Piglet diarrhea excrement sample collection device and use method

Abstract

The piglet diarrhea excrement sample collecting device comprises a collecting cylinder, a piston block is arranged in the collecting cylinder in a sliding mode, a sliding rod is connected to the side, facing the closed end of the collecting cylinder, of the piston block, and the sliding rod extends out of the collecting cylinder to be connected with a push plate; the fixing column is tightly sleeved with the elastic ring on the rubber sleeve, the elastic ring is opened through negative pressure generated by suction of the piston block, a feces sample conveniently flows into the collecting cylinder, the fixing column is tightly sleeved with the elastic ring again after the feces sample is moved out of the collecting cylinder, the feces sample is prevented from flowing out, and the feces sample collecting efficiency is improved; the lubricating frame is moved out along with the collecting cylinder through the leakage holes in the lubricating frame, the lubricating frame drives the piston ring to push the lubricating liquid in the liquid storage frame to be discharged through the leakage holes, so that the side wall of the lubricating frame is kept lubricated, the lubricating frame is conveniently and smoothly inserted into the anorectum of the piglet, stimulation to the piglet is avoided, the lubricating liquid is fully utilized, and waste is avoided; the device is suitable for being used in piglet diarrhea excrement sample collection work.

Description

Technical Field

[0001] The invention relates to the technical field of feces sample collecting devices, and in particular to a feces sample collecting device for piglet diarrhea and a use method thereof. Background Art

[0002] In large-scale piglet farming, due to the high density of pigs in the pens, small piglets, and poor resistance, improper feeding can easily cause piglet diarrhea. When piglets have diarrhea, in addition to timely feeding, the diarrhea feces of piglets should be collected and tested to promptly know whether the feces contain infectious viruses.

[0003] Most of the existing fecal samples are collected after the feces are discharged. However, since the piglets are in a state of diarrhea, the feces cannot be formed and sampling is difficult. In addition, the discharged feces will be affected by the surrounding environment again, which increases the difficulty of analysis and affects the accuracy of the results. There is also a method of collecting feces by entering the piglet's anus with a sampler, but due to factors such as the structure and size of the sampler, the piglets will feel uncomfortable during the collection process and are prone to stress behavior.

[0004] The Chinese Patent Database discloses a new type of animal feces sample collection device, with publication number: CN214387522U, announcement date: October 15, 2021. The device includes a collection tube, one end of which is a conical head, and the conical head is a petal structure. Each petal of the conical head is hinged to the end of the collection tube, so that the conical head can be expanded and retracted, and a sliding sleeve is inserted into the sliding seal in the collection tube. The sliding sleeve slides in the direction of the conical head, and can stretch the conical head to make the conical head in an expanded state; a piston is inserted into the sliding seal in the sliding sleeve; a connecting ring A is fixedly connected to the inner side of each petal of the conical head, and a connecting ring B is fixedly connected to the sliding sleeve corresponding to the phase angle of each connecting ring A. The connecting ring A and the connecting ring B with the same phase angle are connected by a rope, so that the sliding sleeve slides away from the conical head, pulling each petal of the conical head inward, so that the conical head is in a retracted state. The shortcomings of this device are: after the conical head is inserted into the anus of the animal, the piston is pressed and the sliding sleeve is pushed by the push ring so that the limit pin is stuck in the hole on the side wall of the collection tube to unfold the conical head. The unfolding of the conical head inside the anus can easily irritate the animal and cause stress behavior. In addition, a collection bag is set inside the collector, which may slip during use, resulting in collection failure. The collection bag is also easily damaged and contaminates the inside of the collector.

