Rumen fluid collection device for sheep

Abstract

The present invention relates to the field of animal husbandry medical equipment, and specifically to a rumen fluid collection device for sheep, comprising a collection mechanism, a connecting tube and a suction mechanism, wherein the collection mechanism and the suction mechanism are connected via a connecting tube, and the collection mechanism comprises a collection tube, a support tube, a limiter and a flip tube. The collection tube is a rubber hose, and the collection tube has an inner layer and an outer layer, and a flip space is defined between the inner layer and the outer layer. Both ends of the flip tube along the second direction are abutted in the flip space. A rumen fluid collection device for sheep is provided with a collection mechanism, a connecting tube and a suction mechanism. If the contents in the rumen block the inner layer of the collection tube, the collection mechanism is switched to an unlocked state, the contents of the inner layer of the collection tube are turned out, and the blocked inner layer of the collection tube is cleaned, so that the suction mechanism can continue to suck gastric fluid, which will not affect the normal operation of the rumen fluid collection device for sheep, thereby ensuring the collection efficiency.

Description

Technical Field

[0001] The invention relates to the field of animal husbandry medical equipment, and in particular to a rumen fluid collection device for sheep. Background Art

[0002] The rumen of sheep is an important and iconic organ of ruminants. Its main functions include fermenting feed, digesting cellulose and protein, and playing an important role in metabolism and immune barrier. Rumen fluid collection is an important method for studying the digestive system of ruminants. By collecting rumen fluid from sheep, we can gain a deeper understanding of their digestive physiology, optimize feeding management, monitor health status, and support related scientific research and drug development.

[0003] The traditional method of collecting rumen fluid is to install a fistula in the sheep's rumen through surgery. This method not only requires professional operation and technology during collection, but also requires meticulous care after collection. If the care or operation is improper, it can easily cause indigestion in the animal, affect the health of the sheep, and even cause the death of the sheep.

[0004] At present, the main method for collecting rumen fluid is to insert a collection tube from the animal's mouth into the rumen. Chinese patent CN213821504U discloses a rumen fluid collection device for sheep, which uses a manual negative pressure device to vacuum the collection bottle and then absorb the gastric fluid in the sheep's rumen. The gastric fluid outlet tube enters the rumen of the sheep through the sheep's mouth, which does not damage the sheep and reduces the difficulty of collection. However, when collecting gastric fluid in this patent, the contents in the rumen easily cause the collection device to be blocked, affecting the normal collection of gastric fluid and reducing the collection efficiency. Summary of the invention

[0005] The invention provides a rumen fluid collection device for sheep, so as to solve the problem that the existing collection device is easily blocked by the contents in the rumen, thus affecting the normal collection of gastric fluid and reducing the collection efficiency.

[0006] A rumen fluid collection device for sheep of the present invention adopts the following technical scheme: a rumen fluid collection device for sheep, comprising a collection mechanism, a connecting tube and a suction mechanism, the collection mechanism and the suction mechanism are connected by a connecting tube, and the suction mechanism is used to suck gastric fluid; the collection mechanism comprises a collection tube, a supporting tube, a limiting member and a flipping tube; the collection tube is a rubber hose, the collection tube has an inner layer and an outer layer, the inner layer and the outer layer are arranged in sequence in a first direction, the first direction is the radial direction of the collection tube, and the inner layer is located on the inner side of the outer layer, and the side close to the central axis of the collection tube in the first direction is called the inner side; the two ends of the inner layer along the second direction are respectively called the top end and the bottom end, the second direction is the axial direction of the collection tube, the top end is located on the side of the bottom end away from the connecting tube in the second direction, and the two ends of the outer layer along the second direction are respectively called the head end and the tail end, and the head end is located on the inner side of the outer layer ... The tail end is on the side away from the connecting tube in the second direction, and the top end is connected to the head end; the support tube is coaxially arranged with the collection tube, the support tube is fixedly connected and communicated with the connecting tube, and the support tube is located on the inner side of the outer layer of the collection tube; the two ends of the support tube along the second direction are respectively connected with the bottom end and the tail end, and a turning space is defined between the inner layer and the outer layer; the turning tube is coaxially arranged with the collection tube, the two ends of the turning tube along the second direction are both abutted in the turning space, the support tube is located on the inner side of the turning tube, and the support tube can move in the second direction in the turning space; the limiter is installed on the collection mechanism; the collection mechanism has a locked state and an unlocked state. When in the locked state, the limiter limits the support tube from moving in the second direction in the turning space. When in the unlocked state, the limiter allows the support tube to move in the second direction in the turning space. In the initial state, the collection mechanism is in a locked state.

