Liquid separation needle head device capable of sucking in single row and multiple rows

Abstract

The utility model relates to the technical field of liquid distribution needle heads, in particular to a liquid distribution needle head device capable of sucking in a single-row and multi-row mode, which comprises a mounting plate and a liquid distribution assembly, the liquid distribution assembly comprises a mounting component, a first liquid distribution body, a first liquid distribution needle, a lifting part and an auxiliary component, the mounting plate is connected with a pipettor to move, and the lifting part is an electric telescopic rod. The first liquid distributor is fixed to the top of the mounting plate, the output end of the first liquid distributor penetrates through the mounting plate and then is fixedly connected with the first liquid distributor to drive the first liquid distributor to move up and down, the bottom of the first liquid distributor is fixedly communicated with a plurality of first liquid distribution needles, and the first liquid distributor is connected with a micro air pump through a connecting pipe, so that the first liquid distribution needles suck liquid and add samples; the auxiliary component is communicated with the first liquid distribution body and connected with the micro air pump through the connecting pipe, sample adding is assisted, single-row or multi-row suction and single-row or multi-row sample adding are achieved through the first liquid distribution needle which ascends and descends, the application range is wider, and the working efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid separation needles, in particular to a liquid separation needle device capable of single-row or multi-row aspiration. Background Art

[0002] A dispensing tip is a laboratory tool that is often used in liquid handling operations. It is usually used with a dispenser or pipette to accurately aspirate, transfer, or dispense liquids. The design of the dispensing tip allows it to easily fit into the opening of a liquid container (such as a test tube, beaker, or microtiter plate), allowing for efficient transfer of liquids.

[0003] Traditional dispensing needles absorb reagents either in a single row or in multiple rows at the same time. When faced with a situation where there are few containers to absorb and many containers to add samples, the operation is inconvenient and affects work efficiency. Summary of the invention

[0004] The utility model aims to provide a single-row or multi-row dispensing needle device, which solves the problem that the traditional dispensing needle is inconvenient to operate and affects the work efficiency when there are few containers for absorption and many containers for sample addition.

[0005] To achieve the above-mentioned purpose, the utility model provides a liquid dispensing needle device capable of single-row and multi-row aspiration, comprising a mounting plate and a liquid dispensing assembly;

[0006] The liquid-dispensing assembly includes a mounting component, a first liquid-dispensing body, a first liquid-dispensing needle, a lifting member and an auxiliary component. The mounting component is fixedly connected to the mounting plate, the lifting member is connected to the mounting plate, and the output end of the lifting member passes through the mounting plate. The first liquid-dispensing body is fixedly connected to the output end of the lifting member. There are multiple first liquid-dispensing needles, and the multiple first liquid-dispensing needles are respectively connected to the first liquid-dispensing body and are respectively located on a side of the first liquid-dispensing body away from the lifting member. The auxiliary component is connected to the mounting component and is connected to the first liquid-dispensing body.

[0007] Wherein, the auxiliary component comprises a connecting hose, a control valve and a second liquid distributor, and both ends of the connecting hose are respectively connected with the first liquid distributor and the second liquid distributor; and the control valve is arranged on the connecting hose.

[0008] Wherein, the auxiliary component further includes a second liquid-separating needle, and the number of the second liquid-separating needles is plural, and the plural second liquid-separating needles are respectively connected to the second liquid-separating body and are respectively located at the bottom of the second liquid-separating body.

[0009] Among them, the mounting component includes a column, a guide plate and a fixed plate, the column is fixedly connected to the mounting plate and is located at the bottom of the mounting plate; the guide plate is fixedly connected to the column and fixedly connected to the second dispensing needle and is located below the mounting plate; the fixed plate is fixedly connected to the column and slidably connected to the first dispensing needle and is located below the guide plate.

[0010] Wherein, the mounting component further includes a protective cover, which is fixedly connected to the fixing plate and is located outside the first liquid-dispensing needle and the second liquid-dispensing needle.

