Multi-channel rotary valve device

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a multi-channel rotary valve device which comprises an n-shaped support base, a main valve body assembly fixedly installed on the n-shaped support base, a locking panel assembly fixed to the main valve body assembly, a rotor assembly rotationally connected between the main valve body assembly and the locking panel assembly, and a rotary valve assembly fixedly installed on the rotor assembly. The rotor assembly is in gear meshing transmission with a motor assembly fixed to the side face of the locking panel assembly through a large gear, the motor assembly is electrically connected with the PCB control panel, the PCB control panel controls the motor assembly to be started, the motor assembly drives the large gear to rotate, and the rotor assembly is driven to rotate. According to the technical scheme, the rotor assembly rotates to drive the channels in the rotor assembly to be in butt joint with different channels in the main valve body assembly, switching of the channels can be rapidly completed along with rotation of the rotor assembly, and therefore switching between flow channels is achieved, inlets and outlets of the channels are distributed in the bottom position of the main valve body assembly, connection and switching of different fluid paths are achieved, and the switching efficiency is improved. And cross contamination among the channels is avoided, so that the service life is greatly prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of valve technology, and in particular relates to a multi-channel rotary valve device. Background Technology

[0002] In medical pathology research and diagnosis, multi-channel rotary valves are widely used in many fluid control and transmission systems. Traditional multi-channel structures are relatively complex. When some high-viscosity liquids flow through the channels, they are prone to adhere to and accumulate on the channel walls, causing blockage. In addition, problems such as large size and insufficient angle control make it difficult to meet the needs of some application scenarios with strict space requirements and precise flow distribution or switching. For example, in the multi-solution flow system of miniaturized tissue dehydrators, existing multi-channel rotary valves cannot be well adapted, and cross-contamination between channels is easy, greatly shortening their service life. Utility Model Content

[0003] The purpose of this utility model is to provide a multi-channel rotary valve device to solve the problems in the prior art. The specific technical solution is as follows:

[0004] A multi-channel rotary valve device includes several bracket bases, on which a main valve body assembly is fixedly mounted. A locking panel assembly is fixedly mounted on the main valve body assembly. A rotor assembly is rotatably connected between the main valve body assembly and the locking panel assembly. The rotor assembly is driven by a large gear meshing with a motor assembly gear fixed to the side of the locking panel assembly. The motor assembly is electrically connected to a PCB control board.

[0005] Furthermore, the main valve body assembly includes a main valve body housing, which is fixedly mounted on a bracket base. A main channel hole is passed through the center of the main valve body housing, and the main channel hole is connected to the main quick connector installed at the bottom of the main valve body housing.

[0006] Furthermore, the main valve body shell is provided with 18 peripheral flow channel holes at equal intervals around its circumference. Among them, 14 peripheral flow channel holes penetrate the main valve body shell and correspond one-to-one with and are connected to 14 peripheral quick connectors installed at the bottom of the main valve body shell, and 4 peripheral flow channel holes correspond one-to-one with and are connected to 4 side flow channel holes provided on the side of the main valve body shell.

[0007] Furthermore, the rotor assembly includes a Teflon sealing ring, which rotates on the main valve body housing. The rotor body is fixed to the Teflon sealing ring, and the upper end of the rotor body is fixedly connected to a large gear.

[0008] Furthermore, the rotor body is provided with a connecting channel. One end of the connecting channel is provided with a plug, and the other end of the connecting channel is connected to the central docking hole located at the center of the Teflon sealing ring through the central flow channel. The central docking hole is connected to the main flow channel hole. The lower end of the connecting channel is provided with a bottom flow channel. The bottom flow channel is connected to the edge docking hole located at the edge of the Teflon sealing ring. The edge docking hole is connected to the surrounding flow channel hole.

[0009] Furthermore, a top cover is slidably connected to the rotor body, a spring column is provided between the rotor body and the top cover, a linear bearing is provided at the slidable connection between the rotor body and the top cover, a locking panel assembly is rotatably connected to the top cover, and a rotating shaft bearing is provided at the rotatable connection between the top cover and the locking panel assembly.

