Fresh milk sampling device

Abstract

The utility model relates to the technical field of raw and fresh milk production detection, in particular to a raw and fresh milk sampling device which comprises an outer frame pipe, an inner branch pipe and a sampling barrel, a central through hole is formed in the center of the outer frame pipe, the inner branch pipe is inserted into the central through hole, a plurality of sampling through holes are formed in the inner branch pipe, and the plurality of sampling through holes are circumferentially and uniformly distributed by taking the axis of the inner branch pipe as the center; the plurality of sampling barrels are inserted into the plurality of sampling through holes one by one, and the lengths of the plurality of sampling barrels are different; the fresh milk sampling device is simple in structure, convenient to use and simple to operate, sampling work of fresh milk at different depths can be achieved through one-time use, the working efficiency of fresh milk sampling is improved, assembly can be completed through simple inserting connection, all parts are convenient to disassemble, cleaning and disinfection after use are convenient, and therefore the fresh milk is prevented from being polluted; according to the utility model, except the sampling barrel, other parts are not in contact with the fresh milk, so that the risk that the fresh milk is polluted is also reduced.

Description

Technical Field

[0001] This utility model relates to the field of raw milk production and testing technology, specifically a raw milk sampling device. Background Technology

[0002] Dairy processing companies need to conduct quality testing on raw milk. Because raw milk has a certain viscosity and fat tends to rise to the top, there can be differences in quality between the upper and lower layers. Therefore, sampling at different depths is necessary when taking samples from raw milk. Current technology typically involves inserting a straw into the raw milk at different depths for multiple samplings, which is cumbersome, time-consuming, labor-intensive, and inefficient.

[0003] The prior art, patent publication number CN217483928U, discloses a raw milk sampling device, including a telescopic mechanism and a sampling cylinder mechanism that cooperates with the telescopic mechanism. The sampling cylinder body is fixed to the side of the sliding tube by a double-ring connecting sleeve. The sliding tube and the telescopic rod slide together, allowing the transmission rod to drive the driven sampling rod to pull upward, thereby sucking the raw milk into the sampling cylinder body. The double-ring connecting sleeve and the sampling cylinder body are equipped with several components that can simultaneously sample raw milk at different depths, which can greatly improve the efficiency of milk testing. At the same time, the position of the double-ring connecting sleeve on the sliding tube can be adjusted, and the sampling depth can be changed by replacing the driven sampling rod with different lengths, making it flexible and improving utilization.

[0004] The aforementioned prior art requires the device body to be inserted into fresh milk during use. Except for the transmission rod, all other components need to come into contact with the fresh milk. Among the components in contact with the fresh milk are bolts. With so many components in contact with the fresh milk, there is a risk of contaminating the fresh milk if the components of the fresh milk sampling device are not cleaned properly. The aforementioned prior art fresh milk sampling device has many components and complex connections. After use, cleaning requires disassembly of the components, and after cleaning and drying, it needs to be reassembled. This makes the cleaning of the aforementioned prior art fresh milk sampling device complicated, time-consuming, and labor-intensive, and there is even a problem that it is inconvenient to clean the liquid channel. Utility Model Content

[0005] The purpose of this utility model is to provide a raw milk sampling device that uses multiple sampling tubes of different lengths to sample raw milk at different depths, thereby improving the efficiency of raw milk sampling. During use, only the sampling tubes come into contact with the raw milk, reducing the risk of the raw milk being contaminated by the sampling device. The device has a simple structure, is easy to disassemble, and is easy to clean and disinfect after use.

[0006] To achieve the above-mentioned technical effects, the present invention provides a raw milk sampling device comprising an outer frame tube, an inner branch tube, and sampling tubes. The inner branch tube is coaxial with the outer frame tube, and the outer frame tube has a central through hole at its center. The inner branch tube is inserted into the central through hole, and the inner branch tube has multiple sampling through holes evenly distributed around the axis of the inner branch tube. Multiple sampling tubes are provided, and the number of sampling tubes is the same as the number of sampling through holes. The multiple sampling tubes are inserted one by one into the multiple sampling through holes, and the lengths of the multiple sampling tubes are all different.