[0007] Furthermore, the limiting member includes a first elastic member and a card block; the turning cylinder and the supporting cylinder are connected by the first elastic member, the first elastic member is arranged along the second direction, and the first elastic member always has the tendency to urge the supporting cylinder to move along the second direction toward the side close to the turning cylinder; a card block is installed on the supporting cylinder, the card block is made of rubber material, and the card block can move along the first direction on the supporting cylinder, and a card slot for cooperating with the card block is provided on the turning cylinder. When the collecting mechanism is in a locked state, the card block is connected to the card slot and limits the supporting cylinder from moving along the second direction away from the connecting tube. When the collecting mechanism is in an unlocked state, the card block is disengaged from the card slot.

[0008] Furthermore, the suction mechanism can provide negative pressure to the inner layer of the collection tube through the connecting tube. The clamping block includes a deformation plate and a wedge block. The deformation plate is installed on the supporting tube. The wedge block is installed on the deformation plate and is located on the side of the deformation plate close to the flip tube in the first direction. In the initial state, the wedge block is clamped in the clamping groove.

[0009] Further, a plurality of rollers are provided at both ends of the turning cylinder along the second direction, the plurality of rollers are evenly distributed on the turning cylinder around the second direction, and the turning cylinder abuts against the turning space through the rollers.

[0010] Furthermore, the inner layer of the collection tube is evenly distributed with a plurality of inverted blocks, and the inverted blocks are made of rubber material.

[0011] Furthermore, the inverted block is arranged at an angle, and has a first end and a second end. The first end is fixedly connected to the flip cylinder, and the second end is located on a side of the inverted block away from the connecting tube in the second direction, and the second end is located on a side of the first end close to the central axis of the collection tube in the first direction.

[0012] Furthermore, the suction mechanism includes a collecting bottle and a piston cylinder. The piston cylinder is connected to the collecting bottle through a hose, and a first one-way valve is provided on the hose, so that gas can only enter the piston cylinder from the collecting bottle. The connecting tube is connected to the collecting bottle, and a second one-way valve is provided on the piston cylinder, so that gas can only be discharged from the piston cylinder.

[0013] Furthermore, the piston cylinder includes a cylinder body, a piston and a handle, the second one-way valve is arranged on the cylinder body, the piston passes through the cylinder body and is slidingly sealed with the inner wall of the cylinder body, and the piston and the cylinder body are connected by a second elastic member, which is a spring; the handle is fixedly connected to the cylinder body.

[0014] Furthermore, a connecting groove is provided on the flip cylinder, a connecting pin is arranged in the connecting groove, an ear plate is provided on the support cylinder, and the first elastic member is connected between the ear plate and the connecting pin.

[0015] Furthermore, the first elastic member is a tension spring, and the tension spring is stretched in an initial state.

[0016] The beneficial effects of the present invention are as follows: a rumen fluid collection device for sheep of the present invention is provided with a collection mechanism, a connecting tube and a suction mechanism. When in use, the collection tube is inserted into the rumen of the sheep through the sheep's mouth, and then the suction mechanism is started to make the gastric fluid flow to the connecting tube after passing through the inner layer of the collection tube and the support tube. At this time, the collection mechanism is in a locked state, limiting the support tube from moving in the second direction in the flipping space. If the contents in the rumen block the inner layer of the collection tube, the collection mechanism switches to the unlocked state, and the support tube moves in the flipping space along the second direction to the side away from the connecting tube. Since both ends of the flipping tube in the second direction are abutted in the flipping space, and the collection tube is a rubber hose, when the support tube moves in the flipping space, the support tube will cause the tail end of the outer layer to move in the second direction to the side close to the connecting tube, and then pull the head end of the outer layer through the tail end of the outer layer, and simultaneously pull the top end of the inner layer to flip the inner layer toward the outer layer, turn the contents of the inner layer of the collection tube out, and clean the blocked inner layer of the collection tube, so that the suction mechanism can continue to suck gastric juice, which will not affect the normal operation of the rumen fluid collection device for sheep, thereby ensuring the collection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of a rumen fluid collection device for sheep of the present invention;

