Novel electromagnetic drive rotary valve
By designing an electromagnetically driven rotary valve and utilizing components such as magnets and crossed roller bearings to achieve sealing, the problem of external leakage of media in rotary valves in solid material conveying systems is solved, and the sealing performance is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI JUJIAN INTELLIGENT CONTROL TECHNOLOGY CO LTD
- Filing Date
- 2025-04-12
- Publication Date
- 2026-04-24
AI Technical Summary
In existing rotary valves used in solid material conveying systems, it is difficult to achieve zero leakage through the sliding seal between the valve body and the valve seat, resulting in a high risk of external media leakage.
The novel rotary valve design employs electromagnetic drive and includes components such as valve core, switching screw, turbine, worm gear, internal and external magnets, and crossed roller bearings. It achieves sealing through the interaction of magnets, reducing media leakage.
It effectively reduces the risk of media leakage and improves the sealing performance of the rotary valve.
Smart Images

Figure CN224162099U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of control valve technology, specifically a novel electromagnetically driven rotary valve. Background Technology
[0002] Rotary valves are specialized devices used in solid material (powder, granular materials, powder-granular mixtures) conveying systems for unloading, packaging, mixing, dust removal, metering, and quantitative conveying. Their working principle involves a motor and reducer driving an impeller with a bisecting structure to rotate within the housing. Material from the upper hopper or feeding device fills the impeller's cavity, and as the impeller rotates, it is discharged from the lower part of the housing. This allows for uniform and continuous downstream unloading according to the requirements of the conveying system. However, the valve body and seat seal is a sliding seal, and using packing makes it difficult to achieve zero leakage. Summary of the Invention
[0003] The technical problem solved by this utility model is to provide a novel electromagnetically driven rotary valve to address the issues raised in the background section.
[0004] The technical problem solved by this utility model is achieved by the following technical solution: A novel electromagnetically driven rotary valve includes: a valve body, a valve core disposed within the valve body, the valve core being mounted within the valve body via a valve seat, a conversion screw disposed at the upper end of the valve core, a lower valve cylinder disposed outside the conversion screw, a turbine disposed at the upper end of the conversion screw, a worm gear disposed on one side of the turbine, the worm gear being rotatably mounted on a transmission housing, an inner magnet disposed at the outer end of the worm gear, an inner isolation sleeve disposed outside the inner magnet, an outer magnet disposed outside the inner isolation sleeve, an outer isolation sleeve disposed on the outer magnet, the outer side of the outer isolation sleeve being mounted on a control handwheel, and a crossed roller bearing disposed between the outer isolation sleeve and the transmission housing.
[0005] Furthermore, a bushing I is provided between the valve body and the lower valve cylinder, and the bushing I is installed in the valve body mounting groove on the valve body.
[0006] Furthermore, the worm gear is mounted on the transmission housing via an angular contact bearing, and a fixed cylinder and bushing II are provided between the worm gear and the transmission housing.
[0007] Furthermore, the valve body has an inlet at one end and an outlet at the other end, and a valve body connecting flange is provided on the inlet and outlet, and the valve body connecting flange is provided with several bolt mounting holes.
[0008] Furthermore, the lower valve cylinder is provided with valve cylinder connecting flanges at both ends. The lower end of the transmission housing is installed on the valve cylinder connecting flange at the upper end of the lower valve cylinder by fixing bolts, and the valve cylinder connecting flange at the lower end of the lower valve cylinder is installed on the valve body by fixing bolts.
[0009] Furthermore, valve body connecting seats are provided at both ends of the valve body, and the valve body connecting seats are provided with several connecting bolt holes. The valve body connecting flange is installed on the valve body connecting seat by fixing bolts.
[0010] Compared with the prior art, the advantages of this utility model are: this utility model does not affect the opening and closing of the valve, effectively reduces the risk of media leakage, and has excellent practical performance. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model.
[0012] Figure 2 This is a schematic diagram of the front view of this utility model.
[0013] Figure 3 for Figure 2 A schematic diagram of the AA-direction cross-section.
[0014] Figure 4 This is a schematic diagram of the right side view of this utility model.
[0015] Figure 5 for Figure 4 A schematic diagram of the BB-direction cross-section.
