Anti-blocking valve

Abstract

The utility model relates to the technical field of anti-blocking valves, in particular to an anti-blocking valve which comprises a valve body and a hand wheel used for controlling the valve body to be in an opening or closing state, the top of the valve body is provided with the rotatable hand wheel, the bottom of the valve body is provided with a rotating shaft, and the outer side of the rotating shaft is rotationally connected with a rotating plate. Arc-shaped protection plates are fixedly connected to the two ends of the outer side of the rotating plate, a first groove with an arc-shaped edge is formed in the inner side of the rotating plate, a filter screen is tightly attached to the inner side of the rotating plate, and a first positioning plate is fixedly connected to one side of the filter screen; the other side of the filter screen is fixedly connected with a second positioning plate of which the outer side edge is arranged in an arc shape, the detachable filter device is arranged, so that impurities in liquid are not prone to blocking the valve body, meanwhile, the filter device can be replaced, and the sealing effect at the position of the valve body is improved through the arranged rubber layer.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-blocking valves, and particularly relates to an anti-blocking valve. Background Art

[0002] A valve is a pipeline accessory used to open and close pipelines, control the flow direction, regulate and control the parameters (temperature, pressure, and flow rate) of the transported medium. It is a control component in a fluid transportation system and has functions such as cutoff, regulation, diversion, prevention of backflow, pressure stabilization, flow splitting, or overflow pressure relief. Its varieties and specifications are quite numerous.

[0003] When installing a valve, it needs to be installed strictly in the direction indicated by the inlet and outlet arrows of the valve. Generally, there are two connection methods: flange connection and clamp connection. When the valve passes through liquid, if there are many impurities in the liquid, it is easy to cause blockage at the valve. Therefore, an anti-blocking valve is proposed for the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide an anti-blocking valve to solve the problem that impurities are easy to cause blockage when the liquid containing impurities flows through the valve.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An anti-blocking valve includes a valve body and a handwheel for controlling the valve body to be in an open or closed state. The handwheel is provided at the top of the valve body, the bottom of the valve body is provided with a rotating shaft, the outside of the rotating shaft is rotatably connected with a rotating plate, both ends of the outside of the rotating plate are fixedly connected with arc-shaped protective plates, the inside of the rotating plate is provided with a first groove with an arc-shaped edge, the inside of the rotating plate is closely attached with a filter screen, one side of the filter screen is fixedly connected with a first positioning plate, a magnetic block is arranged in the first positioning plate, the other side of the filter screen is fixedly connected with a second positioning plate with an arc-shaped outside edge, the inside of the valve body is provided with a second groove, both the rotating plate and the top of the valve body are fixedly connected with fixing blocks with an arc-shaped bottom surface, a bolt penetrates through the fixing block, and a nut is spirally connected to the outside of one end of the bolt.

[0007] Preferably, a first rubber layer is fixedly connected to the inside of the protective plate, and the first rubber layer is closely attached to the valve body.

[0008] Preferably, the filter screen is composed of a frame and a filter mesh, and the frame of the filter screen is closely attached to the inside of the rotating plate.

[0009] Preferably, the rotating plate is made of metal, and the first positioning plate is closely attached to the first groove formed in the rotating plate.

[0010] Preferably, one side of the nut is closely attached to the fixing block at the top of the valve body, and a second rubber layer is fixedly connected to one side of the rotating plate.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] In the present utility model, through the valve body, handwheel and filter screen provided, when the liquid flows through the valve body, the liquid moves from the right side to the left side. When it moves to the filter screen inside the valve body, the filtered liquid continues to move to the left side, enabling the liquid at the valve to have a filtering effect during flow. At this time, impurities are not likely to cause blockage at the center of the valve body. Through the rotating shaft, rotating plate, first groove, first positioning plate, magnetic block, second positioning plate and second groove provided, the user rotates the rotating plate on the outside of the rotating shaft to the side away from the valve body. Since the rotating plate is made of metal and a magnetic block is provided in the first positioning plate in the first groove opened therein, when the rotating plate rotates, the filter screen, first positioning plate and second positioning plate are driven to rotate simultaneously. After rotating to a suitable position, the filter screen can drive the first positioning plate and the second positioning plate to be taken out as a whole, and the filter screen after long-term use can be replaced. Through the fixing block, bolt and nut provided, the rotating plate can be fixed. By providing the second rubber layer on the inner side of the rotating plate, the sealing effect inside the valve body is increased when it is in the closed state. By providing the protective plates on both sides of the rotating plate and the first rubber layer on the inner side of the protective plates, the sealing effect inside the valve body is further increased. Description of the Drawings