[0019] Figure 2 It is a schematic diagram of a collection mechanism and a connecting pipe of an embodiment of a rumen fluid collection device for sheep of the present invention;

[0020] Figure 3 It is a schematic diagram of a collection mechanism of an embodiment of a rumen fluid collection device for sheep of the present invention;

[0021] Figure 4 for Figure 3 Sectional view along AA;

[0022] Figure 5 for Figure 4 The enlarged view of point B in the middle;

[0023] Figure 6 It is a schematic diagram of a collection mechanism of an embodiment of a rumen fluid collection device for sheep of the present invention when it is in an unlocked state;

[0024] Figure 7 This is a schematic diagram of a collection tube of an embodiment of a rumen fluid collection device for sheep according to the present invention after the inner layer is turned over;

[0025] Figure 8 It is a schematic diagram of a turning cylinder of an embodiment of a rumen fluid collection device for sheep of the present invention;

[0026] Fig. 9 The present invention is a schematic diagram of a suction mechanism of an embodiment of a rumen fluid collection device for sheep.

[0027] In the figure: 100, collecting mechanism; 110, collecting tube; 111, inner layer; 112, outer layer; 113, inverted block; 120, supporting tube; 121, ear plate; 130, flipping tube; 131, connecting groove; 132, connecting pin; 133, roller; 140, first elastic member; 150, clamping block; 151, deformation plate; 152, wedge block; 160, clamping groove; 200, connecting tube; 300, suction mechanism; 310, collecting bottle; 320, piston cylinder; 321, cylinder body; 322, piston; 323, handle. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] An embodiment of a rumen fluid collection device for sheep of the present invention is as follows Figures 1 to 9 shown.

[0030] A rumen fluid collection device for sheep includes a collection mechanism 100, a connecting tube 200 and a suction mechanism 300. The collection mechanism 100 and the suction mechanism 300 are connected via the connecting tube 200, and the suction mechanism 300 is used to suck gastric fluid. The collection mechanism 100 includes a collection tube 110, a support tube 120, a stopper and a flip tube 130. The collection tube 110 is a rubber hose, and the collection tube 110 has an inner layer 111 and an outer layer 112. The inner layer 111 and the outer layer 112 are arranged in sequence in a first direction, and the first direction is a radial direction of the collection tube 110, and the inner layer 111 is located inside the outer layer 112. The side close to the central axis of the collection tube 110 in the first direction is called the inner side.

[0031] The two ends of the inner layer 111 along the second direction are respectively referred to as the top end and the bottom end. The second direction is the axial direction of the collection tube 110. The top end is located on the side of the bottom end away from the connecting tube 200 in the second direction. The two ends of the outer layer 112 along the second direction are respectively referred to as the head end and the tail end. The head end is located on the side of the tail end away from the connecting tube 200 in the second direction, and the top end is connected to the head end. The support tube 120 is coaxially arranged with the collection tube 110. The support tube 120 is fixedly connected and connected with the connecting tube 200. The support tube 120 is located on the inner side of the collection tube 110. The two ends of the support tube 120 along the second direction are respectively connected to the bottom end and the tail end. A turning space is defined between the inner layer 111 and the outer layer 112. The turning tube 130 is coaxially arranged with the collection tube 110. The two ends of the turning tube 130 along the second direction are both abutted in the turning space. The support tube 120 is located inside the turning tube 130, and the support tube 120 can move in the second direction in the turning space.

[0032] The limiter is installed on the collection mechanism 100; the collection mechanism 100 has a locked state and an unlocked state. When in the locked state, the limiter restricts the support tube 120 from moving along the second direction in the flipping space. When in the unlocked state, the limiter allows the support tube 120 to move along the second direction in the flipping space. In the initial state, the collection mechanism 100 is in a locked state.

