Multi-tube sampling structure for liquid sampling

Abstract

The application discloses a multi-pipe sampling structure for liquid sampling and relates to the field of sampling structures. The multi-pipe sampling structure comprises a device bottom plate, the top of the device bottom plate is provided with a pipe control mechanism for communication, a trigger member is used to push a passive member to move horizontally, so that a pipe needing sampling is communicated with a circulating pump, and then the sample in a container needing sampling is pumped by the circulating pump; when different samples need to be replaced or multiple samples need to be simultaneously sampled, the passive members of different pipes are communicated by adjusting the pipe control mechanism, so that the pipes can be quickly replaced, frequent test tube dismounting and mounting steps after sample sampling are not needed, the probability of sample contamination is reduced, the complexity of the sampling link is reduced, and operation is facilitated.

Description

Technical Field

[0001] This application relates to the field of sample introduction structures, and in particular to a multi-tube sample introduction structure for liquid sampling. Background Technology

[0002] In many experimental settings, liquids are extracted using sampling or injection structures and then collected together for reaction experiments. Such structures are often composed of a delivery device and pipes with several liquid storage containers, forming the current multi-tube injection structure for liquid sampling.

[0003] While existing sampling methods can achieve rapid sample collection and injection, liquid experiments often require the simultaneous injection of multiple liquids. In such cases, injecting samples one by one using traditional devices is not ideal for reaction experiments. In reaction experiments, the reaction conditions resulting from mixing multiple reagents vary depending on the order in which they are mixed, necessitating frequent experiments and constant disassembly and reassembly of test tubes. Consequently, the existing injection structure is inefficient in experiments requiring the simultaneous injection of multiple samples. Utility Model Content

[0004] To address the issue of the inability to simultaneously inject multiple samples into one tube, this application provides a multi-tube injection structure for liquid sampling.

[0005] The multi-tube injection structure for liquid sampling provided in this application adopts the following technical solution:

[0006] A multi-tube sampling structure for liquid sampling includes a device base plate, and a pipeline control mechanism for communication is provided on the top of the device base plate.

[0007] The pipeline control mechanism is equipped with a passive component, and a triggering component is provided inside the pipeline control mechanism to trigger the horizontal movement of the passive component.

[0008] By adopting the above technical solution, the staff can drive the passive component to move horizontally through the pipeline control mechanism. At this time, the passive component is pushed in the opposite direction by the trigger component, thereby connecting the pipelines that need to be injected. When different samples need to be changed, the passive components of different pipelines can be connected by adjusting the pipeline control mechanism to quickly change the pipelines, thereby realizing simultaneous injection of multiple tubes.

[0009] Preferably, the pipeline control mechanism includes a connecting plate 1 disposed on the top of the device base plate, a reaction tube fixedly connected to one side of the connecting plate 1, a sealing plate fixedly connected to the end of the reaction tube away from the connecting plate 1, a plurality of connecting cylinders fixedly connected to the outer wall of the reaction tube, and an adjustment component disposed on the outer wall of the connecting cylinder.

[0010] By adopting the above technical solution, the connecting cylinder is stably fixed to the outer wall of the reaction tube by the sealing plate, and the connecting cylinder is aligned with the hole of the reaction tube. The pipeline connection is further made by adjusting the component.

[0011] Preferably, the inner diameter of the connecting cylinder is the same as the outer diameter of the reaction tube, and the outer diameter of the connecting disc is the same as the outer diameter of the sealing disc.

[0012] By adopting the above technical solution, the reaction tube is connected to the circulation pump through the connecting plate, which facilitates the continued pumping of the sample to the testing equipment.

[0013] Preferably, the adjusting assembly includes a fixed column fixedly connected to the outer wall of the connecting cylinder, a rotating bolt threadedly connected to the end of the fixed column away from the connecting cylinder, a connecting piece movably passing through the outer wall of the rotating bolt, a fixed ring fixedly connected to the bottom of the connecting piece, a connecting pipe fixedly connected to the inner wall of the fixed ring, and a reset assembly provided at the end of the connecting pipe.

