A short-term respiratory rapid collection device for cattle

Abstract

The present invention provides a short-term breathing rapid collection device for cattle, which belongs to the field of animal husbandry biological monitoring technology. The device comprises a gas collection component and an air bag component. The gas collection component comprises an inhalation channel for conveying the gas inhaled by the cattle, an exhalation channel for conveying the gas exhaled by the cattle, an inhalation port and an exhalation port respectively arranged at the far ends of the inhalation channel and the exhalation channel, an air inlet and a collection port respectively arranged at the proximal ends of the far 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. By using such a short-term breathing rapid collection device for cattle, the gas exhaled by the cattle in several breaths can be quickly collected in a short time, thereby reducing the discomfort of the animal when collecting gas.

Description

Technical Field

[0001] The invention belongs to the technical field of animal husbandry biological monitoring, and more specifically relates to a device for quickly collecting short-term breathing data of cattle. Background Art

[0002] Monitoring the composition of cattle's exhaled gas is closely related to their health. Carbon dioxide is a key indicator of energy metabolism and respiratory function, and changes in its concentration can reflect the cattle's digestive system, respiratory system, and overall metabolic status.

[0003] As ruminants, cattle produce large amounts of gas through microbial fermentation in their rumen, the first stomach. Carbon dioxide is a major component, accounting for approximately 30-50% of rumen gas. Abnormal changes in carbon dioxide concentrations may indicate ruminal acidosis. When cattle consume excessive amounts of easily fermentable carbohydrates in concentrate feeds, lactic acid accumulates in the rumen, lowering the pH. This inhibits the activity of carbon dioxide-producing microorganisms and reduces carbon dioxide production.

[0004] Abnormal changes in carbon dioxide concentration may also be related to rumen stagnation. When digestive function is weakened, rumen microbial activity decreases and carbon dioxide production decreases significantly. This indicates inefficient digestion or metabolic disorders, and requires checking feed quality or disease infection, such as parasites.

[0005] The carbon dioxide content in a cow's exhaled breath is a barometer of its health, encompassing digestion, respiration, metabolism, and stress. Real-time carbon dioxide monitoring enables farmers to detect diseases early, optimize feed management, and support precision farming.

[0006] Existing cattle exhaled gas collection devices are suitable for collecting cattle exhaled gas for a long time. Cows need to wear the collection device for a long time, usually for several days. Wearing the gas collection device on the mouth and nose for a long time may cause discomfort and lead to reduced compliance. Summary of the Invention

[0007] Based on this, the object of the present invention is to provide a short-term breathing rapid collection device for cattle, which is used to quickly collect the exhaled gas from several breaths of cattle in a short period of time; the collection device includes:

[0008] A gas collection assembly, comprising an inhalation channel for conveying inhaled gas from the cow, an exhalation channel for conveying exhaled gas from the cow, an inhalation port and an exhalation port respectively arranged at the distal ends of the inhalation channel and the exhalation channel, an air inlet and a collection port respectively arranged at the proximal 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 one-way flow of gas from the air inlet to the inhalation port through the inhalation channel; and the exhalation one-way valve restricts one-way flow of gas from the exhalation port to the collection port through the exhalation channel;

[0009] The airbag assembly includes a nasal airbag arranged between the proximal end and the distal end of the exhalation channel; the distal ends of the inhalation channel and the exhalation channel can extend into the nasal cavity from the cow's nostril, and the nasal airbag can block the gap between the outer walls of the inhalation channel and the exhalation channel and the nostril after being inflated.

[0010] Preferably, the collection device further comprises two symmetrically arranged distal connecting arms, each of which is provided with a partition, the partition dividing the internal space of the distal connecting arm into two areas, namely an inhalation channel and an exhalation channel; the two distal connecting arms are arranged facing each other, and the inhalation port and the exhalation port are provided on the outer side of the distal connecting arm;

[0011] The nasal airbag is annularly sleeved on the outside of the distal connecting arm; the distal ends of the two distal connecting arms can be respectively extended into the two nostrils of the cow, and the nasal airbags on the outside of the two distal connecting arms can block the gap between the outer wall of the distal connecting arm and the nostril after being inflated.

[0012] Preferably, the distal connecting arm includes a bending region, the two distal connecting arms in the bending region extend away from each other in an outwardly expanding shape, and the bending regions of the two distal connecting arms and the distal ends of the connecting arms extend toward each other; the region between the bending region and the distal ends of the connecting arms is an adduction region, and the nasal airbag is arranged outside the adduction region;

[0013] After the nasal airbag is inflated, it expands toward the inside and outside of the inward area at the same time. The direction of expansion toward the inside of the inward area is the first expansion direction, and the direction of expansion toward the outside of the inward area is the second expansion direction. The first expansion directions of the nasal airbags on the two connecting arms are opposite to each other to block the cow's nostril area. The second expansion direction of the nasal airbag is toward the front of the collection device to block the cow's upper jaw area.

