pipette pump module

Abstract

This utility model discloses a pipette pump module, which includes an outer frame, multiple first drive components, multiple second drive components, and a pipette pump assembly. The outer frame is equipped with a mounting bracket. Each first drive component includes a first mounting base and a first drive member for driving the first mounting base to slide. Each first mounting base is slidably mounted on the mounting bracket along the length of the outer frame. Each second drive component includes an adapter seat and a second drive member for driving the pipette pump unit to slide. The pipette pump assembly includes multiple pipette pump units arranged sequentially along the length of the outer frame. The number of first drive components, second drive components, and pipette pump units are equal and they are arranged in a one-to-one correspondence. Each pipette pump unit is slidably mounted on a corresponding adapter seat along the height of the outer frame. This utility model solves the technical problem of poor flexibility in the use of pipette pump modules.

Description

Technical Field

[0001] This utility model relates to the field of in vitro diagnostic instrument technology, and in particular to a pipette pump module. Background Technology

[0002] Pipette pump modules are core components of modern laboratory automation, high-throughput screening, and precision liquid handling. Essentially, they are highly integrated precision fluid drive units designed to replace traditional manual pipettes, enabling automated, high-precision, and repeatable liquid dispensing, aspiration, and dispensing operations. However, traditional pipette pump modules can only perform evenly spaced sample addition, resulting in poor flexibility.

[0003] Therefore, it is necessary to provide a new pipette pump module to solve the above-mentioned technical problems. Utility Model Content

[0004] The main purpose of this utility model is to provide a pipette pump module, which aims to solve the technical problem of poor flexibility in the use of pipette pump modules.

[0005] To achieve the above objectives, this utility model proposes a pipette pump module, comprising:

[0006] The outer frame is provided with a fixing frame along its length.

[0007] Multiple first driving components, each first driving component includes a first mounting base and a first driving member, each first mounting base is slidably disposed on the fixed frame along the length direction of the outer frame, and each first driving member is disposed on the corresponding first mounting base and is used to drive the corresponding first mounting base to slide.

[0008] Multiple second drive components, each second drive component including an adapter and a second drive member, the second drive member being disposed on the adapter, the adapter being directly or indirectly slidably connected to the fixing frame;

[0009] A pipette pump assembly includes multiple pipette pump units arranged sequentially along the length of the outer frame. The number of the first drive assembly, the second drive assembly, and the pipette pump units are equal and they are arranged in a one-to-one correspondence. Each pipette pump unit is slidably disposed on a corresponding adapter along the height of the outer frame. Each second drive assembly is used to drive the corresponding pipette pump unit to move, and each first drive assembly is used to drive the corresponding pipette pump unit to move along the length of the outer frame.

[0010] In one embodiment, the fixing frame includes two fixing blocks;

[0011] In any two adjacent pipette pump units, the first mounting bases of the two first drive components corresponding to the two pipette pump units are slidably disposed on the two fixed blocks.

[0012] In one embodiment, each of the first drive components further includes a second mounting base, and each adapter connects each of the first mounting bases and the corresponding second mounting bases. Each of the first mounting bases and the corresponding second mounting bases are slidably disposed on both sides of the corresponding fixing block.

[0013] In one embodiment, each of the first mounting bases is provided with a first slider, each of the second mounting bases is provided with a second slider, and each of the fixed blocks is provided with a first slide rail and a second slide rail on both sides respectively. The first slider is slidably connected to the first slide rail, and the second slider is slidably connected to the second slide rail.

[0014] In one embodiment, each of the first driving members has a gear at its output end, and each of the fixed blocks has a rack, with each gear meshing with the corresponding rack.

[0015] In one embodiment, each of the first drive components further includes an adjusting seat, an elastic element, and a limiting shaft. The limiting shaft passes through the elastic element and the adjusting seat in sequence and is connected to the corresponding first mounting seat. Each of the first drive components is disposed on the corresponding adjusting seat. The elastic element is used to push the corresponding adjusting seat so that the corresponding gear moves toward the direction of the corresponding rack.

[0016] In one embodiment, in any two adjacent pipette pump units, the two second drive components corresponding to the two pipette pump units are staggered along the height direction of the outer frame.

[0017] In one embodiment, each of the pipetting pump units is provided with a timing belt on the side facing the fixed frame, and each of the second drive members is provided with a timing pulley at its output end, with each timing belt meshing with the corresponding timing pulley.