[0014] By adopting the above technical solution, the connecting piece is driven to move horizontally by rotating the rotating bolt. The connecting piece drives the connecting pipe to move horizontally through the fixing ring, thereby adjusting the horizontal movement of the connecting pipe.

[0015] Preferably, the inner diameter of the fixing ring is adapted to the outer diameter of the connecting pipe, and the connecting pipe movably penetrates the side wall of the connecting cylinder.

[0016] By adopting the above technical solution, the connecting pipe is fixed by a fixing ring and the connecting pipe is limited by a connecting cylinder, so that the connecting pipe can only move horizontally.

[0017] Preferably, the reset assembly includes a second connecting plate fixedly connected to the outer wall of the connecting tube, a connecting ring provided on the side wall of the second connecting plate, a pushing ring fixedly connected to the outer wall of the connecting ring, a second fixing ring fixedly connected to the inner wall of the connecting tube, a sealing ring fixedly connected to the inner wall of the second fixing ring, a spring sleeved on the outer wall of the sealing ring, and a communication assembly provided inside the second connecting plate.

[0018] By adopting the above technical solution, the spring will push the push ring when it moves horizontally, and the connecting ring will be limited by the push ring so that it can only move horizontally.

[0019] Preferably, the outer wall of the second connecting disc is slidably connected to the connecting cylinder, the second connecting disc is slidably connected to the reaction tube, the inner wall of the pushing ring is in contact with the outer wall of the sealing ring, and the outer wall of the pushing ring is in contact with the inner wall of the connecting tube.

[0020] By adopting the above technical solution, the pushing ring is limited by the sealing ring, thereby preventing the horizontal movement of the pushing ring from deviating, and the horizontal movement of the pushing ring is limited by the connecting pipe.

[0021] Preferably, the communication component includes a communication tube slidably connected to the inner wall of the second connection plate, the outer wall of the communication tube being fixedly connected to the connecting ring, a drain plate being fixedly connected to the end of the communication tube, the outer wall of the drain plate being slidably connected to the inner wall of the connection tube, a communication piece being fixedly connected to the inner wall of the reaction tube, the side of the communication piece near the communication tube being fixedly connected to the trigger, and the inner wall of the communication tube being fixedly connected to the passive element.

[0022] By adopting the above technical solution, the drainage plate is limited by the connecting pipe, so that the drainage plate can only move in the horizontal direction. The connecting pipe also allows the drainage plate to move synchronously when the trigger pushes the passive component.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The trigger mechanism drives the passive component to move horizontally, thereby connecting the sample injection pipeline to the circulation pump. The circulation pump then pumps the sample from the container to be injected. When different samples need to be changed or multiple samples need to be injected simultaneously, the passive components of different pipelines can be connected by adjusting the pipeline control mechanism, allowing for rapid pipeline replacement. This eliminates the need for frequent test tube disassembly and reassembly after sample injection, reducing the probability of sample contamination, simplifying the injection process, and facilitating operation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram illustrating the overall structure of this application;

[0026] Figure 2 This is a schematic diagram of the internal structure of the reaction tube in this application;

[0027] Figure 3 This is a partial schematic diagram of the connecting pipe in this application;

[0028] Figure 4 This is a schematic diagram of the passive component in this application;

[0029] Figure 5 This is a partial cross-sectional view of the trigger element in this application;

[0030] Figure 6 For the purposes of this application Figure 5 Enlarged view of a portion of point A in the middle;

[0031] Figure 7 This is a schematic diagram illustrating the connecting pipe component of this application.

[0032] Figure label:

[0033] 1. Device base plate;

[0034] 2. Pipeline control mechanism; 21. Connecting plate one; 22. Reaction tube; 23. Sealing plate; 24. Connecting cylinder; 25. Fixing column; 26. Rotating bolt; 27. Connecting piece; 28. Fixing ring one;

[0035] 29. Connecting pipe; 210. Connecting disc II; 211. Connecting ring; 212. Pushing ring; 213. Fixing ring II; 214. Sealing ring; 215. Spring; 216. Connecting pipe; 217. Drainage plate; 218. Connecting plate;

[0036] 3. Passive component; 4. Triggering component; 5. Circulation pump. Detailed Implementation

[0037] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0038] This application discloses a multi-tube injection structure for liquid sampling.

