Defect detection device for health care product detection

Abstract

The invention provides a defect detection device for health care product detection, and the defect detection device comprises a test tube seat, three groups of test tube grooves and a dynamic detection mechanism, and relates to the technical field of health care product detection.By means of the dynamic detection mechanism, synchronous gas replacement can be carried out on detection liquid in the three groups of test tube grooves arranged front and back in the test tube seat; inert gases such as nitrogen and the like can be injected into the test tube groove, so that all oxygen in the test tube groove is discharged through the exhaust port and the discharge tube, and the problems of unstable chromogenic reaction and reduced sensitivity caused by oxygen interference in traditional detection are effectively solved, so that the accuracy and reproducibility of a detection result of the chromogenic reaction are improved; the dynamic detection mechanism adopts a rotary exhaust mode, and the rotary exhaust can deeply, comprehensively and fully act inert gas on each corner of each test tube groove, so that the thoroughness of gas replacement is ensured, and the influence of local oxygen residue on a detection result is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of health care product detection, and in particular to a defect detection device for health care product detection. Background Art

[0002] In the field of health care product quality control, meticulous defect detection of liquid health care products is a key link in ensuring product safety and effectiveness. Among them, the detection of harmful substances such as heavy metals such as lead and cadmium is particularly important. This type of detection often uses a colorimetric reaction method, that is, using specific reagents to react with heavy metal ions to generate colored compounds for quantitative analysis. However, this type of colorimetric reaction system is generally sensitive to oxygen in the environment. Oxygen will oxidize the color developer, reaction intermediates and even the final colored product, resulting in lighter color, unstable absorbance or even complete fading, resulting in reduced detection sensitivity and poor reproducibility of results. It is difficult to accurately judge the actual content of heavy metals in health care products, which not only affects the assessment of potential safety risks of products, but also increases the uncertainty of quality control. Summary of the Invention

[0003] The present invention aims to provide a defect detection device for health product testing. This device can address the problem of traditional test tube cleaning methods relying heavily on manual operation, such as using a test tube brush for manual scrubbing. This method is not only labor-intensive and inefficient, but also makes it difficult to ensure that the inner wall of each test tube is cleaned evenly and thoroughly, especially for hard-to-reach areas such as the bottom of the test tube. Furthermore, the consistency of the manual cleaning process is difficult to control, and different operators may vary in their technique, strength, and cleaning time, further increasing the uncertainty of the cleaning effect.

[0004] The present invention provides a defect detection device for health care product testing, comprising a test tube holder, three groups of test tube slots, and a dynamic detection mechanism. The test tube holder is provided with three groups of test tube slots, which are arranged in a front-to-back manner. The dynamic detection mechanism is located above the test tube holder, and the dynamic detection mechanism extends into each test tube slot through its downwardly extending portion, thereby performing synchronous gas replacement in each test tube slot. The dynamic detection mechanism includes a gas replacement unit for performing gas replacement on oxygen in a test liquid in the test tube slot, a supply unit for distributing inert gas to the gas replacement unit, an execution unit for driving the gas replacement unit to perform dynamic replacement, and a transmission unit for transmitting power of the execution unit to the gas replacement unit.

[0005] Preferably, the gas replacement unit includes a transmission box, three groups of replacement pipes, multiple exhaust pipes, multiple connecting rods, a cleaning brush and a discharge pipe. The three groups of replacement pipes are connected to the bottom of the transmission box through sealed bearings, and the three groups of replacement pipes are respectively located directly above the three groups of test tube grooves. Each of the replacement pipes is provided with multiple exhaust pipes, and the exhaust pipes are connected to the replacement pipes. The outer wall of each of the replacement pipes is also connected to a cleaning brush through multiple connecting rods. Three groups of exhaust ports are opened at the bottom of the transmission box, and a discharge pipe is fixedly provided on the top of the transmission box.