[0014] Preferably, the nasal airbag is ring-shaped, the part connected to the distal connecting part is the fixed part, and the part that can be extended in the first expansion direction and the second expansion direction after inflation is the extended part; a tension rod is provided inside the nasal airbag, and the tension rod connects the fixed part and the extended part in the second expansion direction; after the nasal airbag is inflated, the tension rod is in an elongated state, and after the nasal airbag is deflated, the tension rod can pull back the extended part extending in the second expansion direction to prevent the nasal airbag from blocking the inhalation port and the exhalation port.

[0015] Preferably, a nose clip is provided at the distal end of the distal connecting arm, and the nose clips of the two distal connecting arms are arranged facing each other. Flexible fitting parts are provided on the opposite surfaces of the nose clips of the two distal connecting arms, and the fitting parts are used to contact the nasal septum inside the cow's nasal cavity; the nose clips of the two connecting arms clamp the nasal septum from both sides of the nasal septum, respectively, to achieve the fixation of the relative position of the collection device and the cow's nasal cavity.

[0016] Preferably, the airbag assembly further includes a mouth airbag, an air pump for inflating the nasal airbag and the mouth airbag, and an air tube connecting the air pump and the nasal airbag.

[0017] Preferably, both ends of the mouth airbag are connected to the nasal airbags on the two distal connecting arms respectively, and the air pump can inflate the nasal airbag and the mouth airbag simultaneously through the trachea;

[0018] The mouth airbag includes a bottom airbag area for surrounding the cow's lower jaw after inflation and a mouth airbag area arranged in the area between the two connecting arms. After inflation, the mouth airbag can form a semi-enclosed blockage of the cow's mouth, preventing the cow from exhaling gas through the mouth when the gas collection component collects the cow's exhaled gas.

[0019] Preferably, the acquisition device also includes an opening and closing driver for driving the two distal connecting arms to open and close, and an opening and closing transmission assembly connecting the opening and closing driver and the distal connecting arms; the opening and closing transmission assembly 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 assembly can drive the two distal connecting arms to open or close synchronously.

[0020] Preferably, the collection device also includes a proximal connecting arm, the opening and closing transmission assembly is connected to the distal connecting arm through the proximal connecting arm, the proximal connecting arm and the distal connecting arm are hinged, and the hinged part of the proximal connecting arm and the distal connecting arm is provided with a pressure sensor, which is used to detect the contact force between the proximal connecting arm and the distal connecting arm.

[0021] Preferably, the collection device further comprises a handle, wherein an energy storage device for storing electrical energy, a controller for controlling the opening and closing drive, and an air pump are provided inside the handle; a control button is provided on the surface of the handle, the control button is connected to the controller, and the control button is used to control the inflation and exhaust of the air pump and the opening and closing drive to drive the distal connecting arm to open or close;

[0022] 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 opening and closing driver is controlled to stop working.

[0023] According to an embodiment of the present invention, a short-term rapid breathing collection device for cattle is suitable for quickly collecting exhaled gas from several breaths in a short period of time, reducing the animal's discomfort during gas collection. The gas collection assembly uses independent inhalation and exhalation channels to ensure smooth inhalation and the output of exhaled gas through a collection port. A gas collection bag connected to the collection port continuously collects the cattle's exhaled gas over several breaths. The airbag assembly seals the gap between the outer walls of the inhalation and exhalation channels and the nostrils, accurately collecting the cattle's exhaled gas and preventing the collection of interfering gases. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present disclosure includes accompanying drawings, which should be considered as 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 disclosure will be more fully understood through the following detailed description in conjunction with the accompanying drawings. Among them:

[0025] Figure 1 This is a diagram showing the usage of a device for quickly collecting short-term respiration of cattle according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic structural diagram of an airbag exhaust state of a short-term respiratory rapid collection device for cattle according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic structural diagram of an airbag inflated state of a device for rapid short-term breathing collection for cattle according to an embodiment of the present invention;

[0028] Figure 4 2 is a schematic diagram of the internal structure of a distal connecting arm of a device for rapid short-term breathing acquisition of cattle according to an embodiment of the present invention, in an inflated state of an air bag;

[0029] Figure 5 yes Figure 4 A partial enlarged view of point A in the middle;

[0030] Figure 6 2. It is a schematic diagram of the internal structure of a distal connecting arm of a device for rapid short-term breathing acquisition of cattle in a deflated state according to an embodiment of the present invention;

[0031] Figure 7 yes Figure 6 A partial enlarged view of point B in the middle;

[0032] Figure 8 yes Figure 7 A partial enlarged view of point C in the middle;

[0033] Figure 9 2 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;