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 is of the present utility model Figure 1 structural schematic diagram of part A;

[0015] Figure 3 is a schematic diagram of the open structure of the rotating plate of the present utility model;

[0016] Figure 4 is a schematic side view of the open rotating plate of the present utility model.

[0017] In the figure: 1, valve body; 2, handwheel; 3, rotating shaft; 4, rotating plate; 5, protective plate; 6, first groove; 7, first positioning plate; 8, magnetic block; 9, second positioning plate; 10, second groove; 11, first rubber layer; 12, fixing block; 13, bolt; 14, nut; 15, second rubber layer; 16, filter screen. Detailed Description of the Invention

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0020] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Without further statement, the above terms have no special meaning and therefore should not be construed as limiting the protection scope of the present invention.

[0021] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0022] An anti-blocking valve, comprising a valve body 1 and a handwheel 2 for controlling the valve body 1 to be in an open or closed state. The handwheel 2 is provided at the top of the valve body 1 and can rotate. A rotating shaft 3 is provided at the bottom of the valve body 1. A rotating plate 4 is rotatably connected to the outside of the rotating shaft 3. Arc-shaped protective plates 5 are fixedly connected to both ends of the outside of the rotating plate 4. A first groove 6 with an arc-shaped edge is opened on the inner side of the rotating plate 4. A filter screen 16 is closely attached to the inner side of the rotating plate 4. A first positioning plate 7 is fixedly connected to one side of the filter screen 16, and a magnetic block 8 is provided inside the first positioning plate 7. A second positioning plate 9 with an arc-shaped outer edge is fixedly connected to the other side of the filter screen 16. A second groove 10 is opened inside the valve body 1. Fixed blocks 12 with an arc-shaped bottom surface are fixedly connected to both the rotating plate 4 and the top of the valve body 1. Bolts 13 penetrate through the fixed blocks 12, and nuts 14 are spirally connected to the outside of one end of the bolts 13. By providing a detachable filtering device, impurities in the liquid are not easily blocked by the valve body 1, and at the same time, the filtering device can be replaced. The sealing effect of the valve body 1 is increased by providing two rubber layers.

[0023] A first rubber layer 11 is fixedly connected to the inner side of the protective plate 5. The first rubber layer 11 is in close contact with the valve body 1, enhancing the sealing effect inside the valve body 1. The filter screen 16 consists of two parts, a frame and a filter mesh. The frame of the filter screen 16 is in close contact with the inner side of the rotating plate 4, facilitating the installation of the filter screen 16. The rotating plate 4 is made of metal. The first positioning plate 7 is in close contact with the first groove 6 formed inside the rotating plate 4, facilitating the fixation of the filter screen 16. One side of the nut 14 is in close contact with the fixing block 12 at the top of the valve body 1. A second rubber layer 15 is fixedly connected to one side of the rotating plate 4, facilitating the fixation after the rotation of the rotating plate 4 and further enhancing the sealing effect inside the valve body 1.

