Multi-liquid-path control module
By using a modular design and integrating a multi-fluid control module with a drive motor and reduction gear set, the problem of cumbersome pipeline connections in traditional fluid control modules is solved, achieving efficient and precise fluid control and equipment miniaturization.
Patent Information
- Application Number
- CN202520174945.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-26
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-26
AI Technical Summary
Traditional hydraulic control modules involve cumbersome pipe connections and pose a risk of connection errors, which affects control accuracy.
The modular multi-fluid control module connects the plunger pump module and the distribution valve module with bolts, and integrates the drive motor, reduction gear set and encoder to achieve precise control and efficient assembly.
It improves the convenience of pipeline connection and control precision, avoids the cumbersome process and error risk of pipeline connection in traditional modules, and the overall equipment is smaller and more applicable.
Smart Images
Figure CN223594351U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to liquid path control field especially relates to a kind of multi-liquid path control module. BACKGROUND
[0002] Multi-liquid path control refers to the technology for accurately controlling and managing multiple liquid flow channels. It is widely used in many fields, such as biomedical science, chemical engineering, and microfluidic chips.
[0003] In the field of biomedical science, multi-liquid path control can be used for cell culture and drug delivery, accurately controlling the flow rate, pressure, and flow direction of different nutrient solutions and drugs, providing a suitable environment for cells or achieving precise drug delivery. In chemical engineering, it can be used for multi-component chemical reactions, accurately controlling the flow rate and mixing ratio of reactants in each liquid path to improve reaction efficiency and product quality. In microfluidic chips, multi-liquid path control can achieve sample separation and detection, accurately controlling small volumes of liquid through microchannel networks and various control elements such as valves and pumps, with advantages such as high efficiency, miniaturization, and integration.
[0004] However, in actual use, traditional liquid path control modules often use pipes to connect pumps and valves, making the pipe connection process cumbersome. In addition, the numerous pipes also have the risk of connection errors during manual connection, affecting the control accuracy of multi-liquid path control. Therefore, a multi-liquid path control module is proposed to solve the above problems. UTILITY MODEL CONTENT
[0005] To overcome the above shortcomings, the utility model provides a multi-liquid path control module to improve the problem of traditional liquid path control modules using pipes to connect pumps and valves, making the pipe connection process cumbersome.
[0006] To achieve the above purpose, the utility model adopts the following technical scheme: a multi-liquid path control module includes a plunger pump module and a distribution valve module. The plunger pump module is fixedly connected to the distribution valve module on the right side through bolts. The plunger pump module left side and the distribution valve module upper end are both fixedly connected to the shell. The shell is internally provided with a speed reduction mechanism. The plunger pump module right end is fixedly connected to an internal passage. The internal passage end away from the plunger pump module is fixedly connected to a distribution assembly.
[0007] The speed reduction mechanism includes a drive motor, a speed reduction gear set connected to the upper part of the drive motor, an encoder fixedly connected to the end of the gear set away from the drive motor, and a transmission member fixedly connected to the encoder lower end output shaft.
[0008] Further description of the above technical scheme:
[0009] The plunger pump module has a pump body inside, and the right side of the pump body is connected to an internal channel. The distribution valve module has a valve body inside.
[0010] As a further description of the above technical solution:
[0011] The upper end of the distribution component is inserted into the internal transmission component of the distribution valve module, and the outer side of the outer shell is fixedly connected to the distribution valve module and the plunger pump module respectively by bolts.
[0012] As a further description of the above technical solution:
[0013] The plunger pump module has multiple sets of threaded slots on its outer side, and the distribution valve module has multiple sets of threaded slots on its outer side.
[0014] As a further description of the above technical solution:
[0015] The outer surface of the drive motor is fixedly connected to the housing, and the outer surface of the reduction gear set is rotatably connected to the housing through bearings. The reduction gear set includes multiple sets of gears and helical gears.
[0016] As a further description of the above technical solution:
[0017] An encoder mounting slot is fixedly connected to the outer side of the housing.
[0018] As a further description of the above technical solution:
[0019] The lower part of the valve body is connected to the distribution assembly, and the lower part of the distribution valve module is fixedly connected to the distribution assembly.
