Liquid feed fermentation process detection system

Abstract

A liquid feed fermentation process detection system belongs to the technical field of feed production equipment. The system comprises a sampling rod and a driver for driving the sampling rod, the sampling rod is provided with a sampling cavity, a driving cavity, a sliding cavity and an accommodating cavity; a driving mechanism is mounted in the driving cavity; the sliding cavity is communicated with the sampling cavity, and a baffle is slidably accommodated in the sliding cavity; the accommodating cavity is communicated with the sliding cavity and accommodates a plurality of indicating plates; the driving mechanism drives the baffle to reciprocate between the sliding cavity and the sampling cavity; the baffle plate seals the inlet of the sampling cavity when located in the sampling cavity; a containing groove matched with the indicating plate is formed in the side, close to the containing cavity, of the baffle, and a feeding structure used for loading the indicating plate into the containing groove is arranged in the containing cavity, so that the indicating plate is brought into the sampling cavity through the containing groove; the lower end of the containing groove is open so that the indicating plate can be separated from the lower end opening of the containing groove. According to the system, liquid can be taken and marked at different positions, a plurality of parts are respectively analyzed after being sampled, and the efficiency can be effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of feed production equipment, and in particular to a liquid feed fermentation process detection system. Background Art

[0002] During the fermentation process of liquid feed, liquid samples are usually taken from the fermented liquid feed for analysis to obtain the fermentation status of the liquid feed. When taking liquid samples for analysis, it is necessary to take samples from different parts of the fermented liquid feed to obtain more comprehensive and accurate analysis results. However, the current sampling and detection devices can only take samples from each position for analysis, and cannot achieve separate analysis after sampling from multiple parts, which affects the efficiency of detection and analysis. Utility Model Content

[0003] The purpose of the present application is to provide a liquid feed fermentation process detection system, which can take liquid at different positions in the fermented liquid feed and can mark when the sampling position is changed, so that sampling from multiple parts can be performed separately and the efficiency of detection and analysis can be effectively improved.

[0004] The embodiment of the present application is implemented as follows:

[0005] The embodiment of the present application provides a liquid feed fermentation process detection system, including a sampling rod and a driver, wherein the outer wall of the sampling rod is configured to be slidably sealed and connected with the detection port of the fermentation chamber along the axial direction of the sampling rod, and the driver is used to drive the sampling rod to slide relative to the detection port; wherein a sampling cavity is axially provided at the front end of the sampling rod, and a driving cavity, a sliding cavity and a containing cavity are also provided in the sampling rod; a driving mechanism is installed in the driving cavity; the sliding cavity is connected to the sampling cavity, and a baffle is slidably contained in the sliding cavity; the containing cavity is connected to the sliding cavity, and a plurality of parallel The drive mechanism is connected to the baffle plate for driving the baffle plate to reciprocate between the sliding cavity and the sampling cavity; when the baffle plate is located in the sampling cavity, the entrance of the sampling cavity is closed; a receiving groove matching the indicator plate is provided on one side of the baffle plate close to the receiving cavity, and a feeding structure for loading the indicator plate into the receiving groove is provided in the receiving cavity, so that when the baffle plate enters the sampling cavity from the sliding cavity, the indicator plate is brought into the sampling cavity through the receiving groove; the lower end of the receiving groove is open, so that when the baffle plate returns from the sampling cavity to the sliding cavity, the indicator plate is detached from the lower end opening of the receiving groove to be retained in the sampling cavity.

[0006] In the liquid feed fermentation process detection system provided in the embodiment of the present application, the sampling rod slides relative to the detection port of the fermentation chamber under the driving action of the driver, so that the front end of the sampling rod reaches different parts of the fermented liquid feed for sampling.

[0007] In an embodiment of the present application, a baffle is configured to reciprocate between a sliding cavity and a sampling cavity. When sampling is performed at a current preset position, the baffle is slid into the sliding cavity. When sampling at the current preset position is completed and before sampling at the next preset position begins, the baffle is slid into the sampling cavity to close the entrance of the sampling cavity, thereby realizing sampling start control of the sampling cavity at different sampling positions.

