Pilot-operated type electromagnetic valve
By designing a filter seat and filter in a pilot solenoid valve and filtering the fluid, the problem of impurities inside the fluid blocking the pilot hole in the prior art is solved, and the normal use and service life of the solenoid valve are achieved.
Patent Information
- Application Number
- CN202421534522.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-07-01
AI Technical Summary
The existing pilot solenoid valves cannot filter the fluid during fluid delivery, resulting in impurities inside the fluid that may block the pilot hole, affecting the normal use of the solenoid valve.
A pilot solenoid valve is designed, including a valve body and a filter. A filter seat is installed on the bottom side of the valve body. A water inlet hole and a filter are installed inside the filter seat. The filtered fluid is derived through the water filter hole, reducing the chance of the pilot hole being blocked.
By filtration of the fluid, the probability of the pilot hole inside the solenoid valve is reduced, the normal use of the solenoid valve is ensured, and the service life is extended.
Smart Images
Figure CN222669100U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pilot-operated solenoid valves, in particular to a pilot-operated solenoid valve. Background Art
[0002] The pilot solenoid valve is a commonly used type of solenoid valve. It is a system consisting of a main valve and a pilot valve. The main valve and the pilot valve are connected to each other through a connecting channel. The on / off of the main valve is controlled by electromagnetic force to control the switch of the pilot valve. When the coil of the solenoid valve is excited by current, the electromagnetic force attracts the valve core of the pilot valve to open, causing the pressure in the connecting channel to drop, which causes the valve core of the main valve to be affected by the pressure difference, thereby opening or closing the flow channel of the main valve. It is widely used in industrial automation control systems, such as hydraulic systems, pneumatic systems, liquid and gas flow control systems, etc.
[0003] The existing pilot solenoid valve cannot filter the fluid during fluid transportation, and impurities inside the fluid may clog the pilot hole, affecting the normal use of the solenoid valve. Therefore, we propose a pilot solenoid valve. Utility Model Content
[0004] The utility model aims to provide a pilot solenoid valve to achieve the effect of filtering the fluid, so as to solve the problem that the existing pilot solenoid valve cannot filter the fluid during fluid transportation, and impurities inside the fluid may block the pilot hole, affecting the normal use of the solenoid valve.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pilot solenoid valve, comprising a valve body and a filter, wherein a filter seat is installed on one side of the bottom of the valve body, a water inlet hole is provided in the middle of the filter seat, an observation window is provided on the front surface of the filter seat, a filter is installed inside the filter seat, a water filter hole is provided on one side of the filter seat, a sealing cover is sleeved on the bottom of the filter seat, a valve seat is installed on one side of the top of the valve body, a pilot seat is installed on one side of the top of the valve seat, an electromagnetic device is installed on one side of the pilot seat, a pilot column is installed in the middle of the pilot seat, and connecting plates are installed on both sides of the valve body.
[0006] Preferably, a slide rod is installed at the top of the valve seat, a diaphragm is installed on the outer surface of the slide rod, a plug is installed at the bottom of the diaphragm, and a spring B is installed at the gap between the diaphragm and the valve seat through a positioning groove.
[0007] Preferably, a partition is installed in the middle of the valve seat inside the valve body, and a guide hole is provided on the top of the partition at the blocking position.
[0008] Preferably, a spring groove is provided in the middle of the pilot seat, and the outer surface of the pilot column is located inside the spring groove and a spring A is installed through a spring seat.
[0009] Preferably, a spacer is installed inside the valve body at the filter seat position, a plug plate is plugged into the top of the spacer, a sealing gasket B is installed at the gap between the spacer and the plug plate, and sealing rubber balls are installed on both sides of the plug plate through a connecting frame.
[0010] Preferably, a connecting seat is installed on the outer surface of the valve body at the spacer position, a regulator is installed in the middle of the connecting seat, the regulator is sleeved inside the plug plate, the regulator and the plug plate are connected by threaded engagement, and a sealing gasket A is installed inside the connecting seat at the top of the plug plate.
[0011] Preferably, a pilot hole B is provided in the middle of the bottom of the pilot seat, and a pilot hole A is provided on one side of the outer surface of the pilot seat.
