A filter screen structure convenient to dismount for marine valve

Abstract

The utility model relates to the field of marine valve, disclose a filter screen structure for marine valve convenient to dismount, including pipeline ball valve, pipeline ball valve outer wall is provided with quick detach mechanism and adaptation current mechanism, pipeline ball valve outer wall fixedly connected with the outer tube of water inlet pipe, the inner surface fixedly connected with filter screen surface scraper of water inlet pipe outer tube, the inner wall fixedly connected with filter screen insertion pipe of water inlet pipe outer tube, the inner wall of filter screen insertion pipe is opened sliding slot, the inner wall of filter screen insertion pipe is opened locking slot, the inner surface sliding connection of locking slot has the push -out board. The utility model discloses through the sliding fit of filter screen insertion pipe and filter screen pipe body in quick detach mechanism, let the dismounting of filter screen not need to rely on the tool, only needs the manual operation of operating personnel to can dismantle or install filter screen, and in the process of dismounting, through the effect of filter screen surface scraper, can carry out simple cleaning to the outer surface of filter screen when dismounting.

Description

Technical Field

[0001] This utility model relates to the field of marine valves, and in particular to a filter structure for marine valves that is easy to disassemble and assemble. Background Technology

[0002] Marine valves with easily disassembled filter structures are mainly used inside various valves in marine pipeline systems. They can filter impurities such as mud, sand, and metal shavings in the fluid, preventing impurities from entering the valve sealing surface or valve core and causing wear or jamming. This ensures stable opening and closing of valves in media such as seawater, fuel oil, and cooling water, and reduces the impact of pipeline failures on ship navigation. They are especially widely used in marine power systems and ballast water systems.

[0003] To improve the filter structure, existing technologies have optimized the mesh shape by using tapered holes instead of round holes to improve the efficiency of impurity passage. At the same time, the connection method of the filter edge has been improved by adding protruding buckles to fit with the grooves on the inner wall of the valve, which enhances the stability of the filter after installation. In addition, high-strength brass material has been selected and chrome-plated on the surface to improve the corrosion resistance and impact resistance of the filter.

[0004] The main drawback of this filter structure is that disassembly and assembly rely on specialized tools. Its connection to the inner wall of the valve is mostly achieved by bolt fixing or thread tightening, without any design for quick disassembly and assembly by hand. In emergency situations, if operators do not have the tools, they cannot replace or clean the filter in time. Furthermore, the surface of the filter is mostly a planar mesh structure, which makes it easy for large fibrous or blocky blockages to become embedded in the mesh and adhere tightly. It is difficult to remove them by water rinsing alone, and long-term accumulation will reduce filtration efficiency and affect the normal operation of valves and pipelines. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a filter screen structure for marine valves that is easy to disassemble and assemble, aiming to solve the problem in the prior art that operators cannot replace or clean the filter screen in time in emergency situations if they do not have the tools.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a filter screen structure for marine valves that is easy to disassemble and assemble, comprising a pipeline ball valve, wherein the outer wall of the pipeline ball valve is provided with a quick disassembly and assembly mechanism and a water flow adaptation mechanism, an inlet pipe outer tube is fixedly connected to the outer wall of the pipeline ball valve, a filter screen surface scraper is fixedly connected to the inner surface of the inlet pipe outer tube, a filter screen insertion tube is fixedly connected to the inner wall of the inlet pipe outer tube, a sliding groove is provided on the inner wall of the filter screen insertion tube, a locking groove is provided on the inner wall of the filter screen insertion tube, a push plate is slidably connected to the inner surface of the locking groove, a press button is fixedly connected to the inner wall of the push plate, the outer wall of the press button is slidably connected to the inner wall of the filter screen insertion tube, and a filter screen tube body is slidably connected to the inner surface of the filter screen insertion tube.

[0007] As a further description of the above technical solution: The quick assembly / disassembly mechanism also includes a guide rod, the outer wall of which is fixedly connected to the inner wall of the filter tube.

[0008] As a further description of the above technical solution: The quick assembly / disassembly mechanism also includes a filter screen locking block, the inner wall of which is fixedly connected to the inner wall of the guide rod, and the outer wall of which is slidably connected to the inner wall of the filter screen tube.