[0033] In this embodiment, a collection mechanism 100, a connecting tube 200 and a suction mechanism 300 are provided. When in use, the collection tube 110 is inserted into the rumen of the sheep through the sheep's mouth, and then the suction mechanism 300 is started to allow the gastric juice to flow through the inner layer 111 of the collection tube 110 and the support tube 120 and then flow to the connecting tube 200. At this time, the collection mechanism 100 is in a locked state, restricting the support tube 120 from moving along the second direction in the flipping space. If the contents in the rumen block the inner layer 111 of the collection tube 110, the collection mechanism 100 switches to the unlocked state, and the support tube 120 moves in the flipping space along the second direction to the side away from the connecting tube 200. Since both ends of the flipping tube 130 in the second direction are abutted in the flipping space, and the collection tube 110 is a rubber hose, when the support tube 120 moves in the flipping space, the support tube 120 will cause the tail end of the outer layer 112 to move in the second direction to the side close to the connecting tube 200, and then pull the head end of the outer layer 112 through the tail end of the outer layer 112, and simultaneously pull the top end of the inner layer 111, so that the inner layer 111 is flipped toward the outer layer 112, and the contents of the inner layer 111 are turned out, and the blocked inner layer 111 of the collection tube 110 is cleaned, so that the suction mechanism 300 can continue to suck gastric juice, which will not affect the normal operation of the rumen fluid collection device for sheep, thereby ensuring the collection efficiency.

[0034] In this embodiment, the limiting member includes a first elastic member 140 and a clamping block 150. The turning cylinder 130 and the supporting cylinder 120 are connected via the first elastic member 140. The first elastic member 140 is arranged along the second direction, and the first elastic member 140 always has a tendency to cause the supporting cylinder 120 to move along the second direction toward the side close to the turning cylinder 130. Specifically, the first elastic member 140 is a tension spring, and the tension spring is stretched in the initial state.

[0035] A block 150 is installed on the support cylinder 120. The block 150 is made of rubber and can move along the first direction on the support cylinder 120. A slot 160 for cooperating with the block 150 is provided on the flip cylinder 130. When the collection mechanism 100 is in a locked state, the block 150 is engaged in the slot 160 and limits the support cylinder 120 from moving along the second direction away from the connecting tube 200, and allows the support cylinder 120 to move along the second direction toward the connecting tube 200. When the collection mechanism 100 is in an unlocked state, the block 150 is disengaged from the slot 160.

[0036] Specifically, a connecting groove 131 is provided on the turning cylinder 130 , a connecting pin 132 is provided in the connecting groove 131 , an ear plate 121 is provided on the supporting cylinder 120 , and the first elastic member 140 is connected between the ear plate 121 and the connecting pin 132 .

[0037] In this embodiment, the first elastic member 140 and the clamping block 150 are matched. In the initial state, the clamping block 150 is clamped in the clamping slot 160, and the first elastic member 140 is in a stretched state. At this time, the first elastic member 140 is restricted from resetting by the clamping block 150 and the clamping slot 160, that is, the support tube 120 is restricted from moving in the second direction. At this time, the collection mechanism 100 is in a locked state. When the inner layer 111 of the collection tube 110 is blocked, the clamping block 150 is disengaged from the clamping slot 160, the first elastic member 140 is reset and pulls the support tube 120 to move along the second direction to the side away from the connecting tube 200. At this time, the collection mechanism 100 is in an unlocked state.

[0038] In this embodiment, the suction mechanism 300 can provide negative pressure to the inner layer 111 of the collection tube 110 through the connecting tube 200. The clamping block 150 includes a deformation plate 151 and a wedge block 152. The deformation plate 151 is installed on the support tube 120. The wedge block 152 is installed on the deformation plate 151 and is located on the side of the deformation plate 151 close to the flip tube 130 in the first direction. In the initial state, the wedge block 152 is clamped in the clamping groove 160.

[0039] Specifically, a through slot is formed on the support tube 120 , and the deformation plate 151 is fixedly installed in the through slot.

