Automatic screening type sugar substitute detection device and use method thereof

Abstract

The present invention relates to the technical field of sugar substitute detection, and more specifically, to an automatic screening type sugar substitute detection device and a method of using the same. The device comprises a main pipe sleeve, in which a rotatable main shaft is coaxially arranged; and a sampling bottle, which is threadedly connected to the main shaft. After the connection, the main pipe sleeve is used for hand holding; and the sampling bottle is used for sampling. In the present invention, sampling is directly performed using a sampling bottle, which not only realizes sampling, but also can store the sugar substitute sample after sampling, thereby eliminating the need for an intermediate pipe connected to a sample storage container, and solving the problem that the existence of the sampling pipe affects the purity of the sample and increases the replacement cost.

Description

Technical Field

[0001] The present invention relates to the technical field of sugar substitute detection, in particular to an automatic screening type sugar substitute detection device and a use method thereof. Background Art

[0002] Sugar substitute is a compound sweetener made of erythritol and other high-intensity sweeteners. It needs to be made through physical mixing, heating and melting or water melting, cooling and molding. During the production process, it is necessary to sample and test the molten sugar substitute liquid to ensure the representativeness and accuracy of the test results. The purpose of sampling is to obtain a small sample from the whole, so that the characteristics of the whole can be inferred.

[0003] Currently, a sampling pipe is connected to a sample storage container to extract liquid from the storage container into the sample storage container. Generally, in order to ensure the purity of the sample, the sampling pipe and the sample storage container are disposable items. In fact, the sampling pipe will still be connected to multiple sample storage containers during one use, so the existence of the sampling pipe will still affect the purity of the sample and increase the replacement cost.

[0004] Secondly, if you want to automatically screen the sugar substitute liquid, you need to connect a filter component to the sampling pipeline. When the sampling pipeline is connected to multiple sample storage containers during one use, its automatic screening ability will gradually decrease or even become blocked. Summary of the invention

[0005] The object of the present invention is to provide an automatic screening type sugar substitute detection device and a method of using the same to solve the problems to be solved by the above-mentioned background technology.

[0006] To achieve the above object, one of the objects of the present invention is to provide an automatic screening type sugar substitute detection device, which includes a main pipe sleeve, wherein a main shaft capable of rotating is coaxially arranged in the main pipe sleeve;

[0007] It also includes a sampling bottle, which is threadedly connected to the main shaft. After the connection:

[0008] The main tube sleeve is used for hand holding;

[0009] The sampling bottle is used for sampling;

[0010] After the sampling is completed, the main shaft rotates to make the sampling bottle slide upward along the inside of the main pipe sleeve, and the sampling bottle is temporarily stored inside the main pipe sleeve for subsequent detection;

[0011] Among them, a plurality of sampling ports are opened on the outer wall of the sampling bottle, and a sealing plate is arranged outside the sampling port. The sealing plate is used to prevent particles suspended in the sugar substitute liquid from entering the sampling bottle to improve the purity of the sampling.

[0012] As a further improvement of the technical solution, the top end of the sealing plate is connected to the sample inlet, and the bottom end is tilted outward.

[0013] As a further improvement of the technical solution, a top sleeve is provided on the top of the main sleeve, a top plate is provided on the top of the top sleeve, a motor housing is provided on the top plate, a micro motor is provided inside the motor housing, and an output shaft of the micro motor is coaxially connected with the main shaft;

[0014] A button is arranged on the top of the motor housing, and the button is electrically connected to the micro motor. As the pressing force increases, the rotation speed of the output shaft of the micro motor increases accordingly.

[0015] As a further improvement of the technical solution, a "U"-shaped groove is provided on one side of the sampling bottle, and the semicircular groove at the inner end of the "U"-shaped groove is coaxial with the center of the sampling bottle;

[0016] An internal threaded portion is provided on the inner wall of the semicircular groove, an external threaded portion is provided at the bottom of the main shaft, and the external threaded portion is threadedly connected with the internal threaded portion;

[0017] Wherein, a guide plate is arranged inside the main pipe sleeve, and the guide plate is used to connect with the "U"-shaped groove to guide the sampling bottle sliding upward along the inside of the main pipe sleeve.

[0018] As a further improvement of the technical solution, a circle of inner edge is provided in the injection port for fitting with the sealing plate.