[0006] Preferably, the supply unit includes two support plates, three air supply pipes, two connecting pipes, a delivery pipe and a group of distribution pipes. The two support plates are respectively fixed on the left and right sides of the top outside the transmission box. The three air supply pipes are fixed between the two support plates, and the three air supply pipes are arranged in front and back. The three air supply pipes correspond to three groups of replacement pipes respectively. The three air supply pipes are connected through the two connecting pipes. One end of the delivery pipe is connected to one of the air supply pipes. A group of distribution pipes is fixedly connected to the bottom of each air supply pipe. The distribution pipes are fixed through the top of the transmission box, and the outer wall of each group of distribution pipes is connected to the inner wall of each group of replacement pipes through a sealed bearing.

[0007] Preferably, the transmission unit includes three groups of worm gears, three transmission shafts and multiple worms. The three groups of worm gears are fixedly mounted on the outer walls of the three groups of replacement pipes respectively. The two ends of the three transmission shafts are rotatably connected to the left and right sides of the transmission box respectively, and each transmission shaft is provided with multiple worms, and each worm is engaged with the corresponding worm gear.

[0008] Preferably, the execution unit includes a gearbox, a motor, a rotating shaft, three first bevel gears and three second bevel gears. The gearbox is fixedly arranged on the right side outside the transmission box, the motor is fixedly arranged on the front side outside the gearbox, and the driving end of the motor moves through the front side of the gearbox. One end of the rotating shaft is rotatably connected to the rear side of the gearbox, and the other end of the rotating shaft is fixedly connected to the driving end of the motor. The three first bevel gears are all fixedly arranged on the rotating shaft, and the three second bevel gears are respectively fixedly connected to one end of the three transmission shafts, and each first bevel gear is meshed with the corresponding second bevel gear.

[0009] Preferably, a drain port is provided at the bottom of each test tube slot, and the drain port is communicated with the test tube slot, a collection box is fixedly provided at the bottom of the test tube holder, a drain pipe is fixedly provided on the right side of the collection box, and a sealing unit for sealing the drain port at the bottom of the test tube slot is fixedly provided inside the test tube holder.

[0010] Preferably, the sealing unit includes an electric telescopic rod, three movable plates, two connecting plates and a group of sealing seats. An inner cavity is opened in the test tube seat, and the electric telescopic rod is fixedly arranged in the inner cavity. The three movable plates are arranged in front and back, and the three movable plates are connected by two connecting plates. The driving end of the electric telescopic rod is fixedly connected to one of the movable plates, and a group of sealing seats are fixedly provided on the top of each movable plate.

[0011] Preferably, a splicing unit is further provided on the test tube holder and the dynamic detection mechanism.

[0012] Preferably, the splicing unit includes two card slots, two card blocks and a locking rod, the two card slots are respectively fixedly arranged on the front and rear sides of the test tube holder, and each of the card slots is provided with a socket, the two card blocks are respectively fixedly arranged on the front and rear sides outside the transmission box, and each of the card blocks is provided with a positioning hole corresponding to the socket, and the card slots and the card blocks are connected by a locking rod.

[0013] Preferably, a sealing gasket is fixedly provided on the top of the sealing seat.

[0014] The present invention provides a defect detection device for health product testing through improvements. Compared with the prior art, the present invention has the following improvements and advantages: the present invention uses a dynamic detection mechanism to synchronously replace the test liquid inside three groups of test tube slots arranged in a front-to-back manner in a test tube holder. The dynamic detection mechanism can continuously inject inert gas such as nitrogen into the test tube slots, so that all oxygen in the test tube slots is discharged through the exhaust port and the exhaust pipe, effectively solving the problems of unstable color development reaction and reduced sensitivity caused by oxygen interference in traditional detection, thereby improving the accuracy and reproducibility of color development reaction detection results. The dynamic detection mechanism adopts a rotary exhaust method. The rotary exhaust can deeply, comprehensively and fully act on every corner of each test tube slot, ensuring the thoroughness of gas replacement and avoiding the impact of local oxygen residue on the test results. In addition, the cleaning brush can clean the test liquid attached to the inner wall of the test tube slot, so that the test liquid can fully participate in the detection, avoiding the problem of insufficient or uneven distribution of the sample actually participating in the reaction due to liquid adhesion to the inner wall, ensuring that the actual sample amount tested is consistent with the theoretical setting, and further ensuring the accuracy and reliability of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the axonometric structure of the present invention when the dynamic detection mechanism and the test tube holder are in a spliced ​​state;

