Pipettor detection device with high stability

Abstract

The utility model discloses a pipettor detection device with strong stability, which comprises a detection table and a mechanical arm arranged on one side of the top surface of the detection table, the output end of the mechanical arm is provided with a fixing assembly, the fixing assembly comprises a mounting rack, the bottom of the mounting rack is fixedly connected with a mounting disc, and the mounting disc is fixedly connected with a rotating shaft. A rotating disc is rotatably connected to the top of the mounting disc, movable clamping plates are symmetrically connected to the bottom surface of the mounting disc in an attached mode, a convex column is rotatably connected to one side of the top surface of the rotating disc, and a first electric push rod is mounted on one side of the convex column; wherein arc-shaped grooves are symmetrically formed in the rotating disc, straight grooves are symmetrically formed in the mounting disc, connecting columns are slidably connected to the interiors of the arc-shaped grooves and the straight grooves at the same time, and the bottom ends of the connecting columns are fixedly connected with the movable clamping plates; the device can quickly clamp any pipettor bodies of various specifications, so that the detection device can be conveniently compatible with the pipettor bodies of various specifications, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipette detection devices, in particular to a pipette detection device with strong stability. Background Art

[0002] Currently, pipette testing relies on manual operation (such as aspiration and discharge). When encountering complex samples or large-scale samples, the measurement and testing cannot keep up.

[0003] Domestic research on robotic detection equipment still has the problem of insufficient application. The existing automatic detection system for pipettes is not compatible with multiple brands, which is not conducive to the fixation of pipettes of various sizes. It cannot be popularized in the routine process of measurement and testing, or widely used by operators in various laboratories, and is relatively inconvenient to use.

[0004] A pipette detection device with strong stability is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the present utility model is to provide a highly stable pipette detection device to solve the problems raised in the above-mentioned background technology, namely, that the existing automatic pipette detection system is not compatible with multiple brands, is not conducive to the fixation of pipettes of various sizes, and cannot be popularized in the routine process of measurement and detection, or is generally used by operators in various laboratories, and is relatively inconvenient to use.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a highly stable pipette detection device, comprising a detection table, and a mechanical arm mounted on one side of the top surface of the detection table, a pipette body mounted on the output end of the mechanical arm, a weighing device mounted on the top surface of the detection table, a beaker placed on the top surface of the weighing device, and the pipette body including a pipette plunger polygonal cap;

[0007] The output end of the robotic arm is provided with a fixed assembly, which includes a mounting frame, a mounting plate fixedly connected to the bottom of the mounting frame, a rotating disk rotatably connected to the top of the mounting disk, a movable splint symmetrically connected to the bottom surface of the mounting disk, a boss rotatably connected to one side of the top surface of the rotating disk, and a first electric push rod installed between the boss and the inner wall of the mounting frame;

[0008] The pipette body passes through the middle of the mounting plate and the rotating plate, and the inner top surface of the mounting frame is provided with an analog component, which includes a second electric push rod and a servo motor. The output end of the servo motor is fixedly connected to a rotating shaft, and a clamping cap is installed at the bottom end of the rotating shaft. The clamping cap is clamped and connected with the polygonal cap of the pipette push rod, and an extension plate is installed on the outer side of the clamping cap;

[0009] The rotating disk is symmetrically provided with arc grooves, and the mounting disk is symmetrically provided with straight grooves. The arc grooves and the straight grooves are symmetrically connected with connecting columns in a sliding manner, and the bottom ends of the connecting columns are fixedly connected to the movable splint.

[0010] Preferably, a avoidance hole is opened in the middle of the mounting disk and the rotating disk, the top end of the connecting column is fixedly connected to a limit block, the limit block fits the surface of the rotating disk, the output end of the first electric push rod is fixedly connected to the boss, the other end of the first electric push rod is rotatably connected to the inner side of the mounting bracket, the pipette body passes through the avoidance hole, the mounting bracket is rotatably installed on the output end of the robotic arm, the second electric push rod and the servo motor are both fixed to the inner top surface of the mounting bracket, and the extension plate is threadedly fixed to the output end of the second electric push rod.

[0011] Preferably, a V-shaped groove is formed on a side of the movable splint close to the pipette body, and a friction pad is adhered to the V-shaped groove.

