Rapid positioning structure for liquid discharge detection of pipettor

Abstract

The utility model discloses a quick positioning structure for pipettor detection and drainage, which is characterized in that an electric cylinder I is fixedly mounted in the middle of the top of a top plate, the extension end of the electric cylinder I is positioned below the top plate, the bottom of the extension end of the electric cylinder I is fixedly connected with a connecting frame, and the two sides of the bottom of the connecting frame are jointly and movably connected with a rotating plate; squeezing plates are fixedly connected to the two sides of the bottom face of the front end of the rotating plate, the middles of the sides, close to the central axis of the rotating plate, of the squeezing plates are inclined planes, the inclined plane sides of the squeezing plates gradually extend towards the middle of the rotating plate from top to bottom, a motor is fixedly installed in the middle of the first electric cylinder, and an output shaft of the motor faces downwards. And the bottom of an output shaft of the motor is fixedly connected with the rear part of the top surface of the rotating plate, and the motor drives the rotating plate to rotate, so that the shroud ring can be positioned back and forth above the conveying belt and the top plate, and the suction heads of the pipettors can be quickly put into the collecting box and recycled.

Description

Technical Field

[0001] This utility model relates to the field of pipette detection technology, specifically to a quick positioning structure for pipette detection and dispensing. Background Technology

[0002] A pipette is a precision laboratory tool used to accurately transfer and dispense minute amounts of liquid. It combines mechanical manipulation with liquid handling technology to ensure precise and efficient liquid sample processing in fields such as scientific research, medicine, and biotechnology. Users can easily perform rapid aspiration, dispensing, and mixing of liquids of varying volumes, making it an indispensable piece of equipment in scientific experiments.

[0003] In the prior art, the discharge function of pipettes is usually tested manually. After the pipette is tested, the pipette tip usually needs to be disassembled. When testing multiple pipettes in batches, it is troublesome to disassemble the pipette tip one by one. Therefore, a quick positioning structure for testing the discharge of pipettes is proposed to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is as follows: When performing batch testing on multiple pipettes, it is quite troublesome to disassemble the pipette tips one by one.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A quick positioning structure for detecting liquid discharge using a pipette includes a delivery mechanism, and a positioning mechanism is provided on one side of the delivery mechanism;

[0007] The positioning mechanism includes a support frame, a collection box is movably installed on the inner rear side of the support frame, and a top plate is fixedly installed on the top of the support frame.

[0008] Among them, an electric cylinder is fixedly installed in the middle of the top of the top plate, the extension end of the electric cylinder is located below the top plate, and a connecting frame is fixedly connected to the bottom of the extension end of the electric cylinder. A rotating plate is movably connected to both sides of the bottom of the connecting frame.

[0009] Among them, the front bottom surface of the rotating plate is fixedly connected to both sides of the extrusion plate. The middle part of the extrusion plate is set as an inclined surface on the side close to the central axis of the rotating plate, and the inclined surface of the extrusion plate gradually extends from top to bottom toward the middle of the rotating plate.

[0010] The electric cylinder is fixedly mounted with a motor in the middle, the output shaft of the motor faces downward, and the bottom of the output shaft of the motor is fixedly connected to the rear of the top surface of the rotating plate.

[0011] The bottom surface of the rotating plate is also fixedly installed with an electric cylinder 2, and the bottom of the extension end of the electric cylinder 2 is fixedly installed with a push plate.

[0012] As a further embodiment of this utility model: an electric slide rail is fixedly installed in the middle of the bottom surface of the rotating plate. The electric slide rail is aligned with the length direction of the extrusion plate, and an electric slider is slidably connected to the inner wall of the electric slide rail. An extension rod is fixedly installed on the front of the electric slider, and a hoop is fixedly installed at the bottom of the extension rod.

[0013] As a further embodiment of this utility model: both sides of the outer wall of the hoop are slidably connected to extrusion rods, and the two extrusion rods are located at the ends away from the hoop and are slidably connected along the surfaces of the two extrusion plates respectively.

