Sampling and testing device for biological experiments

Abstract

This utility model relates to the field of testing equipment, and more particularly to sampling and testing equipment for biological experiments, including a support plate; a reaction vessel and a detector are placed on the upper end of the support plate, and a stirring component is provided on the reaction vessel; a second motor is fixedly connected to the lower end of the support plate. This utility model, by setting a lifting mechanism, allows for adjustment of the height of the extraction tube. The engagement of a threaded post and nut facilitates the installation of the mounting block on the frame. Activating the lifting mechanism raises the piston, thus facilitating the extraction of liquid from the reaction vessel. Since the Y-shaped block is equipped with three sets of lifting mechanisms, activating the second motor to rotate the rotating rod allows for rapid movement of the next extraction tube to the extraction position, facilitating rapid extraction of the solution from the reaction vessel. The extracted liquid can then be moved to the detector for testing. A camera monitors the position of the frame in real time via machine vision, enabling the extraction tube to be quickly adjusted to the extraction position for rapid sample extraction.

Description

Technical Field

[0001] This utility model belongs to the field of testing equipment, specifically relating to sampling and testing equipment for biological experiments. Background Technology

[0002] In the field of modern biological experiments, biological experimental samples come from a wide range of sources, including human tissues, cell culture media, animal and plant body fluids, and environmental microorganisms. Their properties, components, and states are complex and variable, which places extremely high demands on sampling and testing equipment.

[0003] As biological experimental research deepens, the demand for the accuracy, efficiency, and automation of sample testing is increasing day by day. At present, traditional sampling and testing methods are difficult to meet the requirements of rapid and multi-station sample extraction, and are difficult to rapidly sample and test liquids at different depths in reaction vessels, which needs further improvement.

[0004] Therefore, a sampling and testing device for biological experiments is proposed, which can meet the requirements of rapid and multi-station sample extraction and can quickly sample and test liquids at different depths in reaction vessels. Utility Model Content

[0005] To overcome the limitations of existing sampling and testing methods in meeting the requirements for rapid and multi-station sample extraction, and the difficulty in rapidly sampling and testing liquids at different depths in reaction vessels, a sampling and testing device for biological experiments is proposed.

[0006] The technical solution of this utility model is as follows: a sampling and detection device for biological experiments, including a support plate; a reaction vessel and a detector are placed on the upper end of the support plate, a stirring component is provided on the reaction vessel, a second motor is fixedly connected to the lower end of the support plate, the upper end of the second motor passes through the support plate and is fixedly connected to a rotating rod, a Y-shaped block is fixedly connected to the upper end of the rotating rod, three evenly distributed first tanks are opened through the upper end of the Y-shaped block, a lifting mechanism is provided on the inner wall of the first tank, a moving mechanism for moving the lifting mechanism is provided on the upper end of the Y-shaped block, a bracket is installed on the lifting mechanism, a rotating mechanism is provided on the bracket, an installation block is installed on the rotating mechanism, a liquid extraction tube is fixedly connected through the upper end of the installation block, a lifting mechanism is provided on the installation block, a long rod is installed on the lifting mechanism, a piston is fixedly connected to the lower end of the long rod, and the piston is slidably disposed on the inner wall of the liquid extraction tube.

[0007] Preferably, the rotating mechanism includes a fifth motor, a frame, a threaded column, a camera, and a nut; the fifth motor is fixedly connected to the upper end of the bracket, the lower end of the output shaft of the fifth motor passes through the bracket and is fixedly connected to the frame, the threaded column is fixedly connected to the bottom surface of the inner wall of the frame, the camera is fixedly connected to the lower end of the frame, the nut is threadedly installed on the upper part of the side wall of the threaded column, a mounting block is placed on the bottom surface of the inner wall of the frame, a mounting hole is opened through the center of the upper end of the mounting block, the inner wall of the mounting hole fits with the side wall of the threaded column, the two sides of the mounting block fits with the two sides of the inner wall of the frame, and the lower end of the nut fits with the upper end of the mounting block.

[0008] Preferably, the lifting mechanism includes an electric cylinder and a lifting block. The lower end of the mounting block is fixedly connected to the electric cylinder, the output shaft of the electric cylinder passes through the upper end of the mounting block and is fixedly connected to the lifting block, and the lower end of the lifting block is fixedly connected to the upper end of the long rod.

