A quantitative milk sampling device

Abstract

The utility model discloses a kind of quantitative detection's milk sampling device, it is related to sampling device technical field.The utility model includes graduated tube and the elbow pipe being communicated and being arranged at the bottom of graduated tube, further include: quantitative sampling part, the quantitative sampling part is arranged on graduated tube;Non-return flow part, the non-return flow part is arranged in elbow pipe;Adjusting part, the adjusting part is installed on elbow pipe;The non-return flow part includes elastic assembly, the elastic assembly is arranged on the inner wall of elbow pipe;Sealing assembly, the sealing assembly is arranged in elbow pipe;The elastic assembly includes the support of sliding connection on the inner wall of elbow pipe, and the bottom of the support is fixedly connected with telescopic link.The utility model sets up non-return flow part, solved the existing sampling device when using, it is inconvenient to close pipeline when sampling stops, it is not conducive to prevent milk backflow, difficult to ensure that sampling amount is accurate, backflow can lead to sample pollution and sampling amount is insufficient, to affect the accuracy of detection problem.

Description

Technical Field

[0001] This utility model belongs to the field of sampling device technology, and in particular relates to a milk sampling device for quantitative detection. Background Technology

[0002] With the rapid development of the dairy industry and the continuous improvement of food safety standards, milk quality testing has become a key link in the dairy production process. As a nutrient-rich liquid food, the uniformity of milk composition is crucial to the accuracy of test results. In current milk quality testing, quantitative sampling devices are key equipment for obtaining representative samples, and their performance directly affects the reliability of subsequent test data.

[0003] However, existing sampling devices are not convenient to close the pipeline when sampling stops, which is not conducive to preventing milk backflow and makes it difficult to ensure accurate sampling. Backflow can lead to sample contamination and insufficient sampling, thus affecting the accuracy of the test. Utility Model Content

[0004] The purpose of this invention is to provide a milk sampling device for quantitative detection. By setting a backflow preventer, it solves the problems of existing sampling devices, such as the inconvenience of closing the pipe when sampling stops, which makes it difficult to prevent milk backflow, making it difficult to ensure the accuracy of the sampling amount, and the backflow leading to sample contamination and insufficient sampling amount, thus affecting the accuracy of the detection.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a quantitative milk sampling device, including a graduated tube and a bent tube connected to the bottom of the graduated tube, and further including: a quantitative sampling part, which is disposed on the graduated tube; a check flow part, which is disposed inside the bent tube; an adjustment part, which is installed on the bent tube; the check flow part includes an elastic component, which is disposed on the inner wall of the bent tube; a sealing component, which is disposed inside the bent tube; the elastic component includes a bracket slidably connected to the inner wall of the bent tube, a telescopic rod fixedly connected to the bottom of the bracket, and a spring sleeved on the outer wall of the telescopic rod; the top of the spring is fixedly connected to the bracket, and the elastic component, through the cooperation of the bracket, the telescopic rod and the spring, can drive the sealing component to move according to the change of air pressure in the graduated tube, providing power for milk to enter the graduated tube and for the subsequent resetting of the sealing block, ensuring the unidirectional flow basis during sampling.

[0006] Furthermore, the sealing assembly includes a sealing block fixedly connected to the bottom of the telescopic rod, the top of the sealing block being fixedly connected to a spring, a sealing ring being fixedly connected to the inner wall of the bend, and a protective component being provided between the bracket and the sealing block; the outer wall of the sealing block contacts the inner wall of the sealing ring, and the protective component includes a telescopic protective cover fixedly connected to the bottom of the bracket, the bottom of the telescopic protective cover being fixedly connected to the sealing block; the telescopic protective cover is fitted onto the telescopic rod and the spring, and the sealing assembly achieves a sealing effect by means of the contact and separation between the sealing block and the sealing ring on the inner wall of the bend, preventing milk from entering during sampling and preventing backflow after sampling. At the same time, the telescopic protective cover protects the telescopic rod and the spring from milk contamination, ensuring accurate sampling and component durability.