[0012] Preferably, the bottom end of the rotating shaft is fixedly connected to a connecting sleeve, through holes are opened on both sides of the connecting sleeve, the interior of the through holes is slidably connected to a sliding column, and the bottom ends of the two sliding columns are fixedly connected to the same connecting plate.

[0013] Preferably, the bottom end of the connecting plate is fixedly connected to a connecting shaft, the bottom end of the connecting shaft is threadedly fixed to a clamping cap, and a polygonal groove is provided on the inner side of the clamping cap.

[0014] Preferably, the outside of the snap-on cap is rotatably connected to a surrounding sleeve, and the outer side of the surrounding sleeve is fixedly connected to the end of the extension plate.

[0015] Preferably, a control panel is installed on one side of the top surface of the detection table.

[0016] Compared with the prior art, the beneficial effects of the present invention are: a highly stable pipette detection device that can quickly clamp pipette bodies of any variety of specifications, making it easier for the detection device to be compatible with pipette bodies of various specifications, thereby increasing the practicality of the device. The specific contents are as follows:

[0017] 1. By passing a single pipette body through the avoidance hole and allowing the pipette push rod polygonal cap to be clamped into the clamping cap, and then starting the first electric push rod, it pushes the rotating disk to rotate through the convex column, so that the connecting column slides inside the arc groove and the straight groove at the same time, thereby driving the movable clamping plate to move and clamp the pipette body. Finally, the device can quickly clamp pipette bodies of any variety of specifications, making this detection device compatible with pipette bodies of various specifications and increasing the practicality of the device.

[0018] 2. The servo motor drives the rotating shaft to rotate the connecting sleeve, which in turn drives the sliding column to rotate the snap-on cap, and then the pipette push rod polygonal cap rotates the designed number of circles, so that the pipette body has a range that can extract the designed amount of liquid. Then, the second electric push rod is started to make the extension plate drive the snap-on cap to descend and rise, completing the extraction of liquid from the beaker. After the liquid is extracted, the weighing device can feedback the actual amount of liquid extracted. Finally, the extraction function of the pipette body can be tested based on the changes in the weighing device and the designed liquid extraction amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front cross-section structure of the utility model;

[0020] Figure 2 for Figure 1 A in the middle is an enlarged structural diagram;

[0021] Figure 3 It is a schematic diagram of the installation structure of the installation disk and the rotating disk;

[0022] Figure 4 It is a schematic diagram of the explosion installation structure of the installation disk and the rotating disk;

[0023] Figure 5 for Figure 1 Enlarged structural diagram at point B in the middle.

[0024] In the figure: 1. Testing table; 101. Robotic arm; 102. Weighing device; 103. Beaker; 104. Pipette body; 105. Multi-sided cap of pipette push rod; 2. Fixing assembly; 201. Mounting frame; 202. Mounting plate; 203. Moving splint; 204. Rotating plate; 205. Boss; 206. Avoidance hole; 207. Arc groove; 208. Straight groove; 209. Connecting column; 210. Limit block; 211. First electric push rod; 3. Simulation assembly; 301. Second electric push rod; 302. Servo motor; 303. Rotating shaft; 304. Connecting sleeve; 305. Sliding column; 306. Snap-on cap; 307. Surrounding sleeve; 308. Extension plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the 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.

[0026] See also Figure 1 - Figure 5The utility model provides a technical solution: a highly stable pipette detection device, comprising a detection table 1, and a mechanical arm 101 mounted on one side of the top surface of the detection table 1, a pipette body 104 mounted on the output end of the mechanical arm 101, a weighing device 102 mounted on the top surface of the detection table 1, a beaker 103 placed on the top surface of the weighing device 102, and a pipette body 104 including a pipette push rod multi-sided cap 105;

[0027] The output end of the robotic arm 101 is provided with a fixed assembly 2, which includes a mounting frame 201. The bottom of the mounting frame 201 is fixedly connected to a mounting plate 202. The top of the mounting plate 202 is rotatably connected to a rotating plate 204. The bottom surface of the mounting plate 202 is symmetrically connected to a movable clamping plate 203. One side of the top surface of the rotating plate 204 is rotatably connected to a boss 205. A first electric push rod 211 is installed between the boss 205 and the inner wall of the mounting frame 201.