[0024] Working process: When the anti-blocking valve is in use, first connect both ends of the valve body 1 to the pipeline for installation. The liquid flows from right to left in the pipeline. When it reaches the filter screen 16 provided inside the valve body 1, it filters the liquid. The filtered liquid continues to move to the right. At this time, the liquid is not likely to cause blockage at the central position of the valve body 1. When the filter screen 16 has been used for a long time or the right part of the filter mesh is blocked by the accumulated impurities, resulting in a decrease in the liquid flow rate, the user empties the liquid in the pipeline, then rotates the nut 14 to one side until it is removed, and then takes out the bolt 13 from the fixing block 12. The user holds the fixing block 12 at the top of the rotating plate 4 and rotates it to one side. The rotating plate 4 drives the filter screen 16 to rotate simultaneously, and at the same time drives the second positioning plate 9 provided on one side of the filter screen 16 to rotate inside the second groove 10 formed inside the valve body 1. After rotating to the appropriate position, the user takes out the filter screen 16 from the rotating plate 4, and can simply clean the inner walls of the valve body 1 on both sides of the rotating plate 4. Then place a new filter screen 16 at the rotating plate 4. The first positioning plate 7 is inserted into the first groove 6. Since the rotating plate 4 is made of metal and there is a magnetic block 8 inside the first positioning plate 7, at this time, the first positioning plate 7 and the filter screen 16 are fixed inside the rotating plate 4. Then rotate the rotating plate 4 in the opposite direction until the first rubber layer 11 on the inner side of the protective plate 5 is in close contact with the surface of the valve body 1. Then hold the bolt 13 and pass it through the two fixing blocks 12. Insert the nut 14 into one end of the bolt 13 and rotate it until it is in close contact with one of the fixing blocks 12 to fix the rotating plate 4. By providing the second rubber layer 15 at one end of the rotating plate 4, the sealing effect inside the valve body 1 is enhanced. By providing a detachable filtering device, impurities in the liquid are not likely to cause blockage to the valve body 1, and at the same time, the filtering device can be replaced. By providing two rubber layers, the sealing effect at the valve body 1 is enhanced.

[0025] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. The standard parts used in this utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, details are not described herein again.

[0026] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An anti-blocking valve, comprising a valve body (1) and a hand wheel (2) for controlling the valve body (1) to be in an open or closed state, characterized in that: A rotatable hand wheel (2) is provided at the top of the valve body (1), a rotating shaft (3) is provided at the bottom of the valve body (1), a rotating plate (4) is rotatably connected to the outer side of the rotating shaft (3), arc-shaped protective plates (5) are fixedly connected to the two ends of the outer side of the rotating plate (4), a first groove (6) with an arc-shaped edge is provided on the inner side of the rotating plate (4), a filter screen (16) is tightly fitted on the inner side of the rotating plate (4), and a first positioning plate is fixedly connected to one side of the filter screen (16). (7), a magnetic block (8) is provided in the first positioning plate (7), a second positioning plate (9) is fixedly connected to the other side of the filter screen (16) and is arranged in an arc shape at the outer edge, a second groove (10) is provided on the inner side of the valve body (1), the rotating plate (4) and the top of the valve body (1) are fixedly connected to a fixing block (12) with an arc shape on the bottom surface, a bolt (13) passes through the fixing block (12), and a nut (14) is spirally connected to the outer side of one end of the bolt (13).

2. The anti-blocking valve according to claim 1, characterized in that: A first rubber layer (11) is fixedly connected to the inner side of the protective plate (5), and the first rubber layer (11) and the valve body (1) are tightly fitted.

3. The anti-blocking valve according to claim 1, characterized in that: The filter screen (16) is composed of two parts: a frame and a filter screen. The frame of the filter screen (16) is tightly fitted to the inner side of the rotating plate (4).

4. The anti-blocking valve according to claim 1, characterized in that: The rotating plate (4) is made of metal, and the first positioning plate (7) is tightly fitted with a first groove (6) provided in the rotating plate (4).

5. The anti-blocking valve according to claim 1, characterized in that: One side of the nut (14) is tightly fitted to the fixed block (12) at the top of the valve body (1), and one side of the rotating plate (4) is fixedly connected to a second rubber layer (15).

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