Peristaltic pump for spectrograph

Abstract

The utility model discloses a peristaltic pump for a spectrograph, which comprises a pump body provided with a rotor; the first pumping component is connected to the pump body and located on the upper side of the rotor, the first pumping component comprises a first pump pipe, a first pressing block and a first pressing rod, and the first pressing rod is connected with the first pressing block, drives the first pressing block to move towards one side of the first pump pipe and can drive the first pump pipe to be matched with the rotor in an abutting mode; the second pumping component is connected to the pump body and located on the lower side of the rotor, the second pumping component comprises a second pump pipe, a second pressing block and a second pressing rod, and the second pressing rod is connected with the second pressing block, drives the second pressing block to move towards one side of the second pump pipe and can drive the second pump pipe to be matched with the rotor in an abutting mode; when the rotor rotates, the rotor can drive the first pump pipe and the second pump pipe to pump liquid in the opposite directions. The functions of liquid supply and waste discharge are achieved in the same pump body at the same time, the working efficiency is remarkably improved, the system structure is simplified, and the requirement for additional pumping equipment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of spectroscopic analysis instrument technology, and in particular to a peristaltic pump for a spectrometer. Background Technology

[0002] In modern spectroscopic analysis, peristaltic pumps are widely used in sample processing due to their non-polluting and easy-to-maintain characteristics. Traditional peristaltic pumps typically use a single pumping component for liquid transfer. In some applications, such as those requiring simultaneous liquid supply and waste discharge, an additional independent pumping device is often necessary. This not only increases equipment complexity but also raises costs and space requirements. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a peristaltic pump for spectrometers. By integrating dual pumping components, optimizing the pressure roller layout, and using threaded transmission, it achieves efficient and precise bidirectional liquid transfer, simplifies the system structure, reduces volume and cost, and ensures the stability and adaptability of liquid transport through axisymmetric pressure design and pressure block adjustment of the pump tube. This improves the reliability and ease of maintenance of the equipment, meeting the high demands of spectroscopic analysis applications.

[0004] A peristaltic pump for a spectrometer according to an embodiment of the present invention includes:

[0005] The pump body is equipped with a rotor;

[0006] A first pumping component is connected to the pump body and located on the upper side of the rotor. The first pumping component includes a first pump pipe, a first pressure block, and a first pressure rod. The first pressure rod is connected to and drives the first pressure block to move along the side facing the first pump pipe, and can drive the first pump pipe to press against the rotor.

[0007] The second pumping component is connected to the pump body and located below the rotor. The second pumping component includes a second pump pipe, a second pressure block, and a second pressure rod. The second pressure rod is connected to and drives the second pressure block to move toward the side facing the second pump pipe, and can drive the second pump pipe to press against the rotor. When the rotor rotates, the rotor can drive the first pump pipe and the second pump pipe to pump liquid in opposite directions.

[0008] A peristaltic pump for a spectrometer according to an embodiment of the present invention has at least the following beneficial effects: By integrating a first pumping component and a second pumping component arranged vertically, this layout allows the first pump tube and the second pump tube to pump liquid in opposite directions when the rotor rotates, ensuring the continuity and efficiency of liquid transmission. It achieves the simultaneous completion of liquid supply and waste discharge functions within the same pump body, significantly improving work efficiency, simplifying the system structure, and reducing the need for additional pumping equipment. Furthermore, the first pressure rod connects to and drives the first pressure block to move along the side facing the first pump tube, ensuring a tight fit between the first pump tube and the rotor. Similarly, the second pressure rod connects to and drives the second pressure block to move along the side facing the second pump tube, achieving a tight fit between the second pump tube and the rotor. This allows for the separate adjustment of the liquid delivery speed of the first and second pump tubes, adapting to various application requirements. In addition, the dual pumping component design optimizes space utilization, making the entire device more compact and meeting the miniaturization and integration requirements of modern spectrometers. This not only reduces the need for external connectors and lowers the risk of leakage but also simplifies the installation and maintenance process.