[0040] In this embodiment, the suction mechanism 300 provides negative pressure to the inner layer 111 of the collection tube 110 to suck the gastric fluid in the rumen. When the inner layer 111 of the collection tube 110 is blocked, the negative pressure in the collection tube 110 acts on the deformation plate 151, causing the deformation plate 151 to deform inwardly along the first direction, and simultaneously driving the wedge block 152 to move inwardly along the first direction, so that the wedge block 152 is separated from the card slot 160, thereby enabling the collection mechanism 100 to switch from the locked state to the unlocked state. That is, from the attached Figure 5 The status shown switches to Figure 6 Under the effect of negative pressure, the inner layer 111 of the collection tube 110 will shrink inward, thereby having a certain squeezing effect on the contents and limiting the movement of the contents toward the side close to the connecting tube 200.

[0041] In this embodiment, a plurality of rollers 133 are disposed at both ends of the turning cylinder 130 along the second direction. The plurality of rollers 133 are evenly distributed on the turning cylinder 130 around the second direction. The turning cylinder 130 abuts against the turning space through the rollers 133 .

[0042] In this embodiment, by disposing a plurality of rollers 133 on both ends of the turning cylinder 130 along the second direction, the friction between the turning cylinder 130 and the turning space can be reduced, thereby making the collection tube 110 easier to move.

[0043] In this embodiment, the inner layer 111 of the collection tube 110 is evenly distributed with a plurality of inverted blocks 113 , and the inverted blocks 113 are made of rubber.

[0044] Specifically, the inverted block 113 is tilted and has a first end and a second end. The first end is fixedly connected to the flip cylinder 130, and the second end is located on a side of the inverted block 113 away from the connecting tube 200 in the second direction, and the second end is located on a side of the first end close to the central axis of the collection tube 110 in the first direction.

[0045] In this embodiment, a rubber inverted block 113 is provided. When in use, as the inner layer 111 of the collection tube 110 is turned over, the inverted block 113 will also turn outward to the outer layer 112 of the collection tube 110. For details, see the attached Figure 7 shown.

[0046] After use, when the collecting mechanism 100 needs to be taken out, the inverted block 113 will produce friction with the internal organs of the sheep, and when the operator takes out the collecting mechanism 100, the inverted block 113 will cause the head end of the outer layer 112 to move along the second direction away from the connecting tube 200 under the reaction of the friction force, and simultaneously push the top end of the inner layer 111 to rotate and reset the inner layer 111. In this process, the flip cylinder 130 and the support cylinder 120 move away from each other in the second direction, stretching the first elastic member 140, and after the collection tube 110 is reset, the wedge block 152 will be engaged with the slot 160 again.

[0047] In this embodiment, the suction mechanism 300 includes a collecting bottle 310 and a piston cylinder 320. The piston cylinder 320 is connected to the collecting bottle 310 through a hose, and a first one-way valve is provided on the hose, so that gas can only enter the piston cylinder 320 from the collecting bottle 310. The connecting tube 200 is connected to the collecting bottle 310, and a second one-way valve is provided on the piston cylinder 320, so that gas can only be discharged from the piston cylinder 320.

[0048] Specifically, the piston cylinder 320 includes a cylinder body 321, a piston 322 and a handle 323. The second one-way valve is arranged on the cylinder body 321. The piston 322 passes through the cylinder body 321 and is slidably sealed with the inner wall of the cylinder body 321. The piston 322 and the cylinder body 321 are connected by a second elastic member, which is a spring. The handle 323 is fixedly connected to the cylinder body 321 for easy manual operation. The cylinder body 321 is provided with an air inlet, which is connected to the collection bottle 310 through a hose.

[0049] In this embodiment, by providing a collecting bottle 310 and a piston cylinder 320, when in use, the operator only needs to pull the handle 323 to drive the piston 322 to extract the gas in the collecting bottle 310, so that the gastric juice can enter the collecting bottle 310 from the connecting tube 200 for collection.

[0050] In combination with the above embodiments, the specific working process is as follows:

[0051] When in use, the collection tube 110 is inserted into the rumen of the sheep through the sheep's mouth, and then the handle 323 is pulled to drive the piston 322 to extract the gas in the collection bottle 310, so that the gastric juice passes through the inner layer 111 of the collection tube 110 and the support tube 120 and then flows to the connecting tube 200, and finally enters the collection bottle 310 for collection.

[0052] At this time, the block 150 is locked in the slot 160, and the first elastic member 140 is in a stretched state. At this time, the first elastic member 140 is restricted from resetting by the cooperation between the block 150 and the slot 160, and the collecting mechanism 100 is in a locked state.