[0019] As a further improvement of the technical solution, the top tube sleeve is a semi-enclosed cylindrical structure, which has a bottle taking port on the side facing the guide plate, wherein:

[0020] The angle formed by the line connecting the two ends of the top sleeve and the center of the circle is less than 180°;

[0021] Both ends of the main pipe sleeve are made of flexible materials.

[0022] As a further improvement of the technical solution, the top plate is an irregular circular plate, and a reserved gap is formed between the top pipe sleeve.

[0023] As a further improvement of the technical solution, bottom guide grooves are provided on both sides of the bottle taking opening on the outer wall of the main pipe sleeve, and the bottom guide grooves extend upward;

[0024] The top pipe sleeve is provided with a top guide groove connected with the bottom guide groove, wherein a portion of the surface of the sampling bottle in the main pipe sleeve is exposed through the bottom guide groove and the top guide groove;

[0025] A notch B is arranged on one side of the top guide groove facing the bottle taking opening, adjacent to the top end thereof, and a notch A is formed.

[0026] As a further improvement of the technical solution, two of the injection ports are respectively arranged corresponding to the bottom guide grooves on both sides, and the outer walls of the sealing plates corresponding to the two injection ports are elastic and outwardly protruding triangular structures, wherein:

[0027] When the internal threaded portion is about to detach from the external threaded portion, the top of the sealing plate exceeds the bottom edge of the bottom guide groove, and the sampling bottle is driven to actively detach from the external threaded portion by means of the vertical component of the reaction force generated by the bottom edge of the bottom guide groove when the sealing plate returns to its initial shape.

[0028] The second object of the present invention is to provide a method for detecting using the above-mentioned automatic screening type sugar substitute detection device, comprising the following steps:

[0029] S1. Prepare the main pipe set, including:

[0030] Determine the number of detection time nodes and prepare corresponding number of main pipe sets according to the number of time nodes;

[0031] S2. Prepare the sampling bottle, including:

[0032] Prepare the corresponding number of sampling bottles according to the total number of sampling times;

[0033] S3. Sampling a time node, including:

[0034] Connect the sampling bottle to the main shaft, hold the main pipe sleeve, and take samples through the sampling bottle and store them;

[0035] Then the sampling bottle is driven upward by the main shaft so that the sampling bottle is temporarily stored in the main pipe sleeve. The first sampling is completed at this time point;

[0036] Among them, a main pipe sleeve represents a time node, and the sampling bottle in the main pipe sleeve represents the sample obtained at the node;

[0037] Repeat the above sampling process until the number of samplings required for the time node is completed;

[0038] S4, repeat S3 until all time nodes are sampled;

[0039] S5. When testing the samples, take out the sampling bottle in the main tube sleeve to test the samples collected at the same time point.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] 1. In the automatic screening type sugar substitute detection equipment and the use method thereof, sampling is directly performed using a sampling bottle, which not only realizes sampling, but also can store the sugar substitute sample after sampling, thereby eliminating the need for an intermediate pipeline connecting the sample storage container, solving the problem that the existence of the sampling pipeline affects the purity of the sample and increases the replacement cost;

[0042] Secondly, the sealing plate can automatically filter the sugar substitute liquid entering the injection port to prevent some larger particles suspended in the sugar substitute liquid from entering the sampling bottle, thereby improving the purity of the sampling. If necessary, a filter can be set in the gap between the sealing plate and the injection port, and it can also be used one-to-one for the sampling bottle, and the problem of reduced screening ability due to multiple uses will not occur.

[0043] 2. In the automatic screening type sugar substitute detection equipment and its use method, a time node is represented by a main pipe sleeve, so there is no need to label the sampling bottle with the sugar substitute liquid attached, and the main pipe sleeve can be directly labeled. This solves the problem of labeling difficulties, and all samples at the time node can be tested directly by taking the main pipe sleeve, which is more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0045] Figure 2 For the present invention Figure 1 Enlarged view of the structure at location I.

[0046] Figure 3 It is a schematic diagram of the composition structure of the sampling bottle of the present invention.

[0047] Figure 4 For the present invention Figure 3 Enlarged view of the structure at location II.

[0048] Figure 5 It is a schematic diagram of the structure of the top plate and the first flexible plate of the present invention in a top view.

[0049] Figure 6 This is a schematic diagram of the working principle of the detection device of the present invention.