[0007] Furthermore, the quantitative sampling unit includes a piston disposed on the inner wall of the graduated tube, a piston rod fixedly connected to the top of the piston, and a handle fixedly connected to the top of the piston rod; the outer wall of the piston is in contact with the graduated tube.

[0008] Furthermore, the adjustment unit includes a guide assembly mounted on the support; and an adjustment assembly mounted on the bend. The guide assembly includes a slide rod extending through the support, with a limit block fixedly connected to the bottom of the slide rod. A flexible tube is sleeved on the outer wall of the bend. The slide rod is slidably connected to the support, and the guide assembly guides the movement of the support through the slide rod to prevent the support from shifting and affecting the seal. The limit block prevents the slide rod from detaching, and the flexible tube facilitates the introduction of milk into the bend, providing support for stable operation of the device and convenient sampling.

[0009] Furthermore, the adjustment assembly includes a threaded rod passing through the support. A second telescopic protective cover and a third telescopic protective cover are fitted onto the outer wall of the threaded rod. The top of the second telescopic protective cover is fixedly connected to the inner wall of the bend, and the bottom of the third telescopic protective cover is fixedly connected to a sealing block. The top of the threaded rod extends rotatably out of the bend. The sides of the second and third telescopic protective covers that are close to each other are fixedly connected to the support. The bottom of the third telescopic protective cover is sealed. The adjustment assembly drives the support to rise and fall by rotating the threaded rod, controlling the opening and closing of the sealing block and sealing ring to achieve sample discharge. The second and third telescopic protective covers protect the threaded rod and internal structure from contamination, ensuring smooth adjustment operation and device sealing.

[0010] This utility model has the following beneficial effects:

[0011] 1. By setting up a backflow preventer, during sampling, the support, telescopic rod, and spring of the elastic component work together to drive the sealing component to move according to the air pressure change in the graduated tube. The sealing block of the sealing component cooperates with the sealing ring on the inner wall of the bend tube. During sampling, it can be opened to allow milk to enter the graduated tube. After sampling stops, it can quickly close the sealing tube, effectively preventing the milk that has been sucked in from flowing back into the original container, ensuring the accuracy of the sampling amount, and avoiding sample contamination or insufficient sampling amount caused by backflow. At the same time, the protective component can protect the internal components from milk contamination and extend the service life of the component.

[0012] 2. By setting an adjustment part, the limit block can prevent the slide bar from disengaging from the bracket during adjustment, and the hose can easily introduce milk into the bend. The threaded rod of the adjustment component can drive the bracket to rise and fall by rotating, thereby controlling the opening and closing of the sealing block and sealing ring. The discharge can be completed without disassembling the device, which simplifies the process of transferring the sample to the testing stage after sampling and ensures the continuity and convenience of quantitative sampling and subsequent testing operations.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial cross-sectional view of the anti-backflow section of this utility model;

[0017] Figure 3 This is a partial cross-sectional view of the elastic component of this utility model;

[0018] Figure 4 This is a partial cross-sectional view of the sealing assembly of this utility model;

[0019] Figure 5 This is a partial cross-sectional view of the quantitative sampling section of this utility model;

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Quantitative sampling section; 111. Graduated tube; 112. Bend; 113. Piston; 114. Piston rod; 115. Handle; 2. Check valve section; 21. Elastic component; 211. Bracket; 212. Telescopic rod; 213. Spring; 22. Sealing component; 221. Sealing block; 222. Sealing ring; 223. Telescopic protective cover one; 3. Adjustment section; 31. Guide component; 311. Slide rod; 312. Limiting block; 313. Hose; 32. Adjustment component; 321. Threaded rod; 322. Telescopic protective cover two; 323. Telescopic protective cover three. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 As shown, this utility model is a milk sampling device for quantitative detection, including a graduated tube 111 and a bent tube 112 connected to the bottom of the graduated tube 111. It also includes: a quantitative sampling part 1, which is disposed on the graduated tube 111; a backflow prevention part 2, which is disposed inside the bent tube 112; and an adjustment part 3, which is installed on the bent tube 112. The quantitative sampling part 1 includes a piston 113 disposed on the inner wall of the graduated tube 111. A piston rod 114 is fixedly connected to the top of the piston 113, and a handle 115 is fixedly connected to the top of the piston rod 114. The outer wall of the piston 113 is in contact with the graduated tube 111.