[0010] Furthermore, the locking panel assembly includes a locking panel, which is fixedly connected to the main valve body housing. The locking panel is rotatably connected to the upper cover via a rotating shaft bearing. A bracket 1 and a bracket 2 are fixedly fixed on both sides of the locking panel, and the bracket 2 is fixedly connected to the motor assembly.

[0011] Furthermore, the motor assembly includes a motor, which is fixed on the bracket two. The output end of the motor is connected to a pinion, and the pinion meshes with a large gear for transmission.

[0012] Furthermore, an angle sensor is fixed on the bracket, with the detection end of the angle sensor located inside the rotor body, and the angle sensor is electrically connected to the PCB control board.

[0013] Furthermore, two heating rods are installed inside the main valve body housing, and both heating rods are electrically connected to the PCB control board.

[0014] The advantages of this utility model are:

[0015] 1. The motor assembly is started by controlling the PCB control board. The motor assembly drives the large gear to rotate, which in turn drives the rotor assembly to rotate. The channels in the rotor assembly can connect with different channels in the main valve body assembly. As the rotor assembly rotates, the channels can be switched quickly, thereby realizing the switching between flow paths. The inlet and outlet of the channels are located at the bottom of the main valve body assembly, which realizes the connection and switching of different fluid paths. There is no cross-contamination between the channels, which greatly increases its service life.

[0016] 2. The overall structure is compact and miniaturized, making it easy to install and use in confined spaces.

[0017] 3. An angle sensor is connected to the rotation shaft of the rotor body to accurately monitor the rotation angle of the rotor body. The angle sensor transmits the real-time monitored angle information to the PCB control board. The PCB control board accurately controls the operation of the motor according to the preset angle parameters to ensure that the rotation angle of the rotary valve is accurate each time, thereby achieving the accuracy of channel switching. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0020] Figure 3 This is an exploded view of the overall structure of this utility model;

[0021] Figure 4 This is an exploded view of the rotor assembly structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the main valve body assembly structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the rotor body structure of this utility model. Figure 1 ;

[0024] Figure 7 This is a schematic diagram of the rotor body structure of this utility model. Figure 2 ;

[0025] Explanation of markings in the diagram:

[0026] PCB control board 1; bracket base 2; main valve body assembly 3; main valve body shell 301; main flow channel hole 302; peripheral flow channel hole 303; heating rod 304; side flow channel hole 305; main quick connector 306; peripheral quick connector 307; rotor assembly 4; Teflon sealing ring 401; rotor body 402; spring column 403; linear bearing 404; top cover 405; rotating shaft bearing 406; plug 407; connecting channel 408; center flow channel port 409; bottom flow channel port 410; center mating hole 411; edge mating hole 412; locking panel 5; bracket one 6; bracket two 7; large gear 8; angle sensor 9; small gear 10; motor 11. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Example 1

[0030] like Figure 1-7 As shown, a multi-channel rotary valve device includes a multi-type bracket base 2, a main valve body assembly 3 is fixedly installed on the multi-type bracket base 2, a locking panel assembly is fixedly installed on the main valve body assembly 3, a rotor assembly 4 is rotatably connected between the main valve body assembly 3 and the locking panel assembly, the rotor assembly 4 is driven by a large gear 8 meshing with a motor assembly fixed on the side of the locking panel assembly, and the motor assembly is electrically connected to the PCB control board 1.

[0031] The working principle of the above technical solution is as follows: The motor assembly is started by controlling the PCB control board 1. The motor assembly drives the large gear 8 to rotate, which in turn drives the rotor assembly 4 to rotate. The channels in the rotor assembly 4 can connect with different channels in the main valve body assembly 3. As the rotor assembly 4 rotates, the channel switching can be completed quickly, thereby realizing the switching between flow channels. The inlet and outlet of the channel are distributed at the bottom of the main valve body assembly 3, so as to realize the connection and switching of different fluid paths. There is no cross-contamination between the channels, which greatly increases its service life.

[0032] The multi-channel rotary valve device can be fixed at a preset position by using a bracket base 2. The lower end of the bracket base 2 has sufficient clearance to facilitate the connection of the lower end of the rotor assembly 4 to the pipeline.

