Short-term breath rapid collection device for cattle

Abstract

The invention provides a short-term breath rapid collection device for cattle, and belongs to the technical field of animal husbandry biological monitoring. The gas collecting assembly comprises an inspiration channel used for conveying gas inhaled by the cattle, an expiration channel used for conveying gas exhaled by the cattle, an inspiration port and an expiration port which are formed in the far ends of the inspiration channel and the expiration channel respectively, and an air inlet and a collecting port which are formed in the near ends of the far ends of the inspiration channel and the expiration channel respectively. The inhalation one-way valve is arranged at the inhalation port; the exhalation one-way valve is arranged at the exhalation port; by means of the short-term breath rapid collection device for the cattle, gas exhaled by the cattle in multiple times of breath can be rapidly collected in a short time, and the discomfort of animals during gas collection is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of livestock biological monitoring, and more particularly relates to a short-term respiration rapid collection device for cattle. Background Art

[0002] Monitoring the components of cattle exhaled gas is closely related to their health status. As a key indicator of energy metabolism and respiratory function, the concentration change of carbon dioxide can reflect the digestive system, respiratory system and overall metabolic state of cattle.

[0003] As ruminants, cattle have a large amount of gas produced by microbial fermentation in their rumen, which is the first stomach. Carbon dioxide is one of the main components, accounting for about 30 - 50% of the rumen gas. Abnormal changes in carbon dioxide concentration may indicate rumen acidosis. When cattle ingest excessive carbohydrates in easily fermentable concentrate feed, lactic acid accumulates in the rumen, the pH value drops, resulting in the inhibition of the activity of carbon dioxide-producing microorganisms and a decrease in carbon dioxide production.

[0004] Abnormal changes in carbon dioxide concentration may also be related to rumen stasis. When digestive function weakens, rumen microbial activity decreases, and the amount of carbon dioxide produced drops significantly. This indicates low digestive efficiency or metabolic disorders, and it is necessary to check the feed quality or disease infection, such as parasites.

[0005] The carbon dioxide content in cattle exhaled gas is a "barometer" reflecting their health, covering multiple aspects such as digestion, respiration, metabolism and stress. By real-time monitoring of carbon dioxide, farmers can detect diseases early, optimize feed management and support precision farming.

[0006] Existing cattle exhaled gas collection devices are suitable for long-term collection of cattle exhaled gas. Cattle need to wear the collection device for a long time, usually for several days. Wearing a gas collection device at the mouth and nose for a long time may cause discomfort and lead to a decrease in compliance. Summary of the Invention

[0007] Based on this, the purpose of the present invention is to provide a short-term respiration rapid collection device for cattle, which is used to rapidly collect the gas exhaled by cattle in several breaths in a short time; the collection device includes: A gas collection component, which includes an inhalation channel for delivering the gas inhaled by cattle, an exhalation channel for delivering the gas exhaled by cattle, an inhalation port and an exhalation port respectively arranged at the distal ends of the inhalation channel and the exhalation channel, an intake port and a collection port respectively arranged at the proximal ends of the distal ends of the inhalation channel and the exhalation channel, an inhalation one-way valve arranged at the inhalation port, and an exhalation one-way valve arranged at the exhalation port; the inhalation one-way valve restricts the unidirectional flow of the gas passing through the inhalation channel from the intake port to the inhalation port; the exhalation one-way valve restricts the unidirectional flow of the gas passing through the exhalation channel from the exhalation port to the collection port; Airbag assembly, the airbag assembly includes a nasal airbag disposed between the proximal end and the distal end of the exhalation passage; the distal ends of the inhalation passage and the exhalation passage can extend into the nasal cavity from the bovine nostrils, and after the nasal airbag is inflated, it can block the gap between the outer walls of the inhalation passage and the exhalation passage and the nostril part.

[0008] Preferably, the collection device further includes two symmetrically arranged distal connecting arms. A partition is provided inside the distal connecting arms, and the partition divides the internal space of the distal connecting arms into two regions, which are the inhalation passage and the exhalation passage respectively; the two distal connecting arms are arranged facing each other, and the inhalation port and the exhalation port are arranged on the side surfaces outside the distal connecting arms; The nasal airbag is annularly sleeved outside the distal connecting arms; the distal ends of the two distal connecting arms can respectively extend into the two nostrils of the cow, and after the nasal airbags outside the two distal connecting arms are inflated, they can block the gap between the outer wall of the distal connecting arms and the nostril part.

[0009] Preferably, the distal connecting arm includes a bending region. The two distal connecting arms in the bending region extend in a direction away from each other in an outward-expanded shape, and the bending regions of the two distal connecting arms and the distal ends of the connecting arms extend in a direction close to each other; the region between the bending region and the distal end of the connecting arm is an adduction region, and the nasal airbag is arranged outside the adduction region; After the nasal airbag is inflated, it expands simultaneously towards the inner side and the outer side of the adduction region. The direction of expansion towards the inner side of the adduction region is the first expansion direction, and the direction of expansion towards the outer side of the adduction region is the second expansion direction; the first expansion directions of the nasal airbags on the two connecting arms are opposite to block the bovine nostril region; the second expansion direction of the nasal airbag faces the front of the collection device to block the bovine maxillary region.

[0010] Preferably, the nasal airbag is annular. The part connected to the distal connecting part is the fixed part, and the part that can extend in the first expansion direction and the second expansion direction after inflation is the extending part; a tensioning wire is arranged inside the nasal airbag, and the tensioning wire connects the fixed part and the extending part in the second expansion direction; after the nasal airbag is inflated, the tensioning wire is in a stretched state, and after the nasal airbag is deflated, the tensioning wire can pull back the extending part that extends in the second expansion direction to prevent the nasal airbag from blocking the inhalation port and the exhalation port.