[0009] As a further description of the above technical solution: The quick disassembly and assembly mechanism also includes a spring, one end of which is fixedly connected to the outer wall of the filter screen locking block, and the other end of which is fixedly connected to the inner wall of the filter screen tube.

[0010] As a further description of the above technical solution: The water flow adaptation mechanism includes a spherical filter screen, the outer wall of which is fixedly connected to the outer wall of the filter screen tube.

[0011] As a further description of the above technical solution: The outer wall of the filter locking block is slidably connected to the sliding slot.

[0012] As a further description of the above technical solution: The inner wall of the pipeline ball valve is rotatably connected to a ball valve handle.

[0013] As a further description of the above technical solution: The outer wall of the spherical filter screen is slidably connected to the scraper on the filter screen surface.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the filter screen insertion tube and the filter screen tube body in the quick disassembly and assembly mechanism slide together, so that the filter screen can be disassembled and assembled without the need for tools. The operator can disassemble or install the filter screen manually. In addition, during the disassembly process, the outer surface of the filter screen can be simply cleaned by the effect of the scraper on the filter screen surface.

[0015] 2. In this utility model, by adapting to the water flow mechanism, the filter screen body, which is the most important part of the filter screen structure, is made into a hemispherical shape. Common square or flat filter screens may be twisted, deformed or even damaged under long-term water flow impact, while the hemispherical filter screen body can effectively reduce the stress of water flow impact, making the filter screen last longer and less prone to damage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of a filter screen structure for marine valves that is easy to disassemble and assemble, as proposed in this utility model. Figure 2This is a schematic diagram of the back structure of a filter screen structure for marine valves that is easy to disassemble and assemble, as proposed in this utility model. Figure 3 This is a side view of a filter screen structure for marine valves that is easy to disassemble and assemble, as proposed in this utility model. Figure 4 This is a cross-sectional schematic diagram of a filter screen structure for marine valves that is easy to disassemble and assemble, as proposed in this utility model. Figure 5 This is a cross-sectional disassembly diagram of a filter screen structure for marine valves that is easy to disassemble and assemble, as proposed in this utility model. Figure 6 This is a schematic diagram of a filter screen structure for marine valves that is easy to disassemble and assemble, as proposed in this utility model. Figure 7 This utility model proposes a filter structure for marine valves that is easy to disassemble and assemble. Figure 6 Enlarged diagram of part A; Figure 8 This is a cross-sectional schematic diagram of a filter screen structure for marine valves that is easy to disassemble and assemble, as proposed in this utility model. Figure 9 This is a disassembly diagram of a filter screen structure for marine valves that is easy to disassemble and assemble, as proposed in this utility model. Legend: 1. Pipeline ball valve; 2. Quick disassembly and assembly mechanism; 211. Inlet pipe outer tube; 212. Filter screen surface scraper; 213. Filter screen insertion tube; 214. Sliding groove; 215. Locking groove; 216. Push plate; 217. Press button; 218. Filter screen tube body; 219. Guide rod; 220. Spring; 221. Filter screen locking block; 3. Water flow adaptation mechanism; 311. Spherical filter screen; 4. Ball valve handle. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figures 1-3The present invention provides an embodiment of a filter screen structure for marine valves that is easy to disassemble and assemble. This structure achieves convenient filter screen replacement and water flow adaptation through a quick-disassembly mechanism 2 and a water flow adaptation mechanism 3. It includes a pipe ball valve 1, which is the basic structural component used to control the opening and closing of the pipe. The outer wall of the pipe ball valve 1 is equipped with a quick-disassembly mechanism 2 and a water flow adaptation mechanism 3. These two mechanisms work together to achieve the functions of filter screen disassembly and water flow adaptation. An inlet pipe outer tube 211 is fixedly connected to the outer wall of the pipe ball valve 1, providing an installation base for the filter screen. A filter screen surface scraper 212 is fixedly connected to the inner surface of the inlet pipe outer tube 211, used to clean impurities from the surface of the spherical filter screen 311. A filter screen insertion tube 213 is fixedly connected to the inner wall of the inlet pipe outer tube 211, providing an insertion guide for the filter screen tube body 218. The inner wall of the filter insertion tube 213 has a sliding groove 214, which cooperates with the filter locking block 221 to guide the installation of the filter tube 218. The inner wall of the filter insertion tube 213 has a locking groove 215, which cooperates with the filter locking block 221 to lock the filter tube 218. A push plate 216 is slidably connected to the inner surface of the locking groove 215. The push plate 216 is used to push the filter locking block 221 to release the lock. A press button 217 is fixedly connected to the inner wall of the push plate 216. The press button 217 is used to drive the push plate 216 to move. The outer wall of the press button 217 is slidably connected to the inner wall of the filter insertion tube 213. The press button 217 can slide along the inner wall of the filter insertion tube 213. The filter tube 218 is slidably connected to the inner surface of the filter insertion tube 213. The filter tube 218 can slide into or out along the inner surface of the filter insertion tube 213.