[0034] 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;

[0035] Figure 11 1 is a schematic diagram of a reversing assembly of a device for quickly collecting short-term respiration of cattle according to an embodiment of the present invention;

[0036] Figure 12is 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;

[0037] 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;

[0038] Among them: inhalation channel 11, inhalation port 111, air inlet 112, exhalation channel 12, exhalation port 121, collection port 122, inhalation one-way valve 13, exhalation one-way valve 14, annular plate 15, valve core plate 16, torsion spring 17, retraction area 20, nasal airbag 21, distal connecting arm 22, separator 23, nose clip 24, fitting part 25, protrusion 26, proximal connecting arm 27, pressure sensor 28, mouth airbag 29, opening and closing drive 31, worm 32, first input gear 3 3. First output gear 34, second input gear 35, intermediate gear 36, second output gear 37, output shaft 38, handle 40, reversing input gear 51, reversing screw 52, reversing gear 53, annular connector 54, forward ratchet mechanism 55, reverse ratchet mechanism 56, reversing valve 57, reversing shaft 61, reversing elastic member 62, pawl 63, rotation limiter 64, air pump 70, first variable interface 71, second variable interface 72, fixed interface 73, and tensioning rod 80. DETAILED DESCRIPTION

[0039] The technical solutions of the present invention are further described in detail below through examples and in conjunction with the accompanying drawings, but the present invention is not limited to the following examples.

[0040] Monitoring the composition of cattle's exhaled gas is closely linked to their health. Carbon dioxide (CO2), a key indicator of energy metabolism and respiratory function, reflects the digestive and respiratory systems and overall metabolic status of cattle. As ruminants, microbial fermentation in the rumen (primary stomach) of cattle produces large amounts of gas, of which CO2 is a major component, accounting for approximately 30-50% of rumen gas. Abnormal changes in CO2 concentration may indicate rumen acidosis. When cattle consume excessive amounts of easily fermentable carbohydrates from concentrate feed, lactic acid accumulates in the rumen, lowering the pH. This inhibits the activity of CO2-producing microorganisms and reduces CO2 production. Abnormal changes in CO2 concentration may also be associated with rumen stagnation. When digestive function is weakened, rumen microbial activity decreases, leading to a significant drop in CO2 production. This indicates inefficient digestion or metabolic disorders, necessitating investigation of feed quality or infection, such as parasites. The CO2 content in cattle's exhaled gas is a barometer of their health, encompassing digestion, respiration, metabolism, and stress. By monitoring CO2 in real time, farmers can detect diseases early, optimize feed management, and support precision farming.

[0041] Existing cattle exhaled gas collection devices are suitable for collecting cattle exhaled gas for a long time. Cows need to wear the collection device for a long time, usually for several days. Wearing the gas collection device on the mouth and nose for a long time may cause discomfort and lead to reduced compliance.

[0042] In order to solve the above problems, the present invention aims to provide a short-term breathing rapid collection device for cattle, which is used to quickly collect the exhaled gas from several breaths of cattle in a short period of time; the collection device comprises:

[0043] A gas collection assembly, comprising an inhalation channel 11 for conveying inhaled gas from the cow, an exhalation channel 12 for conveying exhaled gas from 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 air inlet 112 and a collection port 122 respectively arranged at the proximal 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 gas from the air inlet 112 to the inhalation port 111 through the inhalation channel 11; the exhalation one-way valve 14 restricts the one-way flow of gas from the exhalation port 121 to the collection port 122 through the exhalation channel 12;

[0044] The airbag assembly includes a nasal airbag 21 arranged between the proximal and distal ends 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 the nasal airbag 21 can block the gap between the outer walls of the inhalation channel 11 and the exhalation channel 12 and the nostrils after being inflated.

[0045] In this embodiment, Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 As shown, the inhalation channel 11 and the exhalation channel 12 are two parallel and independent pipes, and the inhalation channel 11 and the exhalation channel 12 respectively include a proximal end and a distal end. When collecting the exhaled gas of the cow, the proximal end is outside the cow's body and the distal end extends into the cow's nasal cavity. After the airbag assembly is inflated, it can block the cow's nostrils, and the inhalation channel 11 and the channel pass through the airbag assembly. Therefore, after the airbag assembly is inflated, the cow's breathing is carried out through the gas collection assembly. Specifically:

[0046] When the cow inhales, the inhalation generates negative pressure, which opens the inhalation one-way valve 13. The outside air flows into the inhalation channel 11 through the air inlet 112, and then outputs the inhalation channel 11 through the inhalation port 111 and enters the cow's nasal cavity. At this time, the negative pressure generated by the inhalation keeps the exhalation one-way valve 14 closed, and the gas outside the collection port 122 cannot flow back to the exhalation port 121 through the exhalation channel 12.

