Kit for rapidly detecting ractopamine

Abstract

The invention relates to the technical field of kits, in particular to a kit for rapidly detecting ractopamine. Comprising a placement box body, a reagent tube, a detection tube arranged on the upper surface of the placement box body and communicated with the interior of the placement box body, a water bath kettle arranged below the detection tube and located in the placement box body, and a supporting device arranged on one side of the water bath kettle and used for supporting, a test device for detecting whether the weight of a sample in the reagent tube reaches the standard or not is arranged in the detection tube, the detection tube is used for containing the reagent tube, and a through opening penetrating through the containing box body is formed in one side of the containing box body. Then a sample is added into the reagent tube, after the added sample reaches 4 g or above, the testing device is started, the reagent tube falls into the water bath kettle and is supported by the supporting device, after cooking is completed, the supporting device is started, the reagent tube is taken out, the detection step is omitted, and detection of detection personnel is more convenient.

Description

Technical Field

[0001] This application relates to the technical field of test kits, and in particular to a test kit for rapid detection of ractopamine. Background Art

[0002] The ractopamine test kit is a kit that can qualitatively and quantitatively detect the residual amount of ractopamine in samples such as urine and tissues. Its main application scenario is to detect the clenbuterol content in lean meat (common types of clenbuterol include clenbuterol hydrochloride, salbutamol, ractopamine, etc.). The detection method is as follows: Place the reagent tube on an electronic scale, then add more than 4 grams of the sample to be detected into the reagent tube. Judge whether less is added according to the electronic scale (if it is less than 4 grams, it needs to be supplemented). Then insert the reagent tube onto the floating buoy with holes, place the reagent tube in a water bath and steam it for 10 minutes. After waiting for the reagent tube to cool, take out 2 - 3 drops of the liquid steamed out in the reagent tube and drop them onto the plate with a ractopamine test strip. If a purplish-red band appears in the observation area on the plate, it indicates that the ractopamine concentration in the liquid is above the threshold (2 ng / ml), i.e., exceeding the standard. If two purplish-red bands appear, it indicates that the ractopamine concentration in the liquid is below the threshold (2 ng / ml), i.e., not exceeding the standard.

[0003] In the prior art, the detection steps are not only cumbersome, but also require the use of multiple devices for detection. Therefore, before the detection, the tester needs to move the sample to multiple devices for detection, which is very time-consuming. For this reason, this application proposes a test kit for rapid detection of ractopamine to omit the cumbersome detection steps and make it more convenient for the tester to detect. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of this application is to provide a test kit for rapid detection of ractopamine to omit the cumbersome detection steps and make it more convenient for the tester to detect.

[0005] The above object of this application is achieved through the following technical solutions: A test kit for rapid detection of ractopamine, including a placement box body, a reagent tube, a detection tube arranged on the upper surface of the placement box body and communicating with the inside of the placement box body, a water bath arranged below the detection tube inside the placement box body, and a support device arranged on one side of the water bath for support. A test device for detecting whether the weight of the sample inside the reagent tube meets the standard is arranged inside the detection tube. The detection tube is used for placing the reagent tube, and a through hole penetrating the placement box body is opened on one side of the placement box body.

[0006] Further, the supporting device includes a supporting electric cylinder disposed on the side of the placing box body away from the water bath pot, a connecting electric cylinder disposed on the output end of the supporting electric cylinder, and a placing ring disposed on the output end of the connecting electric cylinder. An abutting ring for abutting against the placing ring is provided at the upper edge of the reagent tube. The output end of the supporting electric cylinder faces upward, the output end of the connecting electric cylinder faces the water bath pot and extends onto the water bath pot, and the abutting ring is located below the test tube.

[0007] Further, the testing device includes a detecting electric cylinder disposed on the upper surface of the placing box body and on one side of the test tube, a detecting plate disposed on the output end of the detecting electric cylinder and inserted into the test tube from one side below the test tube, and a pressure sensor disposed on the detecting plate. A control main board for controlling the pressure sensor is installed on the upper surface of the placing box body. The control main board is signal-connected to the pressure sensor and the detecting electric cylinder. The detecting plate is located inside the test tube and blocks the connection channel between the test tube and the placing box body. The control main board is used to receive the pressure signal of the pressure sensor and start the telescopic movement of the output end of the detecting electric cylinder according to the pressure signal.

