A sampling device for testing dairy cow feed

Abstract

This utility model discloses a sampling device for testing dairy cow feed, relating to the field of animal husbandry. It includes a sampling cylinder and a negative pressure collection component detachably connected to the sampling cylinder. Multiple sampling holes are spaced apart along the axial direction on one side of the sampling cylinder. A movable rod is installed inside the sampling cylinder, and multiple sealing plates are spaced apart on the side of the movable rod facing the sampling holes. Each sealing plate corresponds to one of the sampling holes and can seal them. A first baffle is provided at one end of the movable rod, abutting against the inner wall of the sampling cylinder. A telescopic mechanism is provided at the other end of the sampling cylinder, with its telescopic end passing through the sampling cylinder and connected to the movable rod. Multiple sealing interfaces are provided on the other side of the sampling cylinder, corresponding one-to-one with or offset from the sampling holes. The negative pressure collection component has a plug that is adapted to connect with the sealing interfaces. This application enables layered sampling and rapid acquisition of multi-layered samples, facilitating collection and improving sampling efficiency.

Description

Technical Field

[0001] This utility model relates to the field of animal husbandry, and more specifically, to a sampling device for testing dairy cow feed. Background Technology

[0002] Dairy cow feed can be divided into six categories: roughage, concentrate, succulent feed, animal feed, mineral feed, and feed additives. Dairy cow feed mainly includes Yazin sweet sorghum straw feed, green corn feed, alfalfa feed, Yazin protein mulberry feed, oat feed, and corn feed, etc. The selection of dairy cow feed plays a crucial role in the growth and milk production of dairy cows; therefore, it is necessary to sample, collect, and test the feed during the production and feeding process.

[0003] Existing sampling devices for testing dairy cow feed cannot perform stratified sampling to quickly obtain multi-layered samples, which affects the test results; and they are also inconvenient to collect. Utility Model Content

[0004] The purpose of this invention is to provide a sampling device for testing dairy cow feed, which can perform stratified sampling and quickly obtain multi-layer samples, making it easy to collect and improving sampling efficiency.

[0005] The embodiments of this utility model are implemented as follows:

[0006] This application provides a sampling device for testing dairy cow feed, including a sampling tube and a negative pressure collection component detachably connected to the sampling tube, wherein a drill bit is provided at one end of the sampling tube;

[0007] The sampling tube has multiple sampling holes spaced apart along its axial direction on one side; a movable rod is provided inside the sampling tube, and multiple sealing plates are connected to the movable rod along its axial direction on the side facing the sampling holes. The multiple sealing plates correspond one-to-one with the multiple sampling holes and can seal the multiple sampling holes accordingly; a first baffle is provided at the end of the movable rod near the drill bit, and the edge of the first baffle abuts against the inner wall of the sampling tube.

[0008] The other end of the sampling tube is provided with a telescopic mechanism, the telescopic end of which passes through the sampling tube and is connected to the moving rod;

[0009] On the other side of the sampling tube, multiple sealing interfaces are spaced apart along its axial direction. The multiple sealing interfaces correspond one-to-one with the multiple sampling holes or are staggered. The negative pressure collecting component is provided with a plug, which is adapted to be inserted into the sealing interface.

[0010] Furthermore, based on the aforementioned scheme, a second baffle is provided on the moving rod, the second baffle being spaced apart from the first baffle, and the second baffle being located below the plurality of sealing plates.

[0011] Furthermore, based on the aforementioned scheme, the distance between the first baffle and the second baffle is greater than the distance between the center points of two adjacent sampling holes and less than the farthest distance between two adjacent sampling holes.

[0012] Furthermore, based on the aforementioned scheme, the edges of the first baffle and the second baffle are provided with a silicone rubber sealing layer.

[0013] Furthermore, based on the aforementioned scheme, the telescopic mechanism includes a control sleeve and a telescopic cylinder disposed within the control sleeve. The control sleeve is connected to the end of the sampling cylinder away from the drill bit. The telescopic end of the telescopic cylinder extends through the control sleeve toward the interior of the sampling cylinder and is connected to one side of the moving rod.

