Spacing-adjustable multi-channel pipetting mechanism for sample detection

Abstract

The utility model discloses an interval-adjustable multichannel pipetting mechanism for sample detection, and relates to the technical field of pipetting mechanisms. The device comprises a supporting assembly, the supporting assembly comprises a bottom plate, and two symmetrical clamping grooves are formed in the bottom plate; the distance adjusting assembly comprises a first vertical plate installed at the upper end of the bottom plate, two sets of inclined grooves are formed in the first vertical plate, a first connecting rod is installed at the inner top end of any inclined groove, a connecting ring is installed at the end, away from the first vertical plate, of any first connecting rod, and a transverse rod is installed in the connecting ring; a pipette is mounted at one end, far away from the first vertical plate, of any connecting ring; according to the multi-channel pipetting mechanism with the adjustable spacing for sample detection, the spacing among the plurality of pipettes can be quickly adjusted through the arranged spacing adjusting assembly, and during use, the multi-channel pipetting mechanism can be adjusted and fixed without disassembly and assembly of screws.

Description

Technical Field

[0001] The utility model relates to the technical field of pipetting mechanisms, in particular to a multi-channel pipetting mechanism with adjustable spacing for sample detection. Background Art

[0002] Pipetting devices are widely used in biochemical research laboratories, hospitals, and pharmaceutical companies, and can be used for sample pretreatment, sample purification and amplification, sample dilution and concentration, sample preparation and other sample processing operations. Existing pipetting devices generally include single-channel pipetting devices and multi-channel pipetting devices.

[0003] Publication No. CN 220194895 U discloses a multi-channel pipetting device with adjustable spacing. The pipetting device includes a workbench, a pipettor, a liquid transfer pump, and a displacement mechanism. The liquid transfer pump and the displacement mechanism are both installed on the workbench. The liquid transfer pump is communicated with the pipettor. The displacement mechanism is used to drive the pipettor to move. The pipettor includes a housing, a plurality of pipetting tubes, a limiting slide bar, and a positioning member. The limiting slide bar is horizontally arranged in the housing. The upper ends of the pipetting tubes are installed in the housing. The lower ends of the pipetting tubes extend to the lower side of the housing and are connected with pipette tips. Limiting sliders are fixed on the pipetting tubes. The utility model is convenient for adjusting the spacing between the pipetting tubes and has a wide range of applications. And it can realize the automatic control of the pipettor, thereby assisting the staff to achieve a large number of pipetting operations and reducing the workload of the staff.

[0004] When the above device is used, it is necessary to manually adjust the spacing between multiple pipetting tubes, and the housing needs to be disassembled and assembled before and after the adjustment. And then it needs to be disassembled and fixed with bolts, which is extremely troublesome. At the same time, the bolts will have high wear after long-term use, and even serious rust will occur after long-term contact with water molecules in the air, resulting in inability to disassemble and assemble later.

[0005] Therefore, a new multi-channel pipetting mechanism with adjustable spacing for sample detection is proposed to solve the above problems. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a multi-channel pipetting mechanism with adjustable spacing for sample detection to solve the technical problems raised in the background art.

[0007] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0008] The utility model is a multi-channel pipetting mechanism with adjustable spacing for sample detection, including a support assembly. The support assembly includes a bottom plate, and two symmetric card slots are opened on the bottom plate.

[0009] Distance adjustment component, the distance adjustment component includes a first vertical plate installed at the upper end of the bottom plate, two inclined slots are opened on the first vertical plate, a first connecting rod is installed at the inner top end of any one of the inclined slots, and one end of any one of the first connecting rods away from the first vertical plate is installed with a connecting ring, a cross bar is installed inside the connecting ring, and a pipette is installed at one end of any one of the connecting rings away from the first vertical plate. The downward opening directions of the two inclined slots are both relatively far away from each other. Two clamping blocks are installed at one end of the first vertical plate close to the bottom plate, and any one of the clamping blocks is engaged with the corresponding clamping slot;

[0010] Driving component, the driving component includes a second vertical plate installed at the upper end of the bottom plate.

[0011] Preferably, two symmetrically arranged mounting posts are installed at one end of the bottom plate close to the first vertical plate, and opposite ends of the two mounting posts are respectively connected to both ends of the cross bar.