[0011] Preferably, nasal clips are provided at the ends of the distal ends of the distal connecting arms. The nasal clips of the two distal connecting arms are arranged facing each other, and flexible fitting parts are provided on the opposite surfaces of the nasal clips of the two distal connecting arms for contacting the nasal septum inside the bovine nasal cavity; the nasal clips of the two connecting arms respectively clamp the nasal septum from both sides of the nasal septum to fix the relative position of the collection device and the bovine nasal cavity.

[0012] Preferably, the airbag assembly further includes a mouth airbag, an air pump for inflating the nasal airbag and the mouth airbag, and a trachea connecting the air pump and the nasal airbag.

[0013] Preferably, both ends of the mouth airbag are connected to the nasal airbags on two distal connecting arms, and the air pump can inflate the nasal airbag and the mouth airbag simultaneously through the trachea; The mouth airbag includes a bottom airbag area for surrounding the lower jaw of the cow after inflation and an oral airbag area arranged in the area between the two connecting arms. After the mouth airbag is inflated, it can form a semi-surrounding seal on the cow's mouth to prevent the cow from exhaling gas through the mouth when the gas collection component collects the exhaled gas of the cow.

[0014] Preferably, the collection device further includes an opening and closing driver for driving the two distal connecting arms to open and close, and an opening and closing transmission component connecting the opening and closing driver and the distal connecting arms; the opening and closing transmission component is respectively connected to the proximal ends of the two distal connecting arms, and the opening and closing driver and the opening and closing transmission component can drive the two distal connecting arms to open or close synchronously.

[0015] Preferably, the collection device further includes a proximal connecting arm. The opening and closing transmission component is connected to the distal connecting arm through the proximal connecting arm. The proximal connecting arm is hinged to the distal connecting arm, and a pressure sensor is arranged at the hinged part of the proximal connecting arm and the distal connecting arm. The pressure sensor is used to detect the contact force between the proximal connecting arm and the distal connecting arm.

[0016] Preferably, the collection device further includes a handle. An energy storage device for storing electric energy, a controller for controlling the opening and closing driver and the air pump are arranged inside the handle; control buttons are arranged on the surface of the handle, and the control buttons are connected to the controller. The control buttons are used to control the inflation and exhaust of the air pump and the opening and closing driver to drive the distal connecting arm to open or close; The pressure sensor is connected to the controller. When the controller controls the opening and closing driver to drive the distal connecting arm to close, the pressure sensor detects the contact force between the proximal connecting arm and the distal connecting arm. If the contact force reaches a preset value, the controller controls the opening and closing driver to stop working.

[0017] According to an embodiment of the present invention, a short-term respiration rapid collection device for cows is suitable for rapidly collecting the exhaled gas in several breaths of cows in a short time, reducing the discomfort of animals during gas collection. The gas collection component uses independent inhalation channels and exhalation channels to ensure smooth inhalation of animals and can output the exhaled gas through the collection port. Connecting a gas collection bag to the collection port can continuously collect the exhaled gas in several breaths of cows. The airbag component can block the gap between the outer walls of the inhalation channel and the exhalation channel and the nostril part, accurately collect the exhaled gas of cows, and avoid the collection of interfering gases. Description of the Drawings

[0018] The present disclosure includes drawings, which should be considered to be included in and constitute a part of the specification, and together with the specification, illustrate various exemplary embodiments, features and aspects of the present disclosure, and are used to explain the principles of the present disclosure. The present invention will be more fully understood through the following detailed description in conjunction with the drawings. Among them: Figure 1 This is a usage state diagram of a short-term breathing rapid collection device for cattle according to an embodiment of the present invention; Figure 2 It is a structural schematic diagram of an air bag exhaust state of a short-term breathing rapid collection device for cattle according to an embodiment of the present invention; Figure 3 It is a structural schematic diagram of an airbag inflation state of a short-term breathing rapid collection device for cattle according to an embodiment of the present invention; Figure 4 It is a schematic diagram of the internal structure of a distal connecting arm of a device for rapid collection of short-term breathing of cattle according to an embodiment of the present invention, in an inflated state of an air bag; Figure 5 yes Figure 4 A partial enlarged view of the middle A; Figure 6 It is a schematic diagram of the internal structure of a distal connecting arm of an air bag exhaust state of a device for rapid collection of short-term breathing of cattle according to an embodiment of the present invention; Figure 7 yes Figure 6 A partial enlarged view of point B in the middle; Figure 8 yes Figure 7 A partial enlarged view of point C in the middle; Figure 9 is a schematic diagram of an opening and closing transmission assembly of a device for quickly collecting short-term respiration of cattle according to an embodiment of the present invention; Figure 10 is a cross-sectional view of an opening and closing transmission assembly of a device for quickly collecting short-term respiration of cattle according to an embodiment of the present invention; Figure 11 is a schematic diagram of a reversing component of a device for quickly collecting short-term respiration of cattle according to an embodiment of the present invention; Figure 12 is a cross-sectional view of a reversing assembly of a device for quickly collecting short-term respiration of cattle according to an embodiment of the present invention; Figure 13 This is a schematic diagram of the internal structure of a reversing component of a device for quickly collecting short-term respiration of cattle according to an embodiment of the present invention; Wherein: the intake channel 11, the intake port 111, the air inlet 112, the exhalation channel 12, the exhalation port 121, the collection port 122, the inhalation check valve 13, the exhalation check valve 14, the annular plate 15, the valve core plate 16, the torsion spring 17, the adduction area 20, the nasal airbag 21, the distal connecting arm 22, the separator 23, the nasal clip 24, the fitting part 25, the protruding body 26, the proximal connecting arm 27, the pressure sensor 28, the mouth airbag 29, the opening and closing driver 31, the worm 32, the first input gear 33, the first output gear 34, the second input gear 35, the intermediate gear 36, the second output gear 37, the output shaft 38, the handle 40, the reversing input gear 51, the reversing screw 52, the reversing gear 53, the annular connecting piece 54, the forward ratchet mechanism 55, the reverse ratchet mechanism 56, the reversing valve 57, the reversing rotating shaft 61, the reversing elastic member 62, the pawl 63, the rotation limiting member 64, the air pump 70, the first variable interface 71, the second variable interface 72, the fixed interface 73, the tensioning cable 80. Detailed implementation manners