[0033] The locking panel assembly can press the rotor assembly 4 tightly onto the main valve body assembly 3 to prevent the rotor assembly 4 from shifting vertically during rotation, which would cause leakage between the main valve body assembly 3 and the rotor assembly 4.

[0034] Example 2

[0035] like Figure 1-7 As shown, the main valve body assembly 3 includes a main valve body housing 301, which is fixedly mounted on a multi-type bracket base 2. A main channel hole 302 is passed through the center of the main valve body housing 301, and the main channel hole 302 is connected to the main quick connector 306 installed at the bottom of the main valve body housing 301.

[0036] The main valve body housing 301 is provided with 18 peripheral flow channel holes 303 at equal intervals around its circumference. Among them, 14 peripheral flow channel holes 303 penetrate the main valve body housing 301 and are connected to 14 peripheral quick connectors 307 installed at the bottom of the main valve body housing 301. The 4 peripheral flow channel holes 303 are connected to 4 side flow channel holes 305 provided on the side of the main valve body housing 301.

[0037] The rotor assembly 4 includes a Teflon sealing ring 401, which rotates on the main valve body housing 301. A rotor body 402 is fixed on the Teflon sealing ring 401, and the upper end of the rotor body 402 is fixedly connected to the large gear 8.

[0038] The rotor body 402 is provided with a connecting channel 408. One end of the connecting channel 408 is provided with a plug 407. The other end of the connecting channel 408 is connected to the central docking hole 411 located at the center of the Teflon sealing ring 401 through the central flow channel 409. The central docking hole 411 is connected to the main flow channel hole 302. The lower end of the connecting channel 408 is provided with a bottom flow channel 410. The bottom flow channel 410 is connected to the edge docking hole 412 located at the edge of the Teflon sealing ring 401. The edge docking hole 412 is connected to the peripheral flow channel hole 303.

[0039] The working principle of the above technical solution is as follows: The first liquid flow method is to connect 14 peripheral quick connectors 307 to 14 liquid inlet pipes respectively, 4 side flow channel holes 305 to 4 liquid inlet pipes respectively, 18 liquid inlet pipes to 18 kinds of liquids respectively, and the main quick connector 306 to the liquid outlet pipe.

[0040] When the edge docking hole 412 docks with one of the 14 peripheral flow channel holes 303, the liquid corresponding to the peripheral flow channel hole 303 flows into the corresponding peripheral quick connector 307 and peripheral flow channel hole 303 through the corresponding inlet pipe, enters the connecting channel 408 through the edge docking hole 412 and bottom flow channel 410, then flows into the center docking hole 411 through the center flow channel 409, then flows into the main quick connector 306 through the main flow channel hole 302, and flows out from the outlet pipe, thus completing the transfer of a liquid.

[0041] The motor assembly is started, which drives the large gear 8 to rotate, causing the rotor body 402 to rotate at a preset angle, which in turn drives the Teflon sealing ring 401 to rotate. This causes the edge docking hole 412 to rotate to a certain angle along with the Teflon sealing ring 401, so that the edge docking hole 412 aligns with another peripheral flow channel hole 303. The liquid corresponding to this peripheral flow channel hole 303 flows into the corresponding peripheral quick connector 307 and peripheral flow channel hole 303 through the corresponding inlet pipe, enters the connecting channel 408 through the edge docking hole 412 and the bottom flow channel 410, then flows into the center docking hole 411 through the center flow channel 409, and then flows into the main quick connector 306 through the main flow channel hole 302, and flows out from the outlet pipe, thus completing the transfer of another liquid.

[0042] When the edge docking hole 412 rotates to the peripheral flow channel hole 303 that communicates with the side flow channel hole 305, the liquid corresponding to the peripheral flow channel hole 303 flows into the side flow channel hole 305 through the corresponding inlet pipe, then into the corresponding peripheral flow channel hole 303, enters the connecting channel 408 through the edge docking hole 412 and the bottom flow channel port 410, then flows into the center docking hole 411 through the center flow channel port 409, then flows into the main quick connector 306 through the main flow channel hole 302, and flows out from the outlet pipe, thus completing the transfer of the corresponding liquid;

[0043] By continuously rotating the rotor body 402, the edge docking hole 412 corresponds to different peripheral flow channel holes 303, which can transmit the corresponding liquid and complete the multi-channel liquid transmission and collection. Different liquids are transmitted through the corresponding channels, and there is no cross-contamination between the channels, which greatly increases its service life.