[0009] Preferably, the stirring component includes a connecting block, a disc, a first motor, stirring columns, and stirring plates; the upper end of the reaction vessel is open, and two connecting blocks are fixedly connected to the upper part of the inner wall of the reaction vessel. The disc is fixedly connected to the end of the two connecting blocks near the center of the reaction vessel. The first motor is fixedly connected to the upper end of the disc. The lower end of the output shaft of the first motor passes through the disc and is fixedly connected to the first motor. Multiple stirring columns are fixedly connected to the side wall of the first motor.

[0010] Preferably, there is a gap between the side wall of the disc and the inner wall of the reaction vessel, and the lower end of the stirring column is in contact with the bottom surface of the inner wall of the reaction vessel.

[0011] Preferably, the moving mechanism includes a support, a lead screw, and a third motor; two supports are fixedly connected to the upper end of the Y-shaped block, and a third motor is rotatably mounted between the two supports. A lead screw is fixedly connected to the side wall of one of the supports, and the output shaft of the lead screw passes through one of the supports and is fixedly connected to one end of the third motor.

[0012] Preferably, the lifting mechanism includes a slide cylinder, a fourth motor, a screw, a first threaded cylinder, and a limiting groove; the slide cylinder is slidably provided on the inner wall of the first groove, the fourth motor is fixedly connected to the upper end of the slide cylinder, the screw is fixedly connected to the lower end of the output shaft of the fourth motor, the first threaded cylinder is installed on the side wall of the screw, the bracket is fixedly connected to the side wall of the first threaded cylinder, the limiting groove is opened through the side wall of the slide cylinder, the bracket is slidably provided on the inner wall of the limiting groove, an upper limiting plate is fixedly connected to the upper part of the side wall of the slide cylinder, a lower limiting plate is fixedly connected to the lower part of the side wall of the slide cylinder, the ends of the upper and lower limiting plates that are close to each other are respectively attached to the upper and lower ends of the Y-shaped block, the side end of the upper limiting plate is fixedly connected through the second threaded cylinder, and the side wall of the third motor and the second threaded cylinder are threadedly connected.

[0013] Preferably, the outer wall of the upper limit plate has a first notch, the outer wall of the lower limit plate has a second notch, and the bracket is slidably disposed on the inner wall of the first and second notches.

[0014] The beneficial effects of this utility model are as follows: By setting a moving mechanism, the position of the sliding cylinder can be moved and adjusted; by setting a lifting mechanism, the height of the liquid extraction tube can be adjusted; by the cooperation of the threaded column and nut, the mounting block can be easily installed on the frame; by opening the lifting mechanism, the piston can be lifted, thereby facilitating the extraction of liquid from the reaction tank; since the Y-shaped block is equipped with three sets of lifting mechanisms, after the second motor is turned to rotate the rotating rod, the next liquid extraction tube can be quickly moved to the extraction position, facilitating the rapid extraction of the solution from the reaction tank; then the extracted liquid can be moved to the detector for testing; the camera monitors the position of the frame in real time through machine vision, so that the liquid extraction tube can be quickly adjusted to the extraction position, solving the problem that the existing sampling and testing methods cannot meet the requirements of rapid and multi-station sample extraction, and it is difficult to quickly sample and test liquids at different depths in the reaction tank. Attached Figure Description

[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of the sampling and testing equipment for biological experiments according to this utility model.

[0016] Figure 2 The diagram shows a three-dimensional disassembled structure of the threaded column and nut of the sampling and testing device for biological experiments of this utility model.

[0017] Figure 3 The diagram shows a three-dimensional disassembled structure of the mounting block and electric cylinder of the biological experimental sampling and testing equipment of this utility model.

[0018] Figure 4 The diagram shown is a three-dimensional structural schematic of the lifting mechanism of the biological experimental sampling and testing equipment of this utility model.

[0019] Figure 5 The diagram shown is a three-dimensional structural schematic of the Y-shaped block of the biological experimental sampling and testing device of this utility model.

[0020] Figure 6 The diagram shown is a three-dimensional cross-sectional view of the reaction vessel of the biological experimental sampling and testing equipment of this utility model.