[0008] By adopting the above technical solutions, when a tester conducts a test, first, the trigger threshold of the pressure sensor (the trigger threshold is the weight of the reagent tube plus 4 grams) is input through the control main board. Then, the reagent tube is placed into the test tube, so that the reagent tube falls on the pressure sensor of the detecting plate. Then, a sample is added into the reagent tube. When the added sample is 4 grams or more, the pressure sensor is triggered and sends a start signal to the control main board. After receiving the start signal of the pressure sensor, the control main board will start the contraction of the detecting electric cylinder, so that the detecting plate moves out of the test tube and no longer blocks the connection channel between the test tube and the placing box body, causing the reagent tube to fall into the placing box body. The abutting ring of the dropped reagent tube abuts against the placing ring, so that the reagent tube is caught by the placing ring. At this time, the lower half of the reagent tube is located in the water bath pot. At this time, the tester only needs to start the water bath pot for steaming. After waiting for 10 minutes, the water bath pot is turned off, and the output end of the supporting electric cylinder is started to extend upward, so that the reagent tube moves out of the water bath pot and moves above the water bath pot. Then, the connecting electric cylinder is started to contract the output end of the connecting electric cylinder, so that the reagent tube moves in a direction away from the water bath pot. Then, the tester waits for the reagent tube to cool down, and then the reagent tube can be taken down to extract the sample liquid inside for testing. Through the setting of the above scheme, when the tester extracts the sample liquid, only the reagent tube needs to be placed in the test tube, then the sample is added into the reagent tube, the water bath pot is started after the reagent tube drops, and then the supporting electric cylinder and the connecting electric cylinder are started after 10 minutes. This greatly simplifies the extraction steps of the sample liquid before the test, and the tester does not need to move the test tube from each device, achieving the purpose of omitting the cumbersome test steps and making the tester's detection more convenient.

[0009] Furthermore, an extrusion device for extracting the sample liquid in the reagent tube is provided between the supporting electric cylinder and the water bath. A liquid tube communicating with the reagent tube is provided at the bottom end of the reagent tube. The inner diameter of the liquid tube is smaller than that of the reagent tube. A communication port penetrating the bottom surface of the liquid tube is opened on the bottom surface of the liquid tube, and a thin film for blocking the communication port is provided in the communication port.

[0010] Furthermore, the extrusion device includes a mounting plate disposed between the water bath and the supporting electric cylinder and at the through hole, two extrusion electric cylinders respectively mounted on the mounting plate and on the surface of the placement box body opposite to the mounting plate, and extrusion blocks mounted on the output ends of the two extrusion electric cylinders. The output ends of the two extrusion electric cylinders are oppositely arranged. A mounting hole penetrating the mounting plate is opened on the bottom surface of the mounting plate. Side baffles extending into the interior of the placement box body are provided on both sides of the mounting hole. A board card with a ractopamine test paper is placed between the two side baffles. A limiting plate for preventing the board card from moving too much is provided between the ends of the two side baffles away from the mounting plate.

[0011] By adopting the above technical solution, although the setting of the testing device and the supporting device omits the cumbersome detection steps and makes it more convenient for the testers to detect, the testers still need to wait for the reagent tube to cool down before extracting the liquid in the reagent tube. Otherwise, the testers are easily scalded by the reagent tube, and this waiting time will also affect the detection speed of the testers. The setting of the extrusion device solves this technical problem. By setting the extrusion device, when the tester starts the connecting electric cylinder and the output end of the connecting electric cylinder contracts, the supporting electric cylinder is started to contract, so that the reagent tube will move between the two extrusion blocks during the movement of the output end of the connecting electric cylinder. At this time, the tester closes the connecting electric cylinder, so that the reagent tube pauses here. Then the tester starts the two extrusion electric cylinders to extend, so that the two extrusion blocks extrude the reagent tube or the liquid tube. After the reagent tube or the liquid tube is extruded, the thin film is flushed open, so that the liquid sample in the liquid tube drops from the liquid tube onto the ractopamine test paper of the board card. The tester can obtain the detection result by observing the board card. By setting the extrusion device, the tester can extract the sample liquid in the reagent tube without touching the reagent tube, so that the tester can complete the detection without waiting for the reagent tube to cool down, further improving the detection efficiency of the tester.