[0024] The backflow prevention section 2 includes an elastic component 21 disposed on the inner wall of the bend 112; and a sealing component 22 disposed inside the bend 112. The elastic component 21 includes a bracket 211 slidably connected to the inner wall of the bend 112, a telescopic rod 212 fixedly connected to the bottom of the bracket 211, and a spring 213 sleeved on the outer wall of the telescopic rod 212. The top of the spring 213 is fixedly connected to the bracket 211. The sealing component 22 includes a sealing block 221 fixedly connected to the bottom of the telescopic rod 212, and the top of the sealing block 221 is fixedly connected to the spring 213. The inner wall of the bend 112 is fixedly... A protective component is provided between the support 211 and the sealing block 221, connected by a sealing ring 222. The outer wall of the sealing block 221 contacts the inner wall of the sealing ring 222. The protective component includes a telescopic protective cover 223 fixedly connected to the bottom of the support 211. The bottom of the telescopic protective cover 223 is fixedly connected to the sealing block 221. The telescopic protective cover 223 is fitted onto the telescopic rod 212 and the spring 213. By setting the backflow prevention part 2, the pipeline can be closed when sampling stops to prevent milk backflow, thereby ensuring accurate sampling and avoiding backflow that could lead to sample contamination and insufficient sampling, thus ensuring the accuracy of the test.

[0025] The adjusting part 3 includes a guide assembly 31, which is mounted on the bracket 211; and an adjusting assembly 32, which is mounted on the bend 112. The guide assembly 31 includes a slide rod 311 that passes through the bracket 211, with a limit block 312 fixedly connected to the bottom of the slide rod 311. A flexible hose 313 is sleeved on the outer wall of the bend 112. The slide rod 311 is slidably connected to the bracket 211. The adjusting assembly 32 includes a threaded rod 321 that passes through the bracket 211, with a telescopic protective cover 322 sleeved on the outer wall of the threaded rod 321. The top of the third protective cover 323 and the second telescopic protective cover 322 are fixedly connected to the inner wall of the bend 112, and the bottom of the third telescopic protective cover 323 is fixedly connected to the sealing block 221. The top of the threaded rod 321 extends rotatably to the outside of the bend 112. The sides of the second telescopic protective cover 322 and the third telescopic protective cover 323 that are close to each other are fixedly connected to the bracket 211. The bottom of the third telescopic protective cover 323 is sealed. By setting the adjustment part 3, the material can be discharged without disassembling the device, which simplifies the process of transferring the sample to the testing stage after sampling and ensures the continuity and convenience of quantitative sampling and subsequent testing operations.

