Anti-blocking valve and method thereof

Abstract

The anti-blocking type valve comprises a water inlet pipe, a water outlet pipe and a protective shell, a cleaning shell is communicated between the water inlet pipe and the water outlet pipe, in a normal state, water flow passes through a filter plate and impacts a floating blocking piece all the time, so that a blocking opening is in an open state, and when the filter plate is blocked, the water flow flowing through the cleaning shell is reduced; the impact force of water flow is also reduced, under the action of a damping piece and a tension spring, a floating blocking piece can drive a movable rod to move downwards, so that a filter plate, a limiting plate and a blocking plate are driven to move downwards, in the downward moving process of the filter plate, a cleaning scraping plate scrapes off impurities on the surface of the filter plate, and the scraped impurities flow out of a limiting shell along with the water flow. In the discharging pipeline, in the downward moving process of the filter plate, the water flow in the area not shielded by the filter plate is gradually increased, and the floating blocking piece slowly moves upwards to drive the filter plate, the limiting plate and the blocking plate to move upwards.

Description

Technical Field

[0001] The invention relates to the technical field of valve cleaning, in particular to an anti-clogging valve and a method thereof. Background Art

[0002] Valves are pipe accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Valves are control components in fluid conveying systems, with functions such as shut-off, regulation, diversion, prevention of backflow, pressure stabilization, diversion, or overflow pressure relief. Valves used in fluid control systems, from the simplest shut-off valves to various valves used in extremely complex automatic control systems, have a wide variety of varieties and specifications. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal, and radioactive media.

[0003] When existing valves are used in pipelines, since the water may contain small particles and other impurities, these impurities will flow into the valve with the water. If they are not cleaned for a long time, the valve will be completely blocked, affecting the normal flow of water. Therefore, in actual use, anti-blocking cleaning components are often installed inside the pipeline.

[0004] During subsequent use, the anti-blocking cleaning device will sweep away the impurities that are blocking the surface of the filter, but the swept impurities are still stored inside the valve and need to be cleaned regularly to ensure that the valve is not blocked.

[0005] Faced with the above situation, how to effectively solve the impurities accumulated inside the valve and achieve automatic cleaning has become a problem that needs to be solved. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides an anti-clogging valve and method thereof, which realizes that when the filter plate is blocked, the floating sealing member will drive the filter plate, the limit plate and the sealing plate to move downward, thereby sweeping down the impurities on the surface of the filter plate, and the impurities will flow out of the pipeline during the flow of water. This makes cleaning more convenient and does not require manual cleaning, thereby improving work efficiency.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-clogging valve, comprising an inlet pipe, an outlet pipe and a protective shell, a cleaning shell is connected between the inlet pipe and the outlet pipe, a return pipe is connected between the protective shell and the outlet pipe, a valve seat is fixedly arranged inside the outlet pipe, a valve is fixedly arranged outside the outlet pipe, a threaded rod is connected to the internal thread of the valve, a blocking plate is fixedly connected to the bottom of the threaded rod, and a card interface for the blocking plate to be connected is provided on the surface of the valve seat.

[0008] The upper side of the cleaning shell is vertically connected with a first flow pipe, the upper side end of the first flow pipe is connected with the protective shell, the ring side of the first flow pipe is vertically connected with a second flow pipe, and one side of the second flow pipe is connected with a limiting shell.

[0009] A plugging assembly is provided in the protective shell, and a damping member connected to the inner side of the top plate of the protective shell, a connecting plate fixedly connected to the lower side end of the damping member, a tension spring connected to the lower side of the connecting plate, and a floating plugging member fixedly connected to the tension spring are arranged in the protective shell. A movable rod is connected to the bottom of the floating plugging member, and a connecting rod is fixedly provided on one side of the movable rod.

[0010] A plugging port adapted to the floating plugging piece is arranged inside the protective shell, and the movable rod movably passes through the plugging port;

[0011] Among them, a limiting plate located at the water outlet is slidably arranged in the limiting shell, and the limiting plate is fixedly connected to the connecting rod;

[0012] A filter plate fixedly connected to the lower end of the movable rod is arranged inside the cleaning shell, a card slot for storing the filter plate is arranged inside the cleaning shell, and a cleaning scraper is fixedly arranged inside the cleaning shell;

[0013] The upper side of the cleaning shell is vertically connected to a blocking shell, a blocking plate is movably arranged inside the blocking shell, the lower end of the movable rod is fixedly connected to the blocking plate, a blocking groove adapted to the blocking plate is opened inside the cleaning shell, wherein the blocking plate is located downstream of the filter plate.