[0012] Furthermore, a placement device for placing the reagent tube is provided in the detection tube.

[0013] Furthermore, the placement device includes a placement tube provided in the internal detection tube and having the same outer diameter as the abutting ring, and fixing screws provided on both sides outside the detection tube and extending into the detection tube and threadedly connected to the placement tube.

[0014] By adopting the above technical solution, through the setting of the placement tube, the tester can drive the connecting electric cylinder to extend so that the center of the placement ring is concentric with the placement tube, so that the reagent tube can fall more accurately into the placement ring when it drops. By supporting the placement tube with the fixing screw, the placement tube can be made not to contact the pressure sensor on the detection board, thus ensuring the accuracy of the pressure sensor.

[0015] Further, a positioning device for positioning the reagent tube is provided above the two extrusion electric cylinders.

[0016] Further, the positioning device includes an infrared emitter for emitting infrared rays and an infrared receiver for receiving infrared rays. When the infrared receiver does not receive the infrared signal, it will send a closing signal to the connecting electric cylinder, and the infrared receiver is signal-connected to the connecting electric cylinder.

[0017] By adopting the above technical solution, although the setting of the extrusion device enables the tester to complete the detection without waiting for the reagent tube to cool, further improving the detection efficiency of the tester, when the tester controls the connecting electric cylinder to move the reagent tube between the two extrusion blocks, it cannot be very accurately controlled. Therefore, the tester may need to adjust multiple times to ensure that the reagent tube moves between the two extrusion blocks. The setting of the positioning device solves this technical problem. When the user starts the connecting electric cylinder so that the output end of the connecting electric cylinder contracts, during this process, the reagent tube will be moved between the two extrusion blocks by the output end of the connecting electric cylinder. At this time, the reagent tube blocks the infrared rays of the infrared emitter, and when the infrared receiver does not receive the infrared signal, it will send a closing signal to the connecting electric cylinder. At this time, the connecting electric cylinder closes, and then the tester only needs to start the extrusion electric cylinder to extrude the reagent tube.

[0018] Further, the reagent tube and the liquid tube are mainly made of thermoplastic elastomer.

[0019] By adopting the above technical solution, thermoplastic elastomer combines the elasticity of rubber and the processability of plastic, and has excellent high-temperature resistance, softness and elasticity.

[0020] In summary, the present application includes at least one of the following beneficial technical effects: Through the setting of the support device and the testing device, when the tester extracts the sample liquid, only need to place the reagent tube in the test tube, then add the sample into the reagent tube, start the water bath after the reagent tube drops, and then start the support electric cylinder and the connecting electric cylinder after 10 minutes. This greatly simplifies the steps of extracting the sample liquid before detection, and the tester does not need to move the test tube from each device, achieving the purpose of omitting the cumbersome detection steps and making the detection of the tester more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the embodiment; Figure 2 It is a cross-sectional view along the Figure 1 A-A line in Figure 3 It is Figure 2 an enlarged view of part A in Figure 4 It is Figure 1 an enlarged view of part B in

[0022] Reference numerals: 1, placement box body; 10, detection tube; 11, through port; 2, reagent tube; 20, abutting ring; 21, liquid tube; 22, film; 3, water bath; 4, support device; 40, support electric cylinder; 41, connection electric cylinder; 42, placement ring; 5, test device; 50, detection electric cylinder; 51, detection plate; 52, pressure sensor; 53, control main board; 6, extrusion device; 60, mounting plate; 61, extrusion electric cylinder; 62, extrusion block; 63, mounting port; 64, side baffle; 65, limiting plate; 7, board card; 8, placement device; 80, placement tube; 81, fixing screw; 9, positioning device; 90, infrared emitter; 91, infrared receiver. Specific embodiments

[0023] The following further elaborates on the present application with reference to the accompanying drawings.