[0044] The second liquid flow method involves connecting 14 peripheral quick connectors 307 to 14 liquid outlet pipes, connecting 4 side flow channel holes 305 to 4 liquid outlet pipes, and connecting the main quick connector 306 to the liquid inlet pipe.

[0045] When the edge docking hole 412 aligns with one of the 14 peripheral flow channel holes 303, liquid enters the main quick connector 306 through the inlet pipe, flows into the center docking hole 411 through the main flow channel hole 302, flows into the connecting channel 408 through the center flow channel port 409, flows into the corresponding peripheral flow channel hole 303 through the bottom flow channel port 410 and the edge docking hole 412, and then flows out from the outlet pipe through the peripheral quick connector 307 or the side flow channel hole 305.

[0046] By continuously rotating the rotor body 402, the liquid corresponding to the inlet pipe can be diverted and flowed out through multiple outlet pipes. Different diversion channels will not cross-contaminate each other, which greatly increases its service life.

[0047] In addition, the device is compact and does not take up much space. The liquid outlet or inlet pipe can be connected to the peripheral quick connector 307 at the bottom or the side flow channel hole 305 on the side, depending on actual needs. It is highly adaptable. The plug 407 can be removed to facilitate cleaning of the connection channel 408.

[0048] Example 3

[0049] like Figure 1-7 As shown, an upper cover 405 is slidably connected to the rotor body 402, a spring column 403 is provided between the rotor body 402 and the upper cover 405, a linear bearing 404 is provided at the slidable connection between the rotor body 402 and the upper cover 405, a locking panel assembly is rotatably connected to the upper cover 405, and a rotating shaft bearing 406 is provided at the rotatable connection between the upper cover 405 and the locking panel assembly.

[0050] The locking panel assembly includes a locking panel 5, which is fixedly connected to the main valve body housing 301. The locking panel 5 is rotatably connected to the upper cover 405 via a rotating shaft bearing 406. A bracket 6 and a bracket 7 are fixedly fixed on both sides of the locking panel 5, and the bracket 7 is fixedly connected to the motor assembly.

[0051] The motor assembly includes a motor 11, which is fixed on the bracket 7. The output end of the motor 11 is connected to a pinion 10, which meshes with a large gear 8 for transmission. The motor 11 is electrically connected to the PCB control board 1.

[0052] The working principle of the above technical solution is as follows: the motor 11 is started, which drives the small gear 10 to rotate, drives the large gear 8 to rotate, drives the rotor body 402 to rotate, drives the Teflon sealing ring 401 to rotate, and drives the edge docking hole 412 to dock with different peripheral flow channel holes 303, thereby completing the switching of liquid flow channels. The linear bearing 404 and the rotary shaft bearing 406 both play the role of reducing friction.

[0053] Under the elastic force of the spring column 403, the rotor body 402 and the Teflon sealing ring 401 are pressed tightly against the upper surface of the main valve body shell 301, reducing the possibility of leakage due to mechanical wear of the seals after long-term use.

[0054] Example 4

[0055] like Figure 1-7 As shown, an angle sensor 9 is fixed on the bracket 6. The detection end of the angle sensor 9 is located inside the rotor body 402. The angle sensor 9 is electrically connected to the PCB control board 1.

[0056] The working principle of the above technical solution is as follows: Angle sensor 9 is connected to the rotation shaft of rotor body 402 to accurately monitor the rotation angle of the rotation shaft of rotor body 402. Angle sensor 9 transmits the real-time monitored angle information to PCB control board. PCB control board 1 accurately controls the operation of motor 11 according to preset angle parameters to ensure that the rotation angle of rotary valve is accurate each time, thereby realizing the accuracy of channel switching.

[0057] Example 5

[0058] like Figure 1-7 As shown, two heating rods 304 are installed inside the main valve body housing 301, and both heating rods 304 are electrically connected to the PCB control board 1.