[0018] In one embodiment, each of the adapter seats is provided with a tensioning pulley, and each of the timing belts passes around the corresponding tensioning pulley and engages with the corresponding timing pulley.

[0019] In one embodiment, each of the pipette pump units is provided with a third slide rail on the side facing the fixed frame, and each of the adapter seats is provided with a third slider, and each third slider is slidably connected to the corresponding third slide rail.

[0020] The technical solution of this utility model, by setting an independent first driving component to drive each pipette pump unit to slide along the length direction of the outer frame, enables non-equidistant sample dispensing of the pipette pump module, improving the flexibility of the pipette pump module during use. In this embodiment, each first mounting base is slidably disposed on the fixed frame along the length direction of the outer frame, and each first driving component is used to drive the corresponding first mounting base to slide, thereby driving each pipette pump unit to slide along the length direction of the outer frame. By setting an independent first driving component to drive each pipette pump unit to slide along the length direction of the outer frame, the spacing between each pipette pump unit can be adjusted during sample dispensing, realizing non-equidistant sample dispensing of the pipette pump module. At the same time, when using the pipette pump module, the limitations of the pipette pump module can be greatly reduced. Specifically, during sample dispensing, the operator can control the corresponding first driving component to drive the corresponding pipette pump unit to slide according to actual needs, adjusting the spacing between each pipette pump module to achieve non-equidistant sample dispensing of the pipette pump module. Each adapter is mounted on a corresponding first mounting base, and each second drive unit is mounted on a corresponding adapter and is used to drive the corresponding pipetting pump unit to slide along the height direction of the outer frame. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the structure of the pipette pump module in one embodiment of the present invention when the pipette pump units are in close contact;

[0023] Figure 2 A schematic diagram of the structure of the pipette pump module in one embodiment of the present invention with the spacing between each pipette pump unit set (wherein, the pipette pump unit is separated from the first driving component to form an exploded view);

[0024] Figure 3 A schematic diagram of the structure of the first drive assembly, the second drive assembly, the pipetting pump unit and the fixing frame (with the fixing block removed) in one embodiment of the present invention;

[0025] Figure 4 A schematic diagram of the structure of a portion of the first driving component in one embodiment of this utility model;

[0026] Figure 5 A schematic diagram showing the connection between each pipette pump unit and each second drive assembly in one embodiment of the present invention;

[0027] Figure 6 A schematic diagram of the connection between the pipetting pump unit and the second drive assembly in one embodiment of this utility model.

[0028] Explanation of icon numbers:

[0029] 100. Outer frame; 110. Fixing bracket; 111. Fixing block; 1111. First slide rail; 1112. Second slide rail; 1113. Rack; 200. First drive assembly; 210. First mounting base; 211. First slider; 220. First drive component; 221. Gear; 230. Second mounting base; 231. Second slider; 240. Adjusting seat; 250. Elastic element; 260. Limiting shaft; 300. Second drive assembly; 310. Adapter seat; 311. Tensioning wheel; 320. Second drive component; 321. Synchronous pulley; 400. Pipette pump assembly; 410. Pipette pump unit; 411. Synchronous belt; 412. Third slide rail.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously.

[0034] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0035] Pipette pump modules are core components for modern laboratory automation, high-throughput screening, and precision liquid handling. During actual production and R&D, researchers have found that in traditional pipette pump modules, multiple pump units are configured on the same running track, allowing only equidistant sample dispensing. This results in a lack of flexibility and significant limitations in the use of the pipette pump module.

[0036] This utility model proposes a pipette pump module, aiming to solve the technical problem of poor flexibility in the use of pipette pump modules.