[0008] In the embodiment of the present application, a receiving cavity is provided in the sampling rod for accommodating a plurality of indicator plates, a receiving groove matching the indicator plate is provided on the side of the baffle plate close to the receiving cavity, and a feeding structure for loading the indicator plate into the receiving groove is provided, so that the indicator plate can be pushed into the receiving groove when the baffle plate is located in the sliding cavity, and then the indicator plate in the receiving groove can be brought into the sampling cavity when the baffle plate enters the sampling cavity from the sliding cavity; at the same time, the lower end of the receiving groove is open, and when the baffle plate returns from the sampling cavity to the sliding cavity, the indicator plate falls down under the action of gravity and detaches from the lower end opening of the receiving groove, thereby remaining in the sampling cavity. Based on this design, the indicator plate retained in the sampling cavity can be used as an indicator of the starting position between different sampling positions, so that the sampled liquids at different sampling positions can be distinguished and analyzed separately in subsequent analysis.

[0009] In some embodiments, the feeding structure includes a first elastic member, which is located on a side of the indicator plate away from the sliding cavity. The first elastic member is in a compressed state to provide a thrust for the indicator plate to enter the receiving groove.

[0010] In some embodiments, the feeding structure further includes a push plate, which is located between the first elastic member and the indicator plate, the push plate is fixedly connected to the first elastic member, and the push plate is slidably matched with the cavity wall of the accommodating cavity.

[0011] In some embodiments, the push plate has a thickness greater than the thickness of a single indicator plate.

[0012] In some embodiments, a stop cavity is further provided in the sampling rod, and the opening of the stop cavity is located between the sliding cavity and the sampling cavity; a stop structure is provided in the stop cavity, and the stop structure includes a second elastic member and a stop block, the stop block is located at the opening of the stop cavity, and the second elastic member is connected to the side of the stop block away from the opening of the stop cavity; the second elastic member is in a compressed state, and is used to provide a thrust for the stop block to extend into the receiving groove; a first guide surface is provided at the end of the stop block for extending into the receiving groove, and the first guide surface is located on the side of the stop block close to the sliding cavity, and in the sliding direction of the baffle, the distance from the first guide surface to the sliding cavity gradually decreases from the end close to the receiving groove to the end away from the receiving groove, so that when the baffle drives the indicator plate from the sliding cavity into the sampling cavity, the bottom end of the indicator plate can slidably cooperate with the first guide surface.

[0013] In some embodiments, a second guide surface is provided at the end of the stop block extending into the receiving groove, and the second guide surface is located on the side of the stop block close to the sampling cavity. In the sliding direction of the baffle, the distance from the second guide surface to the sampling cavity gradually decreases from the end close to the receiving groove to the end away from the receiving groove.

[0014] In some embodiments, the sampling rod is provided with an observation window, which is located on a side of the sampling cavity away from the sliding cavity.

[0015] In some embodiments, the outlet of the sampling chamber is provided with a control valve for controlling the opening and closing of the outlet of the sampling chamber.

[0016] In some embodiments, the liquid feed fermentation progress detection system further comprises a support member, which is located at a side of the sampling rod away from the detection port, and is used to slidably cooperate with the sampling rod.

[0017] In some embodiments, a plurality of support members are provided, and the plurality of support members are spaced apart along the axial direction of the sampling rod; when the sampling rod approaches the detection port, the sampling rod separates from the support members one by one. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of a working state of a liquid feed fermentation process detection system provided in an embodiment of the present application;

[0020] Figure 2 Another working state schematic diagram of a liquid feed fermentation process detection system provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of the structure of the sampling rod provided in an embodiment of the present application in a working state;

[0022] Figure 4 for Figure 3 A partial enlarged view of the IV in the middle;

[0023] Figure 5 A schematic diagram of the structure of the sampling rod provided in an embodiment of the present application in another working state;

[0024] Figure 6 for Figure 5 A partial enlarged view of the middle VI;

[0025] Figure 7 A schematic diagram of the structure of the sampling rod provided in an embodiment of the present application in another working state;

[0026] Figure 8 for Figure 7 A partial enlarged view of position VIII in the middle;

[0027] Fig. 9 A schematic diagram of the structure of the sampling rod provided in an embodiment of the present application in another working state;

[0028] Fig.10 for Fig. 9 A partial enlarged view of the X in the middle.

[0029] icon:

[0030] 100-Liquid feed fermentation process detection system;

[0031] 110-sampling rod; 111-sampling chamber; 112-driving mechanism; 113-baffle; 1131-accommodating groove; 114-indicator plate; 115-feeding structure; 1151-first elastic member; 1152-push plate; 116-stop structure; 1161-second elastic member; 1162-stop block; 1162a-first guide surface; 1162b-second guide surface; 117-control valve;

[0032] 120-Driver;

[0033] 130- support member;

[0034] 200-Fermentation room; 210-Detection port. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In the description of the present application, it should be noted that the terms "center", "up", "down", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the application are usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0039] Furthermore, the terms “first”, “second”, “third”, etc. are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0040] Furthermore, the terms “vertical”, “parallel”, etc. do not mean that the components are required to be absolutely vertical or parallel, but may be slightly inclined.