[0005] The Chinese Patent Database also discloses a device for collecting fecal samples of diarrhea in piglets, with publication number: CN220632117U, and announcement date: March 22, 2024. The device includes a sleeve, and an inner cylinder is provided inside the sleeve along its axial direction. The inner cylinder divides the internal space of the sleeve into a first cavity and a second cavity that are not connected to each other. The upper part of the second cavity is provided with a liquid injection port, and a plurality of drainage pipes are provided at intervals at the bottom; the upper end of the sampling cylinder extends into the lower part of the first cavity and is detachably connected thereto; one end of the suction assembly is provided in the sampling cylinder, and the other end extends out of the sleeve through the first cavity; the lubrication assembly is provided below the sleeve, including a rubber ring and a water absorption ring fixed thereon, and a plurality of sockets are provided on the top surface of the rubber ring at intervals, and one socket corresponds to a drainage pipe, and the inner wall of the water absorption ring is in contact with the outer wall of the sampling cylinder; the linear drive assembly is provided on the outer wall of the sleeve and is connected to the rubber ring. The shortcomings of this device are: the piston plate and the connecting column of the suction component are connected by mutually attractive magnetic materials, which are easily affected by external forces during the use of the sampling tube, causing the piston plate and the connecting column to become disconnected, resulting in sampling failure; in addition, when the lubrication component is in use, it is necessary to repeatedly apply lubricating liquid on the outer wall of the sampling tube, and to penetrate the lubricating liquid into the water absorption ring by setting a drainage pipe, but the contact area between the drainage pipe and the water absorption ring is small, and the lubricating liquid first needs to soak the water absorption ring and then be applied to the surface of the sampling tube through the reciprocating movement of the water absorption ring. The application effect is not good, resulting in waste of lubricating liquid. Summary of the invention

[0006] The purpose of the present invention is to overcome the defects in the prior art and provide a piglet diarrhea feces sample collection device and a use method, so that the collection tube is fully lubricated to avoid stimulating the piglet to produce a stress response and improve the feces sample collection efficiency.

[0007] The objective of the present invention is achieved as follows: a device for collecting fecal samples of piglet diarrhea comprises a collecting tube, a piston block is slidably provided inside the collecting tube, a sliding rod is connected to the closed end of the collecting tube by the piston block, the sliding rod extends out of the collecting tube and is connected to a push plate, a sealing mechanism is provided at the open end of the collecting tube for controlling the unidirectional flow of piglet feces into the collecting tube, and a lubrication mechanism is provided on the outside of the collecting tube.

[0008] Furthermore, the blocking mechanism includes a conical head connected to the open end of the collecting tube, the wide end of the conical head is provided with an externally threaded fixing ring for fixing the conical head on the collecting tube, the inner wall of the open end of the collecting tube is provided with an internal thread matching the externally threaded fixing ring, and the conical head and the open end of the collecting tube are movably connected through the externally threaded fixing ring; a channel connecting the conical head and the collecting tube is opened inside the conical head, a fixing column is connected with a fixing rod at the center of the channel, both ends of the fixing rod are fixedly connected to the inner walls on both sides of the channel, a rubber sleeve is provided on the inner wall of the narrow end of the conical head, an elastic ring used in conjunction with the fixing column is provided at the center of the rubber sleeve, the column head of the fixing column extends out of the rubber sleeve toward the narrow end of the conical head, and the elastic ring is tightly fitted on the outer surface of the fixing column.

[0009] Furthermore, the conical head, the channel and the collecting tube are coaxially arranged.

[0010] Furthermore, the corners of the conical head and the connection between the conical head and the collecting tube are smoothly transitioned through rounded corners.

[0011] Furthermore, the lubrication mechanism includes a liquid storage frame slidably mounted on the outside of the closed end of the collecting tube, the liquid storage frame is provided with a filling port for filling lubricating liquid into the interior of the liquid storage frame, a piston ring is slidably connected to the inner wall of the liquid storage frame, and the side of the piston ring facing the open end of the collecting tube is connected to the lubrication frame, one end of the lubrication frame is connected to the inside of the liquid storage frame, and the other end is connected to the open end of the collecting tube through a connecting block, a plurality of leakage holes are provided on the outer peripheral surface of the lubrication frame, and the lubricating liquid can flow out through the leakage holes, and a fixing component for fixing the liquid storage frame and the collecting tube is provided on the end of the liquid storage frame close to the push plate.

[0012] Furthermore, the fixing assembly includes a clamping block connected to the upper side of the end of the liquid storage frame, and a clamping rod matched with the clamping block is provided on the side wall of the closed end of the collection tube.

[0013] Furthermore, a plurality of balls for easy sliding are arranged on the inner wall of the liquid storage frame.

