Filter valve
By designing a removable filter assembly and return spring mechanism in the filter valve, the problem of difficulty in cleaning and blocking of the filter screen in the prior art is solved, and efficient maintenance of the filter valve and extended service life are achieved.
Patent Information
- Application Number
- CN202420627532.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-03-28
AI Technical Summary
It is difficult to clean the filter screen with existing filter valves. The impurities filtered after long-term use will clog the filter screen, resulting in poor pipelines.
A filter valve is designed including a valve body, an upper seat and a lower valve body. By providing a detachable filter assembly on the valve body, staff can regularly repair and replace the filter net, and realize the valve through a return spring and control rod. The core opening and closing control ensures the filtering effect.
Through the removable filter assembly and return spring mechanism, the maintenance and repair of the filter valve is simplified, the problem of impurities is avoided, and the service life of the equipment is extended.
Smart Images
Figure CN222296975U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of valves and relates to a valve, in particular to a filter valve. Background Art
[0002] A filter valve, also known as a strainer, is a device that performs pre-filtration treatment. It's essential for hydraulic control valves and other precision, easily clogged mechanical products. It's an essential component of pipelines used to transport media, typically installed at the inlet of hydraulic control valves, pressure reducing valves, pressure relief valves, and constant-level valves. It removes impurities from the media, preventing particulate matter from entering the channel and causing blockage, thereby protecting equipment and piping components from wear and clogging. Current filter valves are difficult to clean, and after prolonged use, filtered impurities can clog the filter, causing pipe obstructions. Summary of the Invention
[0003] The purpose of the utility model is to address the above-mentioned problems existing in the prior art and to provide a filter valve with reasonable design, simple structure and good filtering effect.
[0004] The objectives of the utility model can be achieved through the following technical solutions: a filter valve, comprising a valve body, characterized in that the valve body is composed of an upper mounting seat and a lower valve body, an inlet pipe and a water outlet pipe are arranged in the lower valve body, a valve core is arranged in the lower valve body, a valve stem is arranged in the lower valve body, and the other end of the valve stem is abutted against the valve core, a control rod for controlling the opening and closing of the valve body is provided on the upper mounting seat, the valve stem is controlled by the control rod to control the valve core to control the internal pipe of the lower valve body, a slot is provided on the lower valve body, a filter assembly is provided on the lower valve body and at a position relative to the slot, the filter assembly comprises a mounting seat and a filter cartridge, the mounting seat is detachably fixedly connected to the lower valve body, one end of the filter cartridge is fixedly mounted on the mounting seat, and the upper end portion of the filter cartridge abuts against the lower valve body.
[0005] In the above-mentioned filter valve, a partition plate is fixedly arranged between the upper mounting seat and the lower valve body, and the upper mounting seat is detachably fixed to the lower valve body by fixing bolts. A reset spring 1 for controlling the control rod to reset is arranged in the upper mounting seat, and a reset spring 2 for controlling the valve rod to reset is sleeved on the valve stem.
[0006] In the above-mentioned filter valve, a through hole for liquid circulation is provided in the valve body at a position relative to the filter assembly, and the diameter of the through hole is smaller than the diameter of the filter cartridge.
[0007] In the above-mentioned filter valve, a fixing seat is provided on the lower valve body and at a position relative to the valve core.
[0008] Compared with the prior art, the filter valve has a filter assembly that is detachably fixed on the valve body, making it easier for staff to regularly repair and replace the filter assembly. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a structural diagram of the present utility model.
[0010] Figure 2 It is a schematic cross-sectional structural diagram of the present utility model.
[0011] In the figure, 1. Valve body; 2. Upper mounting seat; 3. Lower valve body; 4. Water inlet pipe; 5. Water outlet pipe; 6. Valve core; 7. Valve stem; 8. Control lever; 9. Filter assembly; 10. Mounting seat; 11. Filter cartridge; 12. Partition plate; 13. Return spring 1; 14. Return spring 2; 15. Fixed seat. DETAILED DESCRIPTION
[0012] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
[0013] like Figure 1 、 Figure 2 As shown, the filter valve includes a valve body 1. The lower valve body 3 is a normally closed valve. When the lower valve body 3 is required to work, pressure is applied to the control rod 8 to move the valve stem 7 downward, thereby moving the valve core 6 downward, and the valve can be opened. When the pressure on the control rod 8 is canceled, the reset spring rebounds and resets the valve stem 7. The valve body 1 is composed of an upper mounting seat 2 and a lower valve body 3. An inlet pipe 4 and an outlet pipe 5 are provided in the lower valve body 3. A valve core 6 is provided in the lower valve body 3. A valve stem 7 is provided in the lower valve body 3, and the other end of the valve stem 7 is connected to the valve core 6. The upper mounting seat 2 is provided with a control rod 8 for controlling the opening and closing of the valve body 1, and the valve stem 7 is controlled by the control rod 8 to control the valve core 6 to control the internal pipeline of the lower valve body 3. The lower valve body 3 is provided with a slot, and a filter assembly 9 is provided on the lower valve body 3 at a position relative to the slot. The filter assembly 9 includes a mounting seat 10 and a filter cartridge 11. The mounting seat 10 is detachably fixedly connected to the lower valve body 3, and one end of the filter cartridge 11 is fixedly mounted on the mounting seat 10, and the upper end portion of the filter cartridge 11 is against the lower valve body 3.