[0019] The technical solutions of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

[0020] Monitoring the composition of cattle exhaled gas is closely related to their health status. As a key indicator of energy metabolism and respiratory function, the concentration change of carbon dioxide can reflect the digestive system, respiratory system and overall metabolic state of cattle. As ruminants, a large amount of gas is produced by microbial fermentation in the rumen, that is, the first stomach of cattle, and carbon dioxide is one of the main components, accounting for about 30-50% of the rumen gas. Abnormal changes in carbon dioxide concentration may indicate rumen acidosis. When cattle ingest too much carbohydrate in easily fermentable concentrate feed, lactic acid accumulates in the rumen, the pH value drops, resulting in the inhibition of the activity of carbon dioxide-producing microorganisms and a decrease in carbon dioxide production. Abnormal changes in carbon dioxide concentration may also be related to rumen stasis. When the digestive function weakens, the activity of rumen microorganisms decreases, and the amount of carbon dioxide produced decreases significantly. It indicates low digestive efficiency or metabolic disorders, and it is necessary to check the feed quality or disease infection, such as parasites. The carbon dioxide content in cattle exhaled gas is a "barometer" reflecting their health, covering multiple aspects such as digestion, respiration, metabolism and stress. By monitoring carbon dioxide in real time, farmers can detect diseases early, optimize feed management and support precision farming.

[0021] Existing cattle exhaled gas collection devices are suitable for long-term collection of cattle exhaled gas. Cattle need to wear the collection device for a long time, usually for several days. Wearing a gas collection device at the mouth and nose for a long time may cause discomfort and lead to a decrease in compliance.

[0022] To solve the above problems, the object of the present invention is to provide a short-term respiration rapid collection device for cattle, which is used to rapidly collect the gas exhaled by cattle during several breaths in a short time; the collection device includes: A gas collection component, the gas collection component includes an inhalation passage 11 for conveying the gas inhaled by cattle, an exhalation passage 12 for conveying the gas exhaled by cattle, an inhalation port 111 and an exhalation port 121 respectively arranged at the distal ends of the inhalation passage 11 and the exhalation passage 12, an air inlet 112 and a collection port 122 respectively arranged at the proximal ends of the distal ends of the inhalation passage 11 and the exhalation passage 12, an inhalation check valve 13 arranged at the inhalation port 111, and an exhalation check valve 14 arranged at the exhalation port 121; the inhalation check valve 13 restricts the one-way flow of the gas passing through the inhalation passage 11 from the air inlet 112 to the inhalation port 111; the exhalation check valve 14 restricts the one-way flow of the gas passing through the exhalation passage 12 from the exhalation port 121 to the collection port 122; An airbag component, the airbag component includes a nasal airbag 21 arranged between the proximal end and the distal end of the exhalation passage 12; the distal ends of the inhalation passage 11 and the exhalation passage 12 can extend into the nasal cavity from the nostrils of cattle, and after the nasal airbag 21 is inflated, it can block the gap between the outer walls of the inhalation passage 11 and the exhalation passage 12 and the nostril part.

[0023] In this embodiment, as Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 shown, the inhalation passage 11 and the exhalation passage 12 are two parallel and independent pipelines, and the inhalation passage 11 and the exhalation passage 12 respectively include a proximal end and a distal end. When collecting the gas exhaled by cattle, the proximal end is outside the cattle body, and the distal end extends into the nasal cavity of the cattle. After the airbag component is inflated, it can block the nostrils of the cattle, and the inhalation passage 11 and the passage pass through the airbag component. Therefore, after the airbag component is inflated, the respiration of cattle is carried out through the gas collection component. Specifically: When the cattle inhales, the negative pressure generated by inhalation opens the inhalation check valve 13, and the outside air flows into the inhalation passage 11 through the air inlet 112, and then is output from the inhalation port 111 of the inhalation passage 11 into the nasal cavity of the cattle. At this time, the negative pressure generated by inhalation keeps the exhalation check valve 14 closed, and the gas outside the collection port 122 cannot flow back to the exhalation port 121 through the exhalation passage 12.

[0024] When the cattle exhales, the positive pressure generated by exhalation opens the exhalation check valve 14, and the gas exhaled from the cattle body flows into the exhalation passage 12 through the exhalation port 121, and then flows out of the exhalation passage 12 through the collection port 122, and is collected by the gas collection container connected to the outside of the collection port 122. At this time, the positive pressure generated by exhalation keeps the inhalation check valve 13 closed, and the gas exhaled from the cattle body cannot flow back to the air inlet 112 through the inhalation passage 11.

[0025] In some embodiments, the gas collection container may be a gas bag in a contracted state. The exhaled gas of the cow causes the gas bag to expand, and several breaths of the cow enable the gas bag to collect a sufficient volume of gas. The gas bag is detachably connected to the collection port 122, such as by threads, snaps, etc.

[0026] In some embodiments, as Figure 8 shown, both the exhalation one-way valve 14 and the inhalation one-way valve 13 include a fixed annular plate 15, a valve core plate 16 covering the annular plate 15, and an elastic member that pushes the valve core plate 16 to remain in contact with the annular plate 15 without external force.