[0047] When the cow exhales, the positive pressure generated by the exhalation opens the exhalation check valve 14, allowing the exhaled gas to flow into the exhalation channel 12 through the exhalation port 121 and then out of the exhalation channel 12 through the collection port 122, where it is collected by a gas collection container connected to the outside of the collection port 122. At this point, the positive pressure generated by the exhalation keeps the inhalation check valve 13 closed, preventing the exhaled gas from flowing back through the inhalation channel 11 to the inlet port 112.

[0048] In some embodiments, the gas collection container can be a deflated gas bag. The cow exhales to expand the gas bag, and the cow breathes several times to collect enough gas in the gas bag. The gas bag is detachably connected to the collection port 122, such as by threads or snaps.

[0049] In some embodiments, as Figure 8 As shown, the exhalation one-way valve 14 and the inhalation one-way valve 13 each 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 maintain contact with the annular plate 15 in the absence of external force.

[0050] 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.

[0051] 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 around the hinge part in the direction away from the annular plate 15. 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.

[0052] 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 maintain contact with the annular plate 15 , and gas cannot pass through the annular plate 15 .

[0053] In some embodiments, the inhalation one-way valve 13 and the exhalation one-way valve 14 are arranged at the distal ends of the inhalation channel 11 and the exhalation channel 12, with the valve core plate 16 of the inhalation one-way valve 13 facing the inside of the inhalation channel 11 and the valve core plate 16 of the exhalation one-way valve 14 facing the outside of the exhalation channel 12.

[0054] In some embodiments, the distal connecting arm 22 includes a bending region, and 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 and the distal ends of the connecting arms extend toward each other; the area between the bending region and the distal ends of the connecting arms is the adduction region 20, and the nasal airbag 21 is disposed outside the adduction region 20;

[0055] The nasal air bag 21 in the inflated state is as follows Figure 1、 Figure 3 、 Figure 4 as well as Figure 5 As shown, after the nasal airbag 21 is inflated, it is simultaneously expanded toward the inner and outer sides of the retracted area 20 of the distal connecting arm 22. The direction of expansion toward the inner side of the retracted area 20 is the first expansion direction, and the direction of expansion toward the outer side of the retracted area 20 is the second expansion direction. The first expansion directions of the nasal airbags 21 on the two connecting arms are opposite to each other to block the cow's nostril area. The second expansion direction of the nasal airbag 21 is toward the front of the collection device to block the cow's upper jaw area.

[0056] The nasal air bag 21 in the exhaust state is as follows Figure 2 、 Figure 6 、 Figure 7 As shown, after the nasal airbag 21 is deflated, it is sheathed on the outer side of the distal connecting arm 22. In some embodiments, the collection device further includes an air circuit control assembly, which connects the air pump 70 and the nasal airbag 21. The air circuit control assembly is connected to the output port of the air pump 70, and the air pump 70 is operated to inflate the nasal airbag 21. The air circuit control assembly can use the electromagnetic reversing valve 57 to connect the nasal airbag 21 to the external atmospheric pressure, at which point the nasal airbag 21 can be deflated.

[0057] In some embodiments, the air circuit control assembly 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, the air pump 70 operates to completely exhaust the nasal airbag 21. When inflation is required, the electromagnetic reversing valve 57 is controlled to operate to connect the output port of the air pump 70 to the nasal airbag 21 and the input port of the air pump 70 to the external atmospheric pressure. The air pump 70 operates to inflate the nasal airbag 21.

[0058] In this embodiment, the direction of deployment toward the inside of the retracted region 20 of the distal connecting arm 22 is a first deployment direction, which is used to block the area in front of the cow's nose. The direction of deployment toward the outside of the retracted region 20 of the distal connecting arm 22 is a second deployment direction, which is used to block the cow's upper jaw area.

[0059] Furthermore, the collection device also includes two symmetrically arranged distal connecting arms 22, each of which is provided with a partition 23. The partition 23 divides the internal space of the distal connecting arm 22 into two areas, namely the inhalation channel 11 and the exhalation channel 12. The two distal connecting arms 22 are arranged facing each other, and the inhalation port 111 and the exhalation port 121 are provided on the outer side of the distal connecting arm 22.

[0060] 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 be respectively extended into the two nostrils of the cow, and the nasal airbags 21 on the outside of the two distal connecting arms 22 can block the gap between the outer wall of the distal connecting arm 22 and the nostril after being inflated.

[0061] After the nasal airbag 21 is inflated, it expands toward the inner and outer sides of the inward-retracted area 20 at the same time. The direction of expansion toward the inner side of the inward-retracted area 20 is the first expansion direction, and the direction of expansion toward the outer side of the inward-retracted area 20 is the second expansion direction. The first expansion directions of the nasal airbags 21 on the two connecting arms are opposite to each other to block the cow's nostril area. The second expansion direction of the nasal airbag 21 is toward the front of the collection device to block the cow's upper jaw area.