[0024] For the embodiment, refer to Figure 1 and Figure 2 and Figure 3, A kit for rapid detection of ractopamine, comprising a placement box body 1, reagent tubes 2, a detection tube 10 arranged on the upper surface of the placement box body 1 and communicating with the inside of the placement box body 1, a water bath 3 arranged below the detection tube 10 inside the placement box body 1, and a support device 4 arranged on one side of the water bath 3 for support. A testing device 5 for detecting whether the weight of the sample inside the reagent tube 2 meets the standard is arranged inside the detection tube 10. The detection tube 10 is used for placing the reagent tube 2. A through hole 11 penetrating the placement box body 1 is provided on one side of the placement box body 1. The support device 4 includes a support electric cylinder 40 arranged on the side of the placement box body 1 away from the water bath 3 inside the placement box body 1, a connecting electric cylinder 41 arranged on the output end of the support electric cylinder 40, and a placement ring 42 arranged on the output end of the connecting electric cylinder 41. An abutting ring 20 for abutting against the placement ring 42 is provided at the upper edge of the reagent tube 2. The output end of the support electric cylinder 40 faces upward, and the output end of the connecting electric cylinder 41 faces the water bath 3 and extends onto the water bath 3. The abutting ring 20 is located below the detection tube 10. The testing device 5 includes a detection electric cylinder 50 arranged on the upper surface of the placement box body 1 and on one side of the detection tube 10, a detection plate 51 arranged on the output end of the detection electric cylinder 50 and inserted into the detection tube 10 from one side below the detection tube 10, and a pressure sensor 52 arranged on the detection plate 51. A control main board 53 for controlling the pressure sensor 52 is installed on the upper surface of the placement box body 1. The control main board 53 is signal-connected to the pressure sensor 52 and the detection electric cylinder 50. The detection plate 51 is located inside the detection tube 10 and blocks the connection channel between the detection tube 10 and the placement box body 1. The control main board 53 is used to receive the pressure signal of the pressure sensor and start the telescopic movement of the output end of the detection electric cylinder 50 according to the pressure signal. When a tester conducts a detection, first, the trigger threshold of the pressure sensor 52 (the trigger threshold is the weight of the reagent tube 2 plus 4 grams) is input through the control main board 53. Then, the reagent tube 2 is placed into the detection tube 10, so that the reagent tube 2 drops onto the pressure sensor 52 of the detection plate 51. Then, a sample is added to the reagent tube 2. When the added sample is 4 grams or more, the pressure sensor 52 is triggered and sends a start signal to the control main board 53. After receiving the start signal of the pressure sensor, the control main board 53 will start the detection electric cylinder 50 to contract, so that the detection plate 51 moves out of the detection tube 10 and no longer blocks the connection channel between the detection tube 10 and the placement box body 1, so that the reagent tube 2 drops into the placement box body 1. The abutting ring 20 of the dropped reagent tube 2 abuts against the placement ring 42, so that the reagent tube 2 is caught by the placement ring 42. At this time, the lower half of the reagent tube 2 is located inside the water bath 3. At this time, the tester only needs to start the water bath 3 for steaming. After waiting for 10 minutes, the water bath 3 is turned off, and the output end of the support electric cylinder 40 is started to extend upward, so that the reagent tube 2 moves out of the water bath 3 and moves above the water bath 3. Then, the connecting electric cylinder 41 is started so that the output end of the connecting electric cylinder 41 contracts, so that the reagent tube 2 moves in a direction away from the water bath 3. Then, the tester waits for the reagent tube 2 to cool down, and then the reagent tube 2 can be taken down to extract the sample liquid inside for detection.With the setting of the above solution, when the tester extracts the sample liquid, he only needs to place the reagent tube 2 in the test tube 10, then add the sample into the reagent tube 2. After the reagent tube 2 drops, start the water bath 3, and then start the support electric cylinder 40 and the connecting electric cylinder 41 after 10 minutes. This greatly simplifies the steps of extracting the sample liquid before detection, and the tester does not need to move the test tube 10 from each device, achieving the purpose of omitting the cumbersome detection steps and making it more convenient for the tester to detect.