[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0013] 1. The utility model achieves the effect of filtering the fluid by arranging a filter seat and a filter. The filter seat is arranged on one side of the bottom of the valve body, and the filter is arranged inside the filter seat to solve the problem that the existing pilot solenoid valve cannot filter the fluid during fluid transportation, and impurities inside the fluid may clog the pilot hole, affecting the normal use of the solenoid valve. The probability of clogging the pilot hole inside the solenoid valve is reduced, thereby ensuring the normal use of the solenoid valve.
[0014] 2. The utility model achieves the effect of facilitating cleaning of the filter by arranging a spacer, a regulator, a sealing rubber ball and a plug-in plate. A spacer is arranged at the position of the filter seat inside the valve body, a plug-in plate is plugged into the top of the spacer, a sealing pad B is arranged at the gap between the spacer and the plug-in plate, and sealing rubber balls are arranged on both sides of the plug-in plate through a connecting frame to solve the problem that the existing filter screen is easily contaminated after long-term use, the filter cannot be cleaned, and the fluid filtering effect is affected, the probability of filter clogging is reduced, and the service life of the solenoid valve is extended. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;
[0016] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;
[0017] Figure 3 Based Figure 2 A is a schematic diagram of the enlarged structure;
[0018] Figure 4 Based Figure 2 B is a schematic diagram of the enlarged structure;
[0019] Figure 5Based Figure 2 The C enlarged structure diagram.
[0020] Figure numerals: 1. valve body; 2. connecting plate; 3. pilot seat; 4. solenoid; 5. valve seat; 6. regulator; 7. connecting seat; 8. observation window; 9. filter seat; 10. spring groove; 11. spring A; 12. pilot column; 13. partition seat; 14. partition; 15. sealing gasket A; 16. plug plate; 17. sealing gasket B; 18. cover; 19. water filter hole; 20. water inlet hole; 21. filter; 22. pilot hole A; 23. spring B; 24. slide rod; 25. diaphragm; 26. plug; 27. diversion hole; 28. pilot hole B; 29. sealing rubber ball. DETAILED DESCRIPTION
[0021] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0022] Embodiment 1
[0023] like Figure 1 , Figure 2 and Figure 4 As shown, in order to achieve the above purpose, the utility model provides the following technical solutions: a pilot solenoid valve, including a valve body 1 and a filter 21, a filter seat 9 is installed on one side of the bottom of the valve body 1, a water inlet hole 20 is arranged in the middle of the filter seat 9, an observation window 8 is arranged on the front surface of the filter seat 9, a filter 21 is installed inside the filter seat 9, and impurities in the fluid are filtered through the filter 21, a water filter hole 19 is arranged on one side of the filter seat 9, a cover 18 is sleeved on the bottom of the filter seat 9, a valve seat 5 is installed on one side of the top of the valve body 1, and the valve seat 5 A pilot seat 3 is installed on one side of the top, an electromagnetic device 4 is installed on one side of the pilot seat 3, a pilot column 12 is installed in the middle of the pilot seat 3, connecting plates 2 are installed on both sides of the valve body 1, a spring groove 10 is provided in the middle of the pilot seat 3, the outer surface of the pilot column 12 is located in the spring groove 10, and a spring A11 is installed inside the spring seat, and the pilot column 12 is driven by the spring A11 to move, and the pilot hole A22 and the pilot hole B28 are blocked, a pilot hole B28 is provided in the middle of the bottom of the pilot seat 3, and a pilot hole A22 is provided on one side of the outer surface of the pilot seat 3.
[0024] like Figure 1 , Figure 2 and Figure 5 As shown, a slide rod 24 is installed on the top of the valve seat 5, a diaphragm 25 is installed on the outer surface of the slide rod 24, a plug 26 is installed on the bottom of the diaphragm 25, a spring B23 is installed at the gap between the diaphragm 25 and the valve seat 5 through a positioning groove, a partition 14 is installed in the middle of the valve seat 5 inside the valve body 1, and a guide hole 27 is provided on the top of the partition 14 at the position of the plug 26.
[0025] The working principle of a pilot solenoid valve based on Example 1 is: after the utility model is installed, the fluid is transported to the inside of the filter 21 through the water inlet hole 20, the fluid is filtered by the filter 21, and the filtered fluid is guided to the partition 14 through the water filter hole 19, and the fluid is guided to the side of the pilot hole A22 through the partition 14. When the fluid needs to be transported, the pilot column 12 is adsorbed by the electromagnetic device 4, thereby driving the pilot column 12 to move upward, and then connecting the pilot hole A22 and the pilot hole B28, and guiding the fluid to one side of the inside of the valve body 1, and the diaphragm 25 is moved upward by the fluid pressure, thereby driving the plug 26 to move upward, and the fluid is guided out through the guide hole 27. At this point, the working process of this equipment is completed.
