Lifting type check valve with window
By installing a double-layer assembly, a cleaning assembly, and a filter assembly on the viewing window of the lift-type check valve, the problem of dirt obstructing the view of the viewing window is solved, achieving clear observation and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU JIULONG VALVE MFG
- Filing Date
- 2025-06-23
- Publication Date
- 2026-04-28
AI Technical Summary
The existing lift check valve lacks a cleaning mechanism, which causes the viewing window surface to become stained with dirt and water, affecting the accurate observation of the valve's working status.
The viewing window features a dual-layer assembly, a cleaning assembly, and a filter assembly. The dual-layer assembly enhances protection, the cleaning assembly removes dirt using a cleaning rod and a cleaning brush, and the filter assembly blocks impurities through a filter screen within vent holes.
Ensure clear observation through the viewing window to improve the accuracy of valve operation status judgment, and extend service life and safety.
Smart Images

Figure CN224174645U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of check valve technology, specifically a lift-type check valve with a viewing window. Background Technology
[0002] A patent document with publication number CN222526961U discloses a lift-type check valve, including an inlet pipe and an outlet pipe disposed on one side of the inlet pipe. A valve pipe assembly is fixedly connected between the inlet and outlet pipes for connecting them. A shut-off component is disposed inside the valve pipe assembly. The device connects the inlet and outlet pipes to corresponding positions. When controlling the water flow, the valve is first rotated, which drives the shaft to rotate. The rack and pinion controls the lifting position of the connecting plate, thereby controlling the position of the shut-off component. When rotated clockwise, the shut-off component moves upward, thereby opening the valve to release water. When rotated counterclockwise, the shut-off component is pushed down, thereby blocking the water flow. During the downward process, the magnetic strip moves closer to the adsorption tank and is attracted. When it is about to approach, the spring pulls down to quickly close it. Using the above structure, the flow rate can be controlled while the valve is quickly closed.
[0003] However, in actual use, it was found that some equipment lacks a cleaning mechanism for the viewing window. During long-term use, the surface of the viewing window is easily contaminated with dirt, water stains, or deposits caused by the characteristics of the medium. These impurities can obstruct the view, making it impossible for operators to clearly observe the situation inside the valve and affecting the accurate judgment of the valve's working status.
[0004] Therefore, this utility model proposes a lift-type check valve with a viewing window to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a lift-type check valve with a viewing window to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a lift-type check valve with a viewing window, comprising a valve body, a valve, a connector, and a viewing window, wherein the valve is fixedly installed at the top of the valve body, the connector is installed at both ends of the valve body, and the viewing window is installed at the bottom end of the valve.
[0007] The viewing window is provided with a double-layer component, a cleaning component, and a filter component. The double-layer component is disposed on the viewing window, the cleaning component is disposed inside the double-layer component, and the filter component is disposed at the bottom of the double-layer component.
[0008] Preferably, the first viewing window in the double-layer component is fixedly mounted on the first fixing plate, and the first fixing plate is fixedly mounted at the bottom of the viewing window.
[0009] Preferably, the second viewing window in the dual-layer assembly is adapted to be snapped onto the first fixing plate and the second fixing plate, with the second fixing plate fixedly disposed at the top of the viewing window.
[0010] Preferably, a handle is fixedly provided on the outside of the second viewing window in the double-layer assembly, and a rotating groove is provided on the first fixing plate and the second fixing plate, and the second viewing window is engaged in the rotating groove.
[0011] Preferably, the cleaning rod in the cleaning assembly is fixedly disposed inside the second viewing window, and a cleaning brush is evenly disposed on one end of the cleaning rod.
[0012] Preferably, the air vents in the filter assembly are evenly arranged on the second fixed plate, and a filter is fixedly disposed in the air vents.
[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: By setting a double-layer component, a cleaning component, and a filter component on the viewing window, a good usage effect is achieved. The double-layer component enhances the protective performance of the viewing window and improves its durability. The rotatable design of the second viewing window, combined with the outer handle, allows operators to flexibly adjust the viewing angle. The cleaning rod and cleaning brush in the cleaning component can quickly remove stains, water stains, and attachments from the surface of the viewing window, ensuring a clear line of sight and enabling operators to accurately judge the working status of the valve. The filter component effectively discharges water vapor and blocks impurities through the filter in the vent hole, preventing them from adhering to the viewing window and further ensuring the cleanliness of the viewing window. This provides convenience for the operation, management, and maintenance of valves in the fluid transportation system, improving work efficiency and safety. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the double-layer component structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the cleaning component mechanism of this utility model;
[0017] Figure 4 This is a schematic diagram of the filter assembly structure of this utility model.
[0018] In the diagram: Valve body 1, Valve 2, Connector 3, Viewing window 4, Double-layer assembly 5, Cleaning assembly 6, Filter assembly 7, First viewing window 501, First fixed plate 502, Second viewing window 503, Second fixed plate 504, Rotating groove 505, Handle 506, Cleaning rod 601, Cleaning brush 602, Vent hole 701, Filter 702. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of this utility model, not all embodiments, and are merely used to explain the embodiments of this utility model. They are not intended to limit 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. The technical solutions in the embodiments of this utility model will be clearly and completely described below.