[0014] Furthermore, based on the aforementioned scheme, the control sleeve has a through hole at one end near the sampling cylinder for the moving rod to pass through.

[0015] Furthermore, based on the aforementioned scheme, the sealing interface includes an interface component and a one-way valve core. The interface component penetrates the side wall of the sampling cylinder, and the end of the interface component near the outer side is a tapered interface with an annular groove on the inner wall of the tapered interface. The one-way valve core is located at the end of the interface component near the inner side and is used to seal the tapered interface.

[0016] Furthermore, based on the aforementioned solution, the negative pressure collecting device has a collecting port, and the plug is threadedly connected to the collecting port;

[0017] The plug includes a tapered insert that is adapted to be inserted into the tapered interface. An annular protrusion is provided on the outer side of the insert, and the annular protrusion is adapted to be engaged with the annular groove. A cylindrical pin extends outward from the center of the insert and is used to press the one-way valve core.

[0018] Furthermore, based on the aforementioned scheme, an annular sealing ring is embedded at the outer end of the tapered interface.

[0019] Furthermore, based on the aforementioned scheme, the end of the control sleeve furthest from the drill bit is connected to a rotary motor via a transmission mechanism.

[0020] Compared with the prior art, the embodiments of this utility model have at least the following advantages or beneficial effects:

[0021] This application utilizes a drill bit at one end of the sampling tube to facilitate deeper insertion for sampling. Multiple sampling holes are arranged axially along one side of the sampling tube, with a movable rod inside. Multiple sealing plates are installed on one side of the movable rod to seal the sampling holes, and a first baffle is located at the bottom of the movable rod. The movable rod is driven up and down by a telescopic mechanism, which in turn moves the sealing plates up and down, opening and closing the multiple sampling holes. The first baffle connects the opened sampling holes to the interior of the sampling tube, forming a sealed structure. Multiple sealing interfaces are provided on the other side of the sampling tube, with a plug for the negative pressure collection component that adapts to each interface. When sampling through one sampling hole, the corresponding sealing interface is opened and connected to the negative pressure collection component for negative pressure suction, thus rapidly collecting the feed sample. By using different negative pressure collection components at different sealing interfaces, stratified feed samples can be collected into different collection components, improving detection accuracy. This application enables stratified sampling and rapid acquisition of multi-layered samples, facilitating collection and improving sampling efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a cross-sectional view of a sampling device for detecting dairy cow feed according to an embodiment of the present invention;

[0024] Figure 2 This is a cross-sectional view of the moving rod after it has moved upward according to an embodiment of the present invention;

[0025] Figure 3 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0026] Figure 4 This is a cross-sectional view of the negative pressure collection component according to an embodiment of the present invention.

[0027] Icons: 1-Sampling tube, 2-Negative pressure collection component, 11-Drill bit, 12-Sampling hole, 3-Moving rod, 4-Sealing plate, 31-First baffle, 5-Telescopic mechanism, 13-Sealing interface, 21-Plug, 32-Second baffle, 33-Silicone rubber sealing layer, 51-Control sleeve, 52-Telescopic cylinder, 34-Elastic component, 131-One-way valve core, 132-Interface component, 133-Annular groove, 211-Collection port, 212-Annular protrusion, 213-Columnar pin, 214-Insert tube. Detailed Implementation

[0028] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0029] Please refer to Figures 1-4 The image shows a schematic diagram of the overall structure of a sampling device for testing dairy cow feed.

[0030] This embodiment provides a sampling device for testing dairy cow feed, including a sampling cylinder 1 and a negative pressure collection component 2 detachably connected to the sampling cylinder 1. A drill bit 11 is provided at one end of the sampling cylinder 1.

[0031] A plurality of sampling holes 12 are provided at intervals along the axial direction on one side of the sampling tube 1; a movable rod 3 is provided inside the sampling tube 1, and a plurality of sealing plates 4 are connected at intervals along the axial direction on the side of the movable rod 3 facing the sampling holes 12. The plurality of sealing plates 4 correspond one-to-one with the plurality of sampling holes 12 and can seal the plurality of sampling holes 12 accordingly; a first baffle 31 is provided at the end of the movable rod 3 near the drill bit 11, and the edge of the first baffle 31 abuts against the inner wall of the sampling tube 1.