[0017] Figure 2 This is a schematic diagram of the axonometric structure of the present invention when the dynamic detection mechanism and the test tube holder are in a separated state;

[0018] Figure 3 Schematic diagram of the axonometric structure of the dynamic detection mechanism of the present invention;

[0019] Figure 4 Schematic diagram of the axonometric structure of the gas displacement unit and the transmission unit of the present invention;

[0020] Figure 5 Schematic diagram of the top view of the transmission unit and the execution unit of the present invention;

[0021] Figure 6 This is a schematic diagram of the main structure of the test tube holder, sealing unit and collection box of the present invention;

[0022] Figure 7 This is an axonometric structural diagram of the distribution pipe and the replacement pipe of the present invention;

[0023] Figure 8 This is a schematic diagram of the axonometric structure of the supply unit of the present invention;

[0024] Figure 9 This is a schematic diagram of the axonometric structure of the sealing unit of the present invention;

[0025] Figure 10 Schematic diagram of the main structure of the gas replacement unit of the present invention.

[0026] Description of reference numerals:

[0027] 1. Test tube holder; 2. Test tube slot; 3. Gas displacement unit; 31. Transmission box; 32. Displacement pipe; 33. Exhaust pipe; 34. Connecting rod; 35. Cleaning brush; 36. Discharge pipe; 4. Supply unit; 41. Support plate; 42. Gas supply pipe; 43. Connecting pipe; 44. Delivery pipe; 45. Distribution pipe; 5. Transmission unit; 51. Worm gear; 52. Transmission shaft; 53. Worm; 6. Execution unit; 61. Gear box; 62. Motor; 63. Rotating shaft; 64. First bevel gear; 65. Second bevel gear; 7. Sealing unit; 71. Electric telescopic rod; 72. Moving plate; 73. Connecting plate; 74. Sealing seat; 8. Splicing unit; 81. Card slot; 82. Card block; 83. Locking rod; 9. Drain port; 10. Collection box; 11. Drain pipe. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" 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 mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0031] See also Figure 1-10The present invention provides a technical solution: a defect detection device for health care product testing, comprising a test tube holder 1, three groups of test tube slots 2 and a dynamic detection mechanism. Three groups of test tube slots 2 are provided in the test tube holder 1, and the three groups of test tube slots 2 are arranged in front and back. The number of test tube slots 2 in each group is at least four, and they are arranged horizontally from left to right. The dynamic detection mechanism is located above the test tube holder 1, and the dynamic detection mechanism extends into each test tube slot 2 through its downwardly extending part, thereby performing synchronous gas replacement in each test tube slot 2. The dynamic detection mechanism includes a gas replacement unit 3 for gas replacement of oxygen in the detection liquid in the test tube slot 2, a supply unit 4 for distributing inert gas to the gas replacement unit 3, an execution unit 6 for driving the gas replacement unit 3 to perform dynamic replacement, and a transmission unit 5 for transmitting power of the execution unit 6 to the gas replacement unit 3. The execution unit 6 can transmit the driving force to the gas replacement unit 3 through the transmission unit 5.