[0012] Preferably, two symmetrically arranged sliding slots are opened at one end of the bottom plate close to the first vertical plate. One end of any one of the mounting posts close to the bottom plate is installed with a sliding block, and any one of the sliding blocks is connected to the corresponding sliding slot.

[0013] Preferably, a mounting plate is installed at one end of the second vertical plate close to the first vertical plate. A lead screw is installed at one end of the mounting plate close to the bottom plate. A moving block is installed on the lead screw. One end of the moving block close to the first vertical plate is installed with a second connecting rod. The other end of the second connecting rod away from the second vertical plate is connected to one end of the first vertical plate close to the second vertical plate. A motor is installed at one end of the mounting plate away from the bottom plate, and one end of the motor close to the bottom plate is connected to the end of the lead screw away from the bottom plate.

[0014] Preferably, a bearing is installed at one end of the lead screw close to the bottom plate, and a fixing plate is installed at the end of the bearing away from the lead screw. The end of the fixing plate away from the first vertical plate is connected to one end of the second vertical plate close to the first vertical plate.

[0015] Preferably, a second threaded hole is opened at one end of the second connecting rod close to the first vertical plate. A first threaded hole is installed on the first vertical plate. A bolt is installed at one end of the first vertical plate away from the second vertical plate. The bolt is engaged with the first threaded hole and the second threaded hole.

[0016] Preferably, a limiting slot is opened on the second vertical plate, a limiting rod is slidably installed in the limiting slot, and the other end of the limiting rod is connected to the moving block.

[0017] Compared with the prior art, the advantages of the present utility model are:

[0018] The adjustable-spacing multi-channel pipetting mechanism for sample detection can quickly adjust the spacing between multiple pipettes through the provided distance-adjusting component, and it does not require the disassembly and assembly of screws for adjustment and fixation during use. The operation of this utility model is extremely simple. At the same time, the provided limit rod can effectively prevent the moving block from rotating along with the lead screw, increasing the stability during lifting.

[0019] Of course, it is not necessary for any product implementing this utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of this utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of this utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 Structural diagram of the installation form of this utility model;

[0022] Figure 2 Structural diagram of the distance-adjusting component of this utility model;

[0023] Figure 3 Structural diagram of the driving component of this utility model;

[0024] Figure 4 Structural diagram of the bottom plate of this utility model;

[0025] Figure 5 Structural diagram of the mounting post of this utility model.

[0026] In the drawings, the list of components represented by each reference numeral is as follows:

[0027] 100, distance-adjusting component; 110, first vertical plate; 120, inclined groove; 130, first connecting rod; 140, connecting ring; 150, cross bar; 160, pipette; 170, clamping block; 180, first threaded hole; 190, bolt; 200, driving component; 210, second vertical plate; 211, limiting groove; 212, limit rod; 220, motor; 230, mounting plate; 240, lead screw; 250, moving block; 260, second connecting rod; 270, second threaded hole; 280, bearing; 290, fixing plate; 300, support component; 310, bottom plate; 311, card slot; 312, sliding groove; 320, mounting post; 321, slider. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0029] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "length", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present invention.

[0030] In order to better understand the purpose, structure, and function of the present invention, the adjustable-spacing multi-channel pipetting mechanism for sample detection of the present invention will be further described in detail below with reference to the drawings.

[0031] Please refer to Figures 1-5 As shown, this embodiment is an adjustable-spacing multi-channel pipetting mechanism for sample detection, including a support assembly 300. The support assembly 300 includes a bottom plate 310, and two symmetric card slots 311 are opened on the bottom plate 310; a distance-adjusting assembly 100. The distance-adjusting assembly 100 includes a first vertical plate 110 installed at the upper end of the bottom plate 310. Two groups of inclined slots 120 are opened on the first vertical plate 110. At the inner top end of any one of the inclined slots 120, a first connecting rod 130 is installed. At the end of any one of the first connecting rods 130 away from the first vertical plate 110, a connecting ring 140 is installed. A cross bar 150 is installed inside the connecting ring 140. At the end of any one of the connecting rings 140 away from the first vertical plate 110, a pipette 160 is installed. The downward opening directions of the two groups of inclined slots 120 are both relatively far away from each other. At the end of the first vertical plate 110 close to the bottom plate 310, two clamping blocks 170 are installed. Any one of the clamping blocks 170 is engaged with the corresponding card slot 311; a driving assembly 200. The driving assembly 200 includes a second vertical plate 210 installed at the upper end of the bottom plate 310.