[0041] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] The technical solution of the present application will be exemplarily described below through some embodiments.

[0043] See also Figure 1 and Figure 2 The embodiment of the present application provides a liquid feed fermentation process detection system 100, comprising a sampling rod 110 and a driver 120. The outer wall of the sampling rod 110 is configured to be slidably sealed and connected with a detection port 210 of a fermentation chamber 200 along the axial direction of the sampling rod 110, and the driver 120 is used to drive the sampling rod 110 to slide relative to the detection port 210.

[0044] In the embodiment of the present application, the sampling rod 110 slides relative to the detection port 210 of the fermentation chamber 200 under the driving action of the driver 120, so that the front end of the sampling rod 110 reaches different parts of the fermented liquid feed for sampling.

[0045] Continue to see Figure 1 and Figure 2 In some embodiments, the liquid feed fermentation process detection system 100 further includes a support member 130 , which is located on a side of the sampling rod 110 away from the detection port 210 , and is configured to slidably cooperate with the sampling rod 110 .

[0046] In the embodiment of the present application, the arrangement of the support member 130 is not limited, as long as it can provide support for the sampling rod 110 and can slidably cooperate with the sampling rod 110. In this design, the support member 130 can support the sampling rod 110 on the one hand, and can also guide the sliding of the sampling rod 110 on the other hand, so that the sampling rod 110 can slide more stably.

[0047] Furthermore, a plurality of support members 130 are provided, and the plurality of support members 130 are spaced apart along the axial direction of the sampling rod 110; when the sampling rod 110 approaches the detection port 210, the sampling rod 110 and the support members 130 are separated one by one. The number of the support members 130 is, for example, two, three or more, and the plurality of support members 130 can play a better supporting and sliding guiding role.

[0048] See also Figure 3~Figure 10 The front end of the sampling rod 110 is provided with a sampling cavity 111 along the axial direction. As an example, the sampling rod 110 includes a front end section and a rod body section, and the front end section and the rod body section are, for example, detachably sealed and connected; wherein the sampling rod 110 is slidably sealed with the detection port 210 of the fermentation chamber 200 through the rod body section, and the sampling cavity 111 penetrates the front end section along the axial direction of the sampling rod 110.

[0049] In some embodiments, the outlet of the sampling chamber 111 is provided with a control valve 117 for controlling the opening and closing of the outlet of the sampling chamber 111 to achieve better controllability. As an example, the control valve 117 is a one-way valve so that the outlet of the sampling chamber 111 can only flow out of the material but not into the material.

[0050] A driving cavity, a sliding cavity and a receiving cavity are also provided in the sampling rod 110. As an example, the driving cavity, the sliding cavity and the receiving cavity are all provided in the front end section; further, the driving cavity, the sliding cavity and the receiving cavity are all located above the sampling cavity 111, the driving cavity is located above the sliding cavity, and the receiving cavity is located on the side of the sliding cavity away from the rod body section.

[0051] In some embodiments, the sampling rod 110 is provided with an observation window, and the observation window is located on the side of the sampling cavity 111 away from the sliding cavity. In this design, an observation window corresponding to the sampling cavity 111 is configured, and the liquid sample taken from the sampling cavity 111 can be directly observed through the observation window for analysis and judgment, without taking the liquid sample out of the sampling cavity 111 for observation. It should be noted that in some cases, it is also possible to provide fluid power (such as blowing, passing liquid, etc.) to the sampling cavity 111 at the inlet or outlet of the sampling cavity 111, so that the sample taken from the sampling cavity 111 flows out of the sampling cavity 111 for analysis.

[0052] A driving mechanism 112 is installed in the driving chamber; the driving mechanism 112 is, for example, a motor that outputs linear motion power. The sliding chamber is connected to the sampling chamber 111, and a baffle 113 is slidably accommodated in the sliding chamber, so that the baffle 113 can slide from the sliding chamber into the sampling chamber 111, and can also slide from the sampling chamber 111 back to the sliding chamber. The accommodating chamber is connected to the sliding chamber, and a plurality of indicator plates 114 arranged side by side are arranged in the accommodating chamber; the side-by-side distribution direction of the plurality of indicator plates 114 is, for example, the axial direction of the sampling rod 110.