[0032] Specifically, the gas replacement unit 3 includes a transmission box 31, three groups of replacement pipes 32, multiple exhaust pipes 33, multiple connecting rods 34, a cleaning brush 35 and a discharge pipe 36. The three groups of replacement pipes 32 are connected to the bottom of the transmission box 31 through sealed bearings, and the three groups of replacement pipes 32 are respectively located directly above the three groups of test tube slots 2. The number and position of the three groups of replacement pipes 32 correspond one-to-one to the three groups of test tube slots 2. The transmission box 31 can support the replacement pipes 32, and the replacement pipes 32 can rotate stably at the bottom of the transmission box 31. Each replacement pipe 32 is provided with multiple exhaust pipes 33, and the exhaust pipes 33 are connected to the replacement pipes 32. The exhaust pipes 33 can discharge the inert gas in the replacement pipe 32 into the inner wall of the test tube slot 2, thereby replacing the gas in the detection liquid therein. The outer wall of each replacement pipe 32 is also connected with multiple The connecting rod 34 is connected to a cleaning brush 35, which fits the inner wall of the test tube slot 2 and can physically rub the inner wall of the test tube slot 2, so that the detection liquid can fully participate in the detection, avoiding the problem of insufficient or uneven distribution of the sample actually participating in the reaction due to liquid adhesion to the inner wall. Three groups of exhaust ports are provided at the bottom of the transmission box 31, and each group of exhaust ports corresponds to a group of test tube slots 2. The oxygen discharged from the test tube slots 2 will enter the transmission box 31 through the exhaust port. A discharge pipe 36 is fixedly provided on the top of the transmission box 31. The gas replacement process is that the replacement pipe 32 and the exhaust pipe 33 discharge the inert gas into the detection liquid in the test tube slot 2. When the inert gas enters, the oxygen in the detection liquid will be squeezed out and discharged into the transmission box 31 through the exhaust port. Then the oxygen is discharged through the discharge pipe 36. The discharge pipe 36 itself has an exhaust valve, which is in a closed state when no oxygen is discharged.

[0033] Specifically, the supply unit 4 includes two support plates 41, three air supply pipes 42, two connecting pipes 43, a delivery pipe 44 and a group of distribution pipes 45. The two support plates 41 are fixedly arranged on the left and right sides of the top of the transmission box 31 respectively. The three air supply pipes 42 are fixedly arranged between the two support plates 41, and the three air supply pipes 42 are arranged front to back. The three air supply pipes 42 correspond to the three groups of replacement pipes 32 respectively. The three air supply pipes 42 are the main water supply pipes of the three groups of replacement pipes 32. Each air supply pipe 42 corresponds to a group of replacement pipes 32. The three air supply pipes 42 are connected by two The connecting pipes 43 are connected, one end of the delivery pipe 44 is connected to one of the air supply pipes 42, and the other end of the delivery pipe 44 is connected to the external inert gas supply equipment. A group of distribution pipes 45 are fixedly connected to the bottom of each air supply pipe 42. The distribution pipes 45 are fixedly passed through the top of the transmission box 31, and the outer wall of each group of distribution pipes 45 is connected to the inner wall of each group of replacement pipes 32 through a sealed bearing. A group of distribution pipes 45 corresponds to a group of replacement pipes 32, and each air supply pipe 42 delivers the inert gas to a group of replacement pipes 32 through multiple distribution pipes 45.

[0034] When supplying inert gas, the external inert gas supply equipment delivers the inert gas to one of the three gas supply pipes 42 through the delivery pipe 44, and then distributes the gas among the three gas supply pipes 42 through two connecting pipes 43, ensuring that each gas supply pipe 42 can obtain a stable and sufficient supply of inert gas. Each gas supply pipe 42 serves as a main gas pipeline, responsible for supplying inert gas to its corresponding set of replacement pipes 32. When the inert gas enters a specific gas supply pipe 42, it will flow to the distribution pipe 45 at the bottom of the gas supply pipe 42. The distribution pipe 45 can transport the inert gas to the corresponding replacement pipe 32. These distribution pipes 45 are fixed through the top of the transmission case 31 and are connected to the inner wall of the corresponding replacement pipe 32 through a sealed bearing. This design allows the replacement pipe 32 to rotate on the outer wall of the distribution pipe 45 when the distribution pipe 45 is fixed, and the inert gas will not flow to the outside, ensuring the sealing performance while rotating.