[0014] As a further embodiment of this utility model: one end of each of the two extrusion rods extends into the hoop and is fixedly connected to a clamping block, the outer wall of the clamping block is slidably connected to the inner wall of the hoop, and a gasket is fixedly connected to the side of the clamping block away from the extrusion rod.

[0015] As a further embodiment of this utility model: a spring is also sleeved on the outer side of one end of the extrusion rod located inside the hoop, one side of the spring is fixedly connected to the inner wall of the hoop, and the other side of the spring is fixedly installed to the clamping block.

[0016] As a further embodiment of this utility model: the conveying mechanism includes a conveyor belt, the surface of which is provided with a plurality of connecting holes, and each of the connecting holes is arranged at equal intervals along the length direction of the conveyor belt, and the entire conveyor belt is located directly below the hoop.

[0017] As a further embodiment of this utility model: a storage rack is movably installed on the top of the conveyor belt, and a plurality of storage slots are opened on the top surface of the storage rack. Each of the storage slots is arranged equidistantly along the length direction of the storage rack. Insert shafts are fixedly installed on both sides of the bottom surface of the storage rack. The lower end of the insert shaft is connected through a connecting hole, and a nut is threaded onto the outer surface of the insert shaft.

[0018] The beneficial effects of this utility model are:

[0019] (1) This utility model uses a clamp to hold and fix the drainer after testing. The clamp is installed below the rotating plate and the rotating plate is driven to rotate by a motor. Thus, the clamp can be positioned back and forth above the conveyor belt and above the top plate, so that the pipette tip can be quickly put into the collection box and recycled.

[0020] (2) The electric slider connected to the hoop can slide down along the electric slide rail, so that the squeezing rods on both sides of the hoop are gradually pushed inward by the squeezing plates on both sides, so that the clamping block inside the hoop is pushed out, and the clamping block clamps and fixes the pipette on both sides. The extension length of the clamping block can be adjusted according to the moving distance of the electric slider, so as to facilitate clamping and fixing pipettes of different diameters. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the positioning mechanism in this utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of the hoop ring in this utility model;

[0025] Figure 4 This is a schematic diagram of the overall structure of the rotating plate in this utility model;

[0026] Figure 5 This is a top view of the storage rack structure in this utility model.

[0027] In the diagram: 1. Conveying mechanism; 101. Conveyor belt; 102. Connecting hole; 103. Storage rack; 104. Storage trough; 105. Insert shaft; 106. Nut; 2. Positioning mechanism; 201. Support frame; 202. Collection box; 203. Top plate; 204. Electric cylinder one; 205. Connecting frame; 206. Motor; 207. Rotating plate; 208. Electric slide rail; 209. Electric slider; 210. Extension rod; 211. Hoop; 212. Extrusion plate; 213. Extrusion rod; 214. Clamping block; 215. Spring; 216. Washer; 217. Electric cylinder two; 218. Push plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figure 1-5 As shown, a rapid positioning structure for pipette discharge detection includes a conveying mechanism 1, with a positioning mechanism 2 disposed on one side of the conveying mechanism 1; the positioning mechanism 2 includes a support frame 201, a collection box 202 movably mounted on the inner rear side of the support frame 201, and a top plate 203 fixedly mounted on the top of the support frame 201; wherein, an electric cylinder 204 is fixedly mounted in the middle of the top of the top plate 203, the extension end of the electric cylinder 204 is located below the top plate 203, and a connecting frame 205 is fixedly connected to the bottom of the extension end of the electric cylinder 204; rotating plates 207 are movably connected to both sides of the bottom of the connecting frame 205, such as... Figure 2As shown, an annular slide rail is provided on the top surface of the rotating plate 207, and the connecting frame 205 extends into the annular slide rail and supports the rotating plate 207.