[0059] The working principle of the above technical solution is as follows: PCB control board 1 controls two heating rods 304 to heat the liquid being transported.

[0060] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A multi-pass rotary valve apparatus, characterized by, The utility model provides a kind of valve, including several bracket bases (2), several bracket bases (2) are fixedly installed with main valve body assembly (3), main valve body assembly (3) is fixed with locking panel assembly, main valve body assembly (3) is rotatably connected with rotor assembly (4) between locking panel assembly, rotor assembly (4) is driven with motor assembly gear meshing transmission by large gear (8) fixed in the side of locking panel assembly, motor assembly is electrically connected with PCB control panel (1).

2. A multi-pass rotary valve apparatus according to claim 1, wherein, The main valve body assembly (3) includes a main valve body shell (301), which is fixedly installed on the several bracket bases (2), and a main flow passage hole (302) is formed in the center of the main valve body shell (301). The main flow passage hole (302) is in communication with a main quick connector (306) installed at the bottom of the main valve body shell (301).

3. A multi-pass rotary valve apparatus according to claim 2, wherein, Eighteen circumferential flow passage holes (303) are circumferentially and equidistantly arranged on the main valve body shell (301). Among them, fourteen circumferential flow passage holes (303) penetrate through the main valve body shell (301) and are in one-to-one correspondence and communication with fourteen circumferential quick connectors (307) installed at the bottom of the main valve body shell (301). Four circumferential flow passage holes (303) are in one-to-one correspondence and communication with four side flow passage holes (305) arranged on the side of the main valve body shell (301).

4. A multi-pass rotary valve apparatus according to claim 3, wherein, The rotor assembly (4) includes a Teflon sealing ring (401) rotatably arranged on the main valve body shell (301). A rotor body (402) is fixedly arranged on the Teflon sealing ring (401). The upper end of the rotor body (402) is fixedly connected with the large gear (8).

5. A multi-pass rotary valve apparatus according to claim 4, wherein, The rotor body (402) is internally provided with a connecting channel (408). One end of the connecting channel (408) is provided with a plug (407). The other end of the connecting channel (408) is in communication with a center butt joint hole (411) arranged at the center position of the Teflon sealing ring (401) through a center flow passage (409). The center butt joint hole (411) is in communication with the main flow passage hole (302). The lower end of the connecting channel (408) is provided with a bottom flow passage (410). The bottom flow passage (410) is in communication with an edge butt joint hole (412) arranged at the edge position of the Teflon sealing ring (401) through the edge butt joint hole (412). The edge butt joint hole (412) is in communication with the circumferential flow passage hole (303).

6. A multi-pass rotary valve apparatus according to claim 5, wherein, The rotor body (402) is slidably connected with an upper cover (405). A spring column (403) is arranged between the rotor body (402) and the upper cover (405). A linear bearing (404) is arranged at the sliding connection position between the rotor body (402) and the upper cover (405). The upper cover (405) is rotatably connected with the locking panel assembly. A rotary shaft bearing (406) is arranged at the rotary connection position between the upper cover (405) and the locking panel assembly.

7. A multi-pass rotary valve apparatus according to claim 6, wherein, The locking panel assembly includes a locking panel (5) fixedly connected with the main valve body shell (301). The locking panel (5) is rotatably connected with the upper cover (405) through the rotary shaft bearing (406). The locking panel (5) is fixedly provided with a bracket one (6) and a bracket two (7) on both sides. The bracket two (7) is fixedly connected with the motor assembly.

8. A multi-pass rotary valve apparatus according to claim 7, wherein, The motor assembly comprises a motor (11), the motor (11) is fixed on the support two (7), the motor (11) output end is connected with pinion (10), pinion (10) and gear wheel (8) gear meshing transmission.

9. A multi-pass rotary valve apparatus according to claim 8, wherein, The support one (6) is fixed with angle sensor (9), the detection end of angle sensor (9) is located in rotor main body (402), and angle sensor (9) is electrically connected with PCB control panel (1).

10. A multi-pass rotary valve apparatus as claimed in claim 3, wherein, Two heating rods (304) are installed in the main valve body shell (301), and the two heating rods (304) are electrically connected with the PCB control panel (1).

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