[0007] Furthermore, the sampling cylinder includes an outer cylinder, a piston head, and a handle column. The outer cylinder includes a straight section, an inverted conical section, and an upper flange. The straight section, the inverted conical section, and the upper flange are connected. The inverted conical section is fixedly connected to the lower end of the straight section, and the upper flange is fixedly connected to the upper end of the straight section. A sampling hole is provided at the lower end of the inverted conical section. The piston head is slidably connected to the straight section along the axial direction. A sealing ring is provided on the outer wall of the piston head. The side of the sealing ring away from the piston head abuts against the inner wall of the straight section. The lower end of the handle column is fixedly connected to the top surface of the piston head. The length of the handle column is greater than the length of the straight section. The upper end of the handle column extends out of the upper flange. The outer diameter of the straight section is smaller than the inner diameter of the sampling through hole. The straight section is inserted into the sampling through hole. The outer wall of the upper flange is larger than the inner diameter of the sampling through hole. The upper flange is supported at the upper end of the sampling through hole.

[0008] Furthermore, the outer support pipe includes a pipe body I and a flange I. Flange I is fixedly connected to the upper end of pipe body I. The outer wall of flange I is larger than the outer wall of pipe body I. A central through hole penetrates pipe body I and flange I. The inner branch pipe includes a pipe body II and a flange II. Flange II is fixedly connected to the upper end of pipe body II. Each sampling through hole penetrates pipe body II and flange II. The outer diameter of pipe body II is smaller than the inner diameter of the central through hole. Pipe body II is inserted into the central through hole. The outer diameter of flange II is larger than the inner diameter of the central through hole. Flange II is supported on the top surface of flange I.

[0009] Furthermore, the tube body II has multiple rectangular through holes II on its side wall, each corresponding to a sampling through hole, and the side walls of the multiple rectangular through holes II and the sampling through holes are connected to each other. The tube body I has multiple rectangular through holes I on its side wall, each corresponding to a rectangular through hole II, and the rectangular through holes I and the rectangular through holes II are connected to each other. The rectangular through holes II and the rectangular through holes I have the same shape. The outer cylinder is made of transparent glass or transparent polypropylene.

[0010] Furthermore, the top surface of flange I is provided with multiple positioning posts, which extend out of the top surface of flange I. The number of positioning posts is the same as the number of sampling cylinders. The positioning posts are evenly distributed around the center circumference of flange I. The outer wall of flange II is provided with multiple positioning grooves, which are evenly distributed around the center circumference of flange II. The number of positioning posts and positioning grooves are evenly distributed. The positioning grooves are snapped onto the positioning posts one by one.

[0011] Furthermore, the sampling cylinder includes a handle plate, which is fixedly connected to the top of the handle column. The handle plate is located above the upper flange, and the outer diameter of the handle plate is larger than the outer diameter of the handle column.

[0012] Preferably, a support flange is fixedly connected to the lower outer wall of the pipe body I, and the outer diameter of the support flange is larger than the outer diameter of the flange I.

[0013] Preferably, the upper flange has a regular hexagonal cross-sectional shape.

[0014] The beneficial effects of this utility model are: This utility model has a simple structure, is convenient to use and easy to operate. It can achieve sampling of raw milk at different depths in one use, which improves the efficiency of raw milk sampling. It can be assembled by simple plug-in, and each part is easy to disassemble, which facilitates cleaning and disinfection after use, thereby avoiding contamination of raw milk. In addition, except for the sampling tube, the other parts of this utility model do not come into contact with raw milk, which also reduces the risk of raw milk contamination. Attached Figure Description

[0015] Figure 1 This is a top view of the structure of Embodiment 1 of this utility model;

[0016] Figure 2 This is a side view of an embodiment of the present utility model;

[0017] Figure 3 This utility model Figure 2 AA section view;

[0018] Figure 4 This is a schematic diagram of the structure of the outer frame tube in Embodiment 1 of this utility model;

[0019] Figure 5 This utility model Figure 4 BB section view;

[0020] Figure 6 This utility model Figure 5 CC section view;

[0021] Figure 7 This is a schematic diagram of the internal branch pipe of this utility model;

[0022] Figure 8 This utility model Figure 7 DD section view;

[0023] Figure 9 This utility model Figure 8 EE section view;

[0024] Figure 10 This is a schematic diagram of the sampling tube of this utility model;

[0025] Figure 11 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0026] In the diagram: 1. Outer support pipe; 101. Pipe body I; 102. Flange I; 103. Central through hole; 104. Positioning post; 105. Rectangular through hole I; 2. Inner branch pipe; 201. Pipe body II; 202. Flange II; 203. Sampling through hole; 204. Rectangular through hole II; 205. Positioning groove; 3. Sampling cylinder; 301. Outer cylinder; 3011. Straight cylinder section; 3012. Inverted conical cylinder section; 3013. Upper flange; 302. Piston head; 303. Handle post; 304. Handle plate; 4. Support flange. Detailed Implementation