[0009] According to some embodiments of the present invention, a peristaltic pump for a spectrometer is provided, wherein the first pump tube is connected to the inlet of the atomizing chamber along the end that pumps the liquid, and the second pump tube is connected to the waste outlet of the atomizing chamber along the end that is away from the end that pumps the liquid.

[0010] According to some embodiments of the present invention, a peristaltic pump for a spectrometer is provided with a plurality of pressure rollers on the outer periphery of the rotor, and the plurality of pressure rollers are evenly arranged along the circumference of the rotor.

[0011] According to some embodiments of this utility model, a peristaltic pump for a spectrometer has more than four pressure rollers and is an even number, and the number of the first pump tubes and the number of the second pump tubes pressed by the pressure rollers are equal.

[0012] According to some embodiments of the present invention, a peristaltic pump for a spectrometer is provided, wherein a first mounting block is fixedly provided on the pump body, and a first pressure rod passes through the first mounting block and is threadedly engaged with the first pressure block.

[0013] According to some embodiments of the present invention, a peristaltic pump for a spectrometer has a centerline of the first pressure rod passing through the center of the rotor.

[0014] According to some embodiments of the present invention, a peristaltic pump for a spectrometer is provided, wherein a second mounting block is fixedly provided on the pump body, and a second pressure rod passes through the second mounting block and is threadedly engaged with the second pump pipe.

[0015] According to some embodiments of the present invention, a peristaltic pump for a spectrometer is provided, wherein the centerline of the second pressure rod passes through the center of the rotor.

[0016] According to some embodiments of the present invention, a peristaltic pump for a spectrometer is provided, wherein the pump body is equipped with two locking blocks, which are respectively arranged on both sides of the rotor. The locking blocks are provided with multiple locking slots, which are used to respectively lock and fix the first pump tube and the second pump tube.

[0017] According to some embodiments of this utility model, a peristaltic pump for a spectrometer is provided, wherein the locking block is connected to an adjusting screw and an adjusting nut. The adjusting screw passes through the locking block and is threadedly connected to the adjusting nut to adjust the width of the locking groove and adjust the clamping force on the first pump tube or the second pump tube.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the structure of a peristaltic pump for a spectrometer according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram showing the connection of the locking block, adjusting screw, and adjusting nut of a peristaltic pump for a spectrometer according to an embodiment of the present invention.

[0022] Explanation of icon numbers:

[0023] Pump body 100; rotor 110; pressure roller 111; first mounting block 120; second mounting block 130; locking block 140; locking groove 1401; adjusting screw 141; adjusting nut 142;

[0024] First pumping component 200; first pump pipe 210; first pressure block 220; first pressure rod 230;

[0025] Second pumping component 300; second pump pipe 310; second pressure block 320; second pressure rod 330. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] In modern spectroscopic analysis, peristaltic pumps are widely used in sample processing due to their non-polluting and easy-to-maintain characteristics. Traditional peristaltic pumps typically use a single pumping component for liquid transfer. In some applications, such as those requiring simultaneous liquid supply and waste discharge, an additional independent pumping device is often necessary. This not only increases equipment complexity but also raises costs and space requirements.