[0053] The driving mechanism 112 is transmission-connected to the baffle 113 , and is used to drive the baffle 113 to reciprocate between the sliding cavity and the sampling cavity 111 ; when the baffle 113 is located in the sampling cavity 111 , the entrance of the sampling cavity 111 is closed.

[0054] In an embodiment of the present application, the baffle 113 is configured to reciprocate between the sliding cavity and the sampling cavity 111. When sampling at the current preset position, the baffle 113 is slid into the sliding cavity. When sampling at the current preset position is completed and before sampling at the next preset position begins, the baffle 113 is slid into the sampling cavity 111 to close the entrance of the sampling cavity 111, thereby realizing sampling start control of the sampling cavity 111 at different sampling positions.

[0055] A receiving groove 1131 matching with the indicator plate 114 is provided on one side of the baffle plate 113 close to the receiving cavity; as an example, the depth of the receiving groove 1131 is substantially the same as the thickness of one indicator plate 114, that is, one receiving groove 1131 receives one indicator plate 114 at a time. A feeding structure 115 for loading the indicator plate 114 into the receiving groove 1131 is provided in the receiving cavity, so that when the baffle plate 113 enters the sampling cavity 111 from the sliding cavity, the indicator plate 114 is brought into the sampling cavity 111 through the receiving groove 1131. The lower end of the receiving groove 1131 is open, so that when the baffle plate 113 returns from the sampling cavity 111 to the sliding cavity, the indicator plate 114 is detached from the lower end opening of the receiving groove 1131 to remain in the sampling cavity 111.

[0056] In the embodiment of the present application, a receiving cavity is provided in the sampling rod 110 for accommodating a plurality of indicator plates 114, a receiving groove 1131 matching the indicator plate 114 is provided on a side of the baffle plate 113 close to the receiving cavity, and a feeding structure 115 for loading the indicator plate 114 into the receiving groove 1131 is provided, so that the indicator plate 114 can be pushed into the receiving groove 1131 when the baffle plate 113 is located in the sliding cavity, and then the indicator plate 114 in the receiving groove 1131 can be brought into the sampling cavity 111 when the baffle plate 113 enters the sampling cavity 111 from the sliding cavity; at the same time, the lower end of the receiving groove 1131 is open, and when the baffle plate 113 returns from the sampling cavity 111 to the sliding cavity, the indicator plate 114 falls downward under the action of gravity and detaches from the lower end opening of the receiving groove 1131, thereby remaining in the sampling cavity 111. Based on this design, the indicator plate 114 retained in the sampling cavity 111 can be used as an indicator of the starting position between different sampling positions, which facilitates distinguishing and separately analyzing the sampled liquids at different sampling positions during subsequent analysis.

[0057] It should be noted that in the embodiments of the present application, the arrangement of the feeding structure 115 is not limited. In some cases, the bottom cavity wall of the accommodating cavity can be arranged at an angle so that the height of the bottom cavity wall gradually decreases as the accommodating cavity approaches the opening, so that the indicator plate 114 slides into the accommodating groove 1131 along the inclined bottom cavity wall under the action of gravity; in other cases, a feeding structure 115 that can provide thrust can be configured to push the indicator plate 114 into the accommodating groove 1131.

[0058] Regarding the arrangement of the feeding structure 115, in some embodiments, the feeding structure 115 includes a first elastic member 1151, wherein the first elastic member 1151 is, for example, a telescopic spring. The first elastic member 1151 is located on the side of the indicator plate 114 away from the sliding cavity, and the first elastic member 1151 is in a compressed state, and is used to provide a thrust for the indicator plate 114 to enter the receiving groove 1131.

[0059] In the above technical solution, the elastic restoring force of the first elastic member 1151 is used as the thrust for pushing the indicator plate 114. On the one hand, the pushing force can more efficiently push the indicator plate 114 into the accommodating groove 1131. On the other hand, the thrust is provided in the form of elastic restoring force, which has a better buffering effect.

[0060] Optionally, the feeding structure 115 further includes a push plate 1152 , which is located between the first elastic member 1151 and the indicator plate 114 , the push plate 1152 is fixedly connected to the first elastic member 1151 , and the push plate 1152 is slidably matched with the cavity wall of the accommodating cavity.