[0028] Among them, the pipette body 104 passes through the middle of the mounting disk 202 and the rotating disk 204, and the inner top surface of the mounting frame 201 is provided with an analog component 3, which includes a second electric push rod 301 and a servo motor 302. The output end of the servo motor 302 is fixedly connected to the rotating shaft 303, and the bottom end of the rotating shaft 303 is installed with a snap-on cap 306. The snap-on cap 306 is snap-connected with the pipette push rod polygonal cap 105, and an extension plate 308 is installed on the outside of the snap-on cap 306; wherein, arc grooves 207 are symmetrically opened on the rotating disk 204, and straight grooves 208 are symmetrically opened on the mounting disk 202. The arc grooves 207 and the straight grooves 208 are simultaneously slidably connected with connecting columns 209, and the bottom end of the connecting column 209 is fixedly connected to the movable splint 203.

[0029] A position-avoiding hole 206 is provided in the middle of the mounting plate 202 and the rotating plate 204. The top of the connecting column 209 is fixedly connected to the limit block 210. The limit block 210 is in contact with the surface of the rotating plate 204. The output end of the first electric push rod 211 is fixedly connected to the boss 205. The other end of the first electric push rod 211 is rotatably connected to the inner side of the mounting bracket 201. The pipette body 104 passes through the position-avoiding hole 206. The mounting bracket 201 is rotatably mounted on the output end of the robotic arm 101. The second electric push rod 301 and the servo motor 302 are both fixed to the mounting bracket. The inner top surface of the mounting bracket 201 and the extension plate 308 are threadedly fixed to the output end of the second electric push rod 301; the snap cap 306 and the extension plate 308 can be disassembled through the threaded structure, so that the snap cap 306 can be replaced. To cope with different pipette push rod polygonal caps 105, the top surface of the extension plate 308 is connected to the second electric push rod 301 through a pair of threaded blocks threadedly connected to each other. One threaded block is rotatably connected to the output end of the second electric push rod 301, and the other threaded block is fixedly connected to one side of the extension plate 308.

[0030] A V-shaped groove is formed on one side of the movable clamping plate 203 close to the pipette body 104 , and a friction pad is attached to the V-shaped groove. The friction pad and the V-shaped groove can increase the fixing strength of the pipette body 104 and prevent the pipette body 104 from shaking.

[0031] The bottom end of the rotating shaft 303 is fixedly connected to a connecting sleeve 304 . Through holes are provided on both sides of the connecting sleeve 304 . Sliding posts 305 are slidably connected inside the through holes. The bottom ends of the two sliding posts 305 are fixedly connected to the same connecting plate.

[0032] The bottom end of the connecting plate is fixedly connected to a connecting shaft, and the bottom end of the connecting shaft is threadedly fixed to the snap cap 306. A polygonal groove is provided on the inner side of the snap cap 306. The snap cap 306 has a variety of specifications. When dealing with the polygonal caps 105 of pipette push rods of different sizes, the snap cap 306 can be stably engaged with the polygonal cap 105 of the pipette push rod.

[0033] The outer portion of the snap-on cap 306 is rotatably connected to a surrounding sleeve 307 , and the outer side of the surrounding sleeve 307 is fixedly connected to the end of the extension plate 308 .

[0034] A control panel is installed on one side of the top surface of the detection table 1; the control panel can set the number of rotations of the servo motor 302 and the interval and period of the reciprocating extension and retraction of the second electric push rod 301, thereby realizing semi-automatic detection.

[0035] Working principle: Before using this highly stable pipette detection device, you need to check the overall condition of the device to ensure that it can work normally. Figure 1 - Figure 5 As shown, first, a single pipette body 104 is passed through the avoidance hole 206, and the pipette push rod polygonal cap 105 is clamped into the clamping cap 306. Then, the first electric push rod 211 is started, so that it pushes the rotating disk 204 to rotate through the protruding column 205, so that the connecting column 209 slides inside the arc groove 207 and the straight groove 208 at the same time, thereby driving the movable clamping plate 203 to move and clamp the pipette body 104. Finally, the device can quickly clamp pipette bodies 104 of any variety of specifications.