[0027] like Figures 1-10As shown, an embodiment of the raw milk sampling device of this utility model includes an outer frame tube 1, an inner branch tube 2, and a sampling cylinder 3. The outer frame tube 1 includes a tube body I 101 and a flange I 102. The flange I 102 is fixedly connected to the upper end of the tube body I 101. The outer wall of the flange I 102 is larger than the outer wall of the tube body I 101. A central through hole 103 is provided in the center of the outer frame tube 1, which penetrates the tube body I 101 and the flange I 102. The inner branch tube 2 includes a tube body II 201 and a flange II 202. The flange II 202 is fixedly connected to the upper end of the tube body II 201. The inner branch tube 2 is provided with multiple sampling through holes. 203. Multiple sampling through holes 203 are evenly distributed around the axis of the inner branch pipe 2. Each sampling through hole 203 penetrates the pipe body II 201 and the flange II 202. The inner branch pipe 2 is coaxial with the outer support pipe 1 and is inserted into the central through hole 103. In this embodiment, there are three sampling cylinders 3, each with a different length. There are also three sampling through holes 203, and each of the three sampling cylinders 3 is inserted into one of the multiple sampling through holes 203. The outer diameter of the pipe body II 201 is smaller than the inner diameter of the central through hole 103. The outer diameter of the flange II 202 is larger than the inner diameter of the central through hole 103. The inner diameter of the central through hole 103 is such that flange II 202 is supported on the top surface of flange I 102. The sampling cylinder 3 includes an outer cylinder 301, a piston head 302, and a handle post 303. The outer cylinder 301 includes a straight section 3011, an inverted conical section 3012, and an upper flange 3013. The straight section 3011, the inverted conical section 3012, and the upper flange 3013 are connected. The inverted conical section 3012 is fixedly connected to the lower end of the straight section 3011, and the upper flange 3013 is fixedly connected to the upper end of the straight section 3011. A sampling hole is provided at the lower end of the inverted conical section 3012. The piston head 302 slides along the axial direction. The piston head 302 is connected to the straight section 3011. A sealing ring is provided on the outer wall of the piston head 302. The side of the sealing ring away from the piston head 302 is abutted against the inner wall of the straight section 3011. The lower end of the handle column 303 is fixedly connected to the top surface of the piston head 302. The length of the handle column 303 is greater than the length of the straight section 3011. The upper end of the handle column 303 extends out of the upper flange 3013. The outer diameter of the straight section 3011 is smaller than the inner diameter of the sampling through hole 203. The straight section 3011 is inserted into the sampling through hole 203. The outer wall of the upper flange 3013 is larger than the inner diameter of the sampling through hole 203. The upper flange 3013 is supported at the upper end of the sampling through hole 203.

[0028] When this utility model is reused, the outer support tube 1 is inserted into the interface of the raw milk storage tank, and flange I 102 is attached to the interface of the raw milk storage tank to prevent the outer support tube 1 from falling into the raw milk. After the outer support tube 1 is in place, the inner branch tube 2 is inserted into the central through hole 103, and flange II 202 is attached to the top surface of flange I 102 to prevent the inner branch tube 2 from falling into the raw milk. After the inner branch tube 2 is in place, the three sampling cylinders 3 are sequentially inserted into the three sampling through holes 203, and the upper flange 3013 is attached. The sampling cylinder 3 is attached to the upper end of the sampling through-hole 203 to prevent it from falling entirely into the raw milk. The three sampling cylinders 3 are positioned such that the straight section 3011 and the inverted conical section 3012 of the latter three sampling cylinders are inserted into the raw milk. Pulling the handle 303 of each sampling cylinder 3 causes the piston head 302 to slide. The piston head 302 slides within the straight section 3011, drawing the raw milk into it, thus completing the sampling process. The three sampling cylinders 3 have different lengths. This allows for sampling of raw milk at different depths. After sampling, the sampling cylinder 3 is pulled out from the sampling through-hole 203, and then the inner branch pipe 2 and the outer support pipe 1 are removed in sequence. It should be noted that the actual length of the sampling cylinder 3 can be selected according to operational needs. The shortest length of the sampling cylinder 3 must ensure that the inverted conical section 3012 is inserted into the raw milk. Since the capacity of the raw milk storage tank differs significantly from the capacity of the straight section 3011, the drop in the raw milk level caused by sampling does not need to be considered. It is also necessary to note... It is important to note that when pulling the handle column 303, the outer cylinder 301 should be prevented from moving with the handle column 303. Generally, the upper flange 3013 should be pressed down before pulling the handle column 303. In addition, in this utility model, it is necessary to avoid the outer support pipe 1 and the inner branch pipe 2 from contacting the raw milk. Therefore, the pipe body I 101 and the pipe body II 201 should not be too long. Generally, the length of the pipe body I 101 should not be greater than the length of the interface of the raw milk storage tank, and the bottoms of the pipe body I 101 and the pipe body II 201 should be flush after they are connected.

