeve 22 through a transfer bearing 23, and the transfer bearing 23 on the outer periphery of any transfer sleeve 22 is symmetrically connected to two connecting plates 24. Specifically, the radial dimension of the first penetration section 3111 is the smallest on the transfer section 311, and the radial dimension of the second penetration section 3121 is the smallest on the connection section 312, so that the two can also play a limiting role in the axial movement of the transfer sleeve 22 mounted thereon, thereby avoiding the transfer sleeve 22 from moving or swaying.

[0044] The connecting plate 24 is a fan-shaped plate, and its fan-shaped angle is the same as the arc angle of the baffle plate 21 in the circumferential direction of the outer cylinder 10 .

[0045] like Figure 1 , Figure 3 and Figure 6 As shown, an air guide port 102 is provided on the end plate of the outer cylinder 10 close to the air guide assembly 40. The air guide port 102 is arranged opposite to the through opening 101 in the radial direction of the outer cylinder 10. The air guide cavity 401 is connected with the cavity of the outer cylinder 10 through the air guide port 102. When the baffle 21 blocks the through opening 101, the connecting plate 24 blocks the air guide port 102.

[0046] This arrangement increases the flow area between the inside of the outer cylinder 10 and the air guide cavity 401, which is beneficial to improving fluid fluidity and flow efficiency. Specifically, in this embodiment, two air guide ports 102 are provided, and the two air guide ports 102 are respectively arranged in two fan-shaped areas of the end plate of the outer cylinder 10 corresponding to the two through ports 101. This arrangement facilitates the simultaneous opening or blocking of the through ports 101 and the air guide ports 102, and facilitates the spacing and protection of the outer cylinder 10 cavity and the air guide cavity 401 when the chip sensor for the electronic nose for pneumoconiosis detection does not need to detect gas, thereby improving the protection effect.

[0047] like Figure 1 , Figure 2 and Figure 6 As shown, the air guide assembly 40 also includes an air guide tube 41, a fixed block 42 and a protective net 43. There are multiple fixed blocks 42, and the fixed blocks 42 are distributed along the circumference of the air guide tube 41 on the outer periphery of one end of the air guide tube 41 facing the outer cylinder 10. Any fixed block 42 is connected to the end plate of the outer cylinder 10 through a fastener 60 to buckle the air guide tube 41 on the end plate of the outer cylinder 10 and form an air guide cavity 401. The end of the air guide tube 41 facing away from the outer cylinder 10 is open and is provided with a protective net 43.

[0048] The air guide tube 41 in this embodiment is open at both ends of the outer cylinder 10 in the axial direction, one of the openings is buckled on the end plate of the outer cylinder 10 through the fixing block 42 and the fastener 60, so that the air guide cavity 401 is formed between the inside of the air guide tube 41 and the end plate of the outer cylinder 10, and the other opening is provided with a protective net 43. This arrangement facilitates the installation of the air guide tube 41 and the formation of the air guide cavity 401, and by providing the protective net 43, the inside of the air guide cavity 401 is protected while ensuring that the air guide cavity 401 is connected to its external environment, and dust, particles, etc. can be prevented from entering the cavity from the opening of the air guide tube 41 to damage the air guide member 44, which is conducive to extending the service life of the air guide assembly 40.

[0049] Among them, the end of the transition section 311 is provided with a placement groove 3112 and a slot 3113 arranged around the periphery of the placement groove 3112, the air guide assembly 40 also includes a battery seat 45 and an insert block 46 arranged on the periphery of the battery seat 45, the battery seat 45 is arranged in the placement groove 3112, the insert block 46 is movably arranged in the slot 3113 and cooperates with the inner wall limit of the slot 3113, and the guiding positioning of the installation of the battery seat 45 is realized through the cooperation of the slot 3113 and the insert block 46, a button battery is installed in the battery seat 45, and the button battery is electrically connected to the air guide member 44.