[0016] Figure 6 for Figure 4 A schematic diagram of the CC-direction cross-section. Detailed Implementation
[0017] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection between the internal parts of two components. Example
[0018] like Figures 1-6As shown, a novel electromagnetically driven rotary valve includes: a valve body 1, a valve core 2 housed within the valve body 1, the valve core 2 being mounted within the valve body 1 via a valve seat 5, a switching screw 3 at the upper end of the valve core 2, a lower valve cylinder 6 located outside the switching screw 3, a turbine 8 at the upper end of the switching screw 3, a worm gear 7 on one side of the turbine 8, the worm gear 7 being rotatably mounted on a transmission housing 9, an inner magnet 10 at the outer end of the worm gear 7, an inner isolation sleeve 11 located outside the inner magnet 10, an outer magnet 12 located outside the inner isolation sleeve 11, an outer isolation sleeve 14 located on the outer magnet 12, the outer side of the outer isolation sleeve 14 being mounted on a control handwheel 13, and a crossed roller bearing 15 located between the outer isolation sleeve 14 and the transmission housing 9. A bushing I17 is provided between the valve body 1 and the lower valve cylinder 6, and the bushing I17 is mounted in a valve body mounting groove on the valve body 1. Example
[0019] like Figures 1-6 As shown, a novel electromagnetically driven rotary valve includes: a valve body 1, a valve core 2 inside the valve body 1, the valve core 2 being mounted inside the valve body 1 via a valve seat 5, a switching screw 3 at the upper end of the valve core 2, a lower valve cylinder 6 on the outer side of the switching screw 3, a turbine 8 at the upper end of the switching screw 3, a worm gear 7 on one side of the turbine 8, the worm gear 7 being rotatably mounted on a transmission housing 9, an inner magnet 10 at the outer end of the worm gear 7, an inner isolation sleeve 11 on the outer side of the inner magnet 10, an outer magnet 12 on the outer side of the inner isolation sleeve 11, an outer isolation sleeve 14 on the outer magnet 12, an outer isolation sleeve 14 mounted on a control handwheel 13, and a crossed roller bearing 15 between the outer isolation sleeve 14 and the transmission housing 9. The worm gear 7 is mounted on the transmission housing 9 via an angular contact bearing 16, and a fixed cylinder 18 and a bushing 19 are provided between the worm gear 7 and the transmission housing 9. Example
[0020] like Figures 1-6 As shown, a novel electromagnetically driven rotary valve includes: a valve body 1, a valve core 2 inside the valve body 1, the valve core 2 being mounted inside the valve body 1 via a valve seat 5, a switching screw 3 at the upper end of the valve core 2, a lower valve cylinder 6 outside the switching screw 3, a turbine 8 at the upper end of the switching screw 3, a worm gear 7 on one side of the turbine 8, the worm gear 7 being rotatably mounted on a transmission housing 9, an inner magnet 10 at the outer end of the worm gear 7, an inner isolation sleeve 11 outside the inner magnet 10, an outer magnet 12 outside the inner isolation sleeve 11, an outer isolation sleeve 14 on the outer magnet 12, a control handwheel 13 mounted on the outer side of the outer isolation sleeve 14, and a crossed roller bearing 15 between the outer isolation sleeve 14 and the transmission housing 9. The valve body 1 has an inlet at one end and an outlet at the other end, with a valve body connecting flange 4 on both the inlet and outlet, and several bolt mounting holes on the valve body connecting flange 4. Example
[0021] like Figures 1-6 As shown, a novel electromagnetically driven rotary valve includes: a valve body 1, a valve core 2 inside the valve body 1, the valve core 2 being mounted inside the valve body 1 via a valve seat 5, a switching screw 3 at the upper end of the valve core 2, a lower valve cylinder 6 outside the switching screw 3, a turbine 8 at the upper end of the switching screw 3, a worm gear 7 on one side of the turbine 8, the worm gear 7 being rotatably mounted on a transmission housing 9, an inner magnet 10 at the outer end of the worm gear 7, an inner isolation sleeve 11 outside the inner magnet 10, an outer magnet 12 outside the inner isolation sleeve 11, an outer isolation sleeve 14 on the outer magnet 12, a control handwheel 13 mounted on the outer side of the outer isolation sleeve 14, and a crossed roller bearing 15 between the outer isolation sleeve 14 and the transmission housing 9. The lower valve cylinder 6 has valve cylinder connecting flanges at both ends, the lower end of the transmission housing 9 is mounted on the valve cylinder connecting flange at the upper end of the lower valve cylinder 6 via fixing bolts, and the valve cylinder connecting flange at the lower end of the lower valve cylinder 6 is mounted on the valve body 1 via fixing bolts. Example