[0021] The labels in the attached diagram are as follows: 1. Support plate; 2. Reaction vessel; 21. Connecting block; 22. Disc; 23. First motor; 24. Stirring column; 25. Stirring plate; 3. Detector; 4. Second motor; 5. Rotating rod; 6. Y-shaped block; 61. Support; 62. Lead screw; 63. Third motor; 7. First tank; 8. Lifting mechanism; 81. Slide cylinder; 82. Fourth motor; 83. Screw; 84. First threaded cylinder; 85. Limiting groove; 86. Upper limit plate; 87. Lower limit plate; 88. Second threaded cylinder; 9. Bracket; 91. Fifth motor; 92. Frame; 93. Threaded column; 94. Camera; 95. Mounting block; 96. Mounting hole; 97. Liquid extraction pipe; 98. Nut; 99. Electric cylinder; 910. Lifting block; 911. Long rod; 912. Piston. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-6 This utility model provides an embodiment of a sampling and detection device for biological experiments, including a support plate 1; a reaction vessel 2 and a detector 3 are placed on the upper end of the support plate 1, the reaction vessel 2 is provided with a stirring component, a second motor 4 is fixedly connected to the lower end of the support plate 1, the upper end of the second motor 4 passes through the support plate 1 and is fixedly connected to a rotating rod 5, a Y-shaped block 6 is fixedly connected to the upper end of the rotating rod 5, three evenly distributed first tanks 7 are opened through the upper end of the Y-shaped block 6, a lifting mechanism 8 is provided on the inner wall of the first tank 7, a moving mechanism for moving the lifting mechanism 8 is provided on the upper end of the Y-shaped block 6, a bracket 9 is installed on the lifting mechanism 8, a rotating mechanism is provided on the bracket 9, an installation block 95 is installed on the rotating mechanism, a liquid extraction tube 97 is fixedly connected through the upper end of the installation block 95, a lifting mechanism is provided on the installation block 95, a long rod 911 is installed on the lifting mechanism, a piston 912 is fixedly connected to the lower end of the long rod 911, and the piston 912 is slidably disposed on the inner wall of the liquid extraction tube 97.

[0024] Please see Figure 1 and Figure 2 In this embodiment, the rotating mechanism includes a fifth motor 91, a frame 92, a threaded column 93, a camera 94, and a nut 98. The fifth motor 91 is fixedly connected to the upper end of the bracket 9. The lower end of the output shaft of the fifth motor 91 passes through the bracket 9 and is fixedly connected to the frame 92. The threaded column 93 is fixedly connected to the bottom surface of the inner wall of the frame 92. The camera 94 is fixedly connected to the lower end of the frame 92. The nut 98 is threadedly installed on the upper part of the side wall of the threaded column 93. An mounting block 95 is placed on the bottom surface of the inner wall of the frame 92. An mounting hole 96 is opened through the center of the upper end of the mounting block 95. The inner wall of the mounting hole 96 fits against the side wall of the threaded column 93. The two sides of the mounting block 95 fit against the two sides of the inner wall of the frame 92. The lower end of the nut 98 fits against the upper end of the mounting block 95.

[0025] Please see Figure 1 and Figure 3 In this embodiment, the lifting mechanism includes an electric cylinder 99 and a lifting block 910. The lower end of the mounting block 95 is fixedly connected to the electric cylinder 99. The output shaft of the electric cylinder 99 passes through the upper end of the mounting block 95 and is fixedly connected to the lifting block 910. The lower end of the lifting block 910 is fixedly connected to the upper end of the long rod 911.

[0026] Please see Figure 1 and Figure 6 In this embodiment, the stirring component includes a connecting block 21, a disc 22, a first motor 23, stirring columns 24, and a stirring plate 25. The upper end of the reaction vessel 2 is open, and two connecting blocks 21 are fixedly connected to the upper part of the inner wall of the reaction vessel 2. The disc 22 is fixedly connected to one end of the two connecting blocks 21 near the center of the reaction vessel 2. The first motor 23 is fixedly connected to the upper end of the disc 22. The lower end of the output shaft of the first motor 23 passes through the disc 22 and is fixedly connected to the first motor 23. Multiple stirring columns 24 are fixedly connected to the side wall of the first motor 23.

[0027] Please see Figure 1 and Figure 6 In this embodiment, there is a gap between the side wall of the disc 22 and the inner wall of the reaction vessel 2, and the lower end of the stirring column 24 is in contact with the bottom surface of the inner wall of the reaction vessel 2.

[0028] Please see Figure 1 and Figure 5 In this embodiment, the moving mechanism includes a support 61, a lead screw 62, and a third motor 63; two supports 61 are fixedly connected to the upper end of the Y-shaped block 6, and a third motor 63 is rotatably mounted between the two supports 61. A lead screw 62 is fixedly connected to the side wall of one of the supports 61, and the output shaft of the lead screw 62 passes through one of the supports 61 and is fixedly connected to one end of the third motor 63.