[0014] Furthermore, the outer peripheral surface of the liquid storage frame is provided with an anti-slip cover for easy gripping.

[0015] Furthermore, a plurality of friction protrusions are provided on the outer periphery of the push plate.

[0016] The present invention also discloses a method for using a piglet diarrhea feces sample collection device, comprising the following steps: Step 1: Align the conical head with the piglet's anus, and then push the collection tube, the collection tube drives the lubrication frame to move, the lubrication frame drives the piston ring to move, the piston ring squeezes the lubricating liquid inside the liquid storage frame, and the lubricating liquid flows into the lubrication frame through the leakage hole close to the piston ring, and then the lubrication frame discharges the lubricating liquid through the leakage hole outside the liquid storage frame, so that the lubrication frame can move along the inner wall of the piglet's anus and intestines; Step 2: After the collection tube is inserted into the piglet's anorectum, the push plate is pulled, the push plate drives the slide bar to move, the slide bar drives the piston block to move, the piston block sucks the fecal sample, and under the action of negative pressure, the elastic ring expands, the fecal sample passes through the elastic ring into the channel, and the channel transports the fecal sample to the inside of the collection tube to achieve the collection of the fecal sample; Step three: Remove the collection tube, balance the pressure inside and outside the collection tube, and re-tighten the elastic ring on the side wall of the fixed column to prevent the fecal sample from flowing out. When removing the fecal sample, turn the conical head, and the conical head drives the external threaded fixing ring to rotate. Under the action of the thread, the external threaded fixing ring moves out of the collection tube, making it easier for the collection tube to pour out the fecal sample.

[0017] Compared with the prior art, the present invention has the following beneficial effects: First, the present invention tightly fits the elastic ring on the rubber sleeve on the fixed column, pulls the piston block, and forms a negative pressure in the collection tube to cause the elastic ring to open, so that the diarrhea feces sample can flow into the collection tube. After the collection tube is removed, the elastic ring is tightly fitted on the fixed column again to prevent the diarrhea feces sample from flowing out, thereby improving the efficiency of feces sample collection.

[0018] Secondly, the present invention evenly opens a plurality of leakage holes on the surface of the lubrication frame. The lubrication frame is moved out along with the collecting tube, and the lubrication frame drives the piston ring to push the lubricating liquid inside the liquid storage frame to be discharged through the leakage holes, so that the side wall of the lubrication frame remains lubricated, which facilitates the smooth insertion of the lubrication frame into the anus and intestines of the piglet and avoids irritation to the piglet.

[0019] Thirdly, the present invention evenly distributes the lubricating liquid on the surface of the lubricating frame through a plurality of leakage holes, and the lubricating liquid flows out quickly. After the lubricating liquid flows out, the collecting tube is inserted into the anus of the piglet for lubrication, and the lubricating liquid is fully utilized without causing waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 .

[0021] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 .

[0022] Figure 3 It is a schematic diagram of the internal structure of the present invention.

[0023] Figure 4 It is a structural schematic diagram of the blocking mechanism in the present invention.

[0024] Among them, 1 is a collecting tube, 2 is a sliding rod, 3 is a pushing plate, 4 is a clamping rod, 5 is a clamping block, 6 is a liquid storage frame, 7 is a piston ring, 8 is a filling port, 9 is a leakage hole, 10 is a lubrication frame, 11 is a conical head, 12 is a rubber sleeve, 13 is a fixing column, 14 is a fixing rod, 15 is a channel, 16 is an external thread fixing ring, 17 is a piston block, and 18 is an elastic ring. DETAILED DESCRIPTION

[0025] like Figures 1 to 4 The device shown is a stool sample collection device for piglet diarrhea, comprising a collection tube 1, a piston block 17 is provided inside the collection tube 1 for sliding movement, a slide rod 2 is connected to the closed end of the collection tube 1 by the piston block 17, the slide rod 2 extends out of the collection tube 1 and is connected to a push plate 3, a blocking mechanism is provided at the open end of the collection tube 1 for controlling the unidirectional flow of piglet feces into the collection tube 1, and a lubrication mechanism is provided outside the collection tube 1.