[0030] Among them, pressing plates 212 are fixedly connected to both sides of the bottom front end of the rotating plate 207. The pressing plate 212 is set with an inclined surface in the middle of the side near the central axis of the rotating plate 207, and the inclined surface of the pressing plate 212 gradually extends from top to bottom towards the middle of the rotating plate 207. Among them, a motor 206 is fixedly installed in the middle of the electric cylinder 204. The output shaft of the motor 206 faces downward, and the bottom of the output shaft of the motor 206 is fixedly connected to the rear of the top surface of the rotating plate 207. Among them, an electric cylinder 217 is also fixedly installed on the bottom surface of the rotating plate 207. A push plate 218 is fixedly installed at the bottom of the extension end of the electric cylinder 217. Figure 2 As shown, when the hoop 211 descends, the inclined surface at the lower end of the extrusion plate 212 pushes the extrusion rod 213 inward, and the end of the extrusion rod 213 that contacts the extrusion plate 212 is arc-shaped.

[0031] An electric slide rail 208 is fixedly installed in the middle of the bottom surface of the rotating plate 207. The electric slide rail 208 is aligned with the length direction of the extrusion plate 212, and an electric slider 209 is slidably connected to the inner wall of the electric slide rail 208. An extension rod 210 is fixedly installed on the front of the electric slider 209, and a hoop 211 is fixedly installed at the bottom of the extension rod 210. Extrusion rods 213 are slidably connected to both sides of the outer wall of the hoop 211. The ends of the two extrusion rods 213 located away from the hoop 211 are slidably connected along the surfaces of the two extrusion plates 212, and one end of the two extrusion rods 213 extends into the hoop 211 and is fixedly connected to a clamping block 214. The outer wall of the clamping block 214 is slidably connected to the inner wall of the hoop 211, and a gasket 216 is fixedly connected to the side of the clamping block 214 located away from the extrusion rods 213. Figure 3 As shown, the gasket 216 is made of rubber to prevent the clamping block 214 from damaging the surface of the pipette;

[0032] A spring 215 is fitted on the outer side of one end of the compression rod 213 located inside the hoop 211. One side of the spring 215 is fixedly connected to the inner wall of the hoop 211, and the other side of the spring 215 is fixedly installed to the clamping block 214. Figure 3 As shown, the spring 215 pulls the clamping block 214 outward from the hoop 211;

[0033] The conveying mechanism 1 includes a conveyor belt 101. Several connecting holes 102 are formed on the surface of the conveyor belt 101, and these connecting holes 102 are equidistantly arranged along the length of the conveyor belt 101. The conveyor belt 101 is located directly below the hoop 211. A storage rack 103 is movably mounted on the top of the conveyor belt 101. Several storage slots 104 are formed on the top surface of the storage rack 103, and these storage slots 104 are equidistantly arranged along the length of the storage rack 103. Insert shafts 105 are fixedly mounted on both sides of the bottom surface of the storage rack 103. The lower end of the insert shaft 105 is connected through the connecting holes 102, and a nut 106 is threaded onto the outer surface of the insert shaft 105. Figure 1 , Figure 2 , Figure 4 As shown, when the rotating plate 207 rotates 180 degrees, the hoop 211 can switch back and forth above the conveyor belt 101 and the storage rack 103.

[0034] The working principle of this utility model:

[0035] The conveyor belt 101 is installed inside the synchronous belt linear slide module. When the conveyor belt 101 moves, it drives the storage rack 103 to move in a straight line, thereby moving the tested pipette to below the clamp ring 211. Then, the electric cylinder 204 drives the connecting frame 205 to descend through its extension end. The clamp ring 211 is fitted onto the outside of the pipette. Then, the electric slider 209 moves down along the inner side of the electric slide rail 208, and the end of the squeezing rod 213 moves to the inclined surface of the squeezing plate 212, thereby pushing the squeezing rod 213 towards the inner side of the clamp ring 211. The clamping block 214 approaches the outside of the pipette. The pipette is then clamped, and then the first electric cylinder 204 retracts, causing the clamp 211 to lift the pipette and separate it from the storage tank 104. The output shaft of the motor 206 rotates 180 degrees, thereby aligning the clamp 211 with the collection box 202. At this time, the extension end of the second electric cylinder 217 extends and pushes the eject button on the top of the pipette through the push plate 218, so that the pipette tip falls off and into the collection box 202. After the above operation, the clamp can reinstall the pipette into the storage tank 104. After the conveyor belt 101 moves, it clamps another pipette.