[0032] The other end of the sampling tube 1 is provided with a telescopic mechanism 5, and the telescopic end of the telescopic mechanism 5 passes through the sampling tube 1 and is connected to the moving rod 3.

[0033] On the other side of the sampling tube 1, multiple sealing interfaces 13 are provided at intervals along its axial direction. The multiple sealing interfaces 13 correspond one-to-one with the multiple sampling holes 12 or are arranged in a staggered manner. The negative pressure collection component 2 is provided with a plug 21, which is adapted to be inserted into the sealing interface 13.

[0034] The following will further describe a sampling device for detecting dairy cow feed in this exemplary embodiment.

[0035] In some embodiments, a drill bit 11 is provided at one end of the sampling tube 1 to facilitate drilling and insertion to a certain depth for sampling. Multiple sampling holes 12 are spaced apart along the axial direction on one side of the sampling tube 1. A movable rod 3 is provided inside the sampling tube 1, and multiple sealing plates 4 are connected axially to the side of the movable rod 3 facing the sampling holes 12. Each sealing plate 4 corresponds to one of the multiple sampling holes 12 and can seal the holes 12 accordingly. A first baffle 31 is provided at the end of the movable rod 3 near the drill bit 11, and the edge of the first baffle 31 abuts against the inner wall of the sampling tube 1. A telescopic mechanism 5 is provided at the other end of the sampling tube 1, and the telescopic end of the telescopic mechanism 5 passes through the sampling tube 1 and is connected to the movable rod 3.

[0036] In the initial state, multiple sealing plates 4 seal multiple sampling holes 12 one by one, and the first baffle 31 is located at the bottom of the sampling cylinder 1. When sampling is required, the telescopic mechanism 5 drives the moving rod 3 to move upward inside the sampling cylinder 1, thereby simultaneously moving the multiple sealing plates 4 and the first baffle 31 upward. First, the bottommost sampling hole 12 is opened, and the remaining sampling holes 12 are still sealed by the upward-moving sealing plates 4. The first baffle 31 is located above the opened sampling hole 12, forming a sampling space inside the sampling cylinder 1 that is only connected to the sampling hole 12.

[0037] In some embodiments, a plurality of sealing interfaces 13 are provided at axial intervals on the other side of the sampling cylinder 1, with the sealing interfaces 13 corresponding one-to-one with or staggered with a plurality of sampling holes 12; the negative pressure collection component 2 is provided with a plug 21, which is adapted to be inserted into the sealing interface 13. Each sealing interface 13 is connected to a corresponding negative pressure collection component 2, allowing feed from different layers to be transported to the corresponding negative pressure collection component 2 for collection. By setting the negative pressure collection component 2, feed can be directly transported from the sampling hole 12 to the corresponding sampling space and then into the negative pressure collection component 2. The negative pressure collection component 2 can be detachably connected to the sampling cylinder 1 through the plug-in method, making it easy to remove for testing and analysis.

[0038] It should be noted that the size ratio of the negative pressure collecting element 2 to the sampling hole 12 should be adjusted according to the actual application. This facilitates the collection of more feed and also increases the suction power of the negative pressure to draw the feed into the negative pressure collecting element 2. The negative pressure collecting element 2 can be a closed cavity with internal negative pressure, or it can be connected to an external negative pressure device through a negative pressure pipeline.

[0039] In a preferred embodiment, the aforementioned movable rod 3 is provided with a second baffle 32, which is spaced apart from the first baffle 31 and is located below the plurality of sealing plates 4. By providing two baffles, the two baffles can seal the upper and lower parts of the sampling tube 1 corresponding to a sampling hole 12, avoiding the situation where the bottom sampling space is too large when the upward movement distance is too long, making it difficult to attract feed through negative pressure.

[0040] In a preferred embodiment, the distance between the first baffle 31 and the second baffle 32 is greater than the distance between the center points of two adjacent sampling holes 12 and less than the farthest distance between two adjacent sampling holes 12, so that the first baffle 31 and the second baffle 32 can always move to the upper and lower ends of a sampling hole 12.