[0032] Therefore, such as Figure 1As shown, this utility model proposes a peristaltic pump for a spectrometer, including a pump body 100, a rotor 110, a first pumping component 200, and a second pumping component 300. The rotor 110 is rotatably disposed in the pump body 100 and rotates during the operation of the peristaltic pump. The first pumping component 200 is connected to the pump body 100 and located on the upper side of the rotor 110, and the second pumping component 300 is connected to the pump body 100 and located on the lower side of the rotor 110. Driven by the rotor 110, the first pumping component 200 and the second pumping component 300 respectively transport liquid. Specifically, the first pumping component 200 includes a first pump tube 210, a first pressure block 220, and a first pressure rod 230. The first pressure rod 230 is connected to and drives the first pressure block 220 to move along the side facing the first pump tube 210, and is capable of driving the first pump tube 210 to press against the rotor 110. Similarly, the second pumping component 300 includes a second pump tube 310, a second pressure block 320, and a second pressure rod 330. The second pressure rod 330 is connected to and drives the second pressure block 320 to move along the side facing the second pump tube 310, and is capable of driving the second pump tube 310 to press against the rotor 110. In some applications, when the rotor 110 rotates, the rotor 110 can drive the first pump tube 210 and the second pump tube 310 to pump liquid in opposite directions. It should be noted that by integrating the first pumping component 200 and the second pumping component 300 arranged vertically, this layout allows the first pump pipe 210 and the second pump pipe 310 to pump liquid in opposite directions when the rotor 110 rotates, ensuring the continuity and efficiency of liquid transmission. This achieves the simultaneous completion of liquid supply and waste discharge within the same pump body 100, significantly improving work efficiency, simplifying the system structure, and reducing the need for additional pumping equipment. Furthermore, the first pressure rod 230 connects to and drives the first pressure block 220 to move along the side facing the first pump pipe 210, allowing the first pump pipe... The first pump tube 210 is tightly fitted with the rotor 110. Similarly, the second pressure rod 330 is also connected to and drives the second pressure block 320 to move along the side facing the second pump tube 310, achieving a tight fit between the second pump tube 310 and the rotor 110. This allows for separate adjustment of the liquid delivery speed of the first pump tube 210 and the second pump tube 310, adapting to various application requirements. Furthermore, the dual-pumping component design optimizes space utilization, making the entire device more compact and meeting the miniaturization and integration requirements of modern spectrometers. This not only reduces the need for external connectors and lowers the risk of leakage but also simplifies installation and maintenance. It is easy to understand that in some applications, only the first pumping component 200 needs to pump liquid. In this case, the second pressure rod 330 can drive the second pressure block 320 to not press against the second pump tube 310, thus preventing the second pump tube 310 from pumping liquid when the rotor 110 rotates. In some applications, only the second pumping component 300 is needed to pump the liquid. In this case, the first pressure rod 230 can drive the first pressure block 220 to not press against the first pump tube 210, so that the first pump tube 210 does not pump liquid when the rotor 110 rotates.Furthermore, it is easy to understand that the liquid delivery direction of the first pump pipe 210 can be adjusted according to the rotation direction of the rotor 110, and similarly, the liquid delivery direction of the second pump pipe 310 can be adjusted according to the rotation direction of the rotor 110. Therefore, in applications, various adaptive applications can be achieved by considering the application scenarios and integrating the flow rate control of the first pumping component 200, the flow rate control of the second pumping component 300, the pumping direction of the first pumping component 200, and the pumping direction of the second pumping component 300.

[0033] In some embodiments of this invention, the first pump tube 210 is connected to the inlet of the nebulization chamber along the end that pumps the liquid, and the second pump tube 310 is connected to the waste outlet of the nebulization chamber along the end that is away from the pumping liquid. That is, the same end of the first pump tube 210 and the second pump tube 310 are connected to the inlet and waste outlet respectively, ensuring a seamless connection between the liquid entering and exiting the nebulization chamber and avoiding potential leakage risks or additional pressure losses from external connections. Simultaneously, the direct connection simplifies the system structure, reduces installation and maintenance costs, and enhances the overall reliability and stability of the system. In this way, the spectrometer can achieve efficient sample processing and waste liquid management without adding additional complexity.

