Fluid control electromagnetic valve
By introducing annular seals and sealing ring designs into the fluid control solenoid valve, the problem of water penetration is solved, the sealing performance is enhanced, and the service life of the solenoid valve is extended.
Patent Information
- Application Number
- CN202422647584.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Existing fluid control solenoid valves have air gaps in their magnetic circuit design, which makes it easy for water to penetrate the fluid path, affecting the sealing performance, and further causing the iron core to rust and accumulate debris, shortening the service life of the solenoid valve.
The annular seal and sealing ring design are adopted. The cooperation between the annular sealing block and the sealing layer and the annular sealing groove enhances the sealing between the valve core and the circular plate. The connecting rod is sealed by the sealing ring to prevent water from penetrating around the iron core.
The sealing performance of the valve core during movement is improved, water penetration is avoided, and the service life of the electromagnet and the solenoid valve is extended.
Smart Images
Figure CN223360060U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of solenoid valves, in particular to a fluid control solenoid valve. Background Art
[0002] Fluid control solenoid valves are widely used in industrial control systems. For example, the water circuit solenoid valves in water purifiers require a compact structure and flexible operation. Some existing fluid control solenoid valves primarily consist of an electromagnetic power unit and a fluid flow path. The solenoid valve core consists of two cylindrical cores, with a telescopic spring positioned between them. When forming a magnetic circuit, the magnetic lines of force pass through the yoke, upper core, and lower core to form a loop.
[0003] However, this structure has multiple air gaps in the magnetic circuit design, which makes it easy for water in the fluid path to penetrate into the area around the iron core through the air gaps, resulting in a lack of good sealing between the fluid valve core and the solenoid valve core in the fluid path. Over time, this causes the iron core to rust and debris to accumulate in the iron core gaps, which affects the overall service life of the electromagnet and the solenoid valve. Utility Model Content
[0004] The present invention aims to solve the problems in the existing technology and provides a fluid control solenoid valve. The specific technical solution is as follows:
[0005] A fluid control solenoid valve comprises a pipeline and an electromagnetic control component for liquid circulation inside the pipeline, the electromagnetic control component comprises a solenoid valve part and a valve core, the pipeline is connected with a liquid inlet pipe and a liquid outlet pipe, the pipeline is provided with a liquid passage cavity which is respectively connected with the water outlet end of the liquid inlet pipe and the water inlet end of the liquid outlet pipe, the valve core is located in the liquid passage cavity, the solenoid valve part drives the valve core close to or away from the water outlet end of the liquid inlet pipe by controlling the connecting rod, a circular plate is connected between the solenoid valve part and the pipeline, the connecting rod passes through a through hole provided on the circular plate, a sealing ring adapted to the connecting rod is provided in the through hole, a sealing sleeve is provided on the outside of the valve core, and an annular sealing member is provided on the side of the sealing sleeve close to the circular plate, when the control valve core is away from the water outlet end of the liquid inlet pipe to circulate the liquid in the liquid passage cavity, the valve core can conflict with the circular plate through the annular sealing member.
[0006] As an improvement to the above technical solution: an annular block is provided inside the liquid passage cavity, and the outer side wall of the sealing sleeve is in contact with the inner side wall of the annular block.
[0007] As an improvement of the above technical solution: the annular seal includes an annular sealing block connected to the side of the sealing sleeve close to the circular plate, the surface of the annular sealing block is connected to a sealing layer, and the circular plate is provided with an annular sealing groove adapted to the sealing layer.
[0008] As an improvement of the above technical solution: the solenoid valve part includes a valve body, a coil frame, a coil and an iron core, the coil is wound on the coil frame, the coil frame is installed in the valve body, the iron core is inserted in the inner center of the coil frame, one end of the iron core is connected to the valve body through a spring, and the other end of the iron core is connected to a connecting rod, and one end of the connecting rod passes through the valve body and the circular plate in sequence and then connects to the valve core.
[0009] As an improvement of the above technical solution: a liquid inlet cavity is provided inside the liquid inlet pipe, one end of the liquid inlet cavity is connected to the water inlet end of the liquid inlet pipe, and the other end of the liquid inlet cavity is connected to the water outlet end of the liquid inlet cavity; a liquid outlet cavity is provided inside the liquid outlet pipe, one end of the liquid outlet cavity is connected to the water inlet end of the liquid outlet pipe, and the other end of the liquid outlet cavity is connected to the water outlet end of the liquid outlet cavity.