[0050] Figure 7 This is the second schematic diagram of the working principle of the detection device of the present invention.

[0051] Figure 8 The third schematic diagram of the working principle of the detection device of the present invention.

[0052] Fig. 9 The fourth schematic diagram of the working principle of the detection device of the present invention.

[0053] The meaning of each number in the figure is:

[0054] 100, main pipe sleeve; 110, top pipe sleeve; 111, top plate; 1111, reserved gap; 112, bottle taking mouth; 113, top guide groove; 120, motor housing; 121, button; 130, bottom guide groove; 140, main shaft; 141, external threaded part; 150, guide plate;

[0055] 200, sampling bottle; 210, "U"-shaped groove; 211, internal threaded portion; 220, sampling port; 221, sample collecting plate; 230, injection port; 231, sealing plate; 232, inner edge. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] See also Figure 1 As shown, the present embodiment provides an automatic screening type sugar substitute detection device, which realizes detection by sampling liquid sugar substitutes, and specifically comprises a main pipe sleeve 100 and a sampling bottle 200. A rotatable main shaft 140 is coaxially arranged in the main pipe sleeve 100, and the main shaft 140 is threadedly connected to the sampling bottle 200. At this time, the main pipe sleeve 100 is used for hand holding, and the sampling bottle 200 is used for sampling. After the sampling is completed, the sampling bottle 200 is slid upward along the inside of the main pipe sleeve 100 by rotating the main shaft 140, and then the sampling bottle 200 is temporarily stored in the inside of the main pipe sleeve 100 for subsequent detection. At this time, the first sampling is completed, and then a new sampling bottle 200 is used for sampling again.

[0058] See also Figure 3 As shown, a plurality of injection ports 230 (the specific number is determined according to actual needs) are provided on the outer wall of the sampling bottle 200, and a sealing plate 231 is provided outside the injection port 230. The top end of the sealing plate 231 is connected to the injection port 230, and the bottom end is tilted outward. When the injection port 230 enters below the sugar substitute liquid level, the sugar substitute liquid is affected by atmospheric pressure. When the gas inside the sampling bottle 200 is discharged or the sugar substitute liquid enters, the internal air pressure will decrease, and the external air pressure will push the sugar substitute liquid into the sampling bottle 200. The sugar substitute liquid will also flow downward under the action of gravity. The injection port 230 is located below the sugar substitute liquid level. The sugar substitute liquid will be affected by gravity and flow into the sampling bottle 200.

[0059] Regardless of the reason, when the sugar substitute liquid is being sucked into the sampling bottle 200, the sealing plate 231 can automatically filter the sugar substitute liquid entering the injection port 230 to prevent some larger particles suspended in the sugar substitute liquid from entering the sampling bottle 200, thereby improving the purity of the sampling. If necessary, a filter can be set in the gap between the sealing plate 231 and the injection port 230.

[0060] For further information, see Figure 1 As shown, a top pipe sleeve 110 is arranged on the top of the main pipe sleeve 100, a top plate 111 is arranged on the top of the top pipe sleeve 110, a motor housing 120 is arranged on the top plate 111, a micro motor is arranged inside the motor housing 120, and its output shaft is coaxially connected with the main shaft 140, a button 121 is arranged on the top of the motor housing 120, the button 121 is electrically connected to the micro motor, and as the pressing force increases, the rotation speed of the micro motor output shaft will also increase, thereby improving the controllability of the equipment.

[0061] In addition, combined Figure 1 and Figure 3 As shown, a "U"-shaped groove 210 is provided on one side of the sampling bottle 200, and the semicircular groove at the inner end of the "U"-shaped groove 210 is coaxial with the center of the sampling bottle 200, and an internal threaded portion 211 is provided on the inner wall of the semicircular groove, and an external threaded portion 141 is provided at the bottom of the main shaft 140, and the external threaded portion 141 is threadedly connected with the internal threaded portion 211;

[0062] In addition, a guide plate 150 is disposed in the main pipe sleeve 100 .