[0014] As a preferred technical solution of the present invention, the cleaning scraper is arranged above the card slot, and the cleaning scraper is abutted against the filter plate. When the cleaning scraper is abutted against the surface of the filter plate, the cleaning scraper can scrape off impurities adsorbed on the surface of the filter plate during the downward movement of the filter plate.

[0015] As a preferred technical solution of the present invention, the cleaning shell also includes a flow area between the filter plate and the blocking plate, one end of the return pipe is connected to the protective shell, and the other end of the return pipe is connected to the flow area of ​​the cleaning shell.

[0016] As a preferred technical solution of the present invention, the lower end of the movable rod is fixedly connected to a horizontal mounting rod, one end of the mounting rod is fixedly connected to the upper end of the filter plate, and the other end of the mounting rod is fixedly connected to the lower end of the blocking plate.

[0017] As a preferred technical solution of the present invention, the floating plugging member and the plugging port are both configured to be conical.

[0018] As a preferred technical solution of the present invention, a thread groove matching the threaded rod is provided inside the valve.

[0019] The present invention provides an anti-clogging valve and a method thereof, comprising the following steps:

[0020] S1. Under normal conditions, flowing water will enter from the water inlet pipe, and part of the water will flow into the protective shell and the second flow pipe. The floating plugging piece will move upward under the action of the water flow, and the plugging port will be in an open state.

[0021] S2. When the surface of the filter plate is clogged with impurities and small particles, the water flow flowing through the filter plate decreases. When the floating sealing piece is reduced by the water flow, the tension spring pushes the floating sealing piece down until the floating sealing piece blocks the sealing port, and the movable rod drives the filter plate and the sealing plate to move downward.

[0022] S2.1. The blocking plate moves down into the blocking groove to prevent water from flowing out of the outlet pipe.

[0023] S2.2. As the filter plate moves downward, the cleaning scraper will brush off the impurities attached to the surface of the filter plate.

[0024] S2.3. At the same time, the connecting rod drives the limit plate to move downward, the water outlet opens, and the impurities on the surface of the filter plate are brushed off. Driven by the water flow, the impurities blocked in the pipeline are discharged through the first flow pipe, the second flow pipe, the limit shell, and the water outlet.

[0025] S3. During the downward movement of the filter plate, the water flow in the area not blocked by the filter plate gradually increases, and the water flow will impact the floating plugging part. Under the joint action of the damping part and the tension spring, the floating plugging part slowly moves upward. The upward movement of the floating plugging part drives the filter plate, the limit plate and the plugging plate to move upward, and the water outlet gradually closes. The filter plate starts to filter the water flow, the plugging plate opens the water flow channel, and the pipeline resumes normal water flow and filtration operation.

[0026] The present invention provides an anti-clogging valve, which has the following beneficial effects:

[0027] The present invention provides a floating plugging piece. Under normal circumstances, when water flows through the filter plate, the water flow will continuously impact the floating plugging piece, so that the plugging port is in an open state. When the filter plate is blocked, the water flow flowing through the cleaning shell is reduced, and the impact force of the water flow is also reduced. Under the action of the damping piece and the tension spring, the floating plugging piece will drive the movable rod to move downward, thereby driving the filter plate, the limit plate and the plugging plate to move downward. In the process of the filter plate moving downward, the cleaning scraper will scrape off the impurities on the surface of the filter plate, and the scraped impurities will flow out of the limit shell along with the water flow and be discharged into the pipeline. In the process of the filter plate moving downward, the water flow in the area not blocked by the filter plate gradually increases, and the floating plugging piece slowly moves upward, driving the filter plate, the limit plate and the plugging plate to move upward. In this way, when the filter plate is blocked, there is no need for manual cleaning. When the impurities are blocked to a certain extent, the filter plate will be automatically cleaned, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0030] Figure 3 It is a schematic diagram of the cross-sectional structure of the cleaning shell under normal conditions of the present invention.