[0010] Beneficial effects of the utility model:
[0011] When water flows into the liquid cavity from the water inlet end of the liquid inlet pipe, the solenoid valve part is operated to keep the valve core away from the liquid inlet pipe, allowing the water to flow out through the water outlet end of the liquid outlet pipe. When the valve core is away from the liquid inlet pipe, the valve core can drive the annular sealing block and the sealing layer on the sealing sleeve into the annular sealing groove, thereby sealing the connection between the sealing sleeve and the circular plate, improving the isolation and sealing performance between the pipeline and the valve body when the valve core is active, and then the connecting rod is sealed by the sealing ring during activity, preventing water from penetrating into the area around the iron core when flowing through the liquid cavity, and not causing obstruction and malfunction of the action, thereby greatly extending the service life of the electromagnet and the solenoid valve as a whole. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0013] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at A in the middle;
[0014] Figure 3 for Figure 1 Schematic diagram of the enlarged structure at point B in the middle.
[0015] Figure numerals: 1, pipeline; 100, liquid cavity; 2, liquid inlet pipe; 200, liquid inlet cavity; 3, liquid outlet pipe; 300, liquid outlet cavity; 4, annular block; 5, valve core; 51, sealing sleeve; 511, annular sealing block; 512, sealing layer; 6, circular plate; 60, through hole; 61, sealing ring; 62, annular sealing groove; 7, valve body; 8, coil frame; 9, coil; 10, iron core; 11, spring; 12, connecting rod. DETAILED DESCRIPTION
[0016] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0017] Example
[0018] A fluid control solenoid valve, please refer to Figure 1-Figure 3 , including a pipeline 1 and an electromagnetic control component for liquid circulation inside the pipeline 1, the electromagnetic control component includes a solenoid valve part and a valve core 5, the pipeline 1 is connected to a liquid inlet pipe 2 and a liquid outlet pipe 3, and a liquid passage cavity 100 is provided inside the pipeline 1, which is respectively connected to the water outlet end of the liquid inlet pipe 2 and the water inlet end of the liquid outlet pipe 3, and the valve core 5 is located in the liquid passage cavity 100, and the solenoid valve part drives the valve core 5 close to or away from the water outlet end of the liquid inlet pipe 2 by controlling the connecting rod 12, and a circular plate 6 is connected between the solenoid valve part and the pipeline 1, and the connecting rod 12 passes through a through hole 60 provided on the circular plate 6, and a sealing ring 61 adapted to the connecting rod 12 is provided in the through hole 60, and a sealing sleeve 51 is provided on the outside of the valve core 5, and a ring-shaped sealing member is provided on the side of the sealing sleeve 51 close to the circular plate 6. When the control valve core 5 is away from the water outlet end of the liquid inlet pipe 2 to circulate liquid in the liquid passage cavity 100, the valve core 5 can conflict with the circular plate 6 through the ring-shaped sealing member.
[0019] In an optional embodiment: an annular block 4 is provided inside the liquid passage cavity 100, and the outer wall of the sealing sleeve 51 contacts the inner wall of the annular block 4. The sealing sleeve 51 in the liquid passage cavity 100 is surrounded on the inner side of the annular block 4, which can effectively prevent the water in the liquid passage cavity 100 from overflowing from other areas in the pipeline 1.
[0020] In an optional embodiment: the annular seal includes an annular sealing block 511 connected to the side of the sealing sleeve 51 close to the circular plate 6, the surface of the annular sealing block 511 is connected to the sealing layer 512, and the circular plate 6 is provided with an annular sealing groove 62 adapted to the sealing layer 512. The annular sealing block 511 can be inserted into the annular sealing groove 62 to seal the connection between the sealing sleeve 51 and the circular plate 6.
[0021] In an optional embodiment: the solenoid valve part includes a valve body 7, a coil frame 8, a coil 9 and an iron core 10, the coil 9 is wound on the coil frame 8, the coil frame 8 is installed in the valve body 7, the iron core 10 is inserted in the inner center of the coil frame 8, one end of the iron core 10 is connected to the valve body 7 through a spring 11, and the other end of the iron core 10 is connected to a connecting rod 12, one end of the connecting rod 12 passes through the valve body 7 and the circular plate 6 in sequence and is connected to the valve core 5. When the solenoid valve part is energized, it can drive the iron core 10 upward and drive the valve core 5 away from the liquid inlet pipe 2. When the power is off, the iron core 10 is reset by the spring 11 to seal the water outlet end of the liquid inlet pipe 2 to control the circulation of the liquid inside the pipeline 1. This is a prior art and will not be repeated in this application.