[0025] Although the settings of the testing device 5 and the supporting device 4 omit the cumbersome detection steps and make it more convenient for the testers to detect, the testers still need to wait for the reagent tube 2 to cool down before extracting the liquid in the reagent tube 2. Otherwise, the testers are likely to be scalded by the reagent tube 2, and this waiting time will also affect the detection speed of the testers. To solve this technical problem, in this embodiment, an extrusion device 6 for extracting the sample liquid in the reagent tube 2 is provided between the supporting electric cylinder 40 and the water bath 3. A liquid tube 21 communicating with the reagent tube 2 is provided at the bottom end of the reagent tube 2. The inner diameter of the liquid tube 21 is smaller than that of the reagent tube 2. A communication port penetrating the bottom surface of the liquid tube 21 is opened on the bottom surface of the liquid tube 21, and a thin film 22 for blocking the communication port is provided in the communication port. The extrusion device 6 includes a mounting plate 60 disposed between the water bath 3 and the supporting electric cylinder 40 and located at the through hole 11, two extrusion electric cylinders 61 respectively mounted on the mounting plate 60 and on the surface of the placement box body 1 opposite to the mounting plate 60, and an extrusion block 62 mounted on the output ends of the two extrusion electric cylinders 61. The output ends of the two extrusion electric cylinders 61 are oppositely arranged. A mounting opening 63 penetrating the mounting plate 60 is opened on the bottom surface of the mounting plate 60. Side baffles 64 extending into the interior of the placement box body 1 are provided on both sides of the mounting opening 63. A board 7 with a ractopamine test paper is placed between the two side baffles 64. A limiting plate 65 for preventing the board 7 from moving too much is provided between the ends of the two side baffles 64 away from the mounting plate 60. Through the setting of the extrusion device 6, when the tester starts the connecting electric cylinder 41 and the output end of the connecting electric cylinder 41 contracts, the tester starts the supporting electric cylinder 40 to contract, so that the reagent tube 2 will move between the two extrusion blocks 62 during the movement of the reagent tube 2 by the output end of the connecting electric cylinder 41. At this time, the tester closes the connecting electric cylinder 41 to make the reagent tube 2 pause here. Then the tester starts the two extrusion electric cylinders 61 to extend, so that the two extrusion blocks 62 extrude the reagent tube 2 or the liquid tube 21. After the reagent tube 2 or the liquid tube 21 is extruded, the thin film 22 is flushed open, so that the liquid sample in the liquid tube 21 drops from the liquid tube 21 onto the ractopamine test paper of the board 7. The tester can obtain the test result by observing the board 7. Through the setting of the extrusion device 6, the tester can extract the sample liquid in the reagent tube 2 without touching the reagent tube 2, so that the tester can complete the detection without waiting for the reagent tube 2 to cool down, further improving the detection efficiency of the tester. Moreover, the reagent tube 2 and the liquid tube 21 are mainly made of thermoplastic elastomer, and the thermoplastic elastomer combines the elasticity of rubber and the processability of plastic, and has excellent high temperature resistance, softness and elasticity.

[0026] In this embodiment, a placement device 8 for placing the reagent tube 2 is provided inside the detection tube 10. The placement device 8 includes a placement tube 80 provided inside the detection tube 10 and having an inner diameter the same as the outer diameter of the abutting ring 20, and fixing screws 81 provided on both sides outside the detection tube 10 and extending into the detection tube 10 and threadedly connected to the placement tube 80. Through the setting of the placement tube 80, the tester can make the center of the placement ring 42 concentric with the placement tube 80 by driving the extension of the connecting electric cylinder 41, so that the reagent tube 2 can fall more accurately into the placement ring 42 when it drops. By supporting the placement tube 80 with the fixing screws 81, the placement tube 80 can be made not to contact the pressure sensor 52 on the detection plate 51, thus ensuring the accuracy of the pressure sensor 52.