[0034] Reference Figure 1 In some embodiments of this invention, a plurality of pressure rollers 111 are arranged on the outer periphery of the rotor 110. These pressure rollers 111 are evenly distributed along the circumference of the rotor 110, ensuring uniform force on the pump tubes when squeezed. This prevents deformation or damage to the pump tubes due to excessive local pressure, extending their service life. Furthermore, the evenly distributed pressure rollers 111 improve pumping efficiency, ensure smooth liquid flow, and reduce pulsation, which is crucial for precise flow control required in spectral analysis. In addition, the optimized layout of the pressure rollers 111 helps reduce noise levels and improve user experience. For example, if the number of pressure rollers 111 is greater than four and even, and the number of pressure rollers 111 pressing against the first pump tube 210 and the second pump tube 310 is equal, this specific number and distribution of pressure rollers 111 further optimizes pressure distribution during pumping, ensuring that the first pump tube 210 and the second pump tube 310 bear the same load when pumping liquid in some application scenarios, thereby achieving more balanced and stable liquid transfer. Furthermore, the design of an even number of pressure rollers 111 helps maintain the dynamic balance of the rotor 110, reducing vibration during operation and thus improving the stability and reliability of the pump. At the same time, this design also helps improve pumping accuracy, meeting the demands of demanding spectral analysis applications. Optionally, there may be six, eight, ten, twelve, or more pressure rollers 111.

[0035] Refer to Figure 1In some embodiments of this utility model, the pump body 100 is fixedly provided with a first mounting block 120, and a first pressure rod 230 passes through the first mounting block 120 and is threadedly engaged with the first pressure block 220. This allows the user to finely adjust the position between the first pressure block 220 and the first pump tube 210 by rotating the first pressure rod 230, thereby adjusting the clamping force of the first pressure block 220 on the first pump tube 210 to adapt to liquids of different viscosities or different operating conditions. The threaded engagement provides precise adjustment capability, ensuring appropriate contact pressure between the first pump tube 210 and the pressure roller 111, preventing damage to the pump tube due to excessive tightness or a decrease in pumping efficiency due to excessive looseness. Furthermore, the presence of the first mounting block 120 increases the structural stability and helps maintain consistent performance over long-term use. Furthermore, the centerline of the first pressure rod 230 passes through the center of the rotor 110, ensuring that the pressure applied by the first pressure rod 230 is axially symmetrically distributed. This allows the first pressure block 220 to more evenly press against various positions of the first pump tube 210. For example, the first pressure block 220 is arc-shaped and concentric with the rotor 110. In addition, under the pressure of the first pump tube 210, various positions of the rotor 110 also receive uniform pressure, helping to maintain the dynamic balance of the rotor 110, extending its service life, and providing a more uniform and stable pumping environment during rotor 110 rotation. This helps reduce vibration and noise caused by rotor 110 eccentricity, while ensuring fluid transmission accuracy during pumping. This is particularly important for spectral analysis instruments requiring high stability, improving the overall system reliability and performance. Similarly, in some embodiments of this invention, the pump body 100 is fixedly provided with a second mounting block 130, and the second pressure rod 330 passes through the second mounting block 130 and is threadedly engaged with the second pump tube 310. Furthermore, the centerline of the second pressure rod 330 passes through the center of the rotor 110. The function of the second mounting block 130 can be referred to the function of the first mounting block 120, the function of the second pressure rod 330 can be referred to the function of the first pressure rod 230, and the connection and cooperation relationship and effect between the second pressure rod 330 and the second pump pipe 310 can be referred to the connection and cooperation relationship and effect between the first pressure rod 230 and the first pump pipe 210. It will not be elaborated here.

