Automatic sampling and sample reserving detection equipment for edible oil

Abstract

The utility model provides automatic sampling and sample reserving detection equipment for edible oil, and relates to the technical field of edible oil processing, the automatic sampling and sample reserving detection equipment comprises a supporting plate and further comprises a sampling assembly.During sampling, a three-way pipe channel is switched, a second valve is opened, a hydraulic push rod drives a first piston to slide in a first hollow pipe, and negative pressure is generated; edible oil is sucked into a first hollow pipe through a sampling pipe and a connecting pipe, then a second valve is closed, a hydraulic push rod pushes a first piston, the edible oil flows into a second hollow pipe through a liquid feeding pipe, firstly enters a detector for detection and then flows into a sample reserving bottle below for sample reserving, and after sampling is completed, a three-way pipe channel is switched, and the first valve on a cleaning liquid pipe is opened. A hydraulic push rod is started, cleaning liquid in a cleaning liquid box flows into each pipeline through a cleaning liquid pipe, and finally waste liquid is discharged through the bottom of a second hollow pipe, so that orderly sampling, cleaning, sample reserving and detection of the edible oil are realized.

Description

Technical Field

[0001] This utility model relates to the field of edible oil processing technology, and in particular to an automatic sampling and testing device for edible oil. Background Technology

[0002] Edible oil quality and safety is a crucial aspect of the food industry. Sampling and testing help ensure compliance and safety. Traditional sampling and testing methods often rely on manual operation, which is inefficient and prone to errors. To improve testing accuracy and efficiency, an automated edible oil sampling and testing device has been developed. This device enables efficient and accurate oil sampling, retention, and testing, ensuring that edible oil meets quality standards during production, storage, and transportation.

[0003] However, in actual use, the following shortcomings still exist. For example, existing automatic sampling and testing equipment for edible oil cannot achieve orderly sampling, cleaning, retention, and testing of edible oil. If the sampling and cleaning sequence is disordered, direct sampling from uncleaned pipes or containers may lead to the oil sample being mixed with impurities, oxidation products, or microorganisms remaining from previous tests. This may cause the sample to fail to accurately reflect the true quality of the current batch of edible oil, resulting in distorted sampling results and an inability to provide a reliable basis for quality assessment. The lack of orderly process control may cause frequent fault alarms or abnormal situations during the sampling process. When the cleaning process cannot be effectively connected with the sampling, retention, and testing processes, the cleaned pipes and containers may be contaminated again. The disorder of the sampling, cleaning, and retention processes affects the quality of the oil sample, and the sample entering the testing process may contain various interfering factors.

[0004] Therefore, this utility model proposes an automatic sampling and retention testing device for edible oil to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic sampling and testing device for edible oil.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an automatic sampling and retention testing device for edible oil, including a support plate, and further comprising:

[0007] A sampling assembly includes a hydraulic push rod mounted on a support plate, a first piston fixed to the output end of the hydraulic push rod, a first hollow tube fixed to the support plate, the first piston slidably connected inside the first hollow tube, a connecting pipe fixed to the first hollow tube, a connecting block fixed to the connecting pipe, a sampling tube at the top of the connecting block, a second valve on the sampling tube, a liquid delivery pipe on the side of the connecting block away from the connecting pipe, a cleaning liquid pipe at the bottom of the connecting block, a tee pipe rotatably connected inside the connecting block, a cleaning liquid tank at the bottom of the support plate, the cleaning liquid pipe located in the cleaning liquid tank, and a first valve on the cleaning liquid pipe.

[0008] The sample retention assembly includes a second hollow tube disposed on the liquid delivery tube, a detector disposed at the top of the second hollow tube, and a sample retention bottle disposed at the bottom of the second hollow tube.

[0009] Furthermore, a first sealing ring is provided on the first piston, a connecting rod is fixed on the three-way pipe, a drive motor is installed on the support plate, and a first drive wheel is fixed at the output end of the drive motor.