[0029] This invention has a simple structure and is easy to use. It can sample raw milk at different depths in a single use, which improves the efficiency of raw milk sampling. It can be assembled by simple plug-in connection, and each part is easy to disassemble, which facilitates cleaning and disinfection after use, thereby avoiding contamination of raw milk. In addition, except for the sampling cylinder 3, the other parts of this invention do not come into contact with raw milk, which also reduces the risk of contamination of raw milk.

[0030] In this embodiment, the side wall of the tube body II201 is provided with multiple rectangular through holes II204, which correspond one-to-one with multiple sampling through holes 203. The side walls of the multiple rectangular through holes II204 and sampling through holes 203 are connected one-to-one. The side wall of the tube body I101 is provided with multiple rectangular through holes I105, which correspond one-to-one with multiple rectangular through holes II204. The multiple rectangular through holes I105 and rectangular through holes II204 are connected one-to-one. The rectangular through holes II204 and rectangular through holes I105 have the same shape. The outer cylinder 301 is made of transparent glass or transparent polypropylene.

[0031] The rectangular through holes I 105 and II 204 are designed to facilitate observation of the inside of the sampling cylinder 3, such as the movement of the handle column 303 and the piston head, or the sampling liquid level of the raw milk. The outer cylinder 301 is made of transparent glass or transparent polypropylene, also for the purpose of facilitating observation of the inside of the sampling cylinder 3.

[0032] In this embodiment, the top surface of flange I 102 is provided with multiple positioning posts 104, which extend out of the top surface of flange I 102. The number of positioning posts 104 is the same as the number of sampling tubes 3. The multiple positioning posts 104 are evenly distributed around the center circumference of flange I 102. The outer wall of flange II 202 is provided with multiple positioning grooves 205, which are evenly distributed around the center circumference of flange II 202. The number of positioning posts 104 and positioning grooves 205 are originally evenly distributed, and the multiple positioning grooves 205 are snapped onto the multiple positioning posts 104 one by one.

[0033] Since rectangular through holes I 105 and II 204 must correspond one-to-one to allow observation of the inside of the sampling tube 3, the connection orientation of the outer support tube 1 and the inner branch tube 2 is required. The positioning column 104 and the positioning groove 205 are set to ensure that the connection orientation of the outer support tube 1 and the inner branch tube 2 meets the usage requirements, thereby ensuring that rectangular through holes I 105 and II 204 correspond one-to-one.

[0034] In this first embodiment, the sampling cylinder 3 includes a handle plate 304, which is fixedly connected to the top of the handle column 303. The handle plate 304 is located above the upper flange 3013, and the outer diameter of the handle plate 304 is larger than the outer diameter of the handle column 303.

[0035] The handle plate 304 is designed to facilitate pulling the handle column 303 by holding the handle plate 304, thereby improving the ease of use of the utility model.

[0036] In this first embodiment, the cross-sectional shape of the upper flange 3013 is a regular hexagon.

[0037] The hexagonal upper flange 3013 is easy for staff to hold, thus facilitating the loading and unloading of the sampling cylinder 3.

[0038] like Figure 11 As shown, in Embodiment 2 of this utility model, a support flange 4 is fixedly connected to the outer wall of the lower end of the upper pipe body I101 based on Embodiment 1. The outer diameter of the support flange 4 is larger than the outer diameter of the flange I102.

[0039] The purpose of setting up the support flange 4 in Embodiment 2 is mainly to address the situation where the inner diameter of the interface of the raw milk storage tank is large, and the flange I102 cannot be directly connected to the interface of the raw milk storage tank. The support flange 4 is then connected to the interface of the raw milk storage tank, thereby preventing the outer support pipe 1 and the inner branch pipe 2 from contacting the raw milk. In actual use, the support flange 4 can also be set as multiple circumferentially distributed support plates.

Claims

1. A raw milk sampling device, characterized in that: It includes an outer support pipe (1), an inner branch pipe (2) and a sampling tube (3). The inner branch pipe (2) is coaxial with the outer support pipe (1). The outer support pipe (1) has a central through hole (103) in the center. The inner branch pipe (2) is inserted into the central through hole (103). The inner branch pipe (2) has multiple sampling through holes (203). The multiple sampling through holes (203) are evenly distributed around the axis of the inner branch pipe (2). There are multiple sampling tubes (3). The number of multiple sampling tubes (3) is the same as the number of multiple sampling through holes (203). The multiple sampling tubes (3) are inserted into the multiple sampling through holes (203) one by one. The lengths of the multiple sampling tubes (3) are all different.