[0050] like Figure 4 As shown, the cinch assembly 50 includes a clamping assembly 51, an inner ring 52 and an outer ring 53 fixedly mounted on the outer circumference of the inner ring 52. The inner ring 52 and the outer ring 53 are spaced apart to form a clamping cavity 501. The clamping assembly 51 has a clamping end movably disposed in the clamping cavity 501 to clamp the opening of the collection bag extending into the clamping cavity 501 between the clamping end and the inner ring 52.

[0051] In this embodiment, the tie assembly 50 further includes a connecting block 54, and the inner ring 52 and the outer ring 53 are connected by a plurality of spaced connecting blocks 54. The insertion guide of the collection bag opening is realized by being located in the clamping cavity 501, and then the opening of the collection bag extending into the clamping cavity 501 is clamped by the movable clamping end, which is convenient, reliable and easy to operate.

[0052] Specifically, there are multiple clamping assemblies 51, which are spaced apart along the circumference of the inner ring 52. The clamping assemblies 51 include a threaded column 511 and an arc-shaped clamping strip 512 whose shape matches the clamping cavity 501. The outer circumference of the outer ring 53 has a threaded hole 531 corresponding to the threaded column 511, and the arc-shaped clamping strip 512 is located in the clamping cavity 501. For any clamping assembly 51, the end of the threaded column 511 passes through the threaded hole 531 and is rotatably arranged on the arc-shaped clamping strip 512. The threaded column 511 is threadedly connected with the threaded hole 531 to adjust the position of the arc-shaped clamping strip 512 in the clamping cavity 501 along the radial direction of the outer cylinder 10. The arc-shaped clamping strip 512 forms a clamping end toward one end of the inner ring 52. Specifically, in this embodiment, there are four clamping assemblies 51, which have the same structure and are spaced apart equidistantly along the circumference of the inner ring 52.

[0053] This arrangement facilitates the adjustment of the arc-shaped clamping strip 512 and ensures the clamping area of ​​the multiple clamping components 51 on the opening of the collection bag, making the adjustment convenient and the clamping stable and reliable. Specifically, any arc-shaped clamping strip 512 is position-adjusted through multiple sets of threaded columns 511 and threaded holes 531, further improving the stability and reliability of the adjustment. Moreover, this adjustable clamping design can adapt to collection bags of different sizes, improve the versatility and adaptability of the electronic nose, and is suitable for a variety of gas collection needs.

[0054] Furthermore, the inner ring 52 has arc-shaped clamping grooves 521 corresponding to the plurality of arc-shaped clamping strips 512 one by one, and the arc-shaped clamping strips 512 and the arc-shaped clamping grooves 521 are separably limitedly matched.

[0055] In this embodiment, the arc-shaped clamping groove 521 is adapted to the arc-shaped clamping strip 512, and there can still be a certain gap between the two after the two are matched. In this way, when the opening of the collection bag is pre-installed, the opening part of the collection bag can be pressed into the corresponding arc-shaped clamping groove 521 through the arc-shaped clamping strip 512. Compared with the case where it is directly clamped on the surface of the inner ring 52, the arc-shaped clamping groove 521 and the arc-shaped clamping strip 512 increase the clamping area of ​​the collection bag opening, further improving the stability and reliability of clamping.

[0056] It is understandable that the system using the chip sensor for electronic nose for pneumoconiosis detection provided by the present invention includes an air intake module, a sensor array module, a signal processing module, a pattern recognition module and a power supply module. The air intake module is electrically connected to the air guide 44 or to other air guide devices, so as to guide and clean the inside after the chip sensor for electronic nose for pneumoconiosis detection detects the gas, so as to ensure the detection accuracy when used next time. The sensor array module is electrically connected to the gas sensor array 33, and the sensor array module is composed of several groups of gas sensor units and temperature and humidity sensor units with broad-spectrum response characteristics, wherein several groups of gas sensor units are equivalent to olfactory neurons, and then the cross-sensitivity characteristics of the gas sensor array 33 are used to detect the mixed gas. The signal processing module is used to receive the signal of the sensor array module and convert the change of the resistance of the gas sensor unit into a change of voltage, and send it to the corresponding AD conversion circuit, and then transmit it to the MCU (microcontroller) of the electronic nose. The pattern recognition module receives the signal from the signal processing module and analyzes it. The pattern recognition module is equivalent to a microcomputer, which has a corresponding pattern recognition algorithm built in it, and is used to complete the qualitative or quantitative identification of the odor gas. Specifically, in this embodiment, the pattern recognition algorithm adopts the principal component analysis method. It can be understood that the system using the chip sensor for the electronic nose for pneumoconiosis detection provided by the present invention also includes a power module, which is used to provide the power required by the system to ensure the normal operation of the system.