[0027] Although the setting of the extrusion device 6 enables the tester to complete the detection without waiting for the reagent tube 2 to cool, further improving the detection efficiency of the tester, when the tester controls the connecting electric cylinder 41 to move the reagent tube 2 between the two extrusion blocks 62, it cannot be very accurately controlled. Therefore, the tester may need to adjust multiple times to ensure that the reagent tube 2 moves between the two extrusion blocks 62. Referring to Figure 4 To solve this technical problem, in this embodiment, a positioning device 9 for positioning the reagent tube 2 is provided above the two extrusion electric cylinders 61. The positioning device 9 includes an infrared emitter 90 for emitting infrared rays and an infrared receiver 91 for receiving infrared rays. When the infrared receiver 91 does not receive the infrared signal, it will send a shutdown signal to the connecting electric cylinder 41. The infrared receiver 91 is signal-connected to the connecting electric cylinder 41. When the user starts the connecting electric cylinder 41 to make the output end of the connecting electric cylinder 41 contract, during this process, the reagent tube 2 will be moved to between the two extrusion blocks 62 by the output end of the connecting electric cylinder 41. At this time, the reagent tube 2 blocks the infrared rays of the infrared emitter 90. When the infrared receiver 91 does not receive the infrared signal, it will send a shutdown signal to the connecting electric cylinder 41. At this time, the connecting electric cylinder 41 is closed. At this time, the tester only needs to start the extrusion electric cylinder 61 to extrude the reagent tube 2.

[0028] Specific implementation process: First, the trigger threshold of the pressure sensor 52 is input through the control main board 53 (the trigger threshold is the weight of the reagent tube 2 plus 4 grams). Then, the reagent tube 2 is placed into the placement tube 80, causing the reagent tube 2 to fall onto the pressure sensor 52 of the detection board 51. Then, a sample is added to the reagent tube 2. When the added sample is 4 grams or more, the pressure sensor 52 is triggered and sends a start signal to the control main board 53. After receiving the start signal from the pressure sensor, the control main board 53 will start the detection electric cylinder 50 to contract, causing the detection board 51 to move out of the detection tube 10, no longer blocking the connection channel between the detection tube 10 and the placement box body 1, so that the reagent tube 2 falls into the placement box body 1. The abutting ring 20 of the fallen reagent tube 2 abuts against the placement ring 42, causing the reagent tube 2 to be caught by the placement ring 42. At this time, the lower half of the reagent tube 2 is located in the water bath 3. At this time, the tester only needs to start the water bath 3 for steaming. After waiting for 10 minutes, turn off the water bath 3 and start the support electric cylinder 40 so that the output end extends upward, causing the reagent tube 2 to move out of the water bath 3 and move above the water bath 3. Then start the connection electric cylinder 41 so that the output end of the connection electric cylinder 41 contracts, causing the reagent tube 2 to move away from the water bath 3. Then start the support electric cylinder 40 to contract, causing the reagent tube 2 to move between the two extrusion blocks 62 during the movement by the output end of the connection electric cylinder 41. When the reagent tube 2 moves between the two extrusion blocks 62, the reagent tube 2 blocks the infrared rays of the infrared emitter 90. When the infrared receiver 91 does not receive the infrared signal, it will send a closing signal to the connection electric cylinder 41. At this time, the connection electric cylinder 41 is closed. Then the tester starts the two extrusion electric cylinders 61 to extend, causing the two extrusion blocks 62 to squeeze the reagent tube 2 or the liquid tube 21. After the reagent tube 2 or the liquid tube 21 is squeezed, the film 22 is broken open, causing the liquid sample in the liquid tube 21 to fall from the liquid tube 21 onto the ractopamine test paper of the board 7. The tester can observe the board 7 to obtain the test result.

[0029] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A kit for rapid detection of ractopamine, characterized in that, It includes a placement box body (1), a reagent tube (2), a detection tube (10) arranged on the upper surface of the placement box body (1) and communicating with the inside of the placement box body (1), a water bath (3) arranged below the detection tube (10) inside the placement box body (1), and a support device (4) arranged on one side of the water bath (3) for support. A testing device (5) for detecting whether the weight of the sample inside the reagent tube (2) meets the standard is arranged inside the detection tube (10). The detection tube (10) is used for placing the reagent tube (2). A through hole (11) penetrating the placement box body (1) is opened on one side of the placement box body (1).