[0062] In this embodiment, Figure 4 、 Figure 5 、 Figure 6 as well as Figure 7 As 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, which divides the inside of the circular tube into two areas, namely the inhalation channel 11 and the exhalation channel 12.

[0063] The two distal connecting arms 22 are positioned facing each other, with the inhalation port 111 and the exhalation port 121 located on the outer side of the distal connecting arms 22. The inner side of the distal connecting arm 22 is the side of the distal connecting arm 22 that is closest to the other distal connecting arm 22, while the outer side of the distal connecting arm 22 is the side of the distal connecting arm 22 that is away from the other distal connecting arm. The distal ends of the two distal connecting arms 22 are capable of extending into the cow's nostrils, respectively. When inflated, the nasal airbags 21 on the outer sides of the two distal connecting arms 22 can block the gap between the outer wall of the distal connecting arm 22 and the nostrils.

[0064] 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 degree of ductility. After inflation, it can first expand into a prefabricated shape. Continuing to inflate can allow it to evenly extend outward on the basis of the prefabricated shape, ensuring that the nasal airbag 21 fits the cow's nose.

[0065] Furthermore, the nasal airbag 21 is ring-shaped, and the part connected to the distal connecting part is the fixed part, and the extended part can be extended in the first expansion direction and the second expansion direction after inflation; a tensioning rod 80 is provided inside the nasal airbag 21, and the tensioning rod 80 connects the fixed part and the extended part in the second expansion direction; after the nasal airbag 21 is inflated, the tensioning rod 80 is in an elongated state, and after the nasal airbag 21 is deflated, the tensioning rod 80 can pull back the extended part extending in the second expansion direction to prevent the nasal airbag 21 from blocking the inhalation port 111 and the exhalation port 121.

[0066] In this embodiment, the fixed portion of the nasal airbag 21 can be bonded to the outer wall of the distal connection portion, while the extended portion is capable of extending in both the first and second deployment directions after inflation. The tie rod 80 is made of an elastic material, with one end of the tie rod 80 connected to the interior of the fixed portion and the other end connected to the interior of the extended portion extending in the second deployment direction. After inflation, the second deployment direction extends toward the inhalation port 111 and the exhalation port 121. After inflation, a gap exists between the nasal airbag 21 and the inhalation port 111 and the exhalation port 121. The tie rod 80 is used to pull the nasal airbag 21 back near the inhalation port 111 and the exhalation port 121 immediately after deflation, avoiding obstruction of the inhalation port 111 and the exhalation port 121. During inflation, the tie rod 80 is stretched and tends to shorten. After deflation, the tie rod 80 shortens, pulling the nasal airbag 21 back.

[0067] Furthermore, a nose clip 24 is provided at the distal end of the distal connecting arm 22, and the nose clips 24 of the two distal connecting arms 22 are arranged facing each other. Flexible fitting parts 25 are provided on the opposite surfaces of the nose clips 24 of the two distal connecting arms 22, and the fitting parts 25 are used to contact the nasal septum inside the cow's nasal cavity; the nose clips 24 of the two connecting arms respectively clamp the nasal septum from both sides of the nasal septum, thereby fixing the relative position of the collection device and the cow's nasal cavity.

[0068] In this embodiment, Figure 5 As shown, the fitting portion 25 of the nose clip 24 is made of soft material and is used to fit the nasal septum inside the cow's nasal cavity to reduce the discomfort caused to the cow when collecting exhaled air.

[0069] In some embodiments, the nose clip 24 is provided with a plurality of protrusions 26 . When the protrusions 26 are pulled by an external force, they contact the nasal cavity of the cow, causing discomfort to the cow, thereby increasing the cow's compliance.

[0070] Furthermore, the airbag assembly also 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 .

[0071] 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, and the air pump 70 can inflate the nasal airbag 21 and the mouth airbag 29 simultaneously through the trachea;

[0072] The mouth airbag 29 includes a bottom airbag area for surrounding the cow's lower jaw after inflation and a mouth airbag area arranged in the area between the two connecting arms. After inflation, the mouth airbag 29 can form a semi-enclosed blockage on the cow's mouth, preventing the cow from exhaling gas through the mouth when the gas collection component collects the cow's exhaled gas.

[0073] like Figure 1 、 Figure 4As shown, the mouth airbag 29 is connected to the interior of the nasal airbag 21, and the nasal airbag 21 and the mouth airbag 29 are inflated and deflated simultaneously. The mouth airbag 29 is arranged between the nasal airbags 21 of the two distal connecting arms 22. The gas collection device of this embodiment includes two nasal airbags 21 and one mouth airbag 29. When inflated, the two nasal airbags 21 and the mouth airbag 29 can surround the area around the mouth. The two nasal airbags 21 block the area above the mouth, and the mouth airbag 29 blocks the area below the mouth, preventing the cow from exhaling through the mouth when the gas collection assembly collects the cow's exhaled gas.