[0026] The sealing mechanism includes a conical head 11 connected to the open end of the collection tube 1, and an external thread fixing ring 16 for fixing the conical head 11 on the collection tube 1 is provided at the wide end of the conical head 11. An internal thread matching the external thread fixing ring 16 is provided on the inner wall of the open end of the collection tube 1, and the conical head 11 is movably connected to the open end of the collection tube 1 through the threaded connection between the external thread fixing ring 16 and the internal thread; a channel 15 connecting the conical head 11 and the collection tube 1 is opened inside the conical head 11, and a fixing column 13 is connected to the center position of the channel 15 through a fixing rod 14, and both ends of the fixing rod 14 are fixedly connected to the inner walls on both sides of the channel 15, a rubber sleeve 12 is provided on the inner wall of the narrow end of the conical head 11, and an elastic ring 18 used in conjunction with the fixing column 13 is provided at the center position of the rubber sleeve 12, and the fixing column 13 extends out of the rubber sleeve 12 toward the column head of the narrow end of the conical head 11, and the elastic ring 18 is tightly sleeved on the outer peripheral surface of the fixing column 13. The conical head 11, the channel 15 and the collection tube 1 are coaxially arranged to ensure that the fecal sample can smoothly pass through the channel 15 in the conical head 11 into the collection tube 1 to avoid leakage.

[0027] After the collecting tube 1 is inserted into the anorectal area of ​​the piglet, the push plate 3 is pulled in the opposite direction to the conical head 11, and the push plate 3 drives the piston block 17 to move through the sliding rod 2, forming a negative pressure in the collecting tube 1, and the elastic ring 18 expands. The fecal sample passes through the elastic ring 18 and enters the channel 15 and is collected in the collecting tube 1, thus completing the fecal sample collection. Thereafter, the collecting tube 1 is removed, and the pressure inside and outside the collecting tube 1 is balanced. The elastic ring 18 is re-tightened on the side wall of the fixing column 13 to prevent the fecal sample from flowing out. When removing the fecal sample, the conical head is rotated to separate the conical head from the collecting tube, and the fecal sample in the collecting tube 1 is poured out.

[0028] The corners of the conical head 11 and the connection between the conical head 11 and the collecting tube 1 are rounded and smoothly transitioned to avoid irritation to the piglet's anus caused by the corners of the device, and to ensure that the conical head 11 smoothly enters the piglet's anus, reducing the piglet's discomfort.

[0029] The lubrication mechanism includes a liquid storage frame 6 which is slidably sleeved on the outside of the closed end of the collection tube 1. The liquid storage frame 6 is provided with a filling port 8 for filling the lubricating liquid into the liquid storage frame 6. A piston ring 7 is slidably connected to the inner wall of the liquid storage frame 6. The side of the piston ring 7 facing the open end of the collection tube 1 is connected to a lubrication frame 10. One end of the lubrication frame 10 is connected to the inside of the liquid storage frame 6, and the other end is connected to the open end of the collection tube 1 through a connecting block. A plurality of leakage holes 9 are provided on the outer peripheral surface of the lubrication frame 10, through which the lubricating liquid can flow out. A fixing component for fixing the liquid storage frame 6 and the collection tube 1 is provided at one end of the liquid storage frame 6 close to the push plate 3.

[0030] The fixing assembly includes a clamping block 5 connected to the upper side of the end of the liquid storage frame 6, and a clamping rod 4 adapted to the clamping block 5 is provided on the side wall of the closed end of the collecting tube 1. The clamping block 5 and the clamping rod 4 fix the liquid storage frame 6 and the collecting tube 1 after the collecting tube 1 enters the anus of the piglet, thereby avoiding relative sliding when pulling the push plate 3 and causing the collecting tube 1 to slip off, thereby improving the fecal sample collection efficiency.

[0031] A plurality of sliding balls are also provided on the inner wall of the liquid storage frame 6, which reduce the friction between the liquid storage frame 6 and the collection tube 1, so that the lubricating liquid can be discharged faster, thereby improving the convenience of using the device.

[0032] The outer surface of the liquid storage frame 6 is provided with an anti-skid cover that is easy to hold, which is convenient for the staff to use and prevents the device from slipping. The outer periphery of the push plate 3 is provided with a plurality of friction convex points to increase the friction during the push-pull operation of the push plate 3, which is convenient to use.