[0010] The beneficial effects of adopting the above-mentioned further scheme are: the first piston is tightly fitted to the inner wall of the first hollow tube through the first sealing ring, ensuring that a stable negative or positive pressure is formed when the hydraulic push rod moves, preventing oil sample leakage. When the hydraulic push rod extends or retracts, the first piston slides in the first hollow tube, driving the oil sample to be drawn in or discharged. The sealing ring reduces frictional resistance and maintains airtightness, ensuring the accuracy of sampling and the reliability of the system.

[0011] Furthermore, a belt is provided on the first transmission wheel, and a second transmission wheel is provided on the belt, the second transmission wheel being fixed to the connecting rod.

[0012] The beneficial effects of adopting the above-mentioned further solution are: the drive motor drives the connecting rod to rotate through the first drive wheel, belt and second drive wheel, thereby controlling the switching angle of the three-way pipe. When the drive motor rotates in the forward and reverse directions, the three-way pipe rotates in the connecting block, which can connect the sampling tube or the cleaning liquid tube, realize the automatic switching of oil sample transportation, testing and cleaning process, and reduce manual intervention.

[0013] Furthermore, a hollow block is fixed inside the second hollow tube, and a movable plate is slidably connected inside the hollow block. A telescopic spring is fixed to the bottom of the movable plate, and the other end of the telescopic spring is fixed to the hollow block.

[0014] The beneficial effects of adopting the above-mentioned further solution are: the movable plate and the telescopic spring inside the hollow block form a buffer adjustment structure. When the hydraulic push rod pulls the first piston to sample, the movable plate compresses the telescopic spring under the pressure of the edible oil and moves upward, driving the connecting column and the second piston to move upward, sealing the hollow block, and ensuring that the edible oil enters the equipment along the sampling tube during sampling. After the pressure disappears, the telescopic spring resets and pushes the movable plate to maintain system stability.

[0015] Furthermore, a connecting post is fixed to the bottom of the movable plate, and a second piston is fixed to the bottom of the connecting post. A second sealing ring is provided on the second piston.

[0016] The beneficial effects of adopting the above-mentioned further solution are: the second sealing ring on the second piston ensures the sealing performance; when the hydraulic push rod pushes the first piston, the second piston moves down under pressure, opening the hollow block passage, and the edible oil flows into the sample bottle through this passage; when the edible oil is extracted, the second piston moves up to seal, preventing the edible oil from flowing back, thus achieving precise control of the sampling and sample retention process.

[0017] Furthermore, a support rod is fixed on the second hollow tube, and a support block is provided on the side of the support rod near the bottom.

[0018] The beneficial effects of adopting the above-mentioned further solution are: the support rod and the support block constitute a support platform for the sample bottle, and the nut adjusts the height of the support block through the thread to adapt to sample bottles of different specifications.

[0019] Furthermore, the sample bottle is mounted on the support block, and a nut is threaded onto the support rod near the bottom of the support block.

[0020] The advantages of adopting the above-mentioned further scheme are: when retaining samples, the oil sample flows into the bottle through the bottom of the second hollow tube, the support structure ensures the stability of the bottle body and prevents it from tipping over or shifting, and at the same time facilitates the quick replacement of sample bottles.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] In this invention, during sampling, the three-way tube channel is switched, the second valve is opened, and the hydraulic push rod drives the first piston to slide inside the first hollow tube, generating negative pressure. Edible oil is drawn into the first hollow tube through the sampling tube and connecting tube. Subsequently, the second valve is closed, and the hydraulic push rod pushes the first piston, allowing the edible oil to flow into the second hollow tube through the liquid delivery tube. First, it enters the detector for testing, and then flows into the sample retention bottle below for retention. After sampling is completed, the three-way tube channel is switched, the first valve on the cleaning liquid tube is opened, and the hydraulic push rod is activated. The cleaning liquid in the cleaning liquid tank flows into various pipes through the cleaning liquid tube, and finally, the waste liquid is discharged through the bottom of the second hollow tube, thus realizing the orderly process of edible oil sampling, cleaning, retention, and testing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an automatic sampling and retention testing device for edible oil according to this utility model;

[0024] Figure 2 This is a schematic diagram of the sampling component structure of an automatic sampling and retention testing device for edible oil according to this utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the connecting block of an automatic sampling and retention testing device for edible oil according to this utility model;

[0026] Figure 4 This is a schematic diagram of the cleaning structure of an automatic sampling and retention testing device for edible oil according to this utility model;

[0027] Figure 5 This is a schematic diagram of the sample retention component structure of an automatic sampling and retention testing device for edible oil according to this utility model.