[0036] The mechanical arm 101 is then used to transfer the spatial position of the pipette body 104;

[0037] Then, by starting the servo motor 302, the rotating shaft 303 drives the connecting sleeve 304 to rotate, thereby causing the sliding column 305 to drive the clamping cap 306 to rotate, and then causing the pipette push rod polygonal cap 105 to rotate the designed number of circles, so that the pipette body 104 has a range that can extract the designed amount of liquid, and then starting the second electric push rod 301 so that the extension plate 308 drives the clamping cap 306 to descend and rise, thereby causing the pipette push rod polygonal cap 105 to descend and then rise, completing the extraction of liquid from the beaker 103. After the liquid is extracted, the weighing device 102 can feedback the actual amount of liquid extracted. Finally, according to the changes in the weighing device 102 and the designed amount of liquid to be taken, whether the extraction function of the pipette body 104 is good can be detected;

[0038] Then, the second electric push rod 301 is started again so that the liquid inside the pipette body 104 can be discharged into the beaker 103 again.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A highly stable pipette detection device, comprising a detection table (1), and a mechanical arm (101) mounted on one side of the top surface of the detection table (1), a pipette body (104) being mounted on the output end of the mechanical arm (101), a weighing device (102) being mounted on the top surface of the detection table (1), a beaker (103) being placed on the top surface of the weighing device (102), and the pipette body (104) comprising a pipette push rod multi-sided cap (105); It is characterized by: Also includes: The output end of the mechanical arm (101) is provided with a fixed component (2), the fixed component (2) includes a mounting frame (201), the bottom of the mounting frame (201) is fixedly connected to a mounting plate (202), the top of the mounting plate (202) is rotatably connected to a rotating plate (204), the bottom surface of the mounting plate (202) is symmetrically connected to a movable clamping plate (203), one side of the top surface of the rotating plate (204) is rotatably connected to a boss (205), and a first electric push rod (211) is installed between the boss (205) and the inner wall of the mounting frame (201); The pipette body (104) passes through the middle of the mounting plate (202) and the rotating plate (204); the inner top surface of the mounting frame (201) is provided with a simulation component (3); the simulation component (3) includes a second electric push rod (301) and a servo motor (302); the output end of the servo motor (302) is fixedly connected to a rotating shaft (303); the bottom end of the rotating shaft (303) is provided with a snap-on cap (306); the snap-on cap (306) is snap-connected with the pipette push rod polygonal cap (105); and an extension plate (308) is provided on the outer side of the snap-on cap (306); The rotating disk (204) is symmetrically provided with an arcuate groove (207), and the mounting disk (202) is symmetrically provided with a straight groove (208). The arcuate groove (207) and the straight groove (208) are slidably connected to the inside of the arcuate groove (207) and the straight groove (208) at the same time, and the bottom end of the connecting column (209) is fixedly connected to the movable splint (203).

2. A pipette detection device with strong stability according to claim 1, characterized in that: A position-avoiding hole (206) is provided in the middle of the mounting plate (202) and the rotating plate (204); the top end of the connecting column (209) is fixedly connected to a limit block (210); the limit block (210) is in contact with the surface of the rotating plate (204); the output end of the first electric push rod (211) is fixedly connected to the boss (205); the other end of the first electric push rod (211) is rotatably connected to the inner side of the mounting frame (201); the pipette body (104) passes through the position-avoiding hole (206); the mounting frame (201) is rotatably mounted on the output end of the robotic arm (101); the second electric push rod (301) and the servo motor (302) are both fixed to the inner top surface of the mounting frame (201); and the extension plate (308) is threadedly fixed to the output end of the second electric push rod (301).

3. A pipette detection device with strong stability according to claim 2, characterized in that: A V-shaped groove is provided on one side of the movable clamping plate (203) close to the pipette body (104), and a friction pad is adhered to the V-shaped groove.

4. A highly stable pipette detection device according to claim 1, characterized in that: The bottom end of the rotating shaft (303) is fixedly connected to a connecting sleeve (304), through holes are provided on both sides of the connecting sleeve (304), and sliding columns (305) are slidably connected inside the through holes. The bottom ends of the two sliding columns (305) are fixedly connected to the same connecting plate.

5. A highly stable pipette detection device according to claim 4, characterized in that: The bottom end of the connecting plate is fixedly connected to a connecting shaft, and the bottom end of the connecting shaft is threadedly fixed to a clamping cap (306), and a polygonal groove is provided on the inner side of the clamping cap (306).

6. A highly stable pipette detection device according to claim 5, characterized in that: The outside of the clamping cap (306) is rotatably connected to a surrounding sleeve (307), and the outside of the surrounding sleeve (307) is fixedly connected to the end of the extension plate (308).

7. A pipette detection device with strong stability according to claim 1, characterized in that: A control panel is installed on one side of the top surface of the detection table (1).

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