[0020] As a further description of the above technical solution:
[0021] The transmission component can be replaced with a lead screw or an optical shaft depending on whether it is inside the plunger pump module or the distribution valve module. The optical shaft has a rectangular protrusion at its lower part.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, by modularly integrating the plunger pump and the distribution valve, the two can be assembled by bolts during installation. After the assembly is completed, the internal channel on the outside of the plunger pump will be directly connected to the distribution component below the distribution valve, and the two can be sealed. This means that when the device is modularly combined, there is no need to use a lot of extra pipelines, thereby improving the convenience of connection between the pump and the valve.
[0024] 2. In this utility model, the drive motor controls the operation of the reduction gear set and provides power to the pump body and valve body. At the same time, during the operation of the reduction gear set, the encoder will record the rotation angle of the transmission component in real time and send it to the drive motor for feedback control, thereby making the integrated reduction mechanism of this device highly accurate.
[0025] 3. In this utility model, the drive motor, reduction gear set, encoder and other components are integrated and replaced by the traditional stepper motor under the drive of the servo program. This avoids the step loss phenomenon that may occur in the transmission fluid circuit control module due to the use of stepper motor. At the same time, the integrated design also makes the overall size of the device smaller and more applicable. Attached Figure Description
[0026] Figure 1 This is an overall schematic diagram of a multi-fluid channel control module proposed in this utility model;
[0027] Figure 2 This is a schematic diagram of the internal components of a multi-fluid channel control module proposed in this utility model;
[0028] Figure 3 This is a schematic diagram of the deceleration mechanism of a multi-fluid path control module proposed in this utility model;
[0029] Figure 4 This is a schematic diagram of the connection between the distribution valve module and the plunger pump module of a multi-fluid control module proposed in this utility model.
[0030] Legend:
[0031] 1. Piston pump module; 2. Encoder mounting slot; 3. Housing; 4. Distribution valve module; 5. Reduction mechanism; 6. Pump body; 7. Valve body; 8. Internal channel; 9. Distribution assembly; 501. Reduction gear set; 502. Drive motor; 503. Transmission component; 504. Encoder. Detailed Implementation
[0032] 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.
[0033] Reference Figure 1 , Figure 2 as well as Figure 4An embodiment of this utility model is provided: a multi-fluid control module, including a plunger pump module 1 and a distribution valve module 4. The distribution valve module 4 is fixedly connected to the right side of the plunger pump module 1 by bolts. The left side of the plunger pump module 1 and the upper end of the distribution valve module 4 are both fixedly connected to the outer shell 3. The inner shell 3 is provided with a deceleration mechanism 5. The right end of the plunger pump module 1 is fixedly connected to an internal channel 8. The end of the internal channel 8 away from the plunger pump module 1 is fixedly connected to a distribution component 9.
[0034] The reduction mechanism 5 includes a drive motor 502. A reduction gear set 501 is connected to the upper part of the drive motor 502. An encoder 504 is fixedly connected to the end of the reduction gear set 501 away from the drive motor 502. The encoder 504 is connected to the drive motor 502 through a cable, so that the feedback signal can be transmitted to the drive motor 502 and feedback control is performed on it. A transmission component 503 is fixedly connected to the lower output shaft of the encoder 504.
[0035] The plunger pump module 1 houses a pump body 6, with an internal channel 8 connected to its right side. This internal channel 8 transfers the liquid inside the pump body 6 to the distribution valve module 4. Therefore, during maintenance, the device can be quickly disassembled and installed by twisting the bolts. The distribution valve module 4 houses a valve body 7. The upper end of the distribution assembly 9 is inserted into the internal transmission component 503 of the distribution valve module 4. This transmission component 503 transmits the motion from the reduction gear set 501 to the pump body 6 or the valve body 7. The outer casing 3 is fixed to the distribution valve module 4 and the plunger pump module 1 respectively by bolts. The plunger pump module 1 and the distribution valve module 4 are connected with multiple sets of threaded slots on their outer sides. The outer side of the housing 3 is fixedly connected to the encoder mounting slot 2. The lower part of the valve body 7 is connected to the distribution component 9. The lower part of the distribution valve module 4 is fixedly connected to the distribution component 9. The transmission component 503 can be replaced with a lead screw or an optical shaft depending on the different locations inside the plunger pump module 1 and the distribution valve module 4. That is, the distribution valve module 4 uses an optical shaft with a rectangular protrusion at the bottom to drive the valve body 7 to rotate. The plunger pump module 1 uses a lead screw as a transmission to drive the plunger to move and pump out fluid.