[0028] Figure label:

[0029] 1. Support plate;

[0030] 2. Sampling assembly; 21. Hydraulic push rod; 22. First piston; 23. First sealing ring; 24. First hollow tube; 25. Connecting pipe; 26. Connecting block; 27. Sampling tube; 28. Liquid delivery pipe; 29. ​​Cleaning liquid pipe; 210. T-joint; 211. Connecting rod; 212. Drive motor; 213. First drive wheel; 214. Belt; 215. Second drive wheel; 216. Cleaning liquid tank; 217. First valve; 218. Second valve;

[0031] 3. Sample retention assembly; 31. Second hollow tube; 32. Detector; 33. Hollow block; 34. Moving plate; 35. Telescopic spring; 36. Connecting column; 37. Second piston; 38. Second sealing ring; 39. Sample retention bottle; 310. Support rod; 311. Support block; 312. Nut. Detailed Implementation

[0032] 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.

[0033] like Figures 1-5 As shown, this embodiment provides a technical solution: an automatic sampling and retention testing device for edible oil, including a support plate 1, and further comprising:

[0034] Sampling assembly 2 includes a hydraulic push rod 21 mounted on a support plate 1. A first piston 22 is fixed to the output end of the hydraulic push rod 21. A first hollow tube 24 is fixed on the support plate 1. The first piston 22 is slidably connected inside the first hollow tube 24. A connecting tube 25 is fixed on the first hollow tube 24. A connecting block 26 is fixed on the connecting tube 25. A sampling tube 27 is provided on the top of the connecting block 26. A second valve 218 is provided on the sampling tube 27. A liquid delivery tube 28 is provided on the side of the connecting block 26 away from the connecting tube 25. A cleaning liquid tube 29 is provided at the bottom of the connecting block 26. A three-way tube 210 is rotatably connected inside the connecting block 26. A cleaning liquid tank 216 is provided at the bottom of the support plate 1. The cleaning liquid tube 29 is located in the cleaning liquid tank 216. A first valve 217 is provided on the cleaning liquid tube 29.

[0035] The sample retention assembly 3 includes a second hollow tube 31 mounted on the liquid delivery tube 28. A detector 32 is mounted on the top of the second hollow tube 31, and a sample retention bottle 39 is mounted on the bottom of the second hollow tube 31. During sampling, the three-way tube 210 is switched, the second valve 218 is opened, and the hydraulic push rod 21 drives the first piston 22 to slide within the first hollow tube 24, generating negative pressure. Edible oil is drawn into the first hollow tube 24 through the sampling tube 27 and connecting tube 25. Subsequently, the second valve 218 is closed, and the hydraulic push rod 21... Rod 21 pushes the first piston 22, and the edible oil flows into the second hollow tube 31 through the liquid delivery pipe 28. It first enters the detector 32 for testing, and then flows into the sample retention bottle 39 below for sampling. After sampling is completed, the three-way pipe 210 is switched, the first valve 217 on the cleaning liquid pipe 29 is opened, and the hydraulic push rod 21 is activated. The cleaning liquid in the cleaning liquid tank 216 flows into each pipe through the cleaning liquid pipe 29. Finally, the waste liquid is discharged through the bottom of the second hollow tube 31, realizing the orderly sampling, cleaning, retention and testing of edible oil.