[0029] Please see Figure 1 and Figure 4 In this embodiment, the lifting mechanism 8 includes a slide cylinder 81, a fourth motor 82, a screw 83, a first threaded cylinder 84, and a limiting groove 85. The slide cylinder 81 is slidably provided on the inner wall of the first groove 7. The fourth motor 82 is fixedly connected to the upper end of the slide cylinder 81. The screw 83 is fixedly connected to the lower end of the output shaft of the fourth motor 82. The first threaded cylinder 84 is installed on the side wall of the screw 83. A bracket 9 is fixedly connected to the side wall of the first threaded cylinder 84. The limiting groove 85 is opened through the side wall of the slide cylinder 81. The bracket 9 is slidably provided on the inner wall of the limiting groove 85. An upper limit plate 86 is fixedly connected to the upper part of the side wall of the slide cylinder 81. A lower limit plate 87 is fixedly connected to the lower part of the side wall of the slide cylinder 81. The upper limit plate 86 and the lower limit plate 87 are close to each other and respectively attached to the upper and lower ends of the Y-shaped block 6. A second threaded cylinder 88 is fixedly connected through the side end of the upper limit plate 86. The side wall of the third motor 63 and the second threaded cylinder 88 are threadedly connected.

[0030] Please see Figure 1 and Figure 4 In this embodiment, the outer wall of the upper limit plate 86 is provided with a first notch, the outer wall of the lower limit plate 87 is provided with a second notch, and the bracket 9 is slidably disposed on the inner wall of the first and second notches.

[0031] Working principle: First, start the second motor 4 to drive the rotating rod 5 to rotate, which drives the Y-shaped block 6 to move circumferentially and adjust the position of the liquid extraction pipe 97 so that the liquid extraction pipe 97 is located above the gap between the side wall of the disc 22 and the inner wall of the reaction vessel 2.

[0032] Next, the third motor 63 is turned on to drive the second threaded cylinder 88 through the lead screw 62, which causes the slide cylinder 81 to move laterally on the Y-shaped block 6. In conjunction with the fourth motor 82 driving the screw 83, the first threaded cylinder 84 drives the bracket 9 to rise and fall, thus completing the three-dimensional spatial positioning of the liquid extraction tube 97.

[0033] When the fifth motor 91 drives the frame 92 to rotate, the position of the liquid extraction tube 97 can be quickly adjusted. After the liquid extraction tube 97 extends into the interior of the reaction tank 2, the electric cylinder 99 drives the lifting block 910 to move the long rod 911 upward, so that the piston 912 forms a negative pressure in the liquid extraction tube 97. Then, the lifting mechanism 8 is activated to move the liquid extraction tube 97 out of the reaction tank 2. The fifth motor 91 is activated to rotate the frame 92, so that the liquid extraction tube 97 moves directly above the detection port of the detector 3. Then, the electric cylinder 99 is activated to retract its output shaft into the cylinder body, so that the reaction liquid in the liquid extraction tube 97 can be placed into the detector 3. The detector 3 can be activated to detect the reaction liquid.

[0034] After the first sampling is completed, the second motor 4 drives the Y-shaped block 6 to rotate 120°, so that the adjacent first tank 7 reaches the working position. Repeat the above steps, and adjust the liquid extraction tube 97 to different depths through the lifting mechanism 8, so that liquid at different depths in the reaction tank 2 can be sampled.

[0035] When in use, turn on camera 94 for visual correction to reduce the positioning error of the suction tube 97.

[0036] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A sampling and testing device for biological experiments, comprising a support plate (1); characterized in that: A reaction vessel (2) and a detector (3) are placed on the upper end of the support plate (1). A stirring component is provided on the reaction vessel (2). A second motor (4) is fixedly connected to the lower end of the support plate (1). The upper end of the second motor (4) passes through the support plate (1) and is fixedly connected to a rotating rod (5). A Y-shaped block (6) is fixedly connected to the upper end of the rotating rod (5). Three evenly distributed first tanks (7) are opened through the upper end of the Y-shaped block (6). A lifting mechanism (8) is provided on the inner wall of the first tank (7). The upper part of the Y-shaped block (6) is connected to the upper part of the first tank (7). The end is provided with a moving mechanism for moving the lifting mechanism (8). A bracket (9) is installed on the lifting mechanism (8). A rotating mechanism is provided on the bracket (9). An installation block (95) is installed on the rotating mechanism. A liquid extraction pipe (97) is fixedly connected through the upper end of the installation block (95). A lifting mechanism is provided on the installation block (95). A long rod (911) is installed on the lifting mechanism. A piston (912) is fixedly connected to the lower end of the long rod (911). The piston (912) is slidably disposed on the inner wall of the liquid extraction pipe (97).