[0027] The center of the annular plate 15 can be ventilated. The valve core plate 16 is hinged to the annular plate 15. When the valve core plate 16 covers the center of the annular plate 15, gas cannot pass through the annular plate 15. The elastic member can be a torsion spring 17.

[0028] When the air pressure on the side of the valve core plate 16 close to the annular plate 15 increases, the air pressure can push the valve core plate 16 to rotate away from the annular plate 15 around the hinge portion. At this time, a gap is formed between the annular plate 15 and the valve core plate 16, and gas can pass through the gap. After the air pressure disappears, the elastic member pushes the valve core plate 16 to fit the annular plate 15.

[0029] When the air pressure on the side of the valve core plate 16 away from the annular plate 15 increases, the air pressure can push the valve core plate 16 to remain in contact with the annular plate 15, and gas cannot pass through the annular plate 15.

[0030] In some embodiments, the inhalation one-way valve 13 and the exhalation one-way valve 14 are provided at the distal ends of the inhalation passage 11 and the exhalation passage 12. The valve core plate 16 of the inhalation one-way valve 13 faces the inside of the inhalation passage 11, and the valve core plate 16 of the exhalation one-way valve 14 faces the outside of the exhalation passage 12.

[0031] In some embodiments, the distal connecting arm 22 includes a bending region. The two distal connecting arms 22 in the bending region extend away from each other in an outwardly expanding shape, and the bending regions of the two distal connecting arms 22 extend towards each other with the distal ends of the connecting arms; the region between the bending region and the distal ends of the connecting arms is the inwardly converging region 20, and the nasal airbag 21 is provided outside the inwardly converging region 20; The nasal airbag 21 in the inflated state is as Figure 1 、 Figure 3 、 Figure 4 and Figure 5As shown, after the nasal airbag 21 is inflated, it expands simultaneously to the inner and outer sides of the adduction region 20 of the distal connecting arm 22. The direction of expansion towards the inner side of the adduction region 20 is the first expansion direction, and the direction of expansion towards the outer side of the adduction region 20 is the second expansion direction; the first expansion directions of the nasal airbags 21 on the two connecting arms are opposite to seal the bovine nostril region; the second expansion direction of the nasal airbag 21 faces the front of the collection device to seal the bovine maxilla region.

[0032] The nasal airbag 21 in the exhaust state is as Figure 2 , Figure 6 , Figure 7 shown. After the nasal airbag 21 is exhausted, it is sleeved on the outside of the distal connecting arm 22. In some embodiments, the collection device further includes an air path control component. The air path control component is connected to the air pump 70 and the nasal airbag 21. The air path control component is connected to the output port of the air pump 70, and when the air pump 70 operates, it can inflate the nasal airbag 21. The air path control component can use an electromagnetic reversing valve 57 to connect the nasal airbag 21 to the external atmospheric pressure, and at this time the nasal airbag 21 can exhaust.

[0033] In some embodiments, the air path control component can also be connected to the input port of the air pump 70. The electromagnetic reversing valve 57 connects the air inlet 112 of the air pump 70 to the nasal airbag 21 and connects the output port of the air pump 70 to the external atmospheric pressure. At this time, when the air pump 70 operates, it will completely exhaust the nasal airbag 21. When inflation is required, control the electromagnetic reversing valve 57 to act so that the output port of the air pump 70 is connected to the nasal airbag 21, the input port of the air pump 70 is connected to the external atmospheric pressure, and the air pump 70 can inflate the nasal airbag 21 when it operates.

[0034] In this embodiment, the direction of expansion towards the inner side of the adduction region 20 of the distal connecting arm 22 is the first expansion direction, and the first expansion direction is used to seal the region in front of the bovine nose. The direction of expansion towards the outer side of the adduction region 20 of the distal connecting arm 22 is the second expansion direction, and the second expansion direction is used to seal the bovine maxilla region.

[0035] Furthermore, the collection device further includes two symmetrically arranged distal connecting arms 22. A partition 23 is arranged inside the distal connecting arm 22. The partition 23 divides the internal space of the distal connecting arm 22 into two regions, which are the inhalation channel 11 and the exhalation channel 12 respectively; the two distal connecting arms 22 are arranged facing each other, and the inhalation port 111 and the exhalation port 121 are arranged on the side surfaces outside the distal connecting arm 22; The nasal airbag 21 is annularly sleeved on the outside of the distal connecting arm 22; the distal ends of the two distal connecting arms 22 can respectively extend into the two nostrils of the bovine, and after the nasal airbags 21 on the outside of the two distal connecting arms 22 are inflated, they can seal the gap between the outer wall of the distal connecting arm 22 and the nostril part.

[0036] After the nasal airbag 21 is inflated, it expands simultaneously towards the inner and outer sides of the adduction region 20. The direction of expansion towards the inner side of the adduction region 20 is the first expansion direction, and the direction of expansion towards the outer side of the adduction region 20 is the second expansion direction; the first expansion directions of the nasal airbags 21 on the two connecting arms are opposite to seal the bovine nostril region; the second expansion direction of the nasal airbag 21 faces the front of the collection device to seal the bovine maxilla region.

[0037] In this embodiment, as Figure 4 , Figure 5 , Figure 6 and Figure 7 shown, the distal connecting arm 22 is in the shape of a circular tube, and the partition 23 is a partition vertically arranged inside the circular tube, dividing the inside of the circular tube into two regions, which are the inhalation channel 11 and the exhalation channel 12 respectively.