[0036] The above solutions also have the problem that, when sampling edible oil, the oil cannot be accurately and stably guided into the equipment along the sampling tube 27 during sampling. Figure 1 as well as Figure 3As shown: A first sealing ring 23 is provided on the first piston 22, a connecting rod 211 is fixed on the three-way pipe 210, a drive motor 212 is installed on the support plate 1, and a first drive wheel 213 is fixed to the output end of the drive motor 212. The first piston 22 is tightly fitted to the inner wall of the first hollow tube 24 through the first sealing ring 23, ensuring that a stable negative or positive pressure is formed when the hydraulic push rod 21 moves, preventing oil sample leakage. When the hydraulic push rod 21 extends or retracts, the first piston 22 slides in the first hollow tube 24, driving the oil sample to be sucked in or discharged. The sealing ring reduces frictional resistance and maintains airtightness, ensuring the pumping... To ensure the accuracy and reliability of the sample, a belt 214 is installed on the first transmission wheel 213, and a second transmission wheel 215 is installed on the belt 214. The second transmission wheel 215 is fixed on the connecting rod 211. The transmission motor 212 drives the connecting rod 211 to rotate through the first transmission wheel 213, the belt 214, and the second transmission wheel 215, thereby controlling the switching angle of the three-way pipe 210. When the transmission motor 212 rotates in both directions, the three-way pipe 210 rotates in the connecting block 26, which can connect to the sampling tube 27 or the cleaning liquid tube 29, realizing the automatic switching of oil sample transportation, testing, and cleaning processes, and reducing manual intervention.

[0037] like Figure 1 as well as Figure 5As shown, a hollow block 33 is fixed inside the second hollow tube 31. A movable plate 34 is slidably connected inside the hollow block 33. A telescopic spring 35 is fixed to the bottom of the movable plate 34, and the other end of the telescopic spring 35 is fixed to the hollow block 33. The movable plate 34 and the telescopic spring 35 inside the hollow block 33 form a buffer adjustment structure. When the hydraulic push rod 21 pulls the first piston 22 for sampling, the movable plate 34 compresses the telescopic spring 35 under the pressure of the edible oil and moves upward, driving the connecting column 36 and the second piston 37 to move upward, sealing the hollow block 33, and ensuring that the edible oil enters the equipment along the sampling tube 27 during sampling. After the pressure disappears, the telescopic spring 35 returns to its original position and pushes the movable plate 34 to maintain system stability. A connecting column 36 is fixed to the bottom of the movable plate 34, and a second piston 37 is fixed to the bottom of the connecting column 36. A second sealing ring 38 is provided on the second piston 37 to ensure sealing. When the hydraulic push rod 21 pushes the first piston 22, the second piston 37 moves downward under pressure, opening the passage of the hollow block 33, through which edible oil flows into the sample bottle 39. When the edible oil is extracted, the second piston 37 moves upward to seal, preventing the edible oil from flowing back, thus achieving precise control of the sampling and retention process. A support rod 310 is fixed on the second hollow tube 31, and a support block 311 is set on the side of the support rod 310 near the bottom. The support rod 310 and the support block 311 form a support platform for the sample bottle 39. The nut 312 adjusts the height of the support block 311 through the thread to adapt to different specifications of the sample bottle 39. The sample bottle 39 is set on the support block 311. The nut 312 is threadedly connected to the side of the support rod 310 near the bottom of the support block 311. When the sample is retained, the oil sample flows into the bottle through the bottom of the second hollow tube 31. The support structure ensures the stability of the bottle body, preventing it from tipping over or shifting, and at the same time facilitates quick replacement of the sample bottle.