[0041] As a preferred embodiment, the edges of the first baffle 31 and the second baffle 32 are provided with a silicone rubber sealing layer 33, which seals against the inner wall of the sampling cylinder 1, improving the sealing performance of the formed sampling space and facilitating negative pressure suction.

[0042] In a preferred embodiment, the sealing plate 4 can be arc-shaped, protruding towards the sampling hole 12, and made of silicone rubber to provide a seal. The arc shape also facilitates vertical movement. The sealing plate 4 can be connected to the moving rod 3 via an elastic element 34, which can be a spring or an elastic column, providing tension to the sealing plate 4 for better sealing of the sampling hole 12 and easier movement.

[0043] In a preferred embodiment, the telescopic mechanism 5 includes a control sleeve 51 and a telescopic cylinder 52 disposed within the control sleeve 51. The control sleeve 51 is connected to the end of the sampling cylinder 1 furthest from the drill bit 11. The telescopic end of the telescopic cylinder 52 extends through the control sleeve 51 toward the interior of the sampling cylinder 1 and is connected to one side of the moving rod 3. A through hole is provided at the end of the control sleeve 51 near the sampling cylinder 1 for the moving rod 3 to pass through. By extending and retracting the telescopic cylinder 52, the moving rod 3 moves up and down, thereby causing multiple sealing plates 4 to move synchronously. By providing a through hole on the end face of the control sleeve 51 and connecting the driving end of the telescopic cylinder 52 to one side of the moving rod 3, the upward distance of the moving rod 3 can be increased, and the telescopic distance of the telescopic cylinder 52 can be increased, thereby reducing the volume of the sampling device.

[0044] In a preferred embodiment, the sealing interface 13 includes an interface element 132 and a one-way valve core 131. The interface element 132 penetrates the side wall of the sampling cylinder 1, and can be extended outward by a certain length to make the connection more stable. The end of the interface element 132 near the outer side is a tapered interface, and an annular groove 133 is provided on the inner wall of the tapered interface. The one-way valve core 131 is disposed at the end of the interface element 132 near the inner side and is used to seal the tapered interface.

[0045] In a preferred embodiment, the negative pressure collecting device 2 has a collecting port 211, and a plug 21 is threadedly connected to the collecting port 211. The plug 21 includes a conical insert 214, which is adapted to be inserted into the conical interface. An annular protrusion 212 is provided on the outer side of the insert 214, which is adapted to be engaged with an annular groove 133. A cylindrical pin 213 extends outward from the center of the insert 214, and the cylindrical pin 213 is used to press against the one-way valve core 131. The conical insert 214 and the conical interface serve as a guide for insertion, while the annular protrusion 212 and the annular groove 133 can stably connect the insert 214 to the conical interface. The cylindrical pin 213 pressurizes the one-way valve core 131, thereby opening the conical interface and facilitating the delivery of feed into the collecting device. It should be noted that the cylindrical pin 213 can be connected to the center of the insert 214 via a cross connecting rod, ensuring a stable connection without affecting the delivery of feed. Specifically, the one-way valve core 131 mentioned above can be the one-way valve core 131 in the prior art.

[0046] Furthermore, the aforementioned negative pressure collection component 2 can be a disposable negative pressure collection bag or a negative pressure collection bucket. When it is disposable, a detachable interface for connecting the negative pressure pipe can be provided on its side wall for easy disassembly and disposal after use.

[0047] As a preferred embodiment, the outer end of the tapered interface is fitted with an annular sealing ring to improve the sealing performance after the insert 214 is connected to the sealing interface 13.

[0048] In a preferred embodiment, the end of the control sleeve 51 furthest from the drill bit 11 can be connected to a rotary motor via a transmission mechanism, enabling the entire sampling cylinder 1 to rotate at high speed and automatically move downwards to drill a hole in conjunction with the drill bit 11. The transmission structure and rotary motor described above both employ existing conventional structures, and will not be described in detail in this embodiment.