[0063] At this point, you can sample the sugar substitute liquid, see Figure 6 As shown, first take out a new sampling bottle 200, then align the "U"-shaped groove 210 of the sampling bottle 200 with the guide plate 150, press the button 121 lightly, so that the main shaft 140 rotates at a low speed, the external thread part 141 and the internal thread part 211 are engaged, and then the sampling bottle 200 moves up along the main shaft 140, and the "U"-shaped groove 210 is inserted into the guide plate 150, and the guide plate 150 is connected with the "U"-shaped groove 210 to guide the sampling bottle 200 sliding upward along the inside of the main sleeve 100.

[0064] Due to the obstruction of the sealing plate 231 and the limited driving force, the sampling bottle 200 will pause. At this time, stop pressing the button 121, hold the main sleeve 100 with your hand to bring the sampling bottle 200 close to the sugar substitute liquid to be sampled and tested, and use the sampling bottle 200 to take samples, that is, the sugar substitute liquid mentioned above is sucked into the sampling bottle 200. It can be seen that the sampling bottle 200 can not only realize sampling, but also store the sugar substitute sample after sampling, eliminating the need for an intermediate pipe connected to the sample storage container.

[0065] Moreover, after sampling is completed, Figure 7As shown, the button 121 is pressed again. At this time, the rotation speed of the main shaft 140 increases, and the sampling bottle 200 continues to move upward. It should be noted that the outer diameter of the sampling bottle 200 is adapted to the inner diameter of the main sleeve 100. When it continues to move upward, the inner edge of the main sleeve 100 will squeeze the sealing plate 231 to block the sampling port 230. At the same time, the inner edge of the main sleeve 100 will scrape off the sugar substitute liquid adhering to the outer wall of the sampling bottle 200. As the sampling bottle 200 moves upward, the sampling bottle 200 is temporarily stored in the main sleeve 100, which also means that the first sampling is completed.

[0066] Then, the second sampling is performed. Similarly, a new sampling bottle 200 for the second sampling is taken out first, and the steps of the first sampling are taken. After the sampling bottle 200 for the second sampling is temporarily stored in the main pipe sleeve 100, the third sampling is performed, and so on, until the specified number of sampling times is reached.

[0067] The more sampling times are, the longer the main tube sleeve 100 will be to accommodate more sampling bottles 200 .

[0068] The sugar substitute liquid stored in the sampling bottle 200 flows out through the sampling port 220 opened at the bottom of the sampling bottle 200 for detection, and a sample collecting plate 221 is provided in the sampling bottle 200 for collecting the sugar substitute liquid above the sampling port 220, and the sampling port 220 can be sealed by a film, and the film can be opened or punctured during sampling and detection.

[0069] As a preferred embodiment of this invention, see Figure 4 As shown, in order to improve the sealing effect of the sealing plate 231 , an inner edge 232 is provided in the injection port 230 for fitting with the sealing plate 231 , thereby increasing the sealing effect of the sealing plate 231 .

[0070] Preferably, the main shaft 140 is completely accommodated in the main pipe sleeve 100 , so as to facilitate the subsequent storage of the main pipe sleeve 100 .

[0071] In another embodiment, an automatic screening type sugar substitute detection device in the previous embodiment is provided, and the sampling bottle 200 can be taken out from the top. For details, see Figure 1 As shown, the top tube sleeve 110 is a semi-enclosed cylindrical structure, which has a bottle taking port 112 on the side facing the guide plate 150. Figure 5 As shown, the angle formed by the line between the two ends of the top sleeve 110 and the center of the circle is less than 180°, specifically 125°, and the two ends of the main sleeve 100 are made of flexible materials, see Figure 2 As shown, the top plate 111 is an irregular circular plate, thereby forming a reserved gap 1111 with the top tube sleeve 110 , which facilitates the bending of the top tube sleeve 110 on the one hand, and increases the open area above the bottle removal port 112 on the other hand, so as to facilitate the removal of the sampling bottle 200 .

[0072] In addition, bottom guide grooves 130 are provided on both sides of the bottle taking port 112 on the outer wall of the main pipe sleeve 100, and the bottom guide grooves 130 extend upward, and then a top guide groove 113 connected to the bottom guide groove 130 is provided on the top pipe sleeve 110. When in use, the sampling bottle 200 in the main pipe sleeve 100 is partially exposed through the bottom guide grooves 130 and the top guide grooves 113, see Figure 2 As shown, where:

[0073] A notch B is provided near the top of the top guide groove 113 facing the bottle taking opening 112, and a notch A is formed. First, the exposed surface of the top sampling bottle 200 is pinched, and the sampling bottle 200 is moved to the bottle taking opening 112 along the bottom guide groove 130 and the top guide groove 113, and then the sampling bottle 200 is taken out of the bottle taking opening 112 by force through the notch B. For details, see Figure 5 As shown, both ends of the top tube sleeve 110 are bent toward both sides, so that the sampling bottle 200 can be taken out from the bottle taking port 112 .