[0031] Figure 4 This is a schematic diagram of the cross-sectional structure of the cleaning shell under normal conditions of the present invention.

[0032] Figure 5 It is a schematic diagram of the cross-sectional structure of the cleaning shell in a blocked state of the present invention.

[0033] Figure 6 It is a schematic diagram of the cross-sectional structure of the valve and the water outlet pipe of the present invention.

[0034] In the figure: 1, water inlet pipe; 2, cleaning shell, 201, filter plate, 202, cleaning scraper, 203, card slot, 204, blocking slot, 205, circulation area; 3, protective shell, 301, blocking port; 4, first circulation pipe; 5, blocking assembly, 501, damping member, 502, connecting plate, 503, tension spring, 504, floating blocking member, 505, movable rod, 506, mounting rod, 507, connecting rod; 6, second circulation pipe; 7, limit shell, 701, limit plate, 702, water outlet; 8, water outlet pipe, 801, valve seat, 802, card interface; 9, valve, 901, threaded rod, 902, blocking plate; 10, reflux pipe; 11, blocking shell; 12, blocking plate. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0036] Embodiment 1: The present invention designs an anti-blocking valve, which mainly includes the following contents:

[0037] Combination Figure 1 , Figure 2 The valve body comprises an inlet pipe 1, a cleaning shell 2, an outlet pipe 8 and a protective shell 3. The cleaning shell 2 is located between the inlet pipe 1 and the outlet pipe 8. A reflux pipe 10 is connected between the protective shell 3 and the outlet pipe 8.

[0038] Combination Figure 2 , Figure 6A valve seat 801 is fixedly provided inside the water outlet pipe 8, a valve 9 is fixedly provided on the outside of the water outlet pipe 8, a threaded rod 901 is threadedly connected to the inside of the valve 9, a threaded groove matching the threaded rod 901 is provided inside the valve 9, a blocking plate 902 is fixedly connected to the bottom of the threaded rod 901, a card interface 802 is provided on the surface of the valve seat 801, and the card interface 802 is card-connected with the blocking plate 902.

[0039] Combination Figure 2 , Figure 3 , Figure 4 , Figure 5 The first flow pipe 4 is vertically installed on the upper side of the cleaning shell 2 and is connected to the cleaning shell 2. The upper side end of the first flow pipe 4 is connected to the protective shell 3. The ring side of the first flow pipe 4 is vertically connected to the second flow pipe 6. One side of the second flow pipe 6 is connected to the limiting shell 7. A blocking component 5 is arranged in the protective shell 3. The blocking component 5 includes a damping member 501, and the damping member 501 is fixedly connected to the protective shell 3. A connecting plate 502 is fixedly arranged on one side of the damping member 501. A tension spring 503 is connected to the lower side of the connecting plate 502, and one end of the tension spring 503 is fixedly connected to a floating blocking member 504. A movable rod 505 is connected to the bottom of the floating blocking member 504, and a connecting rod 507 is fixedly arranged on one side of the movable rod 505.

[0040] A plugging port 301 is provided inside the protective shell 3, and the plugging port 301 cooperates with the floating plugging member 504, the floating plugging member 504 is set to be conical, and the plugging port 301 is also set to be conical, and the movable rod 505 moves through the plugging port 301, wherein a limiting plate 701 is slidably provided in the limiting shell 7, and the limiting plate 701 is provided at the position of the water outlet 702, and the limiting plate 701 is fixedly connected to the connecting rod 507, and a filter plate 201 is provided inside the cleaning shell 2, and the filter plate 201 is fixedly connected to the lower side end of the movable rod 505, and a card slot 203 is provided inside the cleaning shell 2, and the card slot 203 is used to store the filter plate 201, and a cleaning Scraper 202, the cleaning scraper 202 is arranged above the card slot 203, and the cleaning scraper 202 abuts against the surface of the filter plate 201, the upper side of the cleaning shell 2 is vertically connected to the blocking shell 11, and a blocking plate 12 is movably arranged in the blocking shell 11, and the lower end of the movable rod 505 is fixedly connected to the blocking plate 12, and a blocking groove 204 is opened inside the cleaning shell 2, and the blocking groove 204 is adapted to the blocking plate 12, and the lower end of the movable rod 505 is fixedly connected to a horizontal mounting rod 506, one side end of the mounting rod 506 is fixedly connected to the upper side end of the filter plate 201, and the other side end of the mounting rod 506 is fixedly connected to the lower side end of the blocking plate 12, wherein the blocking plate 12 is located downstream of the filter plate 201.

