Microfluidic nozzle with high-precision flow control

Abstract

The utility model discloses a microfluidic nozzle with high-precision flow control, which relates to the technical field of single-fluid nozzles and comprises a single-fluid nozzle body, a connector is fixedly connected to the top of the single-fluid nozzle body, an inner tube is fixedly connected to the top of the connector, and a mounting base is slidably connected to the outer side of the inner tube. A connecting assembly is arranged between the top of the connector and the bottom of the mounting base, and the connecting assembly is used for fixing the connector; the connecting assembly comprises fixing blocks, and the fixing blocks are fixedly connected to the top of the connector at equal intervals. According to the microfluidic nozzle with high-precision flow control disclosed by the utility model, the connecting assembly is utilized, the nozzle is simpler to mount and dismount, and a user can easily fix or dismount the nozzle according to specified steps, so that the complexity of operation is reduced. Through the novel connection mode, the structure is prevented from being directly exposed to the environment, the risks of rusting and corrosion of parts are reduced, and then the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of single-fluid nozzle technology, and in particular to a microfluidic nozzle with high-precision flow control. Background Technology

[0002] There are many types of microfluidic nozzles for high-precision flow control, including single-fluid nozzles. Single-fluid nozzles are specifically designed to handle only one type of fluid and are typically used for precise flow control of liquids or gases. These nozzles are widely used in various fields, including biomedical analysis, microfluidic experiments, biosensors, and chemical reactions. In these applications, highly repeatable and stable flow output can be achieved.

[0003] While the external threads on traditional single-fluid nozzles facilitate installation and fixation, they do present some drawbacks after prolonged use. In particular, the threads can rust and become impossible to disassemble. Rust or corrosion can cause the connection between the threads and the mounting base to become extremely tight, potentially rendering disassembly impossible. This makes nozzle replacement or maintenance difficult, increasing repair costs and time. To address these issues, we have introduced a microfluidic nozzle with high-precision flow control. Utility Model Content

[0004] This utility model discloses a microfluidic nozzle with high-precision flow control. It studies and improves the existing structure and its shortcomings, and provides a microfluidic nozzle with high-precision flow control to achieve better practical value.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-precision flow control microfluidic nozzle includes a single-fluid nozzle body, a connector fixedly connected to the top of the single-fluid nozzle body, an inner tube fixedly connected to the top of the connector, a mounting base slidably connected to the outer side of the inner tube, and a connecting component provided between the top of the connector and the bottom of the mounting base, the connecting component being used to fix the connector.

[0007] The connecting component includes a fixing block, which is fixedly connected to the top of the connector at equal intervals. The bottom of the mounting base is provided with placement grooves at equal intervals, and the outer side of the fixing block is slidably connected to the inside of the placement groove.

[0008] In a preferred embodiment, the connecting assembly further includes a groove, which is equidistantly formed on the top of the mounting base. A pressing block is slidably connected inside the groove. Two mounting rods are fixedly connected to one side of the pressing block. A receiving groove is formed on one side of the inner wall of the placement groove. One end of the mounting rod extends into the receiving groove and is fixedly connected to a movable plate. A spring is provided on the outer side of the mounting rod.

[0009] In a preferred embodiment, a fixing plate is fixedly connected to the bottom of the movable plate, a fixing groove is provided on one side of the fixing block, and the top of the fixing plate abuts against the top of the inner wall of the fixing groove.

[0010] In a preferred embodiment, the bottom of the fixing plate is provided with a slope.

[0011] In a preferred embodiment, both the top of the connector and the bottom of the mounting base are provided with slots, and a sealing ring is provided inside the slot.

[0012] The high-precision flow control microfluidic nozzle provided by this invention has the following advantages:

[0013] Firstly, the connection components make the installation and removal of the nozzles much simpler. Users can easily fix and remove the nozzles by simply following the steps, reducing the complexity of the operation. By changing the connection method, the problem of the structure being exposed to the environment is avoided, thereby reducing the risk of parts rusting and corrosion and extending the service life of the device.

[0014] Secondly, the inner tube increases the sealing between the connector and the mounting base. The sealing ring further enhances the sealing of the connection between the connector and the mounting base, effectively preventing fluid leakage, ensuring the normal operation of the system, and enhancing the overall reliability of the equipment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the microfluidic nozzle with high-precision flow control proposed in this utility model.