[0074] In another embodiment, an automatic screening type sugar substitute detection device in the previous embodiment is provided, and the sampling bottle 200 can be quickly separated from the external thread portion 141 by means of the sealing plate 231 and the bottom guide groove 130, see Figure 8 As shown, two injection ports 230 are respectively arranged corresponding to the bottom guide grooves 130 on both sides. The outer walls of the sealing plates 231 corresponding to the two injection ports 230 are elastic and protrude outward in a triangular structure. When moving in the main pipe sleeve 100, the sealing plates 231 are squeezed by the inner wall of the main pipe sleeve 100 and accommodated in the injection ports 230. When the internal threaded portion 211 is about to be separated from the external threaded portion 141, the top of the sealing plate 231 exceeds a part of the bottom edge of the bottom guide groove 130. At this time, the sealing plate 231 recovers its initial shape. A reaction force F is generated at the bottom edge of the bottom guide groove 130. The component force f of the reaction force F in the vertical direction will drive the sampling bottle 200 to actively disengage from the external thread portion 141, thereby preventing the rotation of the external thread portion 141 from causing wear to the internal thread portion 211. At the same time, the sealing plate 231 can also be stuck in the bottom guide groove 130. In this way, even if the sampling bottle 200 slides in the main sleeve 100, it will not easily pass through the bottle removal port 112, because when sliding, the sealing plate 231 will pass through the slot B and enter the slot A, see Fig. 9 As shown, only when the sealing plate 231 is aligned with the notch B and then a force is applied, can the sampling bottle 200 be taken out through the bottle taking opening 112 .

[0075] In another embodiment, a method for detecting using an automatic screening type sugar substitute detection device in the above embodiment is provided, and the specific steps are as follows:

[0076] S1. Prepare the main pipe set 100, including:

[0077] Determine the number of detection time nodes, and prepare a corresponding number of main pipe sleeves 100 according to the number of time nodes (here, the main pipe sleeve 100 includes the auxiliary structures above it, such as: top pipe sleeve 110, motor housing 120, main shaft 140, etc.);

[0078] S2. Prepare a sampling bottle 200, wherein:

[0079] Prepare a corresponding number of sampling bottles 200 according to the total number of sampling times;

[0080] S3. Sampling a time node, including:

[0081] Connect the sampling bottle 200 to the main shaft 140, hold the main pipe sleeve 100, and take samples through the sampling bottle 200 and store them;

[0082] Then the sampling bottle 200 is driven upward by the main shaft 140 so that the sampling bottle 200 is temporarily stored in the main pipe sleeve 100. The first sampling is completed at this time point;

[0083] Among them, a main pipe sleeve 100 represents a time node, and the sampling bottle 200 in the main pipe sleeve 100 represents the sample obtained by sampling at the node;

[0084] Repeat the above sampling process until the number of samplings required for the time node is completed;

[0085] S4, repeat S3 until all time nodes are sampled;

[0086] S5. When testing the samples, the sampling bottle 200 in the main pipe sleeve 100 can be taken out to test the samples collected at the same time point.