[0033] The working principle of the piglet diarrhea feces sample collection device is: Before collecting the fecal sample, the lubricating liquid is added into the liquid storage frame 6 through the filling port 8. At this time, the liquid storage frame 6 is located at one end close to the conical head 11. The conical head 11 is aimed at the anus of the piglet, and the collection tube 1 is pushed into the anus of the piglet. The collection tube 1 drives the lubricating frame 10 to move, and the lubricating frame 10 drives the piston ring 7 to move. The piston ring 7 squeezes the lubricating liquid inside the liquid storage frame 6, so that the lubricating liquid flows into the inside of the lubricating frame 10 through the leakage hole 9 close to the piston ring 7, and then the lubricating liquid in the lubricating frame 10 is discharged through the leakage hole 9 outside the liquid storage frame 10, so that the lubricating frame 10 can move along the inner wall of the piglet's anus and intestines. After the collection tube 1 is inserted into the piglet's anorectum, the push plate 3 is pulled in the opposite direction to the conical head 11, and the push plate 3 drives the piston block 17 to move through the slide rod 2, a negative pressure is formed in the collection tube 1, and the elastic ring 18 expands, and the fecal sample passes through the elastic ring 18 into the channel 15 and is collected in the collection tube 1, completing the fecal sample collection; Then, the collecting tube 1 is removed, the pressure inside and outside the collecting tube 1 is balanced, and the elastic ring 18 is tightly sleeved on the side wall of the fixing column 13 again to prevent the fecal sample from flowing out; when removing the fecal sample, the conical head is rotated to separate the conical head from the collecting tube, and the fecal sample in the collecting tube 1 is poured out.

[0034] The piglet diarrhea feces sample collecting device of the present invention is characterized in that the elastic ring on the rubber sleeve is tightly sleeved on the fixed column, and the piston block is pulled to form a negative pressure in the collecting tube to prompt the elastic ring to open, so that the diarrhea feces sample can flow into the collecting tube. After the collecting tube is moved out, the elastic ring is tightly sleeved on the fixed column again to prevent the diarrhea feces sample from flowing out, thereby improving the efficiency of feces sample collection; a plurality of leakage holes are evenly provided on the surface of the lubrication frame, and the lubrication frame is moved out with the collecting tube, and the lubrication frame drives the piston ring to push the lubricating liquid in the liquid storage frame to be discharged through the leakage holes, so that the side wall of the lubrication frame is kept lubricated, and the lubrication frame is smoothly inserted into the piglet anus and intestines, thereby avoiding irritation to the piglet; in addition, the plurality of leakage holes make the lubricating liquid evenly distributed on the surface of the lubrication frame, the lubricating liquid discharges quickly, and after the discharge, the lubricating liquid is extended into the piglet anus for lubrication, so that the lubricating liquid is fully utilized without causing waste, and is suitable for use in the work of collecting piglet diarrhea feces samples.

[0035] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present invention, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present invention.

Claims

1. A fecal sample collection device for piglet diarrhea, comprising a collection tube (1), wherein a piston block (17) is slidably provided inside the collection tube (1), wherein a sliding rod (2) is connected to the closed end of the piston block (17) facing the collection tube (1), and the sliding rod (2) extends out of the collection tube (1) and is connected to a push plate (3), wherein: The open end of the collecting tube (1) is provided with a blocking mechanism for controlling the unidirectional flow of piglet feces into the collecting tube (1), and the outside of the collecting tube (1) is provided with a lubricating mechanism.

2. A piglet diarrhea feces sample collection device according to claim 1, characterized in that: The blocking mechanism comprises a conical head (11) connected to the open end of the collection tube (1); the wide end of the conical head (11) is provided with an external thread fixing ring (16) for fixing the conical head (11) to the collection tube (1); the inner wall of the open end of the collection tube (1) is provided with an internal thread matching the external thread fixing ring (16); the conical head (11) and the open end of the collection tube (1) are movably connected via the external thread fixing ring (16); the conical head (11) is provided with a channel (15) connecting the conical head (11) and the collection tube (1) ), a fixing column (13) is connected to the center of the channel (15) via a fixing rod (14), the two ends of the fixing rod (14) are fixedly connected to the inner walls of both sides of the channel (15), a rubber sleeve (12) is provided on the inner wall of the narrow end of the conical head (11), an elastic ring (18) used in conjunction with the fixing column (13) is provided at the center of the rubber sleeve (12), the column head of the fixing column (13) extending out of the rubber sleeve (12) toward the narrow end of the conical head (11), and the elastic ring (18) is tightly sleeved on the outer surface of the fixing column (13).