[0016] Figure 2 This is a cross-sectional schematic diagram of the microfluidic nozzle with high-precision flow control proposed in this utility model.

[0017] Figure 3 This is a first exploded schematic diagram of the high-precision flow control microfluidic nozzle proposed in this utility model.

[0018] Figure 4 This is a second explosion diagram of the microfluidic nozzle with high-precision flow control proposed in this utility model.

[0019] Figure 5 This is a third exploded schematic diagram of the microfluidic nozzle with high-precision flow control proposed in this utility model.

[0020] Figure 6 The microfluidic nozzle with high-precision flow control proposed in this utility model Figure 2 Enlarged diagram of point A in the middle.

[0021] In the attached diagram: 1. Single-fluid nozzle body; 2. Connector; 3. Inner tube; 4. Fixing block; 5. Placement groove; 6. Groove; 7. Pressing block; 8. Mounting rod; 9. Container; 10. Movable plate; 11. Spring; 12. Fixing plate; 13. Fixing groove; 14. Groove opening; 15. Sealing ring; 16. Mounting base. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] The high-precision flow control microfluidic nozzle disclosed in this utility model is mainly applied to single-fluid nozzle scenarios.

[0024] Reference Figures 1 to 6 A high-precision flow control microfluidic nozzle includes: a single-fluid nozzle body 1, a connector 2 fixedly connected to the top of the single-fluid nozzle body 1, an inner tube 3 fixedly connected to the top of the connector 2, a mounting base 16 slidably connected to the outside of the inner tube 3, and a connecting component provided between the top of the connector 2 and the bottom of the mounting base 16, the connecting component being used to fix the connector 2.

[0025] The connecting component includes a fixing block 4, which is fixedly connected to the top of the connector 2 at equal intervals. The bottom of the mounting base 16 is provided with placement grooves 5 at equal intervals, and the outer side of the fixing block 4 is slidably connected to the inside of the placement groove 5.

[0026] The connecting assembly also includes a groove 6, which is equidistantly opened on the top of the mounting base 16. A pressing block 7 is slidably connected inside the groove 6. Two mounting rods 8 are fixedly connected to one side of the pressing block 7. A receiving groove 9 is opened on one side of the inner wall of the placement groove 5. One end of the mounting rod 8 extends into the receiving groove 9 and is fixedly connected to a movable plate 10. A spring 11 is provided on the outside of the mounting rod 8.

[0027] A fixed plate 12 is fixedly connected to the bottom of the movable plate 10. A fixed groove 13 is provided on one side of the fixed block 4. The top of the fixed plate 12 abuts against the top of the inner wall of the fixed groove 13.

[0028] The bottom of the fixing plate 12 is provided with a slope.

[0029] In the above technical solution, while the external threads on traditional single-fluid nozzles facilitate nozzle installation and fixation, they do have some drawbacks after prolonged use, particularly the potential for rust and disassembly at the external threads. Rust or corrosion can cause the connection between the external threads and the mounting base to become extremely tight, potentially making disassembly impossible. This can lead to difficulties when replacing or maintaining the nozzle, increasing maintenance costs and time. To address these issues, the specific operation is as follows: By setting a connecting component on the single-fluid nozzle body 1, when docking with the mounting base 16, first align the fixing block 4 with the placement groove 5, and the inner tube 3 with the inner wall of the mounting base 16. Then, insert the fixing block 4 into the placement groove 5, and the inner tube 3 into the mounting base 16. During this process, the edges of the fixing block 4 will contact the inclined surface of the fixing plate 12. Continuing to press the connector 2, the fixing block 4 will push the fixing plate 12 away, the mounting rod 8 will move in the receiving groove 9, the spring 11 will be compressed, and the pressing block 7 will move to the groove 6. In the process, the fixing plate 12 is misaligned with the fixing block 4, allowing the fixing block 4 to be fully inserted into the placement groove 5. The top of the connector 2 is in contact with the mounting base 16, at which point the fixing plate 12 aligns with the fixing groove 13. Under the rebound action of the spring 11, the fixing plate 12 is pushed into the fixing groove 13, and the top of the fixing plate 12 contacts the top of the inner wall of the fixing groove 13, thereby fixing the single-fluid nozzle body 1 to the bottom of the mounting base 16. When disassembly is required, simply press the pressing block 7 into the groove 6, and the mounting rod 8 will drive the movable plate 10 to move in the receiving groove 9 until the fixing plate 12 moves out of the fixing groove 13, at which point the single-fluid nozzle body 1 and connector 2 can be removed. The connection assembly simplifies the nozzle installation and disassembly process. Users can easily complete the fixing and disassembly of the nozzle by simply following the steps, reducing the complexity of the operation. By changing the connection method, the problem of external threads being exposed to the environment is avoided, thereby reducing the risk of rust and corrosion of parts and extending the service life of the device.