[0038] The two distal connecting arms 22 are arranged facing each other, and the inhalation port 111 and the exhalation port 121 are arranged on the side surfaces outside the distal connecting arms 22. The inner side of the distal connecting arm 22 is the side surface of the distal connecting arm 22 close to the other distal connecting arm 22, and the outer side of the distal connecting arm 22 is the side surface of the distal connecting arm 22 far from the other connecting arm. The distal ends of the two distal connecting arms 22 can respectively extend into the two nostrils of the cow, and after the nasal airbags 21 outside the two distal connecting arms 22 are inflated, they can seal the gap between the outer wall of the distal connecting arm 22 and the nostril part.

[0039] In some embodiments, the shape of the nasal airbag 21 after inflation is shaped during manufacturing. The nasal airbag 21 can be made of a flexible material with a certain ductility, and after inflation, it can first expand into a prefabricated shape, and continue to inflate to evenly extend outward on the basis of the prefabricated shape to ensure the fit of the nasal airbag 21 with the bovine nose.

[0040] Furthermore, the nasal airbag 21 is in a ring shape. The part connected to the distal connecting part is the fixed part, and the part that can expand in the first expansion direction and the second expansion direction after inflation is the extending part; a tension rib 80 is arranged inside the nasal airbag 21, and the tension rib 80 connects the fixed part and the extending part in the second expansion direction; after the nasal airbag 21 is inflated, the tension rib 80 is in a stretched state, and after the nasal airbag 21 exhausts air, the tension rib 80 can pull back the extending part that extends in the second expansion direction to prevent the nasal airbag 21 from blocking the inhalation port 111 and the exhalation port 121.

[0041] In this embodiment, the fixed portion of the nasal airbag 21 can be connected to the outer wall of the distal connecting portion by bonding. The extended portion is capable of extending in the first deployment direction and the second deployment direction after inflation. The tension member 80 is made of an elastic material. One end of the tension member 80 is connected to the inside of the fixed portion, and the other end is connected to the inside of the extended portion extending in the second deployment direction. After inflation, the second deployment direction extends towards the inhalation port 111 and the exhalation port 121. There is a gap between the nasal airbag 21 and the inhalation port 111 and the exhalation port 121 after inflation. The tension member 80 is used to immediately pull back the nasal airbag 21 near the inhalation port 111 and the exhalation port 121 after exhaust, so as to prevent blocking the inhalation port 111 and the exhalation port 121. When inflated, the tension member 80 is stretched and has a tendency to move in the shortening direction. After exhaust, the tension member 80 shortens and pulls back the nasal airbag 21.

[0042] Furthermore, a nasal clip 24 is provided at the end of the distal end of the distal connecting arm 22. The nasal clips 24 of the two distal connecting arms 22 are arranged facing each other. A flexible fitting portion 25 is provided on the opposite surfaces of the nasal clips 24 of the two distal connecting arms 22. The fitting portion 25 is used to contact the nasal septum inside the bovine nasal cavity; the nasal clips 24 of the two connecting arms respectively clamp the nasal septum from both sides of the nasal septum, so as to fix the relative position of the collection device and the bovine nasal cavity.

[0043] In this embodiment, as Figure 5 shown, the fitting portion 25 of the nasal clip 24 is made of a soft material and is used to fit the nasal septum inside the bovine nasal cavity, so as to reduce the discomfort caused to the cow when collecting exhaled gas.

[0044] In some embodiments, a plurality of protrusions 26 are provided on the nasal clip 24. The protrusions 26 contact the bovine nasal cavity when pulled by an external force, causing discomfort to the cow, so as to increase the compliance of the cow.

[0045] Furthermore, the airbag assembly further includes a mouth airbag 29, a gas pump 70 for inflating the nasal airbag 21 and the mouth airbag 29, and a trachea connecting the gas pump 70 and the nasal airbag 21.

[0046] In some embodiments, the two ends of the mouth airbag 29 are respectively connected to the nasal airbags 21 on the two distal connecting arms 22. The gas pump 70 can simultaneously inflate the nasal airbag 21 and the mouth airbag 29 through the trachea; The mouth airbag 29 includes a bottom airbag area for surrounding the bovine mandible after inflation and an oral airbag area provided in the area between the two connecting arms. The mouth airbag 29 can form a semi-surrounding seal on the bovine mouth after inflation, so as to prevent the bovine from exhaling gas through the mouth when the gas collection assembly collects the exhaled gas of the cow.

[0047] As Figure 1 、 Figure 4As shown, the mouth airbag 29 and the nose airbag 21 are internally connected. The nose airbag 21 and the mouth airbag 29 are inflated and deflated simultaneously. The mouth airbag 29 is arranged between the nose airbags 21 of the two distal connecting arms 22. The collection device of this embodiment includes two nose airbags 21 and one mouth airbag 29. After the two nose airbags 21 and the mouth airbag 29 are inflated, they can surround the area around the mouth. The two nose airbags 21 block the area above the mouth, and the mouth airbag 29 blocks the area below the mouth, preventing the cattle from exhaling gas through the mouth when the gas collection component collects the exhaled gas of the cattle.

[0048] Further, the collection device further includes an opening and closing driver 31 for driving the two distal connecting arms 22 to open and close, and an opening and closing transmission component connecting the opening and closing driver 31 and the distal connecting arms 22; the opening and closing transmission component is respectively connected to the proximal ends of the two distal connecting arms 22, and the opening and closing driver 31 and the opening and closing transmission component can drive the two distal connecting arms 22 to open or close synchronously.

[0049] In this embodiment, as Figure 9 、 Figure 10 shown, the opening and closing driver 31 is a motor. A worm 32 is arranged on the output shaft 38 of the motor. The motor can drive the worm 32 to rotate. The collection device includes a handle 40, and the motor is arranged on the handle 40. The opening and closing transmission component includes a first transmission component and a second transmission component arranged on both sides of the worm 32. The first transmission component and the second transmission component are respectively connected to the two distal connecting arms 22, driving the two distal connecting arms 22 to complete the opening and closing actions simultaneously.