[0037] Please see Figures 1 to 3 In one embodiment of this utility model, the pipetting pump module includes an outer frame 100, a plurality of first driving components 200, a plurality of second driving components 300, and a pipetting pump assembly 400. A fixing frame 110 is provided along the length direction of the outer frame 100. Each first driving component 200 includes a first mounting base 210 and a first driving member 220. Each first mounting base 210 is slidably disposed on the fixing frame 110 along the length direction of the outer frame 100. Each first driving member 220 is disposed on a corresponding first mounting base 210 and is used to drive the corresponding first mounting base 210 to slide. Each second driving component 300 includes an adapter 310 and a second driving member 320. The adapter 310 is directly or indirectly slidably connected to the fixing frame 110. The pipette pump assembly 400 includes multiple pipette pump units 410, which are arranged sequentially along the length of the outer frame 100. The number of the first drive assembly 200, the second drive assembly 300, and the pipette pump units 410 are equal and correspond one-to-one. Each pipette pump unit 410 is slidably mounted on the corresponding adapter 310 along the height of the outer frame 100. Each second drive member 320 is used to drive the corresponding pipette pump unit 410 to move, and each first drive member 220 is used to drive the corresponding pipette pump unit 410 to move along the length of the outer frame 100. The length of the outer frame 100 refers to... Figure 1 , Figure 2 and Figure 3 The direction indicated by Y in the figure, the height direction of the outer frame 100 refers to Figure 1 , Figure 2 and Figure 3 The direction indicated by Z in the diagram. In a specific embodiment, both the first drive member 220 and the second drive member 320 can be drive motors.

[0038] The technical solution of the present utility model can achieve non-uniform spacing sampling of the pipette module by setting an independent first driving component 200 to drive each pipette unit 410 to slide along the length direction of the outer frame 100, thereby enhancing the flexibility of the pipette module during use. In this embodiment, each first mounting seat 210 is slidably arranged on the fixing frame 110 along the length direction of the outer frame 100, and each first driving member 220 is used to drive the corresponding first mounting seat 210 to slide, and further drive each pipette unit 410 to slide along the length direction of the outer frame 100. By setting an independent first driving component 200 to drive each pipette unit 410 to slide along the length direction of the outer frame 100, the spacing between each pipette unit 410 can be adjusted during sampling, realizing non-uniform spacing sampling of the pipette module. At the same time, when applying the pipette module, the limitations of the pipette module can be greatly reduced. Specifically, during sampling, the operator can control the corresponding first driving component 200 to drive the corresponding pipette unit 410 to slide according to actual needs, and adjust the spacing between each pipette module to achieve non-uniform spacing sampling of the pipette module. Each adapter seat 310 is arranged on the corresponding first mounting seat 210, and each second driving member 320 is arranged on the corresponding adapter seat 310 and is used to drive the corresponding pipette unit 410 to slide along the height direction of the outer frame 100. This pipette module is applied to technical fields such as infusion devices.

[0039] In this embodiment, the pipette unit 410 is a thin pipette, and each pipette unit 410 is arranged upright, that is, the pipetting head of the pipette unit 410 is located at the bottom. The outer frame 100 is formed by splicing three horizontal plates and two vertical plates by means of screwing, and it forms a "hui" - shaped structure with the fixing frame 110 arranged on the outer frame 100, which has the characteristics of simple structure and convenient assembly; at the same time, the "hui" - shaped structure formed by the outer frame 100 and the fixing frame 110 can also ensure the structural strength of the outer frame 100 and ensure the structural stability of the pipette module; among them, the "hui" - shaped structure formed by the outer frame 100 and the fixing frame 110 means that a "hui" character appears in the orthographic projection direction of the outer frame.

[0040] Please refer to Figure 1 and Figure 2In one embodiment of this utility model, the fixing frame 110 includes two fixing blocks 111; in any two adjacent pipette pump units 410, the first mounting seats 210 of the two first driving components 200 corresponding to the two pipette pump units 410 are slidably disposed on the two fixing blocks 111. In this embodiment, by slidably disposing the two first driving components 200 corresponding to any two adjacent pipette pump units 410 on the two fixing blocks 111, interference between the two first driving components 200 corresponding to the two pipette pump units 410 can be avoided when the two pipette pump units 410 are close to each other. Thus, the two adjacent pipette pump units 410 can be brought as close as possible, reducing the minimum distance that can be achieved between the two adjacent pipette pump units 410. In one specific embodiment, there are eight first driving components 200, eight second driving components 300, and eight pipette pump units 410. The eight pipette pump units 410 are arranged sequentially along the length of the outer frame 100. The first, third, fifth, and seventh of the eight first driving components 200 are slidably disposed on one of the fixing blocks 111, while the second, fourth, sixth, and eighth of the eight first driving components 200 are slidably disposed on another fixing block 111.

[0041] Please see Figures 1 to 3 In one embodiment of this utility model, each first driving component 200 further includes a second mounting base 230. Each adapter 310 connects each first mounting base 210 and the corresponding second mounting base 230. Each first mounting base 210 and the corresponding second mounting base 230 are slidably disposed on both sides of the corresponding fixing block 111. In this embodiment, the two mounting bases slidably disposed on both sides of the fixing block 111 simultaneously provide guidance for the sliding of the first driving component 200, which can improve the stability of the first driving component 200 when driving the pipette pump unit 410 to slide along the length direction of the outer frame 100.