[0061] In the above technical solution, since the push plate 1152 has a larger area, the push plate 1152 and the cavity wall of the accommodating cavity can slide and cooperate stably, and the force of the first elastic member 1151 is transmitted through the push plate 1152, so that the indicator plate 114 can be pushed more smoothly.

[0062] Furthermore, the thickness of the push plate 1152 is greater than the thickness of the single indicator plate 114 .

[0063] In the above technical solution, since the thickness of the push plate 1152 is relatively large, the push plate 1152 and the cavity wall of the accommodating cavity can slide together to move more stably, so that the push plate 1152 can push the indicating plate 114 more smoothly.

[0064] Continue to see Figure 3~Figure 10 In some embodiments, a stopper cavity is further provided in the sampling rod 110 , and an opening of the stopper cavity is located between the sliding cavity and the sampling cavity 111 .

[0065] A stopper structure 116 is provided in the stopper cavity, and the stopper structure 116 includes a second elastic member 1161 and a stopper block 1162. The stopper block 1162 is located at the opening of the stopper cavity, and the second elastic member 1161 is connected to a side of the stopper block 1162 away from the opening of the stopper cavity; the second elastic member 1161 is in a compressed state, and is used to provide a thrust for the stopper block 1162 to extend into the receiving groove 1131; wherein the second elastic member 1161 is, for example, a telescopic spring.

[0066] The end of the stopper 1162 for extending into the receiving groove 1131 is provided with a first guide surface 1162a, and the first guide surface 1162a is located on the side of the stopper 1162 close to the sliding cavity; in the sliding direction of the baffle 113, the distance from the first guide surface 1162a to the sliding cavity gradually decreases from the end close to the receiving groove 1131 to the end away from the receiving groove 1131. As an example, the first guide surface 1162a is an inclined surface. By providing the first guide surface 1162a on the side of the stopper 1162 close to the sliding cavity, when the baffle 113 drives the indicator plate 114 from the sliding cavity into the sampling cavity 111, the bottom end of the indicator plate 114 can be slidably matched with the first guide surface 1162a, so as to prevent the stopper 1162 from affecting the indicator plate 114 in the receiving groove 1131 from sliding into the sampling cavity 111.

[0067] Based on the design of the above-mentioned stop structure 116, the process of the baffle 113 sliding from the sampling cavity 111 back to the sliding cavity is as follows:

[0068] First, the baffle 113 brings the indicator plate 114 into the sampling chamber 111 in the initial stage. Figure 3 and Figure 4At this time, the receiving groove 1131 and the indicating plate 114 therein are located below the end of the stop block 1162, and the end of the stop plate 113 abuts against the side wall of the baffle 113 located above the receiving groove 1131; continue to refer to Figure 5 and Figure 6 , the baffle 113 starts to slide upward back into the sliding cavity, and the indicator plate 114 is released from the lower opening of the receiving groove 1131 under the action of gravity and other forces. At this time, a gap appears between the top of the indicator plate 114 and the groove wall of the receiving groove 1131; Figure 7 and Figure 8 , the baffle plate 113 further slides upward back into the sliding cavity, and at this time the receiving groove 1131 slides to correspond to the stop block 1162. Under the pushing action of the second elastic member 1161, the end of the stop block 1162 extends into the receiving groove 1131, and the end of the stop block 1162 is located in the gap between the top of the indicator plate 114 and the groove wall of the receiving groove 1131, which can effectively block the indicator plate 114 in the sampling cavity 111; continue to see Fig. 9 and Fig.10 , the baffle 113 further slides upward until the receiving groove 1131 corresponds to the indicator plate 114 in the receiving chamber. At this time, the indicator plate 114 in the sampling chamber 111 is completely separated from the baffle 113 and retained in the sampling chamber 111 as a sampling starting position mark. Under the pushing action of the first elastic member 1151, the next indicator plate 114 in the receiving chamber enters the receiving groove 1131.

[0069] Further, the end of the stopper 1162 for extending into the receiving groove 1131 is provided with a second guide surface 1162b, and the second guide surface 1162b is located on the side of the stopper 1162 close to the sampling cavity 111. In the sliding direction of the baffle 113, the distance from the second guide surface 1162b to the sampling cavity 111 gradually decreases from the end close to the receiving groove 1131 to the end away from the receiving groove 1131. As an example, the second guide surface 1162b is an inclined surface.

[0070] In the above technical solution, a second guide surface 1162b is provided on one side of the stop block 1162 close to the sampling cavity 111, so that Figure 7 and Figure 8 During the movement, the end of the stop block 1162 can better extend into the gap between the top of the indicator plate 114 and the groove wall of the accommodating groove 1131.