[0030] Reference Figures 1 to 6 In a preferred embodiment, both the top of the connector 2 and the bottom of the mounting base 16 are provided with slots 14, and a sealing ring 15 is provided inside the slots 14. The sealing ring 15 effectively increases the sealing performance of the connection between the connector 2 and the mounting base 16, effectively preventing fluid leakage, ensuring the normal operation of the system, and enhancing the overall reliability of the equipment.

[0031] Working principle: During use, when docking with the mounting base 16, first align the fixing block 4 with the placement groove 5, and the inner tube 3 with the inner wall of the mounting base 16. Then insert the fixing block 4 into the placement groove 5, and the inner tube 3 into the mounting base 16. During this process, the edges of the fixing block 4 will contact the inclined surface of the fixing plate 12. Continue to press the connector 2, and the fixing block 4 will push the fixing plate 12 away. The mounting rod 8 will move in the receiving groove 9, the spring 11 will be compressed, and the pressing block 7 will move into the groove 6 until the fixing plate 12 and the fixing block 4 are misaligned. The fixing block 4 can then be completely placed into the placement groove 5, and the top of the connector 2 will be aligned with the mounting base 16. 6. When the fixing plate 12 is aligned with the fixing groove 13, the fixing plate 12 is pushed into the fixing groove 13 by the rebound action of the spring 11. The top of the fixing plate 12 will contact the top of the inner wall of the fixing groove 13, thereby fixing the single-fluid nozzle body 1 to the bottom of the mounting base 16. When disassembly is required, simply press the pressing block 7 into the groove 6. The mounting rod 8 will drive the movable plate 10 to move in the receiving groove 9 until the fixing plate 12 moves out of the fixing groove 13. Then the single-fluid nozzle body 1 and the connector 2 can be removed. All contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. Microfluidic nozzle for high-precision flow control, comprising a single-fluid nozzle body (1), characterized in that, The top of the single-fluid nozzle body (1) is fixedly connected to a connector (2), the top of the connector (2) is fixedly connected to an inner tube (3), the outer side of the inner tube (3) is slidably connected to a mounting base (16), and a connecting component is provided between the top of the connector (2) and the bottom of the mounting base (16), the connecting component being used to fix the connector (2). The connecting assembly includes a fixing block (4), which is fixedly connected to the top of the connector (2) at equal intervals. The bottom of the mounting base (16) is provided with placement grooves (5) at equal intervals. The outer side of the fixing block (4) is slidably connected to the inside of the placement groove (5).

2. The high precision flow controlled microfluidic nozzle of claim 1, wherein, The connecting assembly also includes a groove (6), which is equidistantly opened on the top of the mounting base (16). A pressing block (7) is slidably connected inside the groove (6). Two mounting rods (8) are fixedly connected to one side of the pressing block (7). A receiving groove (9) is opened on one side of the inner wall of the placement groove (5). One end of the mounting rod (8) extends into the receiving groove (9) and is fixedly connected to a movable plate (10). A spring (11) is provided on the outside of the mounting rod (8).

3. The high precision flow controlled microfluidic nozzle of claim 2, wherein, The bottom of the movable plate (10) is fixedly connected to a fixing plate (12), and a fixing groove (13) is provided on one side of the fixing block (4). The top of the fixing plate (12) abuts against the top of the inner wall of the fixing groove (13).

4. The high precision flow controlled microfluidic nozzle of claim 3, wherein, The bottom of the fixing plate (12) is provided with a slope.

5. The high precision flow controlled microfluidic nozzle of claim 1, wherein, The top of the connector (2) and the bottom of the mounting base (16) are both provided with slots (14), and a sealing ring (15) is provided inside the slots (14).

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