[0049] Furthermore, unless otherwise explicitly specified or limited, the terms "installation" and "connection" in this application embodiment should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. The terms "upper," "lower," "left," "right," "inner," "outer," and "side," etc., are merely for reference to the direction in the accompanying drawings or the usual placement of the product during use. They are only for clearly describing this application and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limitations on this application. The terms "first," "second," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance; "multiple" refers to at least two. In this application embodiment, the limitations on relative positional relationships such as parallel, perpendicular, and aligned are all relative to the current technological level and are not absolutely strict limitations. Slight deviations are allowed; approximations of parallel, perpendicular, and aligned are all acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 degrees and 10 degrees.

[0050] The above are only some embodiments and implementation methods of this application. The protection scope of this application is not limited thereto. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. Any combination of features in different embodiments is also within the protection scope of this application. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the protection scope of this application.

Claims

1. A sampling device for detecting dairy cow feed, characterized in that, It includes a sampling cylinder and a negative pressure collection component detachably connected to the sampling cylinder, with a drill bit provided at one end of the sampling cylinder; The sampling tube has multiple sampling holes spaced apart along its axial direction on one side; a movable rod is provided inside the sampling tube, and multiple sealing plates are connected to the movable rod along its axial direction on the side facing the sampling holes. The multiple sealing plates correspond one-to-one with the multiple sampling holes and can seal the multiple sampling holes accordingly; a first baffle is provided at the end of the movable rod near the drill bit, and the edge of the first baffle abuts against the inner wall of the sampling tube. The other end of the sampling tube is provided with a telescopic mechanism, the telescopic end of which passes through the sampling tube and is connected to the moving rod; On the other side of the sampling tube, multiple sealing interfaces are spaced apart along its axial direction. The multiple sealing interfaces correspond one-to-one with the multiple sampling holes or are staggered. The negative pressure collecting component is provided with a plug, which is adapted to be inserted into the sealing interface.

2. The sampling device for detecting dairy cow feed according to claim 1, characterized in that, The movable rod is provided with a second baffle, which is spaced apart from the first baffle and is located below the plurality of sealing plates.

3. The sampling device for detecting dairy cow feed according to claim 2, characterized in that, The distance between the first baffle and the second baffle is greater than the distance between the center points of two adjacent sampling holes and less than the farthest distance between two adjacent sampling holes.

4. The sampling device for detecting dairy cow feed according to claim 3, characterized in that, The edges of the first baffle and the second baffle are provided with a silicone rubber sealing layer.

5. The sampling device for detecting dairy cow feed according to claim 1, characterized in that, The telescopic mechanism includes a control sleeve and a telescopic cylinder disposed within the control sleeve. The control sleeve is connected to the end of the sampling cylinder away from the drill bit. The telescopic end of the telescopic cylinder extends through the control sleeve toward the interior of the sampling cylinder and is connected to one side of the moving rod. A through hole is provided at the end of the control sleeve near the sampling cylinder for the moving rod to pass through.

6. The sampling device for detecting dairy cow feed according to claim 1, characterized in that, The sealing plate is an arc shape that bulges outward, and the sealing plate is connected to the moving rod through an elastic element.

7. The sampling device for detecting dairy cow feed according to claim 1, characterized in that, The sealing interface includes an interface component and a one-way valve core. The interface component penetrates the side wall of the sampling cylinder. The outer end of the interface component is tapered, and the inner wall of the tapered interface is provided with an annular groove. The one-way valve core is located at the inner end of the interface component and is used to seal the tapered interface.

8. The sampling device for detecting dairy cow feed according to claim 7, characterized in that, The negative pressure collecting device has a collecting port, and the plug is threadedly connected to the collecting port; The plug includes a tapered insert that is adapted to be inserted into the tapered interface. An annular protrusion is provided on the outer side of the insert, and the annular protrusion is adapted to be engaged with the annular groove. A cylindrical pin extends outward from the center of the insert and is used to press the one-way valve core.

9. The sampling device for detecting dairy cow feed according to claim 8, characterized in that, The outer end of the tapered interface is fitted with an annular sealing ring.

10. The sampling device for detecting dairy cow feed according to claim 5, characterized in that, The end of the control sleeve furthest from the drill bit is connected to a rotary motor via a transmission mechanism.

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