[0026] Embodiment 2
[0027] like Figure 2 and Figure 3 As shown, a pilot solenoid valve proposed by the utility model, compared with the first embodiment, this embodiment also includes: a partition seat 13 is installed at the position of the filter seat 9 inside the valve body 1, a plug plate 16 is inserted on the top of the partition seat 13, a sealing gasket B17 is installed at the gap between the partition seat 13 and the plug plate 16, sealing rubber balls 29 are installed on both sides of the plug plate 16 through a connecting frame, and the water inlet hole 20 and the water filter hole 19 are blocked by the set sealing rubber balls 29, a connecting seat 7 is installed on the outer surface of the valve body 1 at the position of the partition seat 13, a regulator 6 is installed in the middle of the connecting seat 7, the regulator 6 is sleeved inside the plug plate 16, the regulator 6 and the plug plate 16 are screwed together by threads, and the plug plate 16 is driven to move by the set regulator 6, and a sealing gasket A15 is installed at the top of the plug plate 16 inside the connecting seat 7.
[0028] In this embodiment, when it is observed that the filter 21 is dirty and needs to be cleaned, the regulator 6 is rotated to drive the plug plate 16 to move downward through the regulator 6, the plug plate 16 is inserted into the interior of the partition 13, and the sealing rubber ball 29 is moved to the inside of the water inlet hole 20 and the water filter hole 19, thereby blocking the water inlet hole 20 and the water filter hole 19, and the filter 21 can be disassembled and cleaned.
[0029] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.
Claims
1. A pilot-operated solenoid valve, comprising a valve body (1) and a filter (21), characterized in that: A filter seat (9) is installed on one side of the bottom of the valve body (1), a water inlet hole (20) is provided in the middle of the filter seat (9), an observation window (8) is provided on the front surface of the filter seat (9), a filter (21) is installed in the filter seat (9), a water filter hole (19) is provided on one side of the filter seat (9), a cover (18) is sleeved on the bottom of the filter seat (9), a valve seat (5) is installed on one side of the top of the valve body (1), a pilot seat (3) is installed on one side of the top of the valve seat (5), an electromagnetic device (4) is installed on one side of the pilot seat (3), a pilot column (12) is installed in the middle of the pilot seat (3), and connecting plates (2) are installed on both sides of the valve body (1).
2. A pilot-operated solenoid valve according to claim 1, characterized in that: A slide rod (24) is installed at the top of the valve seat (5), a diaphragm (25) is installed on the outer surface of the slide rod (24), a plug (26) is installed at the bottom of the diaphragm (25), and a spring B (23) is installed at the gap between the diaphragm (25) and the valve seat (5) through a positioning groove.
3. A pilot-operated solenoid valve according to claim 2, characterized in that: A partition plate (14) is installed in the middle of the valve seat (5) inside the valve body (1), and a guide hole (27) is provided at the top of the partition plate (14) at the blocking position (26).
4. The pilot-operated solenoid valve according to claim 1, characterized in that: A spring groove (10) is provided in the middle of the pilot seat (3), and a spring A (11) is installed on the outer surface of the pilot column (12) located inside the spring groove (10) via a spring seat.
5. The pilot-operated solenoid valve according to claim 1, characterized in that: A spacer seat (13) is installed inside the valve body (1) at the position of the filter seat (9), a plug plate (16) is plugged into the top of the spacer seat (13), a sealing gasket B (17) is installed at the gap between the spacer seat (13) and the plug plate (16), and sealing rubber balls (29) are installed on both sides of the plug plate (16) via a connecting frame.
6. A pilot-operated solenoid valve according to claim 5, characterized in that: A connecting seat (7) is installed on the outer surface of the valve body (1) at the position of the partition seat (13), a regulator (6) is installed in the middle of the connecting seat (7), the regulator (6) is sleeved inside the plug plate (16), the regulator (6) and the plug plate (16) are connected by screwing, and a sealing gasket A (15) is installed inside the connecting seat (7) at the top of the plug plate (16).
7. The pilot-operated solenoid valve according to claim 1, characterized in that: A pilot hole B (28) is provided in the middle of the bottom of the pilot seat (3), and a pilot hole A (22) is provided on one side of the outer surface of the pilot seat (3).