2. The sampling and testing equipment for biological experiments according to claim 1, characterized in that: The rotating mechanism includes a fifth motor (91), a frame (92), a threaded column (93), a camera (94), and a nut (98). The fifth motor (91) is fixed to the upper end of the bracket (9). The lower end of the output shaft of the fifth motor (91) passes through the bracket (9) and is fixed to the frame (92). The threaded column (93) is fixed to the bottom surface of the inner wall of the frame (92). The camera (94) is fixed to the lower end of the frame (92). The nut (98) is threaded on the upper part of the side wall of the threaded column (93). The mounting block (95) is placed on the bottom surface of the inner wall of the frame (92). The mounting block (95) has a mounting hole (96) through the center of the upper end. The inner wall of the mounting hole (96) fits against the side wall of the threaded column (93). The two sides of the mounting block (95) fit against the two sides of the inner wall of the frame (92). The lower end of the nut (98) fits against the upper end of the mounting block (95).

3. The sampling and testing equipment for biological experiments according to claim 2, characterized in that: The lifting mechanism includes an electric cylinder (99) and a lifting block (910). The lower end of the mounting block (95) is fixedly connected to the electric cylinder (99). The output shaft of the electric cylinder (99) passes through the upper end of the mounting block (95) and is fixedly connected to the lifting block (910). The lower end of the lifting block (910) is fixedly connected to the upper end of the long rod (911).

4. The sampling and testing equipment for biological experiments according to claim 1, characterized in that: The stirring components include a connecting block (21), a disc (22), a first motor (23), stirring columns (24), and a stirring plate (25). The upper end of the reaction vessel (2) is open. Two connecting blocks (21) are fixed to the upper part of the inner wall of the reaction vessel (2). The disc (22) is fixed to the end of the two connecting blocks (21) near the center of the reaction vessel (2). The first motor (23) is fixed to the upper end of the disc (22). The lower end of the output shaft of the first motor (23) passes through the disc (22) and is fixed to the first motor (23). Multiple stirring columns (24) are fixed to the side wall of the first motor (23).

5. The sampling and testing equipment for biological experiments according to claim 4, characterized in that: There is a gap between the side wall of the disc (22) and the inner wall of the reaction vessel (2), and the lower end of the stirring column (24) is in contact with the bottom surface of the inner wall of the reaction vessel (2).

6. The sampling and testing equipment for biological experiments according to claim 1, characterized in that: The moving mechanism includes a support (61), a lead screw (62), and a third motor (63); the upper end of the Y-shaped block (6) is fixedly connected to two supports (61), and the third motor (63) is rotatably mounted between the two supports (61). The lead screw (62) is fixedly connected to the side wall of one of the supports (61), and the output shaft of the lead screw (62) passes through one of the supports (61) and is fixedly connected to one end of the third motor (63).

7. The sampling and testing equipment for biological experiments according to claim 6, characterized in that: The lifting mechanism (8) includes a slide cylinder (81), a fourth motor (82), a screw (83), a first threaded cylinder (84), and a limiting groove (85); the slide cylinder (81) is slidably provided on the inner wall of the first groove (7), the fourth motor (82) is fixedly connected to the upper end of the slide cylinder (81), the screw (83) is fixedly connected to the lower end of the output shaft of the fourth motor (82), the first threaded cylinder (84) is installed on the side wall of the screw (83), the bracket (9) is fixedly connected to the side wall of the first threaded cylinder (84), and the side wall of the slide cylinder (81) is through. A limiting groove (85) is provided, and a bracket (9) is slidably disposed on the inner wall of the limiting groove (85). An upper limiting plate (86) is fixedly connected to the upper side wall of the slide cylinder (81), and a lower limiting plate (87) is fixedly connected to the lower side wall of the slide cylinder (81). The upper and lower limiting plates (86) are close to each other and respectively attached to the upper and lower ends of the Y-shaped block (6). A second threaded cylinder (88) is fixedly connected through the side end of the upper limiting plate (86). The side wall of the third motor (63) and the second threaded cylinder (88) are threadedly connected.

8. The sampling and testing equipment for biological experiments according to claim 7, characterized in that: The outer wall of the upper limit plate (86) has a first notch, and the outer wall of the lower limit plate (87) has a second notch. The bracket (9) is slidably disposed on the inner wall of the first and second notches.

Images