2. The kit for rapid detection of ractopamine according to claim 1, wherein The support device (4) includes a support electric cylinder (40) arranged on the side of the placement box body (1) away from the water bath (3) inside the placement box body, a connecting electric cylinder (41) arranged on the output end of the support electric cylinder (40), and a placement ring (42) arranged on the output end of the connecting electric cylinder (41). An abutting ring (20) for abutting against the placement ring (42) is arranged at the upper edge of the reagent tube (2). The output end of the support electric cylinder (40) faces upward, the output end of the connecting electric cylinder (41) faces the water bath (3) and extends onto the water bath (3), and the abutting ring (20) is located below the detection tube (10).

3. The kit for rapid detection of ractopamine according to claim 1, wherein, The testing device (5) includes a detection electric cylinder (50) arranged on the upper surface of the placement box body (1) and on one side of the detection tube (10), a detection plate (51) arranged on the output end of the detection electric cylinder (50) and inserted into the detection tube (10) from one side below the detection tube (10), and a pressure sensor (52) arranged on the detection plate (51). A control main board (53) for controlling the pressure sensor (52) is installed on the upper surface of the placement box body (1). The control main board (53) is signal-connected to the pressure sensor (52) and the detection electric cylinder (50). The detection plate (51) is located inside the detection tube (10) and blocks the connection channel between the detection tube (10) and the placement box body (1). The control main board (53) is used to receive the pressure signal of the pressure sensor and start the telescopic movement of the output end of the detection electric cylinder (50) according to the pressure signal.

4. The kit for rapid detection of ractopamine according to claim 2, characterized in that, An extrusion device (6) for extracting the sample liquid inside the reagent tube (2) is arranged between the support electric cylinder (40) and the water bath (3). A liquid tube (21) communicating with the reagent tube (2) is arranged at the bottom end of the reagent tube (2). The inner diameter of the liquid tube (21) is smaller than that of the reagent tube (2). A through hole penetrating the bottom surface of the liquid tube (21) is opened on the bottom surface of the liquid tube (21), and a thin film (22) for blocking the through hole is arranged inside the through hole.

5. The kit for rapidly detecting ractopamine according to claim 4, characterized in that, The extrusion device (6) includes a mounting plate (60) disposed between the water bath (3) and the support electric cylinder (40) and located at the through opening (11), two extrusion electric cylinders (61) respectively mounted on the mounting plate (60) and on one side of the placement box body (1) opposite to the mounting plate (60), and an extrusion block (62) mounted on the output ends of the two extrusion electric cylinders (61). The output ends of the two extrusion electric cylinders (61) are oppositely arranged. An installation opening (63) penetrating the mounting plate (60) is formed on the bottom surface of the mounting plate (60). Side baffles (64) extending into the interior of the placement box body (1) are provided on both sides of the installation opening (63). A board card (7) with a ractopamine test paper is placed between the two side baffles (64). A limiting plate (65) for preventing the board card (7) from moving excessively is provided between the ends of the two side baffles (64) away from the mounting plate (60).

6. The kit for rapid detection of ractopamine according to claim 1, wherein A placement device (8) for placing the reagent tube (2) is provided inside the detection tube (10).

7. The kit for rapid detection of ractopamine according to claim 6, wherein, The placement device (8) includes a placement tube (80) provided inside the inner detection tube (10) and having an inner diameter the same as the outer diameter of the abutting ring (20), and fixing screws (81) provided on both outer sides of the detection tube (10) and extending into the detection tube (10) and threadedly connected to the placement tube (80).

8. The kit for rapid detection of ractopamine according to claim 5, characterized in that, Above the two extrusion electric cylinders (61), a positioning device (9) for positioning the reagent tube (2) is provided.

9. The kit for rapid detection of ractopamine according to claim 8, characterized in that, The positioning device (9) includes an infrared emitter (90) for emitting infrared rays and an infrared receiver (91) for receiving infrared rays. When the infrared receiver (91) does not receive an infrared signal, it will send a closing signal to the connection electric cylinder (41). The infrared receiver (91) is signal-connected to the connection electric cylinder (41).

10. The kit for rapid detection of ractopamine according to claim 4, wherein The reagent tube (2) and the liquid tube (21) are mainly made of thermoplastic elastomer.

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