[0039] Reference Figure 1 A multi-tube sampling structure for liquid sampling includes a device base plate 1, a pipeline control mechanism 2 on the top of the device base plate 1, the pipeline control mechanism 2 being used to connect the delivery pipelines, a passive component 3 inside the pipeline control mechanism 2 being used to passively trigger movement to connect the pipelines, a trigger component 4 inside the pipeline control mechanism 2 being used to trigger the pipeline control mechanism 2 to drive the passive component 3 to move, and a circulation pump 5 being fixedly connected to the top of the device base plate 1.

[0040] The user first connects the containers of different reagents to different ports. Then, the user drives the pipeline control mechanism 2 that needs to be injected, which causes the passive component 3 to move closer to the trigger component 4. The trigger component 4 will drive the passive component 3 to move in the opposite direction, thereby connecting the injection pipeline to the circulation pump 5. The circulation pump 5 then pumps the liquid in the sample container. When multiple reagents need to be mixed and injected, multiple pipeline control mechanisms 2 can be driven simultaneously to complete the task, thus enabling simultaneous sampling of multiple samples without frequent disassembly or individual injection.

[0041] Reference Figure 2 , Figure 3The pipeline control mechanism 2 includes a connecting plate 21 set on the top of the device base plate 1. The connecting plate 21 is fixedly connected to the water inlet of the circulating pump 5. A reaction pipe 22 is fixedly connected to one side of the connecting plate 21, and the other side of the connecting plate 21 is fixedly connected to the circulating pump 5. A sealing plate 23 is fixedly connected to the end of the reaction pipe 22 away from the connecting plate 21. The outer diameter of the sealing plate 23 is consistent with the outer diameter of the connecting plate 21. Multiple connecting cylinders 24 are fixedly connected to the outer wall of the reaction pipe 22. A circular hole 1 is opened on the side wall of the reaction pipe 22, and a circular hole 2 is opened on the side wall of the connecting cylinder 24. The diameters of the circular hole 1 and the circular hole 2 are consistent and overlap. The inner diameter of the connecting cylinder 24 is consistent with the outer diameter of the reaction pipe 22. Adjustment components are symmetrically arranged on the outer wall of the connecting cylinder 24.

[0042] The user first cleans the inside of the reaction tube 22, then fixes the connecting plate 21 to the water inlet of the circulating pump 5, then fixes the reaction tube 22 to the connecting plate 21, then fits the connecting cylinder 24 onto the reaction tube 22 and fixes it, and finally fixes the sealing plate 23 to the reaction tube 22.

[0043] Reference Figure 3 , Figure 4 The adjusting assembly includes a fixed post 25 fixedly connected to the outer wall of the connecting cylinder 24. A rotating bolt 26 is threadedly connected to one end of the fixed post 25 away from the connecting cylinder 24. A knob with friction grooves is provided at the end of the rotating bolt 26 to facilitate rotation. An internal threaded hole is provided through the middle of the fixed post 25. The thread on the outer wall of the rotating bolt 26 corresponds to the internal threaded hole, so that the rotating bolt 26 is threadedly connected to the fixed post 25. A connecting piece 27 is movably passed through the outer wall of the rotating bolt 26. A circular hole three is provided on the side wall of the connecting piece 27. The rotating bolt 26 movably passes through the circular hole three. A fixing ring 28 is fixedly connected to the bottom of the connecting piece 27. A connecting tube 29 is fixedly connected to the inner wall of the fixing ring 28. The side wall of the fixing ring 28 is fixed to the connecting tube 29 by a through bolt. The inner diameter of the fixing ring 28 is adapted to the outer diameter of the connecting tube 29. The connecting tube 29 movably passes through the circular hole two provided on the side wall of the connecting cylinder 24, so that the connecting tube 29 and the connecting cylinder 24 are slidably connected. A reset assembly is provided at the end of the connecting tube 29.