[0036] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A rapid positioning structure for detecting liquid discharge of a pipette, comprising a conveying mechanism (1), and a positioning mechanism (2) arranged on one side of the conveying mechanism (1); characterized in that The positioning mechanism (2) comprises a support frame (201), a collection box (202) movably mounted at the inner side of the rear of the support frame (201), and a top plate (203) fixedly mounted on the top of the support frame (201); Wherein, the top plate (203) is fixedly installed with an electric cylinder one (204) at the top middle, the extension end of the electric cylinder one (204) is below the top plate (203), and the extension end bottom of the electric cylinder one (204) is fixedly connected with a connecting frame (205), and the bottom of the connecting frame (205) is movably connected with a rotating plate (207) on both sides; Wherein, the front end bottom surface of the rotating plate (207) is fixedly connected with an extrusion plate (212) on both sides, and the extrusion plate (212) is arranged as an inclined surface at the middle of the side close to the central axis of the rotating plate (207), and the inclined surface side of the extrusion plate (212) gradually extends towards the middle of the rotating plate (207) from top to bottom; Wherein, the middle of the electric cylinder one (204) is fixedly installed with a motor (206), the output shaft of the motor (206) is downward, and the output shaft bottom of the motor (206) is fixedly connected with the top surface rear of the rotating plate (207); Wherein, the bottom surface of the rotating plate (207) is also fixedly installed with an electric cylinder two (217), and the extension end bottom of the electric cylinder two (217) is fixedly installed with a push plate (218).

2. The rapid positioning structure for detecting and draining liquid of a pipette according to claim 1, wherein The bottom surface of the rotating plate (207) is also fixedly installed with an electric sliding rail (208), the length direction of the electric sliding rail (208) is consistent with that of the extrusion plate (212), the inner wall of the electric sliding rail (208) is matched and slidably connected with an electric sliding block (209), the front surface of the electric sliding block (209) is fixedly installed with an extension rod (210), and the bottom of the extension rod (210) is also fixedly installed with a hoop (211).

3. The rapid positioning structure for detecting liquid discharge of a pipette according to claim 2, wherein The outer wall of the hoop (211) is slidably connected with an extrusion rod (213) on both sides, and the two extrusion rods (213) are slidably connected with the surfaces of the two extrusion plates (212) at the ends away from the hoop (211).

4. The rapid positioning structure for detecting and discharging liquid of a pipette according to claim 3, wherein The ends of the two extrusion rods (213) extend into the interior of the hoop (211) and are fixedly connected with a clamping block (214), the outer wall of the clamping block (214) is slidably connected with the inner wall of the hoop (211), and the side of the clamping block (214) away from the extrusion rod (213) is fixedly connected with a gasket (216).

5. The rapid positioning structure for detecting the liquid discharge of the pipette according to claim 4, wherein The outer side of the end of the extrusion rod (213) inside the hoop (211) is also sleeved with a spring (215), one side of the spring (215) is fixedly connected with the inner wall of the hoop (211), and the other side of the spring (215) is fixedly installed with the clamping block (214).

6. The rapid positioning structure for detecting and draining liquid of a pipette according to claim 1, wherein The conveying mechanism (1) comprises a conveying belt (101), the surface of the conveying belt (101) is provided with a plurality of connecting holes (102), and the connecting holes (102) are equidistantly arranged along the length direction of the conveying belt (101), and the conveying belt (101) is located below the hoop (211) as a whole.

7. The rapid positioning structure for detecting the liquid discharge of the pipette according to claim 6, wherein The top of the conveying belt (101) is movably provided with a storage rack (103), the top surface of the storage rack (103) is provided with a plurality of storage grooves (104), and the storage grooves (104) are equidistantly arranged along the length direction of the storage rack (103); the bottom surface of the storage rack (103) is fixedly provided with plug shafts (105) on both sides, the lower ends of the plug shafts (105) are connected with the connecting holes (102) in a penetrating mode, and the outer surfaces of the plug shafts (105) are screw-connected with nuts (106).

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