[0053] If the contents in the rumen block the inner layer 111 of the collection tube 110, the negative pressure in the collection tube 110 will act on the deformation plate 151, causing the deformation plate 151 to deform inwardly along the first direction, and simultaneously drive the wedge block 152 to move inwardly along the first direction, so that the wedge block 152 is separated from the slot 160, and the first elastic member 140 is reset and pulls the support tube 120 to move in the second direction away from the connecting tube 200. At this time, the collection mechanism 100 is in an unlocked state. That is, from the attachment Figure 5 The status shown switches to Figure 6 Status shown.

[0054] The support tube 120 will move in the flipping space along the second direction toward the side away from the connecting tube 200. Since both ends of the flipping tube 130 in the second direction are abutted in the flipping space, and the collecting tube 110 is a rubber hose, when the support tube 120 moves in the flipping space, the support tube 120 will cause the tail end of the outer layer 112 to move along the second direction toward the side close to the connecting tube 200, and then pull the head end of the outer layer 112 through the tail end of the outer layer 112, and simultaneously pull the top end of the inner layer 111, so that the inner layer 111 is flipped toward the outer layer 112, and the content of the inner layer 111 is turned out, and the inner layer 111 of the blocked collecting tube 110 is cleaned, so that the suction mechanism 300 can continue to suck gastric juice, which will not affect the normal operation of the rumen fluid collecting device for sheep, thereby ensuring the collection efficiency.

[0055] After use, when the collecting mechanism 100 needs to be taken out, the inverted block 113 will produce friction with the internal organs of the sheep, and when the operator takes out the collecting mechanism 100, the inverted block 113 will cause the head end of the outer layer 112 to move along the second direction away from the connecting tube 200 under the reaction of the friction force, and simultaneously push the top end of the inner layer 111 to rotate and reset the inner layer 111. In this process, the flip cylinder 130 and the support cylinder 120 move away from each other in the second direction, stretching the first elastic member 140, and after the collection tube 110 is reset, the wedge block 152 will be engaged with the slot 160 again.

[0056] In another possible embodiment, a plurality of the card slots 160 are provided, and the plurality of card slots 160 are arranged in parallel along the second direction on the turning cylinder 130 .

[0057] Furthermore, by providing a plurality of card slots 160, during use, as the inner layer 111 of the collection tube 110 is continuously turned toward the outer layer 112, before the first elastic member 140 is completely reset, if the inner layer 111 of the collection tube 110 has turned over and discharged the contents, the negative pressure in the collection tube 110 will no longer act on the deformation plate 151, and the deformation plate 151 will drive the wedge block 152 to be pushed outward along the first direction, and after the turning cylinder 130 and the support cylinder 120 move relative to each other in the second direction until the wedge block 152 can be engaged with the card slot 160 again, the turning cylinder 130 is again restricted from moving in the second direction, and then suction can be continued, and even if the inner layer 111 of the collection tube 110 is blocked again, before the first elastic member 140 is completely reset, the collection mechanism 100 can be switched between the locked state and the unlocked state again, thereby improving the use time of the rumen fluid collection device for sheep.