[0042] In this embodiment, the adapter 310 is indirectly slidably connected to the fixed frame 110, that is, by connecting each adapter 310 to two mounting seats, the adapter 310 is indirectly slidably connected to the fixed frame 110. Alternatively, the adapter 310 can also be directly slidably connected to the fixed frame 110, that is, the adapter 310 is directly and slidably mounted on the fixed frame 110 using a slide rail and slider mechanism.

[0043] Please see Figure 2 and Figure 3In one embodiment of this utility model, each first mounting base 210 is provided with a first slider 211, each second mounting base 230 is provided with a second slider 231, and each fixed block 111 has a first slide rail 1111 and a second slide rail 1112 respectively on both sides. The first slider 211 is slidably connected to the first slide rail 1111, and the second slider 231 is slidably connected to the second slide rail 1112. In this embodiment, the first mounting base 210 and the second mounting base 230 are slidably disposed on the fixed block 111 by means of slider and slide rail cooperation, which has the characteristics of high precision and good stability, and can improve the stability of the first driving assembly 200 driving the pipetting pump unit 410 to slide along the length direction of the outer frame 100.

[0044] Please see Figure 3 In one embodiment of this utility model, each first driving member 220 is provided with a gear 221 at its output end, and each fixed block 111 is provided with a rack 1113, with each gear 221 meshing with the corresponding rack 1113. In this embodiment, the first driving member 220 transmits power through the engagement of the gear 221 and the rack 1113, which features high structural strength and high precision, thereby improving the structural strength of the pipetting pump module. Simultaneously, it can more precisely control the movement of each pipetting pump unit 410, ensuring the accurate positioning of the pipetting pump unit 410.

[0045] Please see Figure 4 In one embodiment of this utility model, each first driving component 200 further includes an adjusting seat 240, an elastic element 250, and a limiting shaft 260. The limiting shaft 260 passes through the elastic element 250 and the adjusting seat 240 in sequence and is connected to the corresponding first mounting seat 210. Each first driving component 220 is disposed on the corresponding adjusting seat 240. The elastic element 250 is used to push the corresponding adjusting seat 240 so that the corresponding gear 221 moves towards the corresponding rack 1113. In this embodiment, the elastic element 250 can provide a restoring force to push the corresponding adjusting seat 240 so that the corresponding gear 221 moves towards the corresponding rack 1113. By setting the elastic element 250 and the adjusting seat 240, and setting the first driving component 220 on the adjusting seat 240, the gear 221 disposed at the output end of the first driving component 220 can adaptively approach the corresponding rack 1113, avoiding offset, slippage, or jamming. In a specific embodiment, the elastic element 250 can be a spring.

[0046] Please see Figure 5In one embodiment of this utility model, in any two adjacent pipette pump units 410, the two second drive components 300 corresponding to the two pipette pump units 410 are staggered along the height direction of the outer frame 100. In this embodiment, by staggering the two second drive components 300 corresponding to any two adjacent pipette pump units 410 along the height direction of the outer frame 100, interference between the corresponding two second drive components 300 can be avoided when the two pipette pump units 410 are close to each other. Thus, the two adjacent pipette pump units 410 can be brought as close as possible, reducing the minimum distance that can be achieved between the two adjacent pipette pump units 410. In a specific embodiment, in two pipette pump units 410 adjacent to the same pipette pump unit 410, the two second drive components 300 provided in the two pipette pump units 410 are correspondingly provided. Specifically, when the thickness of the selected pipette pump unit 410 is no more than 9 mm, by adopting the above-mentioned layout of the first drive component 200 and the second drive component 300, the minimum distance between any two adjacent pipette pump units 410 can reach 9 mm.

[0047] Please see Figure 6 In one embodiment of this utility model, each pipette pump unit 410 is provided with a synchronous belt 411 on the side facing the fixed frame 110, and each output end of the second drive member 320 is provided with a synchronous pulley 321, with each synchronous belt 411 meshing with the corresponding synchronous pulley 321. In this embodiment, the second drive member 320 drives the corresponding pipette pump unit 410 to rise and fall through the synchronous belt 411, which can reduce the shaking generated by the pipette pump unit 410 during rising and falling. In a specific embodiment of this utility model, each adapter 310 is provided with a tensioning pulley 311, and each synchronous belt 411 passes around the corresponding tensioning pulley 311 and meshes with the corresponding synchronous pulley 321. The tensioning pulley 311 is used to tension the synchronous belt 411 to prevent the synchronous belt 411 from slipping, shaking, and falling off. In a specific embodiment, each adapter 310 is provided with two tensioning pulleys 311, which are respectively provided on both sides of the synchronous pulley 321.