3. A piglet diarrhea feces sample collection device according to claim 2, characterized in that: The conical head (11), the channel (15) and the collection tube (1) are coaxially arranged.

4. A piglet diarrhea feces sample collection device according to claim 2, characterized in that: The corners of the conical head (11) and the connection between the conical head (11) and the collecting tube (1) are smoothly transitioned through rounded corners.

5. The piglet diarrhea feces sample collection device according to claim 1, characterized in that: The lubricating mechanism comprises a liquid storage frame (6) slidably sleeved on the outside of the closed end of the collection tube (1); a filling port (8) for filling the lubricating liquid into the liquid storage frame (6) is provided on the liquid storage frame (6); a piston ring (7) is slidably connected to the inner wall of the liquid storage frame (6); a lubricating frame (10) is connected to the side of the piston ring (7) facing the open end of the collection tube (1); one end of the lubricating frame (10) is connected to the inside of the liquid storage frame (6), and the other end is connected to the open end of the collection tube (1) through a connecting block; a plurality of leakage holes (9) are provided on the outer peripheral surface of the lubricating frame (10), and the lubricating liquid flows out through the leakage holes (9); and a fixing component for fixing the liquid storage frame (6) and the collection tube (1) is provided on the end of the liquid storage frame (6) close to the push plate (3).

6. A piglet diarrhea feces sample collection device according to claim 5, characterized in that: The fixing assembly comprises a clamping block (5) connected to the upper side of the end of the liquid storage frame (6), and a clamping rod (4) adapted to the clamping block (5) is provided on the side wall of the closed end of the collection tube (1).

7. A piglet diarrhea feces sample collection device according to claim 5, characterized in that: The inner wall of the liquid storage frame (6) is also provided with a plurality of rolling balls for easy sliding.

8. The device for collecting piglet diarrhea feces according to claim 5, characterized in that: The outer peripheral surface of the liquid storage frame (6) is provided with an anti-slip cover for easy gripping.

9. The piglet diarrhea feces sample collection device according to claim 1, characterized in that: The outer periphery of the push plate (3) is provided with a plurality of friction protrusions.

10. The method for using the piglet diarrhea feces sample collection device according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Align the conical head (11) with the piglet's anus, and then push the collection tube (1), the collection tube (1) drives the lubrication frame (10) to move, the lubrication frame (10) drives the piston ring (7) to move, the piston ring (7) squeezes the lubricating liquid inside the liquid storage frame (6), so that the lubricating liquid flows into the lubrication frame (10) through the leakage hole (9) close to the piston ring (7), and then the lubrication frame (10) discharges the lubricating liquid through the leakage hole (9) outside the liquid storage frame (6), so that the lubrication frame (10) can move along the inner wall of the piglet's anus and intestines; Step 2: After the collection tube (1) is inserted into the piglet's anorectum, the push plate (3) is pulled, the push plate (3) drives the slide bar (2) to move, the slide bar (2) drives the piston block (17) to move, the piston block (17) sucks the fecal sample, and under the action of negative pressure, the elastic ring (18) expands, the fecal sample passes through the elastic ring (18) into the channel (15), and the channel (15) transports the fecal sample to the inside of the collection tube (1), thereby collecting the fecal sample; Step 3: Remove the collection tube (1), balance the pressure inside and outside the collection tube (1), and re-tighten the elastic ring (18) on the side wall of the fixing column (13) to prevent the fecal sample from flowing out. When removing the fecal sample, rotate the conical head (11), and the conical head (11) drives the external thread fixing ring (16) to rotate. Under the action of the thread, the external thread fixing ring (16) moves out of the collection tube (1), making it easier for the collection tube (1) to pour out the fecal sample.

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