[0019] Reference Figures 4-6 The quick-release mechanism 2 also includes a guide rod 219, which provides sliding guidance for the filter locking block 221. The outer wall of the guide rod 219 is fixedly connected to the inner wall of the filter tube 218, and the guide rod 219 provides a moving path for the filter locking block 221. The quick-release mechanism 2 also includes a filter locking block 221, which cooperates with the locking slot 215 to lock and unlock the filter tube 218. The inner wall of the filter locking block 221 is fixedly connected to the inner wall of the guide rod 219, and the filter locking block 221 can slide along the guide rod 219. The filter locking block 221 is slidably connected to the inner wall of the filter tube 218. The filter locking block 221 can slide radially on the inner wall of the filter tube 218. The quick disassembly and assembly mechanism 2 also includes a spring 220. The spring 220 provides the filter locking block 221 with a spring force for popping out and locking. One end of the spring 220 is fixedly connected to the outer wall of the filter locking block 221, and the spring 220 keeps the filter locking block 221 in a locked state. The other end of the spring 220 is fixedly connected to the inner wall of the filter tube 218, and the spring 220 provides the filter locking block 221 with a reset spring force.

[0020] Reference Figures 7-9The water flow adapting mechanism 3 includes a spherical filter screen 311, which is used to filter impurities in the water and disperse the impact force of the water flow. The outer wall of the spherical filter screen 311 is fixedly connected to the outer wall of the filter screen tube 218. The spherical filter screen 311 and the filter screen tube 218 move synchronously. The outer wall of the filter screen locking block 221 is slidably connected to the sliding slot 214. The filter screen locking block 221 slides along the sliding slot 214 to realize the installation of the filter screen tube 218. The inner wall of the pipeline ball valve 1 is rotatably connected to the ball valve handle 4, which is used to control the opening and closing state of the pipeline ball valve 1. The outer wall of the spherical filter screen 311 is slidably connected to the filter screen surface scraper 212. When the spherical filter screen 311 rotates, it rubs against the filter screen surface scraper 212 to achieve self-cleaning.

[0021] Working principle: The structure of this marine valve filter screen is based on the pipeline ball valve 1. The outer pipe 211 of the inlet pipe is fixed to its outer wall. The filter screen tube 218 is installed in the filter screen insertion pipe 213 through the quick disassembly and assembly mechanism 2. The spherical filter screen 311 of the water flow adaptation mechanism 3 realizes filtration and water flow adaptation. The filter screen surface scraper 212 assists in cleaning. The ball valve handle 4 controls the opening and closing of the pipeline ball valve 1. The whole system realizes the convenient disassembly and assembly and filtration functions of the filter screen through mechanical cooperation.