[0074] Furthermore, the acquisition device also 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 assembly connecting the opening and closing driver 31 and the distal connecting arms 22; the opening and closing transmission assembly 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 assembly can drive the two distal connecting arms 22 to open or close synchronously.

[0075] In this embodiment, Figure 9 、 Figure 10 As shown, the opening and closing driver 31 is a motor, and a worm 32 is disposed on the motor's output shaft 38. The motor can drive the worm 32 to rotate. The collection device includes a handle 40, and the motor is disposed on the handle 40. The opening and closing transmission assembly includes a first transmission assembly and a second transmission assembly disposed on either side of the worm 32. The first transmission assembly and the second transmission assembly are respectively connected to the two distal connecting arms 22, driving the two distal connecting arms 22 to simultaneously complete the opening and closing action.

[0076] The first transmission assembly includes a first input gear 33 mating with the worm gear 32 and a first output gear 34 meshing with the first input gear 33. The second transmission assembly includes a second input gear 35 mating with the worm gear 32, an intermediate gear 36 coaxially connected to the second input gear 35, and a second output gear 37 meshing with the intermediate gear 36. The two distal connecting arms 22 are connected to the first and second output gears 34, 37, respectively. The first and second output gears 34, 37 are mounted on an output shaft 38, which is mounted on the handle 40. The first and second output gears 34, 37 can rotate independently relative to the output shaft 38. The first and second output gears 34, 37 are positioned 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. The intermediate gear 36 is configured to accommodate the position of the second output gear 37.

[0077] The transmission ratio of the first input gear 33 and the first output gear 34 is consistent with the transmission ratio 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 at equal angles.

[0078] Furthermore, the collection device also 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 and the distal connecting arm 22 are hinged, and the hinged part of the proximal connecting arm 27 and the distal connecting arm 22 is provided with a pressure sensor 28, which is used to detect the contact force between the proximal connecting arm 27 and the distal connecting arm 22.

[0079] In this embodiment, the collection device includes two proximal connecting arms 27, which are connected to a first output gear 34 and a second output gear 37, respectively. The proximal connecting arms 27 and the distal connecting arm 22 are hinged, and a pressure sensor 28 is provided at the hinged portion. The proximal connecting arms 27 can push the distal connecting arm 22 to open and close synchronously. When the proximal connecting arms 27 drive the distal connecting arm 22 to close, they squeeze the pressure sensor 28. The greater the contact force, the greater the pressure applied to the pressure sensor 28. The pressure sensor 28 can detect the squeezing force on the cow's nose when clamping it. When the pressure sensor 28 detects that the pressure reaches a preset value, it stops the opening and closing actuator 31, completing the clamping action and preventing damage to the cow.

[0080] In some embodiments, as Figure 10 、 Figure 11 As shown, the first output gear 34 and the second output gear 37 are sleeved on the output shaft 38, and 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 in opposite directions at equal angles.

[0081] Furthermore, the collection device also includes a handle 40, which is internally provided with an energy storage device for storing electrical energy, a controller for controlling the opening and closing actuator 31 and the air pump 70; a control button is provided on the surface of the handle 40, and the control button is connected to the controller, and the control button is used to control the inflation and deflation of the air pump 70 and the opening and closing actuator 31 to drive the distal connecting arm 22 to open or close;

[0082] 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 opening and closing driver 31 is controlled to stop working.

[0083] In this embodiment, the energy storage device can be a battery, and the handle 40 is also provided with a charging port. The handle 40 is internally provided with an energy storage device for storing electrical energy, a controller for controlling the opening and closing actuator 31, and the air pump 70. The control button is used to control the inflation and deflation of the air pump 70 and the opening and closing actuator 31 to drive the distal connecting arm 22 to open or close.

[0084] In some embodiments, as Figure 11 、 Figure 12 、 Figure 13 As shown, the handle 40 is also provided with an inflation reversing assembly. When the distal connecting arm 22 is closed, the output port of the air pump 70 is connected to the nasal air bag 21, and the air pump 70 is operated to inflate the air bag. When the distal connecting arm 22 is open, the input port of the air pump 70 is connected to the nasal air bag 21, and the air pump 70 is operated to discharge the air from the air bag.