[0048] Please see Figure 6 In one embodiment of this utility model, each pipetting pump unit 410 is provided with a third slide rail 412 on the side facing the fixing frame 110, and each adapter 310 is provided with a third slider, with each third slider slidably connected to the corresponding third slide rail 412. In this embodiment, each pipetting pump unit 410 is installed on the corresponding adapter 310 by means of slide rail and slider cooperation, which can improve the stability when the second drive assembly 300 drives the pipetting pump unit 410 to slide along the height direction of the outer frame 100.

[0049] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A pipette pump module, characterized in that, include: The outer frame is provided with a fixing frame along its length. Multiple first driving components, each first driving component includes a first mounting base and a first driving member, each first mounting base is slidably disposed on the fixed frame, and each first driving member is disposed on the corresponding first mounting base and is used to drive the corresponding first mounting base to slide. Multiple second drive components, each second drive component including an adapter and a second drive member, the second drive member being disposed on the adapter, the adapter being directly or indirectly slidably connected to the fixing frame; A pipette pump assembly includes multiple pipette pump units arranged sequentially along the length of the outer frame. The number of the first drive assembly, the second drive assembly, and the pipette pump units are equal and they are arranged in a one-to-one correspondence. Each pipette pump unit is slidably disposed on a corresponding adapter along the height of the outer frame. Each second drive assembly is used to drive the corresponding pipette pump unit to move, and each first drive assembly is used to drive the corresponding pipette pump unit to move along the length of the outer frame.

2. The pipette pump module as described in claim 1, characterized in that, The mounting bracket includes two fixing blocks; In any two adjacent pipette pump units, the first mounting bases of the two first drive components corresponding to the two pipette pump units are slidably disposed on the two fixed blocks.

3. The pipette pump module as described in claim 2, characterized in that, Each of the first drive components further includes a second mounting base, and each adapter connects each of the first mounting bases and the corresponding second mounting bases. Each of the first mounting bases and the corresponding second mounting bases are slidably disposed on both sides of the corresponding fixing block.

4. The pipette pump module as described in claim 3, characterized in that, Each of the first mounting bases is provided with a first slider, each of the second mounting bases is provided with a second slider, and each of the fixed blocks is provided with a first slide rail and a second slide rail on both sides respectively. The first slider is slidably connected to the first slide rail, and the second slider is slidably connected to the second slide rail.

5. The pipette pump module as described in claim 2, characterized in that, Each of the first driving components has a gear at its output end, and each of the fixed blocks has a rack. Each gear meshes with the corresponding rack.

6. The pipette pump module as described in claim 5, characterized in that, Each of the first drive components further includes an adjustment seat, an elastic element, and a limiting shaft. The limiting shaft passes through the elastic element and the adjustment seat in sequence and is connected to the corresponding first mounting seat. Each of the first drive components is disposed on the corresponding adjustment seat. The elastic element is used to push the corresponding adjustment seat so that the corresponding gear moves toward the direction of the corresponding rack.

7. The pipette pump module as described in claim 1, characterized in that, In any two adjacent pipette pump units, the two second drive components corresponding to the two pipette pump units are staggered along the height direction of the outer frame.

8. The pipette pump module as described in any one of claims 1 to 7, characterized in that, Each of the pipetting pump units is provided with a synchronous belt on the side facing the fixed frame, and each of the second drive units is provided with a synchronous pulley at its output end, with each synchronous belt meshing with the corresponding synchronous pulley.

9. The pipette pump module as described in claim 8, characterized in that, Each of the adapters is provided with a tensioning pulley, and each of the timing belts passes around the corresponding tensioning pulley and meshes with the corresponding timing pulley.

10. The pipette pump module as described in any one of claims 1 to 7, characterized in that, Each of the pipetting pump units is provided with a third slide rail on the side facing the fixed frame, and each of the adapter seats is provided with a third slider, and each of the third sliders is slidably connected to the corresponding third slide rail.

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