[0044] Then, the user rotates the rotating bolt 26. Rotating the bolt 26 will cause the connecting piece 27 to move horizontally, which in turn will cause the fixing ring 28 to move horizontally, and the fixing ring 28 will cause the connecting pipe 29 to move horizontally.

[0045] Reference Figures 4-6The reset assembly includes a second connecting plate 210 fixedly connected to the outer wall of the connecting tube 29. The outer wall of the second connecting plate 210 is slidably connected to the connecting cylinder 24, and the second connecting plate 210 is slidably connected to the reaction tube 22. A connecting ring 211 is provided on the side wall of the second connecting plate 210, and the connecting ring 211 fits against the side wall of the second connecting plate 210. A pushing ring 212 is fixedly connected to the outer wall of the connecting ring 211, and the pushing ring 212 fits against the side wall of the second connecting plate 210. The outer wall of the pushing ring 212 is connected to the inner wall of the connecting tube 29. The inner wall of the connecting tube 29 is fixedly connected to a fixing ring 213, and the inner wall of the fixing ring 213 is fixedly connected to a sealing ring 214. The inner diameter of the connecting tube 24 is consistent with the inner diameter of the connecting ring 211. The inner wall of the pushing ring 212 is fitted with the outer wall of the sealing ring 214. A spring 215 is sleeved on the outer wall of the sealing ring 214. One end of the spring 215 is fixedly connected to the pushing ring 212, and the other end of the spring 215 is fixedly connected to the fixing ring 213. A connecting component is provided inside the connecting disc 210.

[0046] When the connecting pipe 29 moves horizontally, it will drive the connecting plate 210 to move horizontally synchronously. The connecting pipe 29 will also drive the internal components to move horizontally. The connecting pipe 29 will drive the passive member 3 to approach the trigger member 4. When the passive member 3 and the trigger member 4 are in contact, the trigger member 4 is in a fixed state, and the passive member 3 is in a horizontal moving state towards the trigger member 4. When the connecting pipe 29 continues to move horizontally towards the trigger member 4, the trigger member 4 will abut against the passive member 3, so that the passive member 3 will remain stationary. The connecting pipe 29 will drive the connecting plate 210, the fixing ring 213, and the sealing ring 214 to continue to move horizontally. The passive member 3 will drive the connecting ring 211 and the pushing ring 212 to remain stationary, so that the connecting plate 210 will compress the spring 215, thereby driving the connecting component to remain stationary.

[0047] Reference Figures 4-7The connecting component includes a connecting pipe 216 slidably connected to the inner wall of the connecting plate 210. The side wall of the connecting pipe 216 has multiple through holes for liquid flow. The outer wall of the connecting pipe 216 is fixedly connected to the connecting ring 211. A guide plate 217 is fixedly connected to the end of the connecting pipe 216. The side wall of the guide plate 217 has through holes for liquid flow. The end of the guide plate 217 away from the connecting pipe 216 is provided with a conical protrusion, which facilitates the guidance of the liquid flow direction. The outer wall of the guide plate 217 is slidably connected to the inner wall of the connecting pipe 29. A connecting plate 218 is fixedly connected to the inner wall of the reaction tube 22. The connecting plate 218 is fixedly connected to the inner wall of the circular hole. The side of the connecting plate 218 near the connecting pipe 216 is fixedly connected to the trigger 4. The inner wall of the connecting pipe 216 is fixedly connected to the passive member 3. The side of the passive member 3 away from the trigger 4 is provided with a frustum-shaped protrusion, which reduces the growth of bacteria caused by dark corners. The connecting plate 210 is made of rubber to prevent liquid leakage during pumping. The inner wall of the sealing ring 214 and the inner wall of the connecting plate 210 are both fitted with sealing rings to prevent liquid from seeping into the structure during sliding. The fixing ring 213, the sealing ring 214, and the connecting pipe 29 are integrally molded to prevent gaps from forming, which could cause cleaning dead corners and hygiene contamination.

[0048] All components used in the pipeline control mechanism 2 must undergo strict disinfection and sterilization procedures before use, and components made of materials such as metal and rubber must meet medical-grade standards.