[0011] The utility model discloses a liquid dispensing needle device capable of single-row or multi-row aspiration, wherein the mounting plate is used to connect a pipette to achieve movement, the mounting component is arranged on the mounting plate, the lifting component is an electric telescopic rod, fixed on the top of the mounting plate, and the output end passes through the mounting plate, and then is fixedly connected to the first liquid dispensing liquid to drive the first liquid dispensing liquid to move up and down, a plurality of the first liquid dispensing needles are fixedly connected to the bottom of the first liquid dispensing liquid, and the first liquid dispensing liquid is connected to a micro-vacuum pump through a connecting pipe, and a vacuum is formed inside the first liquid dispensing needle by using the micro-vacuum pump, so that the first liquid dispensing needle can aspirate liquid and add samples, the auxiliary component is connected to the first liquid dispensing liquid, and is connected to the micro-vacuum pump through a connecting pipe to assist in adding samples, and the lifting of the first liquid dispensing needle can achieve single-row or multi-row aspiration, as well as single-row or multi-row adding samples, and has a wider range of applications and effectively improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0013] Figure 1 It is a schematic diagram of the overall structure of the liquid dispensing needle device capable of single-row or multi-row aspiration of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the auxiliary component of the utility model.

[0015] In the figure: 101-mounting plate, 102-first liquid distributor, 103-first liquid distributor needle, 104-lifting member, 105-connecting hose, 106-control valve, 107-second liquid distributor, 108-second liquid distributor needle, 109-column, 110-guide plate, 111-fixed plate, 112-protective cover. DETAILED DESCRIPTION

[0016] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0017] See also Figure 1 and Figure 2 ,in, Figure 1 It is a schematic diagram of the overall structure of the liquid dispensing needle device capable of single-row or multi-row aspiration of the utility model. Figure 2 The utility model provides a single-row and multi-row aspiration liquid dispensing needle device, comprising a mounting plate 101 and a liquid dispensing assembly, wherein the liquid dispensing assembly comprises a mounting member, a first liquid dispensing body 102, a first liquid dispensing needle 103, a lifting member 104 and an auxiliary member, wherein the auxiliary member comprises a connecting hose 105, a control valve 106, a second liquid dispensing body 107 and a second liquid dispensing needle 108, and wherein the mounting member comprises a column 109, a guide plate 110, a fixing plate 111 and a protective cover 112.

[0018] According to this specific embodiment, the mounting component is fixedly connected to the mounting plate 101, the lifting component 104 is connected to the mounting plate 101, and the output end of the lifting component 104 passes through the mounting plate 101, the first liquid-dividing liquid 102 is fixedly connected to the output end of the lifting component 104, the number of the first liquid-dividing needles 103 is multiple, and the multiple first liquid-dividing needles 103 are respectively connected to the first liquid-dividing liquid 102 and are respectively located on the side of the first liquid-dividing liquid 102 away from the lifting component 104, and the auxiliary component is connected to the mounting component and is connected to the first liquid-dividing liquid 102. The mounting plate 101 is used to connect the moving device to achieve movement. The mounting component is arranged on the mounting plate 101 and is used to install the first liquid-separating needle 103 and the auxiliary component. The first liquid-separating body 102 is a hollow structure, and multiple first liquid-separating needles 103 are connected at the bottom. The first liquid-separating needle 103 extends into the container for suction or sample addition. The first liquid-separating body 102 is connected to a micro vacuum pump through a connecting pipe. The micro vacuum pump sucks away the air in the first liquid-separating body 102 to form a vacuum, thereby giving suction force to the first liquid-separating needle 103. The micro vacuum pump exhausts air to enable the first liquid-separating needle 103 to discharge liquid, that is, add samples. The lifting member 104 is an electric telescopic rod, and the output end is connected to the first liquid-separating body 102 to drive the first liquid-separating body 102 and the first liquid-separating needle 103 to move up and down.

[0019] The two ends of the connecting hose 105 are respectively connected to the first liquid distributor 102 and the second liquid distributor 107; the control valve 106 is arranged on the connecting hose 105. The first liquid distributor 102 and the second liquid distributor 107 are connected through the connecting hose 105, and the control valve 106 is arranged on the connecting hose 105, and the connection between the first liquid distributor 102 and the second liquid distributor 107 is controlled by electric control.

[0020] Secondly, there are multiple second liquid-dispensing needles 108, which are respectively connected to the second liquid-dispensing liquid 107 and respectively located at the bottom of the second liquid-dispensing liquid 107. Multiple second liquid-dispensing needles 108 are connected below the second liquid-dispensing liquid 107 and respectively correspond to the arrangement of the first liquid-dispensing needles 103, forming at least 12 rows and 8 columns of sample adding needles.