[0057] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0058] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0059] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0060] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0061] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A chip sensor for electronic nose for pneumoconiosis detection, characterized in that: include: An outer cylinder (10) and an inner cylinder (20) arranged inside the outer cylinder (10), wherein the outer periphery of the outer cylinder (10) has a through opening (101), and the inner cylinder (20) is rotatably arranged and is positionally matched with the inner wall of the cavity of the outer cylinder (10) to block or open the through opening (101); A sensor assembly (30) is inserted into the outer cylinder (10) and the inner cylinder (20); one end of the sensor assembly (30) along the axial direction of the outer cylinder (10) is a connection section (312) that at least partially protrudes from one end plate of the outer cylinder (10) and the inner cylinder (20); and the other end of the sensor assembly (30) along the axial direction of the outer cylinder (10) is a transition section (311) that at least partially protrudes from the other end plate of the outer cylinder (10) and the inner cylinder (20); An air guide component (40) is arranged at one end of the outer cylinder (10) in the axial direction, the air guide component (40) having an air guide cavity (401) in communication with the cavity of the outer cylinder (10) and the external environment, the portion of the transition section (311) protruding from the outer cylinder (10) is located in the air guide cavity (401), the air guide component (40) comprises an air guide member (44), the air guide member (44) is located in the air guide cavity (401) and is arranged on the transition section (311), and the air guide member (44) is used to form an air flow from the outer cylinder (10) to the air guide cavity (401); The clamping opening assembly (50) is arranged on the outer periphery of the outer cylinder (10) on the side of the through opening (101) away from the air guide assembly (40) to clamp the opening of the collection bag.

2. The chip sensor for electronic nose for pneumoconiosis detection according to claim 1, characterized in that: The inner cylinder (20) comprises a baffle (21) for blocking the through opening (101); the baffle (21) is an arc-shaped plate whose shape matches the through opening (101); the extension length of the baffle (21) in the circumferential direction of the outer cylinder (10) is greater than the extension length of the through opening (101) in the circumferential direction of the outer cylinder (10); the extension length of the baffle (21) in the axial direction of the outer cylinder (10) is not less than the extension length of the through opening (101) in the axial direction of the outer cylinder (10); the through opening (101) and the baffle (21) are both multiple; the multiple through openings (101) are at least symmetrically distributed around the axis of the outer cylinder (10) along the circumference of the outer cylinder (10); and the multiple baffles (21) block or open the multiple through openings (101) one by one.

3. The chip sensor for electronic nose for pneumoconiosis detection according to claim 2, characterized in that: Any of the baffles (21) is provided with connecting holes (211) on both sides of the outer cylinder (10) in the circumferential direction, and the area of ​​the outer cylinder (10) between two adjacent through openings (101) forms an outer cylinder section. Any of the outer cylinder sections is provided with pluggable pins (25) on both sides of the outer cylinder (10) in the circumferential direction, and the pluggable pins (25) are pluggably inserted into the connecting holes (211) to fix the baffle (21) at a position facing the through opening (101) or facing the outer cylinder section.