[0087] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic screening type sugar substitute detection device, characterized in that: It comprises a main pipe sleeve (100), wherein a main shaft (140) capable of rotating is coaxially arranged in the main pipe sleeve (100); It also includes a sampling bottle (200), wherein the sampling bottle (200) is threadedly connected to the main shaft (140). After the connection: The main pipe sleeve (100) is used for holding by hand; The sampling bottle (200) is used for sampling; After sampling is completed, the main shaft (140) rotates to make the sampling bottle (200) slide upward along the inside of the main pipe sleeve (100), and the sampling bottle (200) is temporarily stored inside the main pipe sleeve (100) for subsequent testing; A plurality of injection ports (230) are provided on the outer wall of the sampling bottle (200), and a sealing plate (231) is provided outside the injection port (230). The sealing plate (231) is used to prevent particles suspended in the sugar substitute liquid from entering the sampling bottle (200), so as to improve the purity of the sample. The top end of the sealing plate (231) is connected to the injection port (230), and the bottom end is tilted outwards; A "U"-shaped groove (210) is provided on one side of the sampling bottle (200), and a semicircular groove at an inner end of the "U"-shaped groove (210) is coaxial with the center of the sampling bottle (200); An internal threaded portion (211) is provided on the inner wall of the semicircular groove, an external threaded portion (141) is provided at the bottom of the main shaft (140), and the external threaded portion (141) is threadedly connected to the internal threaded portion (211); Wherein, a guide plate (150) is arranged inside the main pipe sleeve (100), and the guide plate (150) is used to connect with the "U"-shaped groove (210) to guide the sampling bottle (200) sliding upward along the inside of the main pipe sleeve (100); A top pipe sleeve (110) is provided on the top of the main pipe sleeve (100). The top tube sleeve (110) is a half-wrapped cylindrical structure, and has a bottle taking opening (112) on a side facing the guide plate (150), wherein: The angle formed by the lines connecting the two ends of the top pipe sleeve (110) and the center of the circle is smaller than 180°; Both ends of the main pipe sleeve (100) are made of flexible material; Bottom guide grooves (130) are provided on both sides of the bottle taking opening (112) on the outer wall of the main pipe sleeve (100), and the bottom guide grooves (130) extend upwards; The top pipe sleeve (110) is provided with a top guide groove (113) communicating with the bottom guide groove (130), wherein a portion of the surface of the sampling bottle (200) in the main pipe sleeve (100) is exposed through the bottom guide groove (130) and the top guide groove (113); Two injection ports (230) are respectively arranged corresponding to the bottom guide grooves (130) on both sides, and the outer walls of the sealing plates (231) corresponding to the two injection ports (230) are elastic and outwardly protruding triangular structures, wherein: When the internal threaded portion (211) is about to detach from the external threaded portion (141), the top of the sealing plate (231) exceeds the bottom edge of the bottom guide groove (130), and the sampling bottle (200) is driven to actively detach from the external threaded portion (141) by means of the vertical component of the reaction force generated by the bottom edge of the bottom guide groove (130) when the sealing plate (231) returns to its original shape.

2. The automatic screening type sugar substitute detection equipment according to claim 1, characterized in that: A top plate (111) is arranged on the top of the top pipe sleeve (110), a motor housing (120) is arranged on the top plate (111), a micro motor is arranged inside the motor housing (120), and an output shaft of the micro motor is coaxially connected to the main shaft (140); A button (121) is provided on the top of the motor housing (120); the button (121) is electrically connected to the micro motor, and the rotation speed of the output shaft of the micro motor increases as the pressing force increases.

3. The automatic screening type sugar substitute detection equipment according to claim 1, characterized in that: The injection port (230) is provided with an inner edge (232) for fitting with the sealing plate (231).

4. The automatic screening type sugar substitute detection equipment according to claim 2, characterized in that: The top plate (111) is an irregular circular plate, and a reserved gap (1111) is formed between the top plate and the top pipe sleeve (110).

5. A method for testing using the automatic screening type sugar substitute testing device according to any one of claims 1 to 4, characterized in that: The steps include: S1. Prepare the main pipe sleeve (100), wherein: Determine the number of detection time nodes, and prepare a corresponding number of main pipe sleeves (100) according to the number of time nodes; S2. Prepare a sampling bottle (200), wherein: Prepare the corresponding number of sampling bottles (200) according to the total number of sampling times; S3. Sampling a time node, including: Connecting the sampling bottle (200) to the main shaft (140), holding the main pipe sleeve (100), sampling and storing through the sampling bottle (200); Then, the sampling bottle (200) is driven upward by the main shaft (140), so that the sampling bottle (200) is temporarily stored in the main pipe sleeve (100), and the first sampling is completed at this time point; Wherein, a main pipe sleeve (100) represents a time node, and a sampling bottle (200) in the main pipe sleeve (100) represents a sample obtained by sampling at the node; Repeat the above sampling process until the number of samplings required for the time node is completed; S4, repeat S3 until all time nodes are sampled; S5. When testing the sample, the sampling bottle (200) in the main pipe sleeve (100) is taken out to test the sample obtained by sampling at the same time point.

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