[0035] Specifically, the transmission unit 5 includes three groups of worm gears 51, three transmission shafts 52 and multiple worms 53. The three groups of worm gears 51 are fixedly mounted on the outer walls of the three groups of displacement pipes 32 respectively. Each worm gear 51 corresponds to a displacement pipe 32 to ensure the accuracy of power transmission. The two ends of the three transmission shafts 52 are rotatably connected to the left and right sides of the transmission box 31 respectively. The transmission shaft 52 can rotate flexibly in the transmission box 31, and each transmission shaft 52 is provided with multiple worms 53. Each worm 53 is meshed with the corresponding worm gear 51. The multiple worms 53 are evenly distributed along the length direction of the transmission shaft 52, and each worm 53 is accurately They are meshed with the corresponding worm gears 51, that is, the multiple worms 53 on the first transmission shaft 52 are respectively meshed with the multiple worm gears 51 outside the first group of replacement pipes 32, the multiple worms 53 on the second transmission shaft 52 are respectively meshed with the multiple worm gears 51 outside the second group of replacement pipes 32, and the multiple worms 53 on the third transmission shaft 52 are respectively meshed with the multiple worm gears 51 outside the third group of replacement pipes 32. This one-to-one meshing relationship ensures that power can be efficiently and stably transmitted from the transmission shaft 52 to the replacement pipe 32, driving the replacement pipe 32 and its exhaust pipe 33, connecting rod 34 and cleaning brush 35 to rotate.

[0036] Specifically, the execution unit 6 includes a gearbox 61, a motor 62, a rotating shaft 63, three first bevel gears 64 and three second bevel gears 65. The gearbox 61 is fixedly arranged on the right side outside the transmission box 31, the motor 62 is fixedly arranged on the front side outside the gearbox 61, and the driving end of the motor 62 moves through the front side of the gearbox 61, one end of the rotating shaft 63 is rotatably connected to the rear side of the gearbox 61, and the other end of the rotating shaft 63 is fixedly connected to the driving end of the motor 62. The three first bevel gears 64 are all fixedly arranged on the rotating shaft 63, and the three second bevel gears 65 are respectively fixedly connected to one end of the three transmission shafts 52, and each first bevel gear 64 is meshed with the corresponding second bevel gear 65. The rotational transmission force generated by the motor 62, the rotating shaft 63 and the first bevel gear 64 fixed thereon can be synchronously and efficiently transmitted to the corresponding second bevel gears 65 through meshing, thereby driving the three transmission shafts 52 to rotate synchronously.

[0037] Specifically, a drain port 9 is provided at the bottom of each test tube slot 2, and the drain port 9 is connected to the test tube slot 2. The drain port 9 ensures that the test liquid and cleaning liquid in the test slot can be discharged smoothly. A collecting box 10 is fixedly provided at the bottom of the test tube holder 1, and a drain pipe 11 is fixedly provided on the right side of the collecting box 10. The collecting box 10 is used to receive the liquid flowing out of each drain port 9. The drain pipe 11 is the final discharge channel for the waste liquid in the collecting box 10. A sealing unit 7 for sealing the drain port 9 at the bottom of the test tube slot 2 is fixedly provided in the test tube holder 1. The sealing unit 7 can accurately and dynamically seal or open the drain port 9 at the bottom of each test tube slot 2 as needed to prevent liquid leakage during the cleaning process or in the non-drainage state, and it is also convenient to open the drain port 9 for drainage when needed.