[0058] While the inverted block 113 rubs against the internal organs of the sheep, causing the inner layer 111 to rotate and return to its original position, the turning cylinder 130 and the supporting cylinder 120 move away from each other in the second direction, causing the slots 160 on the turning cylinder 130 to slide over the wedge blocks 152 in sequence in the second direction until the collection tube 110 is completely returned to its original position.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rumen fluid collection device for sheep, Features: The invention comprises a collecting mechanism, a connecting tube and a suction mechanism, wherein the collecting mechanism and the suction mechanism are connected via the connecting tube, and the suction mechanism is used for sucking gastric juice; the collecting mechanism comprises a collecting tube, a supporting tube, a limiting member and a flipping tube; the collecting tube is a rubber hose, and the collecting tube comprises an inner layer and an outer layer, and the inner layer and the outer layer are sequentially arranged in a first direction, and the first direction is a radial direction of the collecting tube, and the inner layer is located on the inner side of the outer layer, and the side close to the central axis of the collecting tube in the first direction is called the inner side; the two ends of the inner layer along the second direction are respectively called the top end and the bottom end, and the second direction is the axial direction of the collecting tube, and the top end is located on the side of the bottom end in the second direction away from the connecting tube, and the two ends of the outer layer along the second direction are respectively called the head end and the tail end, and the head end is located on the side of the tail end in the second direction away from the connecting tube, and the top end is opposite to the head end. The support tube is coaxially arranged with the collection tube, the support tube is fixedly connected and communicated with the connecting tube, and the support tube is located on the inner side of the outer layer of the collection tube; the two ends of the support tube along the second direction are respectively connected with the bottom end and the tail end, and a turning space is defined between the inner layer and the outer layer; the turning tube is coaxially arranged with the collection tube, the two ends of the turning tube along the second direction are both abutted in the turning space, the support tube is located on the inner side of the turning tube, and the support tube can move in the second direction in the turning space; the limiter is installed on the collection mechanism; the collection mechanism has a locked state and an unlocked state, when in the locked state, the limiter limits the support tube from moving in the second direction in the turning space, when in the unlocked state, the limiter allows the support tube to move in the second direction in the turning space, and the collection mechanism is in a locked state in the initial state; the limiter includes a first elastic member and a card block; The turning cylinder is connected to the supporting cylinder by a first elastic member, which is arranged along the second direction and always has the tendency to urge the supporting cylinder to move along the second direction toward the side close to the turning cylinder; a card block is installed on the supporting cylinder, the card block is made of rubber material, and the card block can move along the first direction on the supporting cylinder, and a card slot for cooperating with the card block is provided on the turning cylinder. When the collecting mechanism is in a locked state, the card block is connected to the card slot and limits the supporting cylinder from moving along the second direction toward the side away from the connecting tube. When the collecting mechanism is in an unlocked state, the card block is disengaged from the card slot.

2. A rumen fluid collection device for sheep according to claim 1, Features: The suction mechanism can provide negative pressure to the inner layer of the collection tube through the connecting tube. The clamping block includes a deformation plate and a wedge block. The deformation plate is installed on the supporting tube. The wedge block is installed on the deformation plate and is located on the side of the deformation plate close to the flip tube in the first direction. In the initial state, the wedge block is clamped in the clamping groove.

3. A rumen fluid collection device for sheep according to claim 1, Features: A plurality of rollers are arranged at both ends of the turning cylinder along the second direction. The plurality of rollers are evenly distributed on the turning cylinder around the second direction. The turning cylinder abuts against the turning space through the rollers.

4. A rumen fluid collection device for sheep according to claim 1, Features: The inner layer of the collection tube is evenly distributed with a plurality of inverted blocks, and the inverted blocks are made of rubber.

5. A rumen fluid collection device for sheep according to claim 4, Features: The inverted block is tilted and has a first end and a second end. The first end is fixedly connected to the flip cylinder, and the second end is located on a side of the inverted block away from the connecting tube in the second direction, and the second end is located on a side of the first end close to the central axis of the collection tube in the first direction.

6. The rumen fluid collection device for sheep according to claim 1, Features: The suction mechanism includes a collecting bottle and a piston cylinder. The piston cylinder is connected to the collecting bottle through a hose, and a first one-way valve is provided on the hose, so that gas can only enter the piston cylinder from the collecting bottle. The connecting tube is connected to the collecting bottle, and a second one-way valve is provided on the piston cylinder, so that gas can only be discharged from the piston cylinder.

7. A rumen fluid collection device for sheep according to claim 6, Features: The piston cylinder includes a cylinder body, a piston and a handle. The second one-way valve is arranged on the cylinder body. The piston passes through the cylinder body and slides and seals with the inner wall of the cylinder body. The piston and the cylinder body are connected by a second elastic member, which is a spring. The handle is fixedly connected to the cylinder body.

8. The rumen fluid collection device for sheep according to claim 1, Features: A connecting groove is provided on the turning cylinder, a connecting pin is arranged in the connecting groove, an ear plate is arranged on the supporting cylinder, and the first elastic member is connected between the ear plate and the connecting pin.

9. The rumen fluid collection device for sheep according to claim 1, Features: The first elastic member is a tension spring, and the tension spring is stretched in an initial state.

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