[0022] In the quick-release mechanism 2, the inner wall of the filter insertion tube 213 has a sliding groove 214 and a locking groove 215. A guide rod 219 is fixed inside the filter tube body 218. The filter locking block 221 is sleeved on the guide rod 219 and connected to the inner wall of the filter tube body 218 by a spring 220. The push plate 216 is fixed to the press button 217 and located in the locking groove 215. During installation, the filter tube body 218 is inserted into the filter insertion tube 213, and the filter... The locking block 221 first slides along the sliding slot 214. When it reaches the locking slot 215, the spring 220 pushes the filter locking block 221 to pop out and lock into the locking slot 215, thus completing the fixation. When disassembling, press the pressing button 217 to move the push plate 216, which pushes the filter locking block 221 to compress the spring 220, causing it to disengage from the locking slot 215 and retract into the filter tube 218. At this time, the filter tube 218 can be pulled out along the sliding slot 214.

[0023] In the water flow mechanism 3, the spherical filter screen 311 is fixed to the outer wall of the filter screen tube 218. Its arc-shaped surface can disperse the impact force of the water flow and reduce the direct impact of the water flow on the filter screen to protect the structure. The filter screen surface scraper 212 is fixed to the inner surface of the outer tube 211 of the inlet pipe and fits against the outer wall of the spherical filter screen 311. When the filter screen tube 218 rotates during disassembly and assembly, it drives the spherical filter screen 311 to rotate. The outer wall of the spherical filter screen 311 and the filter screen surface scraper 212 slide relative to each other. The scraper can scrape off the impurities attached to the surface of the spherical filter screen 311 to achieve self-cleaning. Rotating the ball valve handle 4 can control the opening and closing state of the pipeline ball valve 1, and work with the spherical filter screen 311 to achieve the coordinated operation of valve opening and closing and filtration functions.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filter screen structure for marine valve for easy disassembly, comprising a pipe ball valve (1), characterized in that: The outer wall of the pipeline ball valve (1) is provided with a quick disassembly mechanism (2) and a water flow adaptation mechanism (3). The outer wall of the pipe ball valve (1) is fixedly connected to the outer pipe of the water inlet (211). The inner surface of the outer pipe of the water inlet (211) is fixedly connected to the surface scraper of the filter screen (212). The inner wall of the outer pipe of the water inlet (211) is fixedly connected to the filter screen insertion tube (213). The inner wall of the filter screen insertion tube (213) is provided with a sliding groove (214). The inner wall of the filter screen insertion tube (213) is provided with a locking groove (215). The inner surface of the locking groove (215) is slidably connected to a push plate (216). The inner wall of the push plate (216) is fixedly connected to a pressing button (217). The outer wall of the pressing button (217) is slidably connected to the inner wall of the filter screen insertion tube (213). The inner surface of the filter screen insertion tube (213) is slidably connected to the filter screen tube body (218).

2. A filter screen structure for a marine valve according to claim 1, wherein: The quick assembly / disassembly mechanism (2) also includes a guide rod (219), the outer wall of which is fixedly connected to the inner wall of the filter tube body (218).

3. A filter screen structure for easy removal of a marine valve according to claim 2, characterized in that: The quick assembly / disassembly mechanism (2) also includes a filter screen locking block (221), the inner wall of which is fixedly connected to the inner wall of the guide rod (219), and the outer wall of which is slidably connected to the inner wall of the filter screen tube (218).

4. A filter screen structure for easy removal of a marine valve according to claim 3, characterized in that: The quick disassembly mechanism (2) also includes a spring (220), one end of which is fixedly connected to the outer wall of the filter screen locking block (221), and the other end of which is fixedly connected to the inner wall of the filter screen tube (218).

5. A filter screen structure for easy removal of a marine valve according to claim 1, characterized in that: The water flow adaptation mechanism (3) includes a spherical filter screen (311), the outer wall of which is fixedly connected to the outer wall of the filter screen tube body (218).

6. A filter screen structure for easy removal of a marine valve according to claim 3, characterized in that: The outer wall of the filter locking block (221) is slidably connected to the sliding slot (214).

7. A filter screen structure for easy removal of a marine valve according to claim 1, characterized in that: The inner wall of the pipeline ball valve (1) is rotatably connected to a ball valve handle (4).

8. A filter screen structure for easy removal of a marine valve according to claim 5, characterized in that: The outer wall of the spherical filter screen (311) is attached to the scraper (212) on the filter screen surface.

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