[0050] The first transmission component includes a first input gear 33 engaged with the worm 32 and a first output gear 34 engaged with the first input gear 33; the second transmission component includes a second input gear 35 engaged with the worm 32, an intermediate gear 36 coaxially connected to the second input gear 35, and a second output gear 37 engaged with the intermediate gear 36. The two distal connecting arms 22 are respectively connected to the first output gear 34 and the second output gear 37. The first output gear 34 and the second output gear 37 are arranged on the output shaft 38, and the output shaft 38 is arranged on the handle 40. The first output gear 34 and the second output gear 37 can rotate independently relative to the output shaft 38 respectively. The first output gear 34 and the second output gear 37 are arranged at different axial positions on the output shaft 38. The intermediate gear 36 and the second input gear 35 rotate synchronously and in the same direction, and the intermediate gear 36 is used to adapt to the position of the second output gear 37.

[0051] The transmission ratios of the first input gear 33 and the first output gear 34 are the same as those of the second input gear 35, the intermediate gear 36, and the second output gear 37. When the worm 32 rotates, the first output gear 34 and the second output gear 37 rotate in opposite directions and at equal angles.

[0052] Further, the collection device further includes a proximal connecting arm 27. The opening and closing transmission assembly is connected to the distal connecting arm 22 through the proximal connecting arm 27. The proximal connecting arm 27 is hinged to the distal connecting arm 22. A pressure sensor 28 is provided at the hinged portion of the proximal connecting arm 27 and the distal connecting arm 22. The pressure sensor 28 is used to detect the contact force between the proximal connecting arm 27 and the distal connecting arm 22.

[0053] In this embodiment, the collection device includes two proximal connecting arms 27. The two proximal connecting arms 27 are respectively connected to the first output gear 34 and the second output gear 37. The proximal connecting arm 27 is hinged to the distal connecting arm 22. A pressure sensor 28 is provided at the hinged portion. The proximal connecting arm 27 can push the distal connecting arm 22 to open and close synchronously. When the proximal connecting arm 27 drives the distal connecting arm 22 to close, the pressure sensor 28 can be squeezed. The greater the contact force, the greater the pressure received by the pressure sensor 28. The pressure sensor 28 can detect the squeezing force on the bovine nose when clamping the bovine nose. When the pressure detected by the pressure sensor 28 reaches a preset value, the opening and closing driver 31 can be stopped from working to complete the clamping action and avoid harming the bovine.

[0054] In some embodiments, as Figure 10 , Figure 11 shown, the first output gear 34 and the second output gear 37 are sleeved on the output shaft 38. The two proximal connecting arms 27 are respectively connected to the first output gear 34 and the second output gear 37. The first output gear 34 and the second output gear 37 can respectively drive the two proximal connecting arms 27 to rotate at equal angles in opposite directions.

[0055] Further, the collection device further includes a handle 40. An energy storage device for storing electric energy, a controller for controlling the opening and closing driver 31 and the air pump 70 are provided inside the handle 40. Control buttons are provided on the surface of the handle 40. The control buttons are connected to the controller. The control buttons are used to control the inflation and deflation of the air pump 70 and the opening or closing of the distal connecting arm 22 driven by the opening and closing driver 31. The pressure sensor 28 is connected to the controller. When the controller controls the opening and closing driver 31 to drive the distal connecting arm 22 to close, the pressure sensor 28 detects the contact force between the proximal connecting arm 27 and the distal connecting arm 22. If the contact force reaches a preset value, the controller controls the opening and closing driver 31 to stop working.

[0056] In this embodiment, the energy storage device can be a storage battery. An interface for charging is also provided on the handle 40. An energy storage device for storing electric energy, a controller for controlling the opening and closing driver 31 and the air pump 70 are provided inside the handle 40. The control buttons are used to control the inflation and deflation of the air pump 70 and the opening or closing of the distal connecting arm 22 driven by the opening and closing driver 31.

[0057] In some embodiments, asFigure 11 , Figure 12 , Figure 13 As shown in Figure 13 , an inflation and commutation assembly is further provided inside the handle 40. The inflation and commutation assembly is used to connect the output port of the air pump 70 to the nasal airbag 21 when the distal connecting arm 22 is in the closed state, and the air pump 70 can inflate the airbag when it works. When the distal connecting arm 22 is in the open state, the input port of the air pump 70 is connected to the nasal airbag 21, and the air pump 70 can discharge the gas in the airbag when it works.

[0058] Specifically, the inflation and commutation assembly includes a commutation input gear 51 connected to the first input gear 33, a commutation screw 52 arranged at the bottom of the commutation input gear 51, a commutation gear 53 arranged outside the commutation screw 52 and threadedly engaged with the commutation screw 52, an annular connecting member 54 sleeved outside the commutation gear 53, a forward ratchet mechanism 55 and a reverse ratchet mechanism 56 arranged on the annular connecting member 54, and a commutation valve 57 connected to the annular connecting member 54. The forward ratchet mechanism 55 and the reverse ratchet mechanism 56 are respectively arranged on both sides inside the annular connecting member 54, and the forward ratchet mechanism 55 and the reverse ratchet mechanism 56 are at different positions in the axial direction of the annular connecting member 54. The commutation gear 53 can be respectively engaged with the forward ratchet mechanism 55 or the reverse ratchet mechanism 56.