[0021] Meanwhile, the column 109 is fixedly connected to the mounting plate 101 and is located at the bottom of the mounting plate 101; the guide plate 110 is fixedly connected to the column 109 and is fixedly connected to the second liquid-dispensing needle 108 and is located below the mounting plate 101; the fixing plate 111 is fixedly connected to the column 109 and is slidably connected to the first liquid-dispensing needle 103 and is located below the guide plate 110. The column 109 is used to fix the guide plate 110 and the fixing plate 111, the guide plate 110 is located below the mounting plate 101, the fixing plate 111 is located below the guide plate 110, the first liquid-dispensing needle 103 penetrates the guide plate 110 and the fixing plate 111 and can slide along them, the second liquid-dispensing needle 108 is fixed to the guide plate 110 and the fixing plate 111, and the length of the first liquid-dispensing needle 103 is longer than that of the second liquid-dispensing needle 108.

[0022] In addition, the protective cover 112 is fixedly connected to the fixing plate 111 and is located outside the first and second liquid dispensing needles 103 and 108. The protective cover 112 is fixed below the fixing plate 111 and covers the outside of the first and second liquid dispensing needles 103 and 108 to play a protective role.

[0023] The present embodiment uses a liquid dispensing needle device capable of single-row and multi-row aspiration. The mounting plate 101 is connected to the moving device to drive the first liquid dispensing needle 103 and the second liquid dispensing needle 108 to move. The micro air pump is started to perform aspiration and sample addition operations. During aspiration, the lifting member 104 drives the first liquid dispensing needle 102 to move downward, so that the first liquid dispensing needle 103 in the first row extends out alone. The connected micro air pump is started to aspirate samples in a single row during the experiment. The lifting member 104 drives the first liquid dispensing needle 102 to move downward, so that the first liquid dispensing needle 103 in the first row extends out alone. The connected micro air pump is started to aspirate samples in a single row during the experiment. Withdraw, after the first row of the dispensing needles are withdrawn, they form a whole with the other 11 rows of the second dispensing needles 108, open the control valve 106, and start the connected micro vacuum pump to allow the second dispensing liquid 107 to also absorb the reagent, and then add samples to 96 wells at a time, which greatly improves the sampling rate, and realizes single-row or multi-row absorption and single-row or multi-row sampling by controlling the control valve 106 and the micro vacuum pump connected to the first dispensing liquid 102 and the second dispensing liquid 107, which has a wider range of applications and effectively improves work efficiency.

[0024] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A liquid dispensing needle device capable of single-row or multi-row aspiration, comprising a mounting plate, characterized in that: Also included is a liquid dispensing assembly; The liquid-dispensing assembly includes a mounting component, a first liquid-dispensing body, a first liquid-dispensing needle, a lifting member and an auxiliary component. The mounting component is fixedly connected to the mounting plate, the lifting member is connected to the mounting plate, and the output end of the lifting member passes through the mounting plate. The first liquid-dispensing body is fixedly connected to the output end of the lifting member. There are multiple first liquid-dispensing needles, and the multiple first liquid-dispensing needles are respectively connected to the first liquid-dispensing body and are respectively located on a side of the first liquid-dispensing body away from the lifting member. The auxiliary component is connected to the mounting component and is connected to the first liquid-dispensing body.

2. The single-row and multi-row aspiration dispensing needle device according to claim 1, characterized in that: The auxiliary component includes a connecting hose, a control valve and a second liquid distributor. Both ends of the connecting hose are respectively connected to the first liquid distributor and the second liquid distributor. The control valve is arranged on the connecting hose.

3. The single-row and multi-row aspiration dispensing needle device according to claim 2, characterized in that: The auxiliary component further includes a second liquid-dispensing needle. There are a plurality of second liquid-dispensing needles, and the plurality of second liquid-dispensing needles are respectively connected to the second liquid-dispensing body and are respectively located at the bottom of the second liquid-dispensing body.

4. The single-row and multi-row aspiration dispensing needle device according to claim 3, characterized in that: The mounting component includes a column, a guide plate and a fixed plate, the column is fixedly connected to the mounting plate and is located at the bottom of the mounting plate; the guide plate is fixedly connected to the column and fixedly connected to the second dispensing needle and is located below the mounting plate; the fixed plate is fixedly connected to the column and slidably connected to the first dispensing needle and is located below the guide plate.

5. The single-row and multi-row aspiration dispensing needle device according to claim 4, characterized in that: The mounting component further includes a protective cover, which is fixedly connected to the fixing plate and is located outside the first liquid-dispensing needle and the second liquid-dispensing needle.

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