[0049] When the passive component 3 remains stationary, it will cause the connecting tube 216 to stop synchronously. The connecting tube 216 will cause the guide plate 217 to stop moving synchronously. At this time, the sealing ring 214 continues to move horizontally with the connecting tube 29, and the guide plate 217 will no longer adhere to the side wall of the fixing ring 213, thus creating space on both sides of the through hole 2. At the same time, the sealing ring 214 will slide against the outer wall of the connecting tube 216, so that the through hole 1 on the side wall of the connecting tube 216 will not be blocked by the sealing ring 214, thus communicating with the through hole 2. At this time, the reagent liquid in the connecting tube 29 passes through the through hole 2 on the side wall of the guide plate 217, and then through the through hole 1 on the side wall of the connecting tube 216 to flow into the interior of the connecting tube 216. Then, it passes through the passive component 3, the trigger component 4, and the connecting plate 218 to enter the interior of the reaction tube 22. When a reaction occurs inside the reaction tube 22, the connecting plate 218 can also block the reaction liquid to prevent corrosion of the connecting tube 29 and avoid affecting subsequent sample injection.

[0050] After the sample is injected, the user reverses the rotation of bolt 26, which causes spring 215 to push push ring 212 to move horizontally, thereby causing the drainage plate 217 to fit against the side wall of fixing ring 213, thus maintaining a seal.

[0051] The implementation principle of a multi-tube injection structure for liquid sampling in this application embodiment is as follows:

[0052] The user first connects the containers of different reagents to different ports. Then, the user drives the pipeline control mechanism 2, which is responsible for the sample injection step. This causes the passive component 3 to move closer to the trigger component 4. The trigger component 4 then drives the passive component 3 to move in the opposite direction, thereby connecting the sample injection pipeline to the circulation pump 5. The circulation pump 5 then pumps the liquid in the sample container. When multiple reagents need to be mixed for injection, the pipeline control mechanism 2 controls the flow of multiple pipelines to complete the process. This allows for simultaneous sampling of multiple samples without frequent disassembly or individual sample injection.

[0053] Before use, the user should first clean the inside of the reaction tube 22, then fix the connecting plate 21 to the inlet of the circulating pump 5, then fix the reaction tube 22 to the connecting plate 21, then fit and fix the connecting sleeve 24 to the reaction tube 22, and then fix the sealing plate 23 to the reaction tube 22. Next, the user should rotate the rotating bolt 26. Rotating the bolt 26 will cause the connecting plate 210 to move horizontally synchronously, and the connecting tube 29 will cause the passive component 3 to move closer to the trigger component 4. When the passive component 3 and the trigger component 4 are in contact, at this time... The trigger 4 is in a fixed state, and the passive member 3 is in a horizontal moving state close to the trigger 4. When the connecting pipe 29 continues to move horizontally close to the trigger 4, the trigger 4 will abut against the passive member 3, so that the passive member 3 will remain stationary. The connecting pipe 29 will drive the connecting disc 210, the fixing ring 213, and the sealing ring 214 to continue to move horizontally. The passive member 3 will drive the connecting ring 211 and the pushing ring 212 to remain stationary, so that the connecting disc 210 will compress the spring 215, thereby driving the connecting component to remain stationary.

[0054] When the passive component 3 remains stationary, it will cause the connecting tube 216 to stop synchronously. The connecting tube 216 will cause the guide plate 217 to stop moving synchronously. At this time, the sealing ring 214 continues to move horizontally with the connecting tube 29, and the guide plate 217 will no longer adhere to the side wall of the fixing ring 213, thus creating space on both sides of the through hole 2. At the same time, the sealing ring 214 will slide against the outer wall of the connecting tube 216, so that the through hole 1 on the side wall of the connecting tube 216 will not be blocked by the sealing ring 214, thus communicating with the through hole 2. At this time, the reagent liquid in the connecting tube 29 passes through the through hole 2 on the side wall of the guide plate 217, and then through the through hole 1 on the side wall of the connecting tube 216 to flow into the interior of the connecting tube 216. Then, it passes through the passive component 3, the trigger component 4, and the connecting plate 218 to enter the interior of the reaction tube 22. When a reaction occurs inside the reaction tube 22, the connecting plate 218 can also block the reaction liquid to prevent corrosion of the connecting tube 29 and avoid affecting subsequent sample injection.