[0020] Example 1: Please refer to Figures 1 to 2 A lift-type check valve with a viewing window includes a valve body 1, a valve 2, a connector 3, and a viewing window 4. The valve 2 is fixedly installed at the top of the valve body 1, the connector 3 is installed at both ends of the valve body 1, and the viewing window 4 is installed at the bottom end of the valve 2. A double-layer assembly 5, a cleaning assembly 6, and a filter assembly 7 are installed on the viewing window 4. The double-layer assembly 5 is installed on the viewing window 4, the cleaning assembly 6 is installed inside the double-layer assembly 5, and the filter assembly 7 is installed at the bottom end of the double-layer assembly 5.
[0021] The first viewing window 501 in the double-layer component 5 is fixedly mounted on the first fixed plate 502, and the first fixed plate 502 is fixedly mounted at the bottom of the viewing window 4.
[0022] In use, valve body 1 is connected to the pipeline system through connector 3. The medium flows through the inside of valve body 1. Valve 2 controls the unidirectional flow of the medium. The viewing window 4 facilitates observation of the internal condition of the valve. The first viewing window 501 in the double-layer assembly 5 is fixed on the first fixed plate 502. The first fixed plate 502 is connected to the bottom of the viewing window 4, which enhances the structural strength and protection of the viewing window 4, extends the service life of the viewing window 4, and provides a stable and reliable window for observing the internal condition of the valve.
[0023] Example 2: Based on Example 1, please refer to... Figures 2 to 3 The second viewing window 503 in the double-layer component 5 is adapted to be snapped onto the first fixing plate 502 and the second fixing plate 504, and the second fixing plate 504 is fixedly installed on the top of the viewing window 4.
[0024] A handle 506 is fixedly provided on the outside of the second viewing window 503 in the double-layer component 5. A rotating groove 505 is provided on the first fixing plate 502 and the second fixing plate 504, and the second viewing window 503 is snapped into the rotating groove 505.
[0025] In use, the second viewing window 503 is snapped between the first fixed plate 502 and the second fixed plate 504. The second fixed plate 504 is fixed to the top of the viewing window 4. The operator can hold the handle 506 and rotate the second viewing window 503 along the rotating groove 505 to adjust to a suitable viewing angle. This allows for easy viewing of the flow of the medium inside the valve and the working status of the valve disc from different angles, avoiding unclear observation due to limited viewing angle and improving the flexibility and convenience of observation.
[0026] Example 3: Based on Example 2, please refer to... Figures 3 to 4 The cleaning rod 601 in the cleaning component 6 is fixedly installed inside the second viewing window 503, and a cleaning brush 602 is evenly provided on one end of the cleaning rod 601.
[0027] The air vents 701 in the filter assembly 7 are evenly arranged on the second fixed plate 504, and the filter 702 is fixedly installed in the air vents 701.
[0028] When in use, if stains or water stains appear on the surface of the viewing window 4 and affect observation, rotate the second viewing window 503. The cleaning rod 601 and cleaning brush 602 on the inner side will move accordingly. The cleaning brush 602 can effectively remove the adhering substances on the surface of the viewing window 4. At the same time, the filter screen 702 in the vent hole 701 on the second fixed plate 504 can block impurities from entering while ensuring gas flow, preventing impurities from adhering to the viewing window 4, keeping the viewing window 4 clean, and ensuring that the operator can always clearly observe the state inside the valve.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A lift check valve with a viewing window, comprising a valve body (1), a valve (2), a connector (3), and a viewing window (4), wherein the valve (2) is fixedly disposed at the top of the valve body (1), the connector (3) is disposed at both ends of the valve body (1), and the viewing window (4) is disposed at the bottom end of the valve (2); Its features are: It includes a double-layer component (5), a cleaning component (6), and a filter component (7). The double-layer component (5) is disposed on the viewing window (4), the cleaning component (6) is disposed inside the double-layer component (5), and the filter component (7) is disposed at the bottom of the double-layer component (5).
2. The lift-type check valve with a viewing window according to claim 1, characterized in that: The first viewing window (501) in the double-layer component (5) is fixedly mounted on the first fixed plate (502), and the first fixed plate (502) is fixedly mounted at the bottom of the viewing window (4).
3. The lift-type check valve with a viewing window according to claim 2, characterized in that: The second viewing window (503) in the double-layer component (5) is adapted to be snapped onto the first fixing plate (502) and the second fixing plate (504), and the second fixing plate (504) is fixedly disposed on the top of the viewing window (4).
4. A lift-type check valve with a viewing window according to claim 3, characterized in that: A handle (506) is fixedly provided on the outside of the second viewing window (503) in the double-layer component (5). A rotating groove (505) is provided on the first fixing plate (502) and the second fixing plate (504). The second viewing window (503) is snapped into the rotating groove (505).
5. A lift-type check valve with a viewing window according to claim 1, characterized in that: The cleaning rod (601) in the cleaning assembly (6) is fixedly installed inside the second viewing window (503), and a cleaning brush (602) is evenly provided on one end of the cleaning rod (601).
6. A lift-type check valve with a viewing window according to claim 1, characterized in that: The air vents (701) in the filter assembly (7) are evenly arranged on the second fixed plate (504), and a filter (702) is fixedly arranged in the air vents (701).
Citation Information
Patent Citations
Lift check valve
CN222526961U