[0026] A specific application of this embodiment is as follows: During use, the bottom of the flexible tube 313 is immersed in the milk to be sampled. The handle 115 is pulled upwards, causing the handle 115 to drive the piston 113 upwards via the piston rod 114, reducing the air pressure inside the graduated tube 111. This causes the sealing block 221 to move upwards via the bend in the tube 112. At this time, the telescopic rod 212, spring 213, and telescopic protective cover 223 are all compressed. Milk flows upwards from the gap between the sealing block 221 and the sealing ring 222, entering the graduated tube 111 through the bend in the tube 112. Once the milk in the graduated tube 111 reaches the designated mark, the handle 115 is stopped. The spring 213 then rebounds, causing all components to reset. 21 During this process, the milk is fitted with the sealing ring 222 to prevent backflow of the milk. When the milk is discharged from the graduated tube 111, the threaded rod 321 is rotated to raise the bracket 211. The bracket 211 raises the sealing block 221 through the telescopic rod 212, causing the sealing block 221 and the sealing ring 222 to separate. Then, the handle 115 is pushed towards the bottom of the graduated tube 111. The handle 115 pushes the piston 113 towards the bottom of the graduated tube 111 through the piston rod 114, thereby squeezing out the milk in the graduated tube 111 to complete the discharge. After the milk is completely squeezed out, it is tested to achieve quantitative detection. After cleaning the equipment, the threaded rod 321 is reversed to reset the components of the device.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A milk sampling device for quantitative detection, comprising a graduated tube (111) and a bent tube (112) connected to the bottom of the graduated tube (111), characterized in that, Also includes: A quantitative sampling unit (1) is provided on a graduated tube (111); A backflow preventer (2) is provided inside the bend (112); Adjustment part (3), said adjustment part (3) is installed on the bend (112); The backflow prevention section (2) includes an elastic component (21) disposed on the inner wall of the bend (112); and A sealing assembly (22) is disposed within the bend (112); The elastic component (21) includes a bracket (211) slidably connected to the inner wall of the bend (112), a telescopic rod (212) is fixedly connected to the bottom of the bracket (211), and a spring (213) is sleeved on the outer wall of the telescopic rod (212). The top of the spring (213) is fixedly connected to the bracket (211).

2. The milk sampling device for quantitative detection according to claim 1, characterized in that, The quantitative sampling unit (1) includes a piston (113) disposed on the inner wall of the graduated tube (111), a piston rod (114) is fixedly connected to the top of the piston (113), and a handle (115) is fixedly connected to the top of the piston rod (114). The outer wall of the piston (113) is in contact with the graduated tube (111).

3. The milk sampling device for quantitative detection according to claim 2, characterized in that, The adjustment part (3) includes a guide assembly (31) disposed on the bracket (211); and Adjustment assembly (32) is mounted on the bend (112).

4. The milk sampling device for quantitative detection according to claim 3, characterized in that, The sealing assembly (22) includes a sealing block (221) fixedly connected to the bottom of the telescopic rod (212), the top of the sealing block (221) being fixedly connected to the spring (213), a sealing ring (222) being fixedly connected to the inner wall of the bend (112), and a protective component being provided between the bracket (211) and the sealing block (221). The outer wall of the sealing block (221) is in contact with the inner wall of the sealing ring (222).

5. The milk sampling device for quantitative detection according to claim 4, characterized in that, The guide assembly (31) includes a slide rod (311) that runs through the bracket (211), a limit block (312) that is fixedly connected to the bottom of the slide rod (311), and a flexible tube (313) that is sleeved on the outer wall of the bend (112). The slide rod (311) is slidably connected to the bracket (211).

6. The milk sampling device for quantitative detection according to claim 5, characterized in that, The adjustment assembly (32) includes a threaded rod (321) that passes through the bracket (211). The outer wall of the threaded rod (321) is fitted with a telescopic protective cover two (322) and a telescopic protective cover three (323). The top of the telescopic protective cover two (322) is fixedly connected to the inner wall of the bend (112), and the bottom of the telescopic protective cover three (323) is fixedly connected to the sealing block (221). The top of the threaded rod (321) extends rotatably to the outside of the bend (112). Among them, the telescopic protective cover two (322) and telescopic protective cover three (323) are fixedly connected to the bracket (211) on the side that is close to each other, and the bottom of the telescopic protective cover three (323) is sealed.

7. The milk sampling device for quantitative detection according to claim 6, characterized in that, The protective component includes a telescopic protective cover (223) fixedly connected to the bottom of the bracket (211), and the bottom of the telescopic protective cover (223) is fixedly connected to the sealing block (221). Among them, the telescopic protective cover (223) is fitted onto the telescopic rod (212) and the spring (213).

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