[0041] Combination Figure 3 , Figure 4The cleaning shell 2 also includes a flow area 205 located between the filter plate 201 and the blocking plate 12. One end of the return pipe 10 is connected to the protective shell 3, and the other end of the return pipe 10 is connected to the flow area 205 of the cleaning shell 2. In this way, when the outlet pipe 8 is normally opened for circulation, the water flow can flow normally from the protective shell 3. When the filter plate 201 descends, part of the turbid liquid enters the protective shell 3. When the turbid liquid in the protective shell 3 flows back to the flow area 205 through the return pipe 10, the blocking plate 12 may have blocked the water flow toward the downstream of the outlet pipe 8, thereby reducing the amount of turbid liquid flowing to the downstream of the outlet pipe 8.

[0042] Embodiment 2: In the present invention, an anti-blocking valve and method thereof, the specific working principle is as follows:

[0043] First, under normal conditions, flowing water will enter from the water inlet pipe 1, and part of the water will flow into the protective shell 3 and the second flow pipe 6. The floating plugging member 504 will move upward under the action of the water flow, and the plugging port 301 will be in an open state.

[0044] Then, when the surface of the filter plate 201 is clogged with impurities and small particles, the water flow flowing through the filter plate 201 is reduced. When the floating sealing member 504 is reduced by the water flow, the tension spring 503 pushes the floating sealing member 504 down until the floating sealing member 504 blocks the sealing port 301, and the movable rod 505 drives the filter plate 201 and the sealing plate 12 to move downward.

[0045] The blocking plate 12 moves down into the blocking groove 204 to prevent water from flowing out of the water outlet pipe 8. During the downward movement of the filter plate 201, the cleaning scraper 202 brushes off the impurities attached to the surface of the filter plate 201. At the same time, the connecting rod 507 drives the limiting plate 701 to move downward, and the water outlet 702 opens. After the impurities on the surface of the filter plate 201 are brushed off, the impurities blocked in the pipeline are discharged through the first flow pipe 4, the second flow pipe 6, the limiting shell 7, and the water outlet 702 under the drive of the water flow.

[0046] During the downward movement of the filter plate 201, the water flow in the area not blocked by the filter plate 201 gradually increases, and the water flow will impact the floating blocking member 504. Under the joint action of the damping member 501 and the tension spring 503, the floating blocking member 504 slowly moves upward. The upward movement of the floating blocking member 504 drives the filter plate 201, the limit plate 701 and the blocking plate 12 to move upward, and the water outlet 702 gradually closes. The filter plate 201 starts to filter the water flow, the blocking plate 12 opens the water flow channel, and the pipeline resumes normal water flow and filtering operations.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-clogging valve, comprising a water inlet pipe (1), a water outlet pipe (8) and a protective shell (3), wherein a cleaning shell (2) is connected between the water inlet pipe (1) and the water outlet pipe (8), a return pipe (10) is connected between the protective shell (3) and the water outlet pipe (8), a valve seat (801) is fixedly arranged inside the water outlet pipe (8), a valve (9) is fixedly arranged outside the water outlet pipe (8), a threaded rod (901) is threadedly connected inside the valve (9), a blocking plate (902) is fixedly connected to the bottom of the threaded rod (901), a card interface (802) for the blocking plate (902) to be connected is provided on the surface of the valve seat (801), and the characteristics are: The upper side of the cleaning shell (2) is vertically connected to a first flow pipe (4), the upper side end of the first flow pipe (4) is connected to the protective shell (3), the ring side of the first flow pipe (4) is vertically connected to a second flow pipe (6), and one side of the second flow pipe (6) is connected to a limit shell (7); A blocking assembly (5) is arranged in the protective shell (3), and a damping member (501) connected to the inner side of the top plate of the protective shell (3), a connecting plate (502) fixedly connected to the lower side end of the damping member (501), a tension spring (503) connected to the lower side of the connecting plate (502), and a floating blocking member (504) fixedly connected to the tension spring (503) are arranged in the protective shell (3); a movable rod (505) is connected to the bottom of the floating blocking member (504), and a connecting rod (507) is fixedly arranged on one side of the movable rod (505); The protective shell (3) is provided with a blocking port (301) adapted to the floating blocking member (504) inside, and the movable rod (505) is movable through the blocking port (301); Wherein, a limiting plate (701) located at the water outlet (702) is slidably arranged in the limiting shell (7), and the limiting plate (701) is fixedly connected to the connecting rod (507); The cleaning shell (2) is provided with a filter plate (201) fixedly connected to the lower side end of the movable rod (505) inside, the cleaning shell (2) is provided with a slot (203) for storing the filter plate (201) inside, and a cleaning scraper (202) is fixedly provided inside the cleaning shell (2); The upper side of the cleaning shell (2) is vertically connected to a blocking shell (11), a blocking plate (12) is movably arranged inside the blocking shell (11), the lower end of the movable rod (505) is fixedly connected to the blocking plate (12), and a blocking groove (204) adapted to the blocking plate (12) is provided inside the cleaning shell (2), wherein the blocking plate (12) is located downstream of the filter plate (201).