[0022] In an optional embodiment: a liquid inlet cavity 200 is provided inside the liquid inlet pipe 2, one end of the liquid inlet cavity 200 is connected to the water inlet end of the liquid inlet pipe 2, and the other end of the liquid inlet cavity 200 is connected to the water outlet end of the liquid inlet cavity 200; a liquid outlet cavity 300 is provided inside the liquid outlet pipe 3, one end of the liquid outlet cavity 300 is connected to the water inlet end of the liquid outlet pipe 3, and the other end of the liquid outlet cavity 300 is connected to the water outlet end of the liquid outlet cavity 300.
[0023] Specifically, water flows into the liquid passage cavity 100 from the water inlet end of the liquid inlet pipe 2, and the valve core 5 is moved away from the liquid inlet pipe 2 by operating the solenoid valve part, allowing the water to flow out through the water outlet end of the liquid outlet pipe 3. When the valve core 5 is away from the liquid inlet pipe 2, the valve core 5 can drive the annular sealing block 511 and the sealing layer 512 on the sealing sleeve 51 to enter the annular sealing groove 62, thereby sealing the connection between the sealing sleeve 51 and the circular plate 6, improving the isolation and sealing between the pipeline 1 and the valve body 7 when the valve core 5 is active, and then the connecting rod 12 is sealed by the sealing ring 61 when it is active, so as to prevent the water from penetrating into the surrounding area of the iron core when flowing through the liquid passage cavity 100, and will not cause the action to be blocked and malfunction, thereby greatly extending the service life of the electromagnet and the solenoid valve as a whole.
[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A fluid control solenoid valve, comprising a pipeline (1) and an electromagnetic control assembly for circulating liquid inside the pipeline (1), the electromagnetic control assembly comprising a solenoid valve portion and a valve core (5), the pipeline (1) being connected to a liquid inlet pipe (2) and a liquid outlet pipe (3), the pipeline (1) being provided with a liquid passage cavity (100) connected to the water outlet end of the liquid inlet pipe (2) and the water inlet end of the liquid outlet pipe (3), respectively, the valve core (5) being located in the liquid passage cavity (100), the solenoid valve portion driving the valve core (5) to approach or move away from the water outlet end of the liquid inlet pipe (2) by controlling a connecting rod (12), and characterized in that: A circular plate (6) is connected between the solenoid valve portion and the pipeline (1); the connecting rod (12) passes through a through hole (60) provided on the circular plate (6); a sealing ring (61) adapted to the connecting rod (12) is provided in the through hole (60); a sealing sleeve (51) is provided on the outer side of the valve core (5); and an annular sealing member is provided on the side of the sealing sleeve (51) close to the circular plate (6); when the control valve core (5) is away from the water outlet end of the liquid inlet pipe (2) to allow liquid to flow into the liquid cavity (100), the valve core (5) can come into contact with the circular plate (6) through the annular sealing member.
2. A fluid control solenoid valve according to claim 1, characterized in that: An annular block (4) is provided inside the liquid passage cavity (100), and the outer wall of the sealing sleeve (51) is in contact with the inner wall of the annular block (4).
3. A fluid control solenoid valve according to claim 2, characterized in that: The annular seal comprises an annular sealing block (511) connected to a side of the sealing sleeve (51) close to the circular plate (6); a sealing layer (512) is connected to the surface of the annular sealing block (511); and an annular sealing groove (62) adapted to the sealing layer (512) is provided on the circular plate (6).
4. A fluid control solenoid valve according to claim 3, characterized in that: The solenoid valve portion includes a valve body (7), a coil frame (8), a coil (9) and an iron core (10), wherein the coil (9) is wound on the coil frame (8), the coil frame (8) is installed in the valve body (7), and the iron core (10) is inserted in the inner center of the coil frame (8), one end of the iron core (10) is connected to the valve body (7) through a spring (11), and the other end of the iron core (10) is connected to a connecting rod (12), and one end of the connecting rod (12) passes through the valve body (7) and the circular plate (6) in sequence and is connected to the valve core (5).
5. The fluid control solenoid valve according to claim 4, characterized in that: A liquid inlet cavity (200) is provided inside the liquid inlet pipe (2), one end of the liquid inlet cavity (200) is connected to the water inlet end of the liquid inlet pipe (2), and the other end of the liquid inlet cavity (200) is connected to the water outlet end of the liquid inlet cavity (200); a liquid outlet cavity (300) is provided inside the liquid outlet pipe (3), one end of the liquid outlet cavity (300) is connected to the water inlet end of the liquid outlet pipe (3), and the other end of the liquid outlet cavity (300) is connected to the water outlet end of the liquid outlet cavity (300).