[0071] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A liquid feed fermentation process detection system, characterized in that: The liquid feed fermentation process detection system comprises a sampling rod and a driver, wherein the outer wall of the sampling rod is configured to be slidably sealed and connected to the detection port of the fermentation chamber along the axial direction of the sampling rod, and the driver is used to drive the sampling rod to slide relative to the detection port; The front end of the sampling rod is provided with a sampling cavity along the axial direction, and the sampling rod is also provided with a driving cavity, a sliding cavity and a receiving cavity; a driving mechanism is installed in the driving cavity; the sliding cavity is communicated with the sampling cavity, and a baffle is slidably received in the sliding cavity; the receiving cavity is communicated with the sliding cavity, and a plurality of indicator plates distributed side by side are received in the receiving cavity; The driving mechanism is in driving connection with the baffle plate, and is used to drive the baffle plate to reciprocate between the sliding cavity and the sampling cavity; when the baffle plate is located in the sampling cavity, the entrance of the sampling cavity is closed; A receiving groove matching the indicator plate is provided on one side of the baffle plate close to the receiving cavity, and a feeding structure for loading the indicator plate into the receiving groove is provided in the receiving cavity, so that when the baffle plate enters the sampling cavity from the sliding cavity, the indicator plate is brought into the sampling cavity through the receiving groove; the lower end of the receiving groove is open, so that when the baffle plate returns from the sampling cavity to the sliding cavity, the indicator plate is detached from the lower end opening of the receiving groove to remain in the sampling cavity.

2. The liquid feed fermentation process detection system according to claim 1, characterized in that: The feeding structure comprises a first elastic member, which is located at a side of the indicator plate away from the sliding cavity. The first elastic member is in a compressed state and is used to provide a thrust for the indicator plate to enter the receiving groove.

3. The liquid feed fermentation process detection system according to claim 2, characterized in that: The feeding structure further includes a push plate, which is located between the first elastic member and the indicating plate, the push plate is fixedly connected to the first elastic member, and the push plate is slidably matched with the cavity wall of the accommodating cavity.

4. The liquid feed fermentation process detection system according to claim 3, characterized in that: The thickness of the push plate is greater than the thickness of the single indicating plate.

5. The liquid feed fermentation process detection system according to claim 1, characterized in that: A stopper cavity is also provided in the sampling rod, and an opening of the stopper cavity is located between the sliding cavity and the sampling cavity; A stop structure is provided in the stop cavity, and the stop structure includes a second elastic member and a stop block, the stop block is located at the opening of the stop cavity, and the second elastic member is connected to a side of the stop block away from the opening of the stop cavity; the second elastic member is in a compressed state, and is used to provide a thrust for the stop block to extend into the receiving groove; The end of the stop block extending into the accommodating groove is provided with a first guide surface, and the first guide surface is located on the side of the stop block close to the sliding cavity. In the sliding direction of the baffle, the distance from the first guide surface to the sliding cavity gradually decreases from the end close to the accommodating groove to the end away from the accommodating groove, so that when the baffle drives the indicator plate from the sliding cavity into the sampling cavity, the bottom end of the indicator plate can be slidably matched with the first guide surface.

6. The liquid feed fermentation process detection system according to claim 5, characterized in that: The end of the stop block extending into the receiving groove is provided with a second guide surface, and the second guide surface is located on a side of the stop block close to the sampling cavity. In the sliding direction of the baffle, the distance from the second guide surface to the sampling cavity gradually decreases from an end close to the receiving groove to an end away from the receiving groove.

7. The liquid feed fermentation process detection system according to any one of claims 1 to 6, characterized in that: The sampling rod is provided with an observation window, and the observation window is located at a side of the sampling cavity away from the sliding cavity.

8. The liquid feed fermentation process detection system according to any one of claims 1 to 6, characterized in that: The outlet of the sampling cavity is provided with a control valve for controlling the opening and closing of the outlet of the sampling cavity.

9. The liquid feed fermentation process detection system according to any one of claims 1 to 6, characterized in that: The liquid feed fermentation process detection system further comprises a support member, which is located at a side of the sampling rod away from the detection port, and is used to slidably cooperate with the sampling rod.

10. The liquid feed fermentation process detection system according to claim 9, characterized in that: There are a plurality of support members, and the plurality of support members are spaced apart along the axial direction of the sampling rod; when the sampling rod approaches the detection port, the sampling rod separates from the support members one by one.

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