2. The anti-clogging valve according to claim 1, characterized in that: The cleaning scraper (202) is arranged above the card slot (203), and the cleaning scraper (202) abuts against the surface of the filter plate (201).

3. The anti-clogging valve according to claim 1, characterized in that: The cleaning shell (2) further comprises a flow area (205) located between the filter plate (201) and the blocking plate (12); one end of the return pipe (10) is connected to the protective shell (3); and the other end of the return pipe (10) is connected to the flow area (205) of the cleaning shell (2).

4. The anti-clogging valve according to claim 1, characterized in that: The lower end of the movable rod (505) is fixedly connected to a horizontal mounting rod (506), one side end of the mounting rod (506) is fixedly connected to the upper end of the filter plate (201), and the other side end of the mounting rod (506) is fixedly connected to the lower end of the blocking plate (12).

5. The anti-clogging valve according to claim 1, characterized in that: The floating plugging member (504) and the plugging port (301) are both configured to be conical.

6. The anti-clogging valve according to claim 1, characterized in that: The valve (9) is provided with a threaded groove inside which matches the threaded rod (901).

7. A method for using an anti-blocking valve, characterized in that: An anti-clogging valve according to any one of claims 1 to 6 is used, comprising the following steps: S1. Under normal conditions, flowing water enters from the water inlet pipe (1), a portion of the water flows into the protective shell (3) and the second flow pipe (6), the floating plugging member (504) moves upward under the action of the water flow, and the plugging port (301) is in an open state; S2. When the surface of the filter plate (201) is clogged by impurities and small particles, the water flow flowing through the filter plate (201) decreases, and when the floating blocking member (504) is reduced by the water flow, the tension spring (503) pushes the floating blocking member (504) down until the floating blocking member (504) blocks the blocking port (301), and the movable rod (505) drives the filter plate (201) and the blocking plate (12) to move downward; S2.

1. The blocking plate (12) moves down into the blocking groove (204) to prevent water from flowing out of the outlet pipe (8); S2.

2. During the downward movement of the filter plate (201), the cleaning scraper (202) brushes off the impurities attached to the surface of the filter plate (201); S2.

3. At the same time, the connecting rod (507) drives the limit plate (701) to move downward, the water outlet (702) opens, and the impurities on the surface of the filter plate (201) are brushed off. Then, driven by the water flow, the impurities blocked in the pipeline are discharged through the first flow pipe (4), the second flow pipe (6), the limit shell (7), and the water outlet (702); S3. During the downward movement of the filter plate (201), the water flow in the area not blocked by the filter plate (201) gradually increases, and the water flow impacts the floating plugging member (504). Under the joint action of the damping member (501) and the tension spring (503), the floating plugging member (504) slowly moves upward. The upward movement of the floating plugging member (504) drives the filter plate (201), the limit plate (701) and the plugging plate (12) to move upward, and the water outlet (702) gradually closes. The filter plate (201) starts to filter the water flow, and the plugging plate (12) opens the water flow channel, and the pipeline resumes normal water flow and filtering operation.

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