[0055] Therefore, by rotating the corresponding pipe's rotating bolt 26, the quantity and type of samples pumped by the circulating pump 5 can be adjusted, thus satisfying the simultaneous injection of multiple samples.

[0056] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A multi-tube sampling structure for liquid sampling, characterized in that: Includes a device base plate (1), and the top of the device base plate (1) is provided with a pipeline control mechanism (2) for communication; The pipeline control mechanism (2) is equipped with a passive component (3) and a trigger component (4) for triggering the passive component (3) to move horizontally.

2. The multi-tube sampling structure for liquid sampling according to claim 1, characterized in that: The pipeline control mechanism (2) includes a connecting plate (21) set on the top of the device base plate (1). A reaction tube (22) is fixedly connected to one side of the connecting plate (21). A sealing plate (23) is fixedly connected to the end of the reaction tube (22) away from the connecting plate (21). Multiple connecting cylinders (24) are fixedly connected to the outer wall of the reaction tube (22). An adjustment component is provided on the outer wall of the connecting cylinder (24).

3. The multi-tube sampling structure for liquid sampling according to claim 2, characterized in that: The inner diameter of the connecting cylinder (24) is the same as the outer diameter of the reaction tube (22), and the outer diameter of the connecting disc (21) is the same as the outer diameter of the sealing disc (23).

4. The multi-tube sampling structure for liquid sampling according to claim 2, characterized in that: The adjustment assembly includes a fixed column (25) fixedly connected to the outer wall of the connecting cylinder (24). A rotating bolt (26) is threadedly connected to one end of the fixed column (25) away from the connecting cylinder (24). A connecting piece (27) is movably passed through the outer wall of the rotating bolt (26). A fixing ring (28) is fixedly connected to the bottom of the connecting piece (27). A connecting pipe (29) is fixedly connected to the inner wall of the fixing ring (28). A reset assembly is provided at the end of the connecting pipe (29).

5. The multi-tube sampling structure for liquid sampling according to claim 4, characterized in that: The inner diameter of the fixing ring (28) is adapted to the outer diameter of the connecting pipe (29), and the connecting pipe (29) movably passes through the side wall of the connecting cylinder (24).

6. The multi-tube sampling structure for liquid sampling according to claim 4, characterized in that: The reset assembly includes a second connecting plate (210) fixedly connected to the outer wall of the connecting tube (29). A connecting ring (211) is provided on the side wall of the second connecting plate (210). A pushing ring (212) is fixedly connected to the outer wall of the connecting ring (211). A second fixing ring (213) is fixedly connected to the inner wall of the connecting tube (29). A sealing ring (214) is fixedly connected to the inner wall of the second fixing ring (213). A spring (215) is sleeved on the outer wall of the sealing ring (214). A communication assembly is provided inside the second connecting plate (210).

7. The multi-tube sampling structure for liquid sampling according to claim 6, characterized in that: The outer wall of the second connecting disc (210) is slidably connected to the connecting cylinder (24), the second connecting disc (210) is slidably connected to the reaction tube (22), the inner wall of the pushing ring (212) is in contact with the outer wall of the sealing ring (214), and the outer wall of the pushing ring (212) is in contact with the inner wall of the connecting tube (29).

8. The multi-tube sampling structure for liquid sampling according to claim 6, characterized in that: The communication component includes a communication tube (216) slidably connected to the inner wall of the second connection plate (210). The outer wall of the communication tube (216) is fixedly connected to the connecting ring (211). A guide plate (217) is fixedly connected to the end of the communication tube (216). The outer wall of the guide plate (217) is slidably connected to the inner wall of the connection tube (29). A communication piece (218) is fixedly connected to the inner wall of the reaction tube (22). The side of the communication piece (218) near the communication tube (216) is fixedly connected to the trigger (4). The inner wall of the communication tube (216) is fixedly connected to the passive member (3).

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