[0059] The forward ratchet mechanism 55 and the reverse ratchet mechanism 56 respectively include a commutation rotating shaft 61 hinged to the annular connecting member 54, a pawl 63 hinged to the commutation gear 53, and a commutation elastic member 62 for keeping the pawl 63 in the meshing position with the commutation gear 53. The annular connecting member 54 is movably connected to the handle 40, and the annular connecting member 54 can rotate relative to the handle 40. A rotation limiting member 64 is arranged on the handle 40, and the rotation limiting member 64 is used to limit the rotation angle of the annular connecting member 54. A forward rotation of 180 degrees is the inflation state, and a reverse rotation of 180 degrees is the exhaust state. It can only rotate reversely when in the inflation state and can only rotate forward when in the exhaust state.

[0060] When the opening and closing driver 31 rotates, it can make the worm 32 rotate forward or backward, and then drive the first input gear 33 and the commutation input gear 51 to rotate forward or backward. The first input gear 33 can drive the commutation screw 52 to rotate synchronously, and then drive the commutation gear 53 to rotate on the commutation screw 52. The commutation gear 53 can rotate to the upper limit or the lower limit on the commutation screw 52.

[0061] When the reversing gear 53 rotates forward, the reverse pawl 63 is stuck in the gear groove of the annular gear, and the forward pawl 63 is not in the gear groove. The reversing gear 53 cannot rotate relative to the annular connector 54. Therefore, the reversing gear 53 rotates relative to the reversing screw 52, and the reversing gear 53 also moves relative to the annular connector 54 in the axial direction. The forward pawl 63 moves into the gear groove, and the reverse pawl 63 is not in the gear groove. The reversing gear 53 drives the annular connector 54 to rotate to the exhaust state through the forward pawl 63 and contacts the rotation limiting member 64. Then, the forward pawl 63 slips, and the reversing gear 53 continues to rotate but cannot drive the annular connector 54 to rotate.

[0062] Conversely, when the reversing gear 53 rotates in the reverse direction, the forward pawl 63 is stuck in the gear groove of the annular gear, and the reverse pawl 63 is not in the gear groove. The reversing gear 53 cannot rotate relative to the annular connector 54. Therefore, the reversing gear 53 rotates relative to the reversing screw 52, and the reversing gear 53 also moves relative to the annular connector 54 in the axial direction. The reverse pawl 63 moves into the gear groove, and the forward pawl 63 is not in the gear groove. The reversing gear 53 drives the annular connector 54 to rotate to the inflation state through the reverse pawl 63 and contacts the rotation limiting member 64. Then, the reverse pawl 63 slips, and the reversing gear 53 continues to rotate but cannot drive the annular connector 54 to rotate.

[0063] The reversing valve 57 is as Figure 12 shown. At both ends on the side of the reversing valve 57, a first variable interface 71 and a second variable interface 72 are respectively provided. The input port and the output port of the air pump 70 are respectively connected to both sides of the reversing valve 57. A fixed interface 73 is provided at the bottom of the reversing valve 57. Inside the reversing valve 57, the first variable interface 71 and the fixed interface 73 are connected. The reversing valve 57 rotates following the annular connector 54. The fixed interface 73 is connected to the nasal airbag 21. The second variable interface 72 is also connected to the external atmospheric pressure.

[0064] In the inflation state, the first variable interface 71 of the reversing valve 57 is connected to the output port of the air pump 70, and the input port of the air pump 70 is connected to the second variable interface 72 of the reversing valve 57. At this time, the air pump 70 works to inflate the nasal airbag 21.

[0065] In the exhaust state, the first variable interface 71 of the reversing valve 57 is connected to the input port of the air pump 70, and the output port of the air pump 70 is connected to the second variable interface 72 of the reversing valve 57. At this time, the air pump 70 works to exhaust the nasal airbag 21.

[0066] The various embodiments disclosed in the present invention have been described above. The above description is exemplary and not exhaustive, and the scope of the present invention is not limited to the embodiments described above. Many modifications and variations are obvious to those of ordinary skill in the art of the present technology without departing from the spirit and scope of the present invention. That is, those of ordinary skill in the art can make various changes and improvements to the present invention in form and detail, and all of these are considered to fall within the protection scope of the present invention. The choice of terms used herein is intended to best explain the principles of the various embodiments, practical applications, or improvements to the technologies in the market, or to enable those of ordinary skill in the art of the present technology to understand the various embodiments disclosed herein.

Claims

1. A short-term respiratory rapid collection device for cattle, which is used to rapidly collect the exhaled gas during several breaths of cattle in a short time; characterized in that, The collection device includes: A gas collection assembly, which includes an inhalation channel (11) for conveying the inhaled gas of the cow, an exhalation channel (12) for conveying the exhaled gas of the cow, an inhalation port (111) and an exhalation port (121) respectively arranged at the distal ends of the inhalation channel (11) and the exhalation channel (12), an intake port (112) and a collection port (122) respectively arranged at the proximal ends of the distal ends of the inhalation channel (11) and the exhalation channel (12), an inhalation one-way valve (13) arranged at the inhalation port (111), and an exhalation one-way valve (14) arranged at the exhalation port (121); the inhalation one-way valve (13) restricts the one-way flow of the gas passing through the inhalation channel (11) from the intake port (112) to the inhalation port (111); the exhalation one-way valve (14) restricts the one-way flow of the gas passing through the exhalation channel (12) from the exhalation port (121) to the collection port (122). An airbag assembly, which includes a nasal airbag (21) arranged between the proximal end and the distal end of the exhalation channel (12); the distal ends of the inhalation channel (11) and the exhalation channel (12) can extend into the nasal cavity from the cow's nostrils, and after the nasal airbag (21) is inflated, it can block the gap between the outer walls of the inhalation channel (11) and the exhalation channel (12) and the nostril part.