[0085] Specifically, the inflation reversing assembly includes a reversing input gear 51 connected to the first input gear 33, a reversing screw 52 disposed at the bottom of the reversing input gear 51, a reversing gear 53 disposed outside the reversing screw 52 and threadedly engaged with the reversing screw 52, an annular connector 54 sleeved on the outside of the reversing gear 53, a forward ratchet mechanism 55 and a reverse ratchet mechanism 56 disposed on the annular connector 54, and a reversing valve 57 connected to the annular connector 54. The forward ratchet mechanism 55 and the reverse ratchet mechanism 56 are respectively disposed on opposite sides of the annular connector 54, at different axial positions of the annular connector 54, and the reversing gear 53 can engage with the forward ratchet mechanism 55 or the reverse ratchet mechanism 56, respectively.

[0086] The forward ratchet mechanism 55 and the reverse ratchet mechanism 56 respectively include a reversing shaft 61 hingedly connected to the annular connector 54, a pawl 63 hingedly connected to the reversing gear 53, and a reversing elastic member 62 that maintains the pawl 63 in meshing position with the reversing gear 53. The annular connector 54 is movably connected to the handle 40 and can rotate relative to the handle 40. A rotation limiter 64 is provided on the handle 40 to limit the rotation angle of the annular connector 54. Forward rotation of 180 degrees indicates the inflation state, and reverse rotation of 180 degrees indicates the deflation state. In the inflation state, the annular connector 54 can only rotate in the reverse direction, and in the deflation state, the annular connector 54 can only rotate in the forward direction.

[0087] When the opening and closing driver 31 rotates, it can cause the worm 32 to rotate forward or reverse, thereby driving the first input gear 33 and the reversing input gear 51 to rotate forward or reverse. The first input gear 33 can drive the reversing screw 52 to rotate synchronously, thereby driving the reversing gear 53 to rotate on the reversing screw 52. The reversing gear 53 can rotate on the reversing screw 52 to the upper limit or lower limit.

[0088] When the reversing gear 53 rotates forward, the reverse pawl 63 is engaged in the gear groove of the ring gear, while the forward pawl 63 is no longer 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. Simultaneously, the reversing gear 53 moves relative to the annular connector 54 in the axial direction. The forward pawl 63 moves into the gear groove, while the reverse pawl 63 is no longer in the gear groove. The reversing gear 53, via the forward pawl 63, drives the annular connector 54 to rotate to the exhaust state and contacts the rotation limiter 64. The forward pawl 63 then slips, causing the reversing gear 53 to continue rotating without being able to drive the annular connector 54 to rotate.

[0089] Conversely, when the reversing gear 53 rotates in the reverse direction, the forward pawl 63 is stuck in the gear groove of the ring gear, while 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 and the reversing screw 52 rotate relative to each other, and the reversing gear 53 simultaneously moves relative to the annular connector 54 in the axial direction. The reverse pawl 63 moves into the gear groove, while the forward pawl 63 is not in the gear groove. The reversing gear 53 drives the annular connector 54 to rotate to the inflated state through the reverse pawl 63 and contacts the rotation limiter 64. Then, the reverse pawl 63 slips, and the reversing gear 53 continues to rotate without being able to drive the annular connector 54 to rotate.

[0090] The reversing valve 57 is as follows Figure 12 As shown, a first variable interface 71 and a second variable interface 72 are provided at both ends of the side of the reversing valve 57. The input and output ports of the air pump 70 are connected to the two sides of the reversing valve 57, respectively. A fixed interface 73 is provided at the bottom of the reversing valve 57. The first variable interface 71 and the fixed interface 73 are connected inside the reversing valve 57, and the reversing valve 57 rotates with 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.

[0091] In the inflated 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 .

[0092] 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 air bag 21.

[0093] 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 above embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the spirit and scope of the present invention. That is to say, those skilled in the art can make various changes and improvements to the present invention in form and detail, and these are all considered to fall within the scope of protection of the present invention. The choice of terms used in this article is intended to best explain the principles of the various embodiments, practical applications or improvements to the technology in the market, or to enable those skilled in the art to understand the various embodiments disclosed herein.

Claims

1. A short-term breathing rapid sampling device for cattle, used to quickly collect the gas exhaled by cattle during several breaths in a short period of time; characterized by: The collection device includes: A gas collection assembly, comprising an inhalation channel (11) for conveying inhaled gas of a cow, an exhalation channel (12) for conveying exhaled gas of a 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 air inlet (112) and a collection port (122) respectively arranged at the proximal 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 gas passing through the inhalation channel (11) from the air inlet (112) to the inhalation port (111); and the exhalation one-way valve (14) restricts the one-way flow of gas passing through the exhalation channel (12) from the exhalation port (121) to the collection port (122); An airbag assembly, the airbag assembly comprising 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 nostril, and the nasal airbag (21) can block the gap between the outer wall of the inhalation channel (11) and the exhalation channel (12) and the nostril portion after being inflated; The collection device further comprises two symmetrically arranged distal connecting arms (22), wherein a partition (23) is arranged inside the distal connecting arm (22), and the partition (23) divides the internal space of the distal connecting arm (22) into two areas, the two areas being the inhalation channel (11) and the exhalation channel (12); 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 of the outer sides of the distal connecting arms (22).