[0032] At the end of the bottom plate 310 close to the first vertical plate 110, two symmetric mounting posts 320 are installed. At the opposite ends of the two mounting posts 320, both are connected to the two ends of the cross bar 150. This design can firmly fix the mounting posts 320 and facilitate the connecting ring 140 to drive the pipette 160 to move.

[0033] One end of the bottom plate 310 close to the first vertical plate 110 is provided with two symmetric sliding grooves 312. One end of any installation column 320 close to the bottom plate 310 is installed with a slider 321, and any slider 321 is connected to the corresponding sliding groove 312. This design can drive the connecting rod to fall off the first vertical plate 110 through the installation column 320, effectively preventing troubles during the replacement of the first vertical plate 110.

[0034] One end of the second vertical plate 210 close to the first vertical plate 110 is installed with a mounting plate 230. One end of the mounting plate 230 close to the bottom plate 310 is installed with a lead screw 240. A moving block 250 is installed on the lead screw 240. One end of the moving block 250 close to the first vertical plate 110 is installed with a second connecting rod 260. The end of the second connecting rod 260 far from the second vertical plate 210 is connected to one end of the first vertical plate 110 close to the second vertical plate 210. One end of the mounting plate 230 far from the bottom plate 310 is installed with a motor 220. One end of the motor 220 close to the bottom plate 310 is connected to the end of the lead screw 240 far from the bottom plate 310. This design can drive the lead screw 240 through the motor 220. The lead screw 240 drives the moving block 250 to move upward. The moving block 250 then drives the first vertical plate 110. When the first vertical plate 110 moves upward, it will push the first connecting rod 130 installed on the inclined groove 120 along the track of the inclined groove 120 to both ends, so as to quickly adjust the distance between the pipettes 160, and the motor 220 will also produce a locking effect on the first vertical plate 110 when it stops rotating.

[0035] One end of the lead screw 240 close to the bottom plate 310 is installed with a bearing 280. One end of the bearing 280 far from the lead screw 240 is installed with a fixing plate 290. One end of the fixing plate 290 far from the first vertical plate 110 is connected to one end of the second vertical plate 210 close to the first vertical plate 110. The designed bearing 280 can effectively reduce the friction generated when the lead screw 240 rotates, reducing the wear of the device.

[0036] One end of the second connecting rod 260 close to the first vertical plate 110 is provided with a second threaded hole 270. A first threaded hole 180 is installed on the first vertical plate 110. One end of the first vertical plate 110 far from the second vertical plate 210 is installed with a bolt 190. The bolt 190 meshes with the first threaded hole 180 and the second threaded hole 270. This design can stably fix the first vertical plate 110 on the connecting rod through the bolt 190, the first threaded hole 180 and the second threaded hole 270, facilitating the lead screw 240 to drive the first vertical plate 110 to move upward through the connecting rod, and different trajectory adjustments of the pipette 160 can also be made by replacing the first vertical plate 110.

[0037] A limiting groove 211 is formed in the second vertical plate 210, and a limiting rod 212 is slidably installed in the limiting groove 211. The other end of the limiting rod 212 is connected to the moving block 250. The limiting rod 212 can effectively prevent the moving block 250 from rotating along with the lead screw 240.

[0038] Working principle: During operation, when it is necessary to increase the distance between the pipettes 160, the motor 220 is directly started. The motor 220 drives the lead screw 240 to rotate. When the lead screw 240 rotates, it will drive the lead screw 240 to move upward. When the lead screw 240 moves, it drives the first vertical plate 110 to move upward through the connecting rod. When the first vertical plate 110 moves, it will drive multiple first connecting rods 130 to move towards both ends in the corresponding inclined grooves 120, thereby increasing the distance between the first connecting rods 130. When the first connecting rods 130 move, they will drive the connecting ring 140 to move on the cross bar 150. When the connecting ring 140 moves, it will drive the pipette 160 to move, thereby achieving the operation of adjusting the distance between the pipettes 160. When it is necessary to reduce the distance between the pipettes 160, control the motor 220 to rotate in the reverse direction.