[0038] Specifically, the sealing unit 7 includes an electric telescopic rod 71, three movable plates 72, two connecting plates 73 and a group of sealing seats 74. An inner cavity is opened in the test tube holder 1, and the inner cavity is opened in the center of the test tube holder 1. The electric telescopic rod 71 is fixedly set in the inner cavity. The three movable plates 72 are arranged in front and back, and the three movable plates 72 are connected by two connecting plates 73. The three movable plates 72 correspond to three groups of test slots. The driving end of the electric telescopic rod 71 is fixedly connected to one of the movable plates 72. The two connecting plates 73 form the three movable plates 72 into a whole, which moves synchronously with the electric telescopic rod 71. A group of sealing seats 74 are fixedly set on the top of each movable plate 72, and the sealing seat 74 matches the drain port 9.

[0039] When the electric telescopic rod 71 contracts, it drives the movable plate 72 upward. At this point, the sealing seat 74 mounted on the top of the movable plate 72 extends into the bottom of the corresponding test tube slot 2, precisely covering and sealing the drain port 9. Conversely, when the electric telescopic rod 71 extends, the movable plate 72 assembly moves downward, and the sealing seat 74 moves away from the drain port 9, opening the drain port 9 and allowing liquid to flow out. By controlling the extension and retraction of the electric telescopic rod 71, the opening and closing of the drain ports 9 of all test tube slots 2 can be conveniently controlled.

[0040] Specifically, a splicing unit 8 is further provided on the test tube holder 1 and the dynamic detection mechanism. The splicing unit 8 is used to connect the dynamic detection mechanism and the test tube holder 1 to make the connection between the two tighter and improve the sealing stability.

[0041] Specifically, the splicing unit 8 includes two slots 81, two blocks 82 and a locking rod 83. The two slots 81 are fixedly arranged on the front and rear sides of the test tube holder 1, and each slot 81 is provided with a socket. The two blocks 82 are fixedly arranged on the front and rear sides of the transmission box 31, and each block 82 is provided with a positioning hole corresponding to the socket. The slots 81 and the blocks 82 are connected by a locking rod 83.

[0042] When the dynamic detection mechanism needs to be installed, the operator moves the transmission box 31 above the test tube holder 1 so that the blocks 82 on the front and rear sides of the transmission box 31 are aligned with the slots 81 on the front and rear sides of the test tube holder 1. Because the shapes of the blocks 82 and the slots 81 are designed to match, the blocks 82 can be smoothly inserted into the slots 81. During the insertion of the blocks 82 into the slots 81, the positioning holes on the blocks 82 will naturally align with the sockets on the slots 81. The operator passes the locking rod 83 through the aligned sockets and positioning holes. Once the locking rod 83 has passed through, the two are fixed together.

[0043] Specifically, a sealing gasket is fixedly provided on the top of the sealing seat 74 to enhance the sealing effect of the sealing seat 74.

[0044] Working principle: When performing defect detection on health products, first take an appropriate amount of liquid health product sample, put it into the test tube slot 2, and add a color developer solution of a specific heavy metal to the test tube. Different heavy metals require different color developers. Then the dynamic detection mechanism and the test tube holder are spliced ​​and installed. The operator moves the transmission box 31 to the top of the test tube holder 1, aligns the blocks 82 on the front and back sides of the transmission box 31 with the slots 81 on the front and back sides of the test tube holder 1, and inserts the block 82 into the slot 81. Since the positioning hole on the block 82 is naturally aligned with the jack on the slot 81, the operator passes the locking rod 83 through the two holes, thereby firmly connecting the transmission box 31 and the test tube holder 1 together. At the same time, the splicing unit 8 ensures the sealing of the connection between the two.

[0045] Next, the external inert gas supply device is activated and begins operation, delivering inert gas to one of the three supply pipes 42 via delivery pipe 44. The inert gas is distributed among the three supply pipes 42 via two connecting pipes 43, ensuring that each pipe 42 receives a stable and sufficient supply of inert gas. A distribution pipe 45 at the bottom of each supply pipe 42 delivers the inert gas to the corresponding displacement pipe 32. The distribution pipe 45 is connected to the rotating displacement pipe 32 via a sealed bearing, ensuring that the displacement pipe 32 can rotate freely without leakage while supplying gas.