[0022] like Figures 1-6 As shown, a novel electromagnetically driven rotary valve includes: a valve body 1, a valve core 2 inside the valve body 1, the valve core 2 being mounted inside the valve body 1 via a valve seat 5, a switching screw 3 at the upper end of the valve core 2, a lower valve cylinder 6 outside the switching screw 3, a turbine 8 at the upper end of the switching screw 3, a worm gear 7 on one side of the turbine 8, the worm gear 7 being rotatably mounted on a transmission housing 9, an inner magnet 10 at the outer end of the worm gear 7, an inner isolation sleeve 11 outside the inner magnet 10, an outer magnet 12 outside the inner isolation sleeve 11, an outer isolation sleeve 14 on the outer magnet 12, a control handwheel 13 mounted on the outer side of the outer isolation sleeve 14, and a crossed roller bearing 15 between the outer isolation sleeve 14 and the transmission housing 9. Valve body connecting seats are located at both ends of the valve body 1, each valve body connecting seat having several connecting bolt holes, and a valve body connecting flange 4 being mounted on the valve body connecting seat via fixing bolts.
[0023] The rod 7 of this utility model is provided with an inner magnet 10 at its outer end. An inner isolation sleeve 11 is provided on the outer side of the inner magnet 10. An outer magnet 12 is provided on the outer side of the inner isolation sleeve 11. An outer isolation sleeve 14 is provided on the outer magnet 12. The outer side of the outer isolation sleeve 14 is mounted on the control handwheel 13. A cross roller bearing 15 is provided between the outer isolation sleeve 14 and the transmission housing 9. This utility model does not affect the opening and closing of the valve, effectively reduces the risk of media leakage, and has excellent practical performance.
[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A novel electromagnetically driven rotary valve, comprising: A valve body (1) is provided with a valve core (2) inside the valve body (1). The valve core (2) is installed inside the valve body (1) through a valve seat (5). A conversion screw (3) is provided at the upper end of the valve core (2). A lower valve cylinder (6) is provided on the outer side of the conversion screw (3). A turbine (8) is provided at the upper end of the conversion screw (3). A worm gear (7) is provided on one side of the turbine (8). The worm gear (7) is rotatably installed on a transmission housing (9). An inner magnet (10) is provided at the outer end of the worm gear (7). An inner isolation sleeve (11) is provided on the outer side of the inner magnet (10). An outer magnet (12) is provided on the outer side of the inner isolation sleeve (11). An outer isolation sleeve (14) is provided on the outer side of the outer isolation sleeve (14). A cross roller bearing (15) is provided between the outer isolation sleeve (14) and the transmission housing (9).
2. The novel electromagnetically driven rotary valve according to claim 1, characterized in that: A bushing I (17) is provided between the valve body (1) and the lower valve cylinder (6), and the bushing I (17) is installed in the valve body mounting groove on the valve body (1).
3. A novel electromagnetically driven rotary valve according to claim 1, characterized in that: The worm (7) is mounted on the transmission housing (9) via an angular contact bearing (16), and a fixed cylinder (18) and bushing II (19) are provided between the worm (7) and the transmission housing (9).
4. A novel electromagnetically driven rotary valve according to claim 1, characterized in that: The valve body (1) has an inlet at one end and an outlet at the other end. The inlet and outlet are provided with valve body connecting flanges (4), and the valve body connecting flanges (4) are provided with several bolt mounting holes.
5. A novel electromagnetically driven rotary valve according to claim 1, characterized in that: The lower valve cylinder (6) is provided with valve cylinder connecting flanges at both ends. The lower end of the transmission housing (9) is installed on the valve cylinder connecting flange at the upper end of the lower valve cylinder (6) by fixing bolts. The valve cylinder connecting flange at the lower end of the lower valve cylinder (6) is installed on the valve body (1) by fixing bolts.
6. A novel electromagnetically driven rotary valve according to claim 1, characterized in that: The valve body (1) is provided with valve body connecting seats at both ends. The valve body connecting seats are provided with several connecting bolt holes. The valve body connecting flange (4) is installed on the valve body connecting seat by fixing bolts.