[0036] Reference Figure 3 The outer surface of the drive motor 502 is fixedly connected to the housing 3, and the outer surface of the reduction gear set 501 is rotatably connected to the housing 3 through bearings. The reduction gear set 501 includes multiple sets of gears and helical gears. The contact area between the helical gears inside the reduction gear set 501 is larger than that of ordinary gears, thus maintaining stability during transmission.
[0037] Working principle: When using this device, the plunger pump module 1 and the distribution valve module 4 need to be quickly connected by bolts. After the connection is completed, the whole device is driven by the drive motor 502. The output shaft of the drive motor 502 drives the reduction gear set 501 to rotate at a reduced speed. The output shaft of the reduction gear set 501 then drives the transmission component 503 to rotate. The rotation of the transmission component 503 will drive the distribution component 9 to operate. At the same time, the encoder 504 will record and feed back the rotation angle of the transmission component 503 to the drive motor 502 in real time for feedback control. This allows the drive motor 502 to make precise adjustments based on the feedback from the encoder 504, thereby ensuring that the rotation angle and speed of the transmission component 503 can be precisely controlled.
[0038] The rotation of the transmission component 503 further drives the valve body 7 inside the distribution valve module 4 to switch on / off or regulate the flow. At the same time, the pump body 6 inside the plunger pump module 1, driven by the drive motor 502, delivers the liquid to the distribution component 9 through the internal channel 8. The distribution component 9 then distributes the liquid to different liquid paths according to the on / off or regulation state of the valve body 7, thereby achieving precise control and management of multiple liquid flow channels.
[0039] Furthermore, since the transmission component 503 can be replaced with a lead screw or a shaft depending on the different options inside the plunger pump module 1 and the distribution valve module 4, different transmission methods can be selected according to actual needs, thus improving the applicability and flexibility of this device.
[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multi-fluid control module, comprising a plunger pump module (1) and a distribution valve module (4), characterized in that: The right side of the plunger pump module (1) is fixedly connected to the distribution valve module (4) by bolts. The left side of the plunger pump module (1) and the upper end of the distribution valve module (4) are both fixedly connected to the outer shell (3). The inner part of the outer shell (3) is provided with a deceleration mechanism (5). The right end of the plunger pump module (1) is fixedly connected to the internal channel (8). The end of the internal channel (8) away from the plunger pump module (1) is fixedly connected to the distribution component (9). The reduction mechanism (5) includes a drive motor (502), a reduction gear set (501) is connected to the upper part of the drive motor (502), an encoder (504) is fixedly connected to the end of the gear set (501) away from the drive motor (502), and a transmission component (503) is fixedly connected to the lower output shaft of the encoder (504).
2. The multi-fluid channel control module according to claim 1, characterized in that: The plunger pump module (1) has a pump body (6) inside, and the right side of the pump body (6) is connected to an internal channel (8). The distribution valve module (4) has a valve body (7) inside.
3. The multi-fluid channel control module according to claim 1, characterized in that: The upper end of the distribution component (9) is inserted into the internal transmission component (503) of the distribution valve module (4), and the outer side of the outer shell (3) is fixedly connected to the distribution valve module (4) and the plunger pump module (1) respectively by bolts.
4. The multi-fluid channel control module according to claim 1, characterized in that: The plunger pump module (1) has multiple sets of threaded slots on its outer side, and the distribution valve module (4) has multiple sets of threaded slots on its outer side.
5. The multi-fluid channel control module according to claim 1, characterized in that: The outer surface of the drive motor (502) is fixedly connected to the housing (3), and the outer surface of the reduction gear set (501) is rotatably connected to the housing (3) through bearings. The reduction gear set (501) includes multiple sets of gears and helical gears.
6. The multi-fluid channel control module according to claim 1, characterized in that: An encoder mounting slot (2) is fixedly connected to the outer side of the housing (3).
7. The multi-fluid channel control module according to claim 2, characterized in that: The lower part of the valve body (7) is connected to the distribution component (9), and the lower part of the distribution valve module (4) is fixedly connected to the distribution component (9).
8. The multi-fluid channel control module according to claim 1, characterized in that: The transmission component (503) can be replaced by a lead screw or an optical shaft depending on the different components inside the plunger pump module (1) and the distribution valve module (4), and the optical shaft has a rectangular protrusion at the lower part.