[0014] To further detail, when the valve is open, liquid flows from the water inlet pipe 4, then passes through and is filtered by the filter assembly 9, applying pressure to the control rod 8. This compresses the return spring 13, causing the control rod 8 to move downward. One end of the control rod 8 contacts the valve stem 7, pressing the valve stem 7 downward. This compresses the return spring 2 14. Since the valve stem 7 is connected to the valve core 6, this in turn drives the valve core 6 downward, opening the pipe within the lower valve body 3. Liquid then flows out of the water outlet pipe 5 through the pipe inside the lower valve body 3. When the pressure on the control rod 8 is removed, the return spring 13 rebounds, resetting the control rod 8. Since the pressure applied by the control rod 8 on the valve stem 7 is removed, the valve stem 7 also returns to its original position, and the valve core 6 returns to its initial position, closing the valve body 1.
[0015] To be more specific, a partition plate 12 is fixedly installed between the upper mounting seat 2 and the lower valve body 3. The upper mounting seat 2 is detachably fixed to the lower valve body 3 by fixing bolts. A reset spring 13 for controlling the control rod 8 to reset is provided in the upper mounting seat 2, and a reset spring 2 14 for controlling the valve stem 7 to reset is provided on the valve stem 7.
[0016] In further detail, a through hole for liquid circulation is provided in the valve body 1 at a position relative to the filter assembly 9 , and the diameter of the through hole is smaller than the diameter of the filter cartridge 11 .
[0017] In further detail, a fixing seat 15 is provided on the lower valve body 3 and relative to the valve core 6. The setting of the fixing seat 15 facilitates the staff to regularly maintain the interior of the valve body 1.
[0018] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.
[0019] Although this document frequently uses terms such as valve body 1, upper mounting seat 2, lower valve body 3, water inlet pipe 4, water outlet pipe 5, valve core 6, valve stem 7, control rod 8, filter assembly 9, mounting seat 10, filter cartridge 11, partition plate 12, return spring 1 13, return spring 2 14, and fixing seat 15, the use of other terms is not excluded. These terms are used solely to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.
Claims
1. A filter valve, comprising a valve body (1), characterized in that: The valve body (1) is composed of an upper mounting seat (2) and a lower valve body (3); a water inlet pipe (4) and a water outlet pipe (5) are arranged in the lower valve body (3); a valve core (6) is arranged in the lower valve body (3); a valve stem (7) is arranged in the lower valve body (3), and the other end of the valve stem (7) abuts against the valve core (6); a control rod (8) for controlling the opening and closing of the valve body (1) is arranged on the upper mounting seat (2); the valve stem (7) is controlled by the control rod (8) to control the valve body (1) The core (6) controls the internal pipeline of the lower valve body (3); the lower valve body (3) is provided with a slot; a filter assembly (9) is provided on the lower valve body (3) at a position relative to the slot; the filter assembly (9) comprises a mounting seat (10) and a filter cartridge (11); the mounting seat (10) is detachably fixedly connected to the lower valve body (3); one end of the filter cartridge (11) is fixedly mounted on the mounting seat (10); and the upper end of the filter cartridge (11) abuts against the lower valve body (3).
2. A filter valve according to claim 1, characterized in that: A partition plate (12) is fixedly arranged between the upper mounting seat (2) and the lower valve body (3); the upper mounting seat (2) is detachably fixedly mounted on the lower valve body (3) by means of fixing bolts; a first return spring (13) for controlling the control rod (8) to be reset is arranged in the upper mounting seat (2); and a second return spring (14) for controlling the valve rod (7) to be reset is sleeved on the valve stem (7).
3. A filter valve according to claim 1, characterized in that: A through hole for liquid circulation is provided in the valve body (1) at a position relative to the filter assembly (9), and the diameter of the through hole is smaller than the diameter of the filter cartridge (11).
4. A filter valve according to claim 1, characterized in that: A fixing seat (15) is provided on the lower valve body (3) at a position relative to the valve core (6).