4. The chip sensor for electronic nose for pneumoconiosis detection according to claim 1, characterized in that: The inner cylinder (20) comprises an adapter sleeve (22), an adapter bearing (23), a baffle (21) and a connecting plate (24); the adapter section (311) comprises a first penetration section (3111) passing through an end plate of the outer cylinder (10); the connection section (312) comprises a second penetration section (3121) passing through the other end plate of the outer cylinder (10); the outer circumferences of the first penetration section (3111) and the second penetration section (3121) are both limited by a sleeve. The adapter sleeve (22) is provided, the baffle plate (21) is an arc-shaped plate whose shape matches the shape of the through opening (101), and each of the two ends of the baffle plate (21) in the axial direction of the outer cylinder (10) is correspondingly connected to a connecting plate (24), and the connecting plate (24) is rotatably sleeved on the outer periphery of the adapter sleeve (22) at one end of the connecting plate (24) which is away from the baffle plate (21) in the radial direction of the outer cylinder (10) through the adapter bearing (23).

5. The chip sensor for electronic nose for pneumoconiosis detection according to claim 4, characterized in that: An air guide port (102) is arranged on an end plate of the outer cylinder (10) close to the air guide assembly (40); the air guide port (102) is arranged opposite to the through port (101) in the radial direction of the outer cylinder (10); the air guide cavity (401) is connected to the cavity of the outer cylinder (10) through the air guide port (102); and when the baffle plate (21) blocks the through port (101), the connecting plate (24) blocks the air guide port (102).

6. The chip sensor for electronic nose for pneumoconiosis detection according to claim 1, characterized in that: The air guide assembly (40) further comprises an air guide tube (41), a fixing block (42) and a protective net (43); the fixing blocks (42) are multiple and are distributed along the circumference of the air guide tube (41) on the outer periphery of one end of the air guide tube (41) facing the outer cylinder (10); any one of the fixing blocks (42) is connected to the end plate of the outer cylinder (10) via a fastener (60) so that the air guide tube (41) is buckled onto the end plate of the outer cylinder (10) and forms the air guide cavity (401); the end of the air guide tube (41) facing away from the outer cylinder (10) is open and is provided with the protective net (43).

7. The chip sensor for electronic nose for pneumoconiosis detection according to claim 1, characterized in that: The constriction assembly (50) comprises a clamping assembly (51), an inner ring (52) and an outer ring (53) fixedly mounted on the outer circumference of the inner ring (52); the inner ring (52) and the outer ring (53) are spaced apart to form a clamping cavity (501); the clamping assembly (51) has a clamping end movably arranged in the clamping cavity (501) to clamp the opening of the collection bag extending into the clamping cavity (501) between the clamping end and the inner ring (52).

8. The chip sensor for electronic nose for pneumoconiosis detection according to claim 7, characterized in that: There are a plurality of the clamping assemblies (51), and the plurality of the clamping assemblies (51) are spaced apart along the circumference of the inner ring (52), and the clamping assemblies (51) include a threaded column (511) and an arc-shaped clamping strip (512) whose shape is adapted to the clamping cavity (501), and the outer circumference of the outer ring (53) has a threaded hole (531) corresponding to the threaded column (511), and the arc-shaped clamping strip (512) is located in the clamping cavity (501); for any one of the The clamping assembly (51) is characterized in that the end of the threaded column (511) passes through the threaded hole (531) and is rotatably arranged on the arc-shaped clamping strip (512). The threaded column (511) is threadedly connected to the threaded hole (531) to adjust the position of the arc-shaped clamping strip (512) in the clamping cavity (501) along the radial direction of the outer cylinder (10). One end of the arc-shaped clamping strip (512) facing the inner ring (52) forms the clamping end.

9. The chip sensor for electronic nose for pneumoconiosis detection according to claim 8, characterized in that: The inner ring (52) has arc-shaped clamping grooves (521) corresponding one-to-one to the plurality of arc-shaped clamping strips (512), and the arc-shaped clamping strips (512) and the arc-shaped clamping grooves (521) are separably positionally matched.

10. The chip sensor for electronic nose for pneumoconiosis detection according to claim 1, characterized in that: The sensor assembly (30) comprises a circuit board (31), a chip (32) and a gas sensor array (33); the two ends of the circuit board (31) respectively form the transition section (311) and the wiring section (312); the portion of the circuit board (31) located inside the inner cylinder (20) is limitedly matched with the inner wall of the inner cylinder (20); and the chip (32) and the gas sensor array (33) are both arranged on the circuit board (31) located inside the inner cylinder (20).

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