2. The raw milk sampling device according to claim 1, characterized in that: The sampling cylinder (3) includes an outer cylinder (301), a piston head (302), and a handle column (303). The outer cylinder (301) includes a straight section (3011), an inverted conical section (3012), and an upper flange (3013). The straight section (3011), the inverted conical section (3012), and the upper flange (3013) are connected. The inverted conical section (3012) is fixedly connected to the lower end of the straight section (3011), and the upper flange (3013) is fixedly connected to the upper end of the straight section (3011). A sampling hole is provided at the lower end of the inverted conical section (3012). The piston head (302) is slidably connected inside the straight section (3011) along the axial direction. The outer wall of the plug (302) is provided with a sealing ring. The side of the sealing ring away from the piston head (302) is abutted against the inner wall of the straight section (3011). The lower end of the handle column (303) is fixedly connected to the top surface of the piston head (302). The length of the handle column (303) is greater than the length of the straight section (3011). The upper end of the handle column (303) extends out of the upper flange (3013). The outer diameter of the straight section (3011) is smaller than the inner diameter of the sampling through hole (203). The straight section (3011) is inserted into the sampling through hole (203). The outer wall of the upper flange (3013) is larger than the inner diameter of the sampling through hole (203). The upper flange (3013) is supported on the upper end of the sampling through hole (203).

3. The raw milk sampling device according to claim 2, characterized in that: The outer support pipe (1) includes a pipe body I (101) and a flange I (102). The flange I (102) is fixedly connected to the upper end of the pipe body I (101). The outer wall of the flange I (102) is larger than the outer wall of the pipe body I (101). The central through hole (103) penetrates the pipe body I (101) and the flange I (102). The inner branch pipe (2) includes a pipe body II (201) and a flange II (202). The flange II (202) is fixedly connected to the upper end of the pipe body I (101). The outer support pipe (102) includes a pipe body II (201) and a flange II (202 ... 2) Fixed connection to the upper end of pipe body II (201), each sampling through hole (203) penetrates pipe body II (201) and flange II (202). The outer diameter of pipe body II (201) is smaller than the inner diameter of the central through hole (103). Pipe body II (201) is inserted into the central through hole (103). The outer diameter of flange II (202) is larger than the inner diameter of the central through hole (103). Flange II (202) is supported on the top surface of flange I (102).

4. The raw milk sampling device according to claim 3, characterized in that: The tube body II (201) has multiple rectangular through holes II (204) on its side wall. The multiple rectangular through holes II (204) correspond one-to-one with the multiple sampling through holes (203). The side walls of the multiple rectangular through holes II (204) and the multiple sampling through holes (203) are connected one-to-one. The tube body I (101) has multiple rectangular through holes I (105) on its side wall. The multiple rectangular through holes I (105) correspond one-to-one with the multiple rectangular through holes II (204). The multiple rectangular through holes I (105) and the multiple rectangular through holes II (204) are connected one-to-one. The rectangular through holes II (204) and the rectangular through holes I (105) have the same shape. The outer cylinder (301) is made of transparent glass or transparent polypropylene.

5. A raw milk sampling device according to claim 4, characterized in that: The flange I (102) is provided with multiple positioning posts (104) on its top surface. The positioning posts (104) extend out of the top surface of the flange I (102). The number of positioning posts (104) is the same as the number of sampling cylinders (3). The positioning posts (104) are evenly distributed around the center circumference of the flange I (102). The flange II (202) is provided with multiple positioning grooves (205) on its outer wall. The positioning grooves (205) are evenly distributed around the center circumference of the flange II (202). The number of positioning posts (104) and positioning grooves (205) are evenly distributed. The positioning grooves (205) are snapped onto the positioning posts (104) one by one.

6. The raw milk sampling device according to claim 5, characterized in that: The sampling tube (3) includes a handle plate (304), which is fixedly connected to the top of the handle column (303). The handle plate (304) is located above the upper flange (3013), and the outer diameter of the handle plate (304) is larger than the outer diameter of the handle column (303).

7. A raw milk sampling device according to claim 6, characterized in that: A support flange (4) is fixedly connected to the lower outer wall of the pipe body I (101), and the outer diameter of the support flange (4) is larger than the outer diameter of the flange I (102).

8. A raw milk sampling device according to any one of claims 2-7, characterized in that: The upper flange (3013) has a regular hexagonal cross-sectional shape.

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