2. The device for quickly collecting short-term respiration of cattle according to claim 1, characterized in that: 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 be respectively extended into the two nostrils of the cow, and the nasal airbags (21) outside the two distal connecting arms (22) can block the gap between the outer wall of the distal connecting arm (22) and the nostril after being inflated.

3. The device for quickly collecting short-term breathing data of cattle according to claim 2, characterized in that: 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 to form an outward-expanding shape, and the bending regions of the two distal connecting arms (22) and the distal ends of the connecting arms extend in a direction toward each other; the region between the bending region and the distal ends of the connecting arms is the adduction region (20), and the nasal airbag (21) is arranged outside the adduction region (20); After the nasal airbag (21) is inflated, it is simultaneously expanded toward the inner side and the outer side of the inward-adducted area (20), the direction of expansion toward the inner side of the inward-adducted area (20) is the first expansion direction, and the direction of expansion toward the outer side of the inward-adducted area (20) is the second expansion direction; the first expansion directions of the nasal airbags (21) on the two connecting arms are opposite to each other, so as to block the cow's nostril area; the second expansion direction of the nasal airbag (21) is toward the front of the collection device, so as to block the cow's upper jaw area.

4. The device for quickly collecting short-term respiration of cattle according to claim 3, characterized in that: The nasal air bag (21) is annular, and the portion connected to the distal connection portion is a fixed portion, and the portion capable of extending in the first expansion direction and the second expansion direction after inflation is an extension portion; a tensioning rod (80) is provided inside the nasal air bag (21), and the tensioning rod (80) connects the fixed portion and the extension portion in the second expansion direction; after the nasal air bag (21) is inflated, the tensioning rod (80) is in an elongated state, and after the nasal air bag (21) is deflated, the tensioning rod (80) can pull back the extension portion extending in the second expansion direction, thereby preventing the nasal air bag (21) from blocking the inhalation port (111) and the exhalation port (121).

5. The device for quickly collecting short-term respiration of cattle according to claim 2, characterized in that: The distal end of the distal connecting arm (22) is provided with a nose clip (24), the nose clips (24) of the two distal connecting arms (22) are arranged facing each other, and the opposite surfaces of the nose clips (24) of the two distal connecting arms (22) are provided with a flexible fitting portion (25), and the fitting portion (25) is used to contact the nasal septum inside the bovine nasal cavity; the nose clips (24) of the two connecting arms respectively clamp the nasal septum from both sides of the nasal septum, so as to achieve the relative position fixation of the collection device and the bovine nasal cavity.

6. The device for quickly collecting short-term respiration of cattle according to claim 2, characterized in that: The airbag assembly further comprises 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 device for quickly collecting short-term respiration of cattle according to claim 6, characterized in that: The two ends of the mouth airbag (29) are respectively connected to the nasal airbags (21) on the two distal connecting arms (22), and the air 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 cow's lower jaw after inflation and a mouth airbag area arranged in the area between the two connecting arms. After inflation, the mouth airbag (29) can form a semi-enclosed blockage on the cow's mouth, preventing the cow from exhaling gas through the mouth when the gas collection component collects the cow's exhaled gas.

8. The device for quickly collecting short-term breathing data of cattle according to claim 6, characterized in that: The acquisition device further comprises an opening and closing driver (31) for driving the two distal connecting arms (22) to open and close, and an opening and closing transmission assembly connecting the opening and closing driver (31) and the distal connecting arms (22); the opening and closing transmission assembly 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 assembly can drive the two distal connecting arms (22) to open or close synchronously.

9. The device for quickly collecting short-term respiration of cattle according to claim 8, characterized in that: The acquisition device further includes a proximal connecting arm (27), the opening and closing transmission assembly is connected to the distal connecting arm (22) via the proximal connecting arm (27), the proximal connecting arm (27) and the distal connecting arm (22) are hinged, and a pressure sensor (28) is provided at the hinged portion between the proximal connecting arm (27) and the distal connecting arm (22), and the pressure sensor (28) is used to detect the contact force between the proximal connecting arm (27) and the distal connecting arm (22).

10. The device for quickly collecting short-term respiration of cattle according to claim 9, characterized in that: The collection device further comprises a handle (40), wherein an energy storage device for storing electrical energy, a controller for controlling an opening and closing driver (31) and an air pump (70) are provided inside the handle (40); a control button is provided on the surface of the handle (40), the control button being connected to the controller, and the control button is used to control the inflation and exhaust of the air pump (70) and the opening and closing driver (31) to drive the distal connecting arm (22) to open or close; The pressure sensor (28) is connected to a 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 opening and closing driver (31) is controlled to stop working.

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