[0039] It can be understood that the present invention is described through some embodiments. As is known to those skilled in the art, without departing from the spirit and scope of the present invention, various changes or equivalent replacements can be made to these features and embodiments. Additionally, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A multi-channel pipetting mechanism with adjustable spacing for sample detection, characterized in that: include: A support assembly (300), the support assembly (300) comprising a bottom plate (310), the bottom plate (310) being provided with two symmetrical slots (311); A distance adjustment component (100), the distance adjustment component (100) comprising a first vertical plate (110) mounted on the upper end of a bottom plate (310), the first vertical plate (110) being provided with two groups of inclined grooves (120), a first connecting rod (130) being mounted on the inner top end of any one of the inclined grooves (120), a connecting ring (140) being mounted on the end of any one of the first connecting rods (130) away from the first vertical plate (110), a cross bar (150) being mounted inside the connecting ring (140), a pipette (160) being mounted on the end of any one of the connecting rings (140) away from the first vertical plate (110), the two groups of inclined grooves (120) being opened in opposite and gradually away directions downward, two clamping blocks (170) being mounted on the end of the first vertical plate (110) close to the bottom plate (310), any one of the clamping blocks (170) being engaged with the corresponding clamping groove (311); A driving assembly (200) includes a second vertical plate (210) installed on the upper end of a bottom plate (310).

2. The multi-channel pipetting mechanism with adjustable spacing for sample detection according to claim 1, characterized in that: Two symmetrical mounting columns (320) are mounted on one end of the bottom plate (310) close to the first vertical plate (110), and opposite ends of the two mounting columns (320) are connected to two ends of the crossbar (150).

3. The multi-channel pipetting mechanism with adjustable spacing for sample detection according to claim 2, characterized in that: Two symmetrical sliding grooves (312) are provided at one end of the bottom plate (310) close to the first vertical plate (110), and a sliding block (321) is installed at one end of any one of the mounting columns (320) close to the bottom plate (310), and any one of the sliding blocks (321) is connected to the corresponding sliding groove (312).

4. The multi-channel pipetting mechanism with adjustable spacing for sample detection according to claim 1, characterized in that: A mounting plate (230) is installed at one end of the second vertical plate (210) close to the first vertical plate (110), a lead screw (240) is installed at one end of the mounting plate (230) close to the bottom plate (310), a moving block (250) is installed on the lead screw (240), a second connecting rod (260) is installed at one end of the moving block (250) close to the first vertical plate (110), an end of the second connecting rod (260) away from the second vertical plate (210) is connected to one end of the first vertical plate (110) close to the second vertical plate (210), a motor (220) is installed at one end of the mounting plate (230) away from the bottom plate (310), and an end of the motor (220) close to the bottom plate (310) is connected to one end of the lead screw (240) away from the bottom plate (310).

5. The multi-channel pipetting mechanism with adjustable spacing for sample detection according to claim 4, characterized in that: A bearing (280) is installed at one end of the lead screw (240) close to the base plate (310), and a fixing plate (290) is installed at one end of the bearing (280) away from the lead screw (240). An end of the fixing plate (290) away from the first vertical plate (110) is connected to an end of the second vertical plate (210) close to the first vertical plate (110).

6. The multi-channel pipetting mechanism with adjustable spacing for sample detection according to claim 4, characterized in that: A second threaded hole (270) is provided at one end of the second connecting rod (260) close to the first vertical plate (110), a first threaded hole (180) is installed on the first vertical plate (110), and a bolt (190) is installed at one end of the first vertical plate (110) away from the second vertical plate (210), and the bolt (190) is engaged with the first threaded hole (180) and the second threaded hole (270).

7. The multi-channel pipetting mechanism with adjustable spacing for sample detection according to claim 4, characterized in that: The second vertical plate (210) is provided with a limiting groove (211), a limiting rod (212) is slidably installed in the limiting groove (211), and the other end of the limiting rod (212) is connected to the moving block (250).

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