[0046] Then, the execution unit 6 is started to perform dynamic gas replacement. The motor 62 starts to run, and its driving end drives the rotating shaft 63 fixed to it to rotate. The three first bevel gears 64 fixed on the rotating shaft 63 rotate accordingly, and through engagement with the three second bevel gears 65, the power is transmitted to the second bevel gears 65. Each second bevel gear 65 is fixed to one end of a transmission shaft 52, so that the three transmission shafts 52 are driven to rotate synchronously. The multiple worm gears 53 on the transmission shaft 52 rotate accordingly, and through engagement with the multiple worm gears 51 fixed to the outer wall of the replacement pipe 32, the power is transmitted to the three groups of replacement pipes 32, driving the replacement pipe 32 and the exhaust pipe 33, connecting rod 34 and cleaning brush 35 thereon to rotate.

[0047] While the replacement pipe 32 rotates, the supply unit 4 continues to work to ensure that the exhaust pipe 33 can continuously discharge the inert gas to every part of the liquid health product in the test tube tank 2. When the inert gas enters, the oxygen in the test liquid will be squeezed out and discharged into the transmission box 31 through the exhaust port. The oxygen is then discharged through the exhaust pipe 36. At the same time, the cleaning brush can clean the test liquid attached to the inner wall of the test tube tank, so that the test liquid can fully participate in the test, avoiding the problem of insufficient or uneven distribution of the actual sample amount participating in the reaction due to the liquid adhering to the inner wall. During the entire rotating gas replacement process, the supply unit 4 always maintains the gas supply to the gas replacement unit 3.

[0048] After the test is completed, the staff controls the electric telescopic rod 71 to extend, the movable plate 72 assembly moves downward, and the sealing seat 74 moves away from the drain port 9, thereby opening the drain port 9 and allowing the liquid to flow out. By controlling the extension and retraction of the electric telescopic rod 71, the opening and closing of the drain ports 9 of all test tube slots 2 can be conveniently controlled.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A defect detection device for health care products, characterized in that: The invention comprises a test tube seat (1), three groups of test tube slots (2) and a dynamic detection mechanism. The test tube seat (1) is provided with three groups of test tube slots (2), which are arranged in a front-to-back manner. The dynamic detection mechanism is located above the test tube seat (1) and extends into each test tube slot (2) through its downwardly extending portion, thereby performing synchronous gas replacement in each test tube slot (2). The dynamic detection mechanism comprises a gas replacement unit (3) for performing gas replacement on oxygen in a detection liquid in the test tube slot (2), a supply unit (4) for distributing inert gas to the gas replacement unit (3), an execution unit (6) for driving the gas replacement unit (3) to perform dynamic replacement, and a transmission unit (5) for transmitting power of the execution unit (6) to the gas replacement unit (3).

2. A defect detection device for health care products according to claim 1, characterized in that: The gas replacement unit (3) comprises a transmission box (31), three groups of replacement pipes (32), a plurality of exhaust pipes (33), a plurality of connecting rods (34), a cleaning brush (35) and a discharge pipe (36). The three groups of replacement pipes (32) are connected to the bottom of the transmission box (31) through a sealing bearing, and the three groups of replacement pipes (32) are respectively located directly above the three groups of test tube slots (2). Each of the replacement pipes (32) is provided with a plurality of exhaust pipes (33), and the exhaust pipes (33) are connected to the replacement pipe (32). The outer wall of each replacement pipe (32) is also connected to a cleaning brush (35) through a plurality of connecting rods (34). The bottom of the transmission box (31) is provided with three groups of exhaust ports, and the top of the transmission box (31) is fixedly provided with a discharge pipe (36).