[0036] Refer to Figure 1 and Figure 2In some embodiments of this utility model, the pump body 100 is equipped with two locking blocks 140, which are respectively arranged on both sides of the rotor 110. Each locking block 140 has multiple slots 1401 for respectively locking and fixing the first pump pipe 210 and the second pump pipe 310. It should be noted that the slots 1401 provide reliable mounting points for the pump pipes, ensuring they maintain the correct position and shape throughout operation and preventing pumping problems caused by displacement or bending. Furthermore, the multiple slots 1401 can accommodate pump pipes of different diameters, increasing the versatility of the device. In addition, the presence of the locking blocks 140 enhances the overall structural strength of the pump body 100, improving the durability and impact resistance of the device. This design not only simplifies the installation and disassembly process of the pump pipes but also provides better sealing and stability, reduces the risk of leakage, and improves the overall reliability of the system. Furthermore, in some embodiments of this utility model, the locking block 140 is connected to an adjusting screw 141 and an adjusting nut 142. The adjusting screw 141 passes through the locking block 140 and is threadedly connected to the adjusting nut 142 to adjust the width of the locking groove 1401 and adjust the clamping force on the first pump pipe 210 or the second pump pipe 310. This allows the user to flexibly adjust the clamping degree of the pump pipe according to actual conditions, ensuring optimal sealing and pumping efficiency. The adjustment mechanism also facilitates daily maintenance and calibration, ensuring stable performance after long-term operation. In addition, fine-tuning the clamping force can effectively compensate for the effects of pump pipe aging or wear, extending the service life of the entire system. This adjustable design also improves the adaptability of the device, enabling it to better cope with different types of pump pipes and different working conditions, further enhancing the practicality and flexibility of the equipment. It should be noted that, in addition to more securely fixing the pump tube, the adjustable pump tube clamping design at the slot 1401 can supplement the clamping of the pump tube by the pressure block. In some applications, the line connecting the position of the pressure block and the pressure roller 111 against the pump tube is perpendicular to the line connecting the position of the pressure block and the groove wall of the slot 1401 against the pump tube. Thus, a more comprehensive solution is provided for the method of clamping the pump tube to adjust the flow rate of the liquid.

[0037] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A peristaltic pump for a spectrometer, characterized in that, include: The pump body is equipped with a rotor; A first pumping component is connected to the pump body and located on the upper side of the rotor. The first pumping component includes a first pump pipe, a first pressure block, and a first pressure rod. The first pressure rod is connected to and drives the first pressure block to move along the side facing the first pump pipe, and can drive the first pump pipe to press against the rotor. The second pumping component is connected to the pump body and located below the rotor. The second pumping component includes a second pump pipe, a second pressure block, and a second pressure rod. The second pressure rod is connected to and drives the second pressure block to move toward the side facing the second pump pipe, and can drive the second pump pipe to press against the rotor. When the rotor rotates, the rotor can drive the first pump pipe and the second pump pipe to pump liquid in opposite directions.

2. The peristaltic pump for a spectrometer according to claim 1, characterized in that: The first pump pipe is connected to the inlet of the atomizing chamber at the end that pumps the liquid, and the second pump pipe is connected to the waste outlet of the atomizing chamber at the end that is away from the end that pumps the liquid.

3. A peristaltic pump for a spectrometer according to claim 1, characterized in that: Multiple pressure rollers are provided on the outer periphery of the rotor, and the multiple pressure rollers are evenly arranged along the circumference of the rotor.

4. A peristaltic pump for a spectrometer according to claim 3, characterized in that: The number of pressure rollers is greater than four and is an even number, and the number of the pressure rollers pressing against the first pump pipe is equal to the number of the second pump pipe.

5. A peristaltic pump for a spectrometer according to claim 1, characterized in that: The pump body is fixedly provided with a first mounting block, and the first pressure rod passes through the first mounting block and is threadedly engaged with the first pressure block.

6. A peristaltic pump for a spectrometer according to claim 5, characterized in that: The centerline of the first pressure bar passes through the center of the rotor.

7. A peristaltic pump for a spectrometer according to claim 1, characterized in that: The pump body is fixedly provided with a second mounting block, and the second pressure rod passes through the second mounting block and is threadedly engaged with the second pump pipe.

8. A peristaltic pump for a spectrometer according to claim 7, characterized in that: The centerline of the second pressure bar passes through the center of the rotor.

9. A peristaltic pump for a spectrometer according to claim 1, characterized in that: The pump body is equipped with two locking blocks, which are respectively arranged on both sides of the rotor. The locking blocks are provided with multiple locking slots, which are used to respectively lock and fix the first pump pipe and the second pump pipe.

10. A peristaltic pump for a spectrometer according to claim 9, characterized in that: The locking block is connected to an adjusting screw and an adjusting nut. The adjusting screw passes through the locking block and is threadedly connected to the adjusting nut to adjust the width of the locking groove and adjust the clamping force on the first pump tube or the second pump tube.

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