[0038] like Figures 1-5As shown, during sampling, the drive motor 212 drives the first drive wheel 213, which in turn drives the second drive wheel 215 via the belt 214, causing the connecting rod 211 to rotate. This switches the three-way pipe 210 to the channel connecting to the sampling pipe 27, opening the second valve 218. At this time, the hydraulic push rod 21 drives the first piston 22 to move backward within the first hollow pipe 24. The first sealing ring 23 ensures a seal, creating a negative pressure inside the pipe. Edible oil is then drawn into the first hollow pipe 24 through the sampling pipe 27, the three-way pipe 210, and the connecting pipe 25. Subsequently, the valve is closed... The second valve 218 is closed, and the hydraulic push rod 21 pushes the first piston 22 forward. The edible oil flows into the second hollow tube 31 through the liquid delivery pipe 28, first entering the top detector 32 for component and impurity testing. After testing, the edible oil continues downward and flows into the sample retention bottle 39 below to complete the sampling. After sampling, the drive motor 212 is activated again, switching the three-way pipe 210 to the channel connecting to the cleaning liquid pipe 29, opening the first valve 217, and starting the hydraulic push rod 21. The cleaning liquid in the cleaning liquid tank 216 flows through the cleaning liquid pipe... The tee pipe 210, which flows into the connecting block 26, then through the connecting pipe 25, the first hollow pipe 24, the liquid delivery pipe 28, and other pipelines, flushes the inside of the equipment. Waste liquid is discharged from the bottom of the second hollow pipe 31, ensuring equipment cleanliness and avoiding cross-contamination of samples. Inside the second hollow pipe 31, the structure composed of the hollow block 33, the moving plate 34, and the telescopic spring 35 plays a key role. During sampling, the pressure of the edible oil causes the moving plate 34 to compress the telescopic spring 35 and move upward, driving the connecting column 36 and the second piston 37 to move upward. The second sealing ring 38 on piston 37 ensures sealing. When the hydraulic push rod 21 pushes the first piston 22 to deliver liquid, the second piston 37 is pressed down and opens the passage of the hollow block 33, allowing the edible oil to flow smoothly into the sample bottle 39. The support rod 310, support block 311 and nut 312 on the second hollow tube 31 can change the height of the support block 311 by adjusting the nut 312 to adapt to different specifications of sample bottles 39, ensuring that the sample bottle 39 is placed stably during the sample receiving process, preventing it from tipping over, and ensuring the smooth progress of the sample retention process.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An automatic sampling and retention testing device for edible oil, comprising a support plate (1), characterized in that, Also includes: A sampling assembly (2) includes a hydraulic push rod (21) mounted on a support plate (1), a first piston (22) fixed to the output end of the hydraulic push rod (21), a first hollow tube (24) fixed on the support plate (1), the first piston (22) being slidably connected inside the first hollow tube (24), a connecting tube (25) fixed on the first hollow tube (24), a connecting block (26) fixed on the connecting tube (25), and a sampling tube (2) disposed on the top of the connecting block (26). 7) A second valve (218) is provided on the sampling tube (27), a liquid delivery tube (28) is provided on the side of the connecting block (26) away from the connecting tube (25), a cleaning liquid tube (29) is provided at the bottom of the connecting block (26), a three-way tube (210) is rotatably connected inside the connecting block (26), a cleaning liquid tank (216) is provided at the bottom of the support plate (1), the cleaning liquid tube (29) is provided in the cleaning liquid tank (216), and a first valve (217) is provided on the cleaning liquid tube (29); The sample retention component (3) includes a second hollow tube (31) disposed on the liquid delivery tube (28), a detector (32) is disposed at the top of the second hollow tube (31), and a sample retention bottle (39) is disposed at the bottom of the second hollow tube (31).

2. The automatic sampling and testing equipment for edible oil according to claim 1, characterized in that: The first piston (22) is provided with a first sealing ring (23), the three-way pipe (210) is fixed with a connecting rod (211), the support plate (1) is equipped with a drive motor (212), and the output end of the drive motor (212) is fixed with a first drive wheel (213).

3. The automatic sampling and testing equipment for edible oil according to claim 2, characterized in that: The first drive wheel (213) is provided with a belt (214), and the belt (214) is provided with a second drive wheel (215), which is fixed on the connecting rod (211).

4. The automatic sampling and testing equipment for edible oil according to claim 1, characterized in that: A hollow block (33) is fixed inside the second hollow tube (31), and a movable plate (34) is slidably connected inside the hollow block (33). A telescopic spring (35) is fixed at the bottom of the movable plate (34), and the other end of the telescopic spring (35) is fixed on the hollow block (33).

5. The automatic sampling and testing equipment for edible oil according to claim 4, characterized in that: The bottom of the movable plate (34) is fixed with a connecting column (36), and the bottom of the connecting column (36) is fixed with a second piston (37), and a second sealing ring (38) is provided on the second piston (37).

6. The automatic sampling and testing equipment for edible oil according to claim 1, characterized in that: A support rod (310) is fixed on the second hollow tube (31), and a support block (311) is provided on the side of the support rod (310) near the bottom.

7. The automatic sampling and testing equipment for edible oil according to claim 6, characterized in that: The sample bottle (39) is mounted on the support block (311), and a nut (312) is threaded onto the side of the support rod (310) near the bottom of the support block (311).

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