3. A defect detection device for health care products according to claim 2, characterized in that: The supply unit (4) comprises two support plates (41), three air supply pipes (42), two connecting pipes (43), a delivery pipe (44) and a group of distribution pipes (45). The two support plates (41) are fixedly arranged on the left and right sides of the top of the transmission box (31), respectively. The three air supply pipes (42) are fixedly arranged between the two support plates (41), and the three air supply pipes (42) are arranged in a front-to-back manner. The three air supply pipes (42) correspond to three groups of replacement pipes (32), respectively. The three air supply pipes (42) are connected to each other through the two connecting pipes (43). One end of the delivery pipe (44) is connected to one of the air supply pipes (42). The bottom of each air supply pipe (42) is fixedly connected to a group of distribution pipes (45). The distribution pipes (45) are fixedly passed through the top of the transmission box (31), and the outer wall of each group of distribution pipes (45) is connected to the inner wall of each group of replacement pipes (32) through a sealed bearing.

4. A defect detection device for health care products according to claim 3, characterized in that: The transmission unit (5) comprises three groups of worm gears (51), three transmission shafts (52) and a plurality of worms (53). The three groups of worm gears (51) are fixedly mounted on the outer walls of the three groups of displacement pipes (32), respectively. The two ends of the three transmission shafts (52) are rotatably connected to the left and right sides of the transmission box (31), respectively. Each transmission shaft (52) is provided with a plurality of worms (53), and each worm (53) is meshed with a corresponding worm gear (51).

5. A defect detection device for health care products according to claim 4, characterized in that: The execution unit (6) comprises a gearbox (61), a motor (62), a rotating shaft (63), three first bevel gears (64) and three second bevel gears (65); the gearbox (61) is fixedly arranged on the right side outside the transmission box (31); the motor (62) is fixedly arranged on the front side outside the gearbox (61); and the driving end of the motor (62) movably passes through the front side of the gearbox (61); one end of the rotating shaft (63) is rotatably connected to the rear side of the gearbox (61); and the other end of the rotating shaft (63) is fixedly connected to the driving end of the motor (62); the three first bevel gears (64) are all fixedly arranged on the rotating shaft (63); the three second bevel gears (65) are respectively fixedly connected to one end of the three transmission shafts (52), and each first bevel gear (64) is meshed with the corresponding second bevel gear (65).

6. A defect detection device for health care products according to claim 5, characterized in that: A drainage port (9) is provided at the bottom of each test tube trough (2), and the drainage port (9) is communicated with the test tube trough (2). A collecting box (10) is fixedly provided at the bottom of the test tube holder (1), a drainage pipe (11) is fixedly provided on the right side of the collecting box (10), and a sealing unit (7) for sealing the drainage port (9) at the bottom of the test tube trough (2) is fixedly provided inside the test tube holder (1).

7. A defect detection device for health care products according to claim 6, characterized in that: The sealing unit (7) comprises an electric telescopic rod (71), three movable plates (72), two connecting plates (73) and a group of sealing seats (74). An inner cavity is provided in the test tube holder (1). The electric telescopic rod (71) is fixedly arranged in the inner cavity. The three movable plates (72) are arranged in a front-to-back manner and are connected to each other via two connecting plates (73). The driving end of the electric telescopic rod (71) is fixedly connected to one of the movable plates (72). A group of sealing seats (74) is fixedly arranged on the top of each movable plate (72).

8. A defect detection device for health care products according to claim 7, characterized in that: A splicing unit (8) is also provided on the test tube holder (1) and the dynamic detection mechanism.

9. A defect detection device for health care products according to claim 8, characterized in that: The splicing unit (8) comprises two card slots (81), two card blocks (82) and a locking rod (83). The two card slots (81) are respectively fixedly arranged on the front and rear sides of the test tube holder (1), and each card slot (81) is provided with a socket. The two card blocks (82) are respectively fixedly arranged on the front and rear sides of the transmission box (31), and each card block (82) is provided with a positioning hole corresponding to the socket. The card slots (81) and the card blocks (82) are connected via the locking rod (83).

10. A defect detection device for health care products according to claim 7, characterized in that: A sealing gasket is also fixedly provided on the top of the sealing seat (74).

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