2. The short-term respiration rapid acquisition device for cattle according to claim 1, characterized in that: The collection device further includes two symmetrically arranged distal connecting arms (22), and a partition (23) is arranged inside the distal connecting arms (22). The partition (23) divides the inner space of the distal connecting arms (22) into two regions, which are the inhalation channel (11) and the exhalation channel (12) respectively; the two distal connecting arms (22) are arranged facing each other, and the inhalation port (111) and the exhalation port (121) are arranged on the side surfaces outside the distal connecting arms (22). The nasal airbag (21) is annularly sleeved on the outside of the distal connecting arms (22); the distal ends of the two distal connecting arms (22) can respectively extend into the two nostrils of the cow, and after the nasal airbags (21) on the outside of the two distal connecting arms (22) are inflated, they can block the gap between the outer wall of the distal connecting arms (22) and the nostril part.

3. The short-term respiration rapid acquisition device for cattle according to claim 2, wherein: The distal connecting arm (22) includes a bending region, and the two distal connecting arms (22) in the bending region extend in a direction away from each other in an outward-expanded shape, and the bending regions of the two distal connecting arms (22) and the distal ends of the connecting arms extend in a direction close to each other; the region between the bending region and the distal end of the connecting arm is an adduction region (20), and the nasal airbag (21) is arranged outside the adduction region (20). After the nasal airbag (21) is inflated, it expands simultaneously towards the inside and outside of the adduction region (20). The direction of expansion towards the inside of the adduction region (20) is the first expansion direction, and the direction of expansion towards the outside of the adduction region (20) is the second expansion direction; the first expansion directions of the nasal airbags (21) on the two connecting arms are opposite to block the cow nostril region; the second expansion direction of the nasal airbag (21) faces the front of the collection device to block the cow maxilla region.

4. The short-term respiration rapid acquisition device for cattle according to claim 3, wherein: The nasal airbag (21) is annular. The part connected to the distal connection part is the fixed part, and the part that can extend in the first deployment direction and the second deployment direction after inflation is the extension part. A tension rib (80) is arranged inside the nasal airbag (21), and the tension rib (80) connects the fixed part and the extension part in the second deployment direction. After the nasal airbag (21) is inflated, the tension rib (80) is in a stretched state. After the nasal airbag (21) is deflated, the tension rib (80) can pull back the extension part that extends in the second deployment direction to prevent the nasal airbag (21) from blocking the air inlet (111) and the air outlet (121).

5. The short-term respiration rapid acquisition device for cattle according to claim 2, characterized in that: A nasal clip (24) is arranged at the end of the distal end of the distal connection arm (22). The nasal clips (24) of the two distal connection arms (22) are arranged facing each other. Flexible fitting parts (25) are arranged on the opposite surfaces of the nasal clips (24) of the two distal connection arms (22), and the fitting parts (25) are used to contact the nasal septum inside the bovine nasal cavity. The nasal clips (24) of the two connection arms respectively clamp the nasal septum from both sides of the nasal septum to fix the relative position of the collection device and the bovine nasal cavity.

6. The short-term respiration rapid acquisition device for cattle according to claim 2, characterized in that: The airbag assembly further includes a mouth airbag (29), an air pump (70) for inflating the nasal airbag (21) and the mouth airbag (29), and an air tube connecting the air pump (70) and the nasal airbag (21).

7. The short-term respiration rapid acquisition device for cattle according to claim 6, wherein: Both ends of the mouth airbag (29) are respectively connected to the nasal airbags (21) on the two distal connection arms (22), and the air pump (70) can simultaneously inflate the nasal airbag (21) and the mouth airbag (29) through the air tube; The mouth airbag (29) includes a bottom airbag area for surrounding the bovine mandible after inflation and an oral airbag area arranged in the area between the two connection arms. After the mouth airbag (29) is inflated, it can form a semi-surrounding seal on the bovine mouth to prevent the bovine from exhaling gas through the mouth when the gas collection assembly collects the bovine exhaled gas.

8. The short-term respiration rapid acquisition device for cattle according to claim 6, wherein: The collection device further includes an opening and closing driver (31) for driving the two distal connection arms (22) to open and close, and an opening and closing transmission assembly connecting the opening and closing driver (31) and the distal connection arms (22); the opening and closing transmission assembly is respectively connected to the proximal ends of the two distal connection arms (22), and the opening and closing driver (31) and the opening and closing transmission assembly can drive the two distal connection arms (22) to open or close synchronously.

9. The short-term respiration rapid acquisition device for cattle according to claim 8, characterized in that: The collection device further includes a proximal connection arm (27). The opening and closing transmission assembly is connected to the distal connection arm (22) through the proximal connection arm (27). The proximal connection arm (27) is hinged to the distal connection arm (22). A pressure sensor (28) is arranged at the hinge part of the proximal connection arm (27) and the distal connection arm (22), and the pressure sensor (28) is used to detect the contact force between the proximal connection arm (27) and the distal connection arm (22).

10. The short-term respiration rapid acquisition device for cattle according to claim 9, characterized in that: The collection device further includes a handle (40). An energy storage device for storing electric energy, a controller for controlling the opening and closing driver (31) and the air pump (70) are arranged inside the handle (40); control buttons are arranged on the surface of the handle (40), and the control buttons are connected to the controller. The control buttons are used to control the inflation and deflation of the air pump (70) and the opening and closing of the distal connection arms (22) driven by the opening and closing driver (31); The pressure sensor (28) is connected to the controller. When the controller controls the opening and closing driver (31) to drive the distal connecting arm (22) to close, the pressure sensor (28) detects the contact force between the proximal connecting arm (27) and the distal connecting arm (22), and if the contact force reaches a preset value, the controller controls the opening and closing driver (31) to stop working.

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