Multifunctional gate valve with replaceable filter screen

Abstract

The utility model relates to a gate valve, in particular to a multifunctional gate valve with a replaceable filter screen. Comprising an inserting plate, a lower cover plate, fixing bolts, a filter screen, a sealing strip, an upper cover plate and a channel steel frame, and the lower cover plate and the upper cover plate are fixed to the channel steel frame through the fixing bolts to form a shell of the gate valve. And the other ends of the lower cover plate and the upper cover plate are respectively connected with upstream and downstream equipment of the gate valve through flanges and the like. The filter screen is embedded in the inserting plate through the seam allowance, the inserting plate and the filter screen are installed between the lower cover plate and the upper cover plate, the sealing performance of the whole gate valve is guaranteed through the sealing strip, a pulling handle is arranged at one end of the inserting plate, a limiting device is arranged at the other end of the inserting plate, and it is guaranteed that the gate valve cannot fall off when opened and closed for use. When the filter screen is blocked, abraded and the like and needs to be cleaned and replaced, the filter screen can be replaced only by pulling out the insertion plate, and convenience is provided for maintenance of equipment.

Description

Technical Field

[0001] The utility model relates to a plug-in valve, in particular to a multifunctional plug-in valve with a replaceable filter screen. Background Art

[0002] The dust removal system is a type of air conveying system, also known as a pneumatic conveying system or an airflow conveying system. It refers to a method of conveying powders and granules in a pipeline using airflow as a driving force. The air conveying system can integrate multiple production links, so it has been widely used in many industries.

[0003] The air conveying system is the most important part of the dust removal system in the tobacco industry. It can transport process materials to the required location through the air conveying system. At the same time, it maintains linkage control with other systems through the electronic control system.

[0004] The end of the air delivery system is designed with a gate valve for manual material connection during production and for later maintenance. The existing gate valve only has the functions of opening and closing, and does not have filtering and protection functions. There is a risk of system blockage and safety risks of injury. Adding a protective net between the front and rear flanges of the gate valve also causes problems such as inconvenience in maintenance. Summary of the invention

[0005] In order to overcome the shortcomings of the above-mentioned prior art, the utility model provides a multifunctional gate valve with replaceable filter screen. When the air delivery system is running, the gate valve has both filtering and protection functions. When the gate valve filter screen is clogged or worn, the filter screen can be quickly opened for cleaning or replacement, providing convenience for troubleshooting.

[0006] The utility model is realized through the following technical scheme: a multifunctional gate valve with replaceable filter screen, comprising a gate, a lower cover plate, fixing bolts, a filter screen, a sealing strip, an upper cover plate, and a channel steel frame, wherein the lower cover plate and the upper cover plate are fixed on the channel steel frame by fixing bolts to form a shell of the gate valve, the other ends of the lower cover plate and the upper cover plate are respectively connected to the upstream and downstream equipment of the gate valve by flanges, the filter screen is embedded and installed on the gate plate through a stopper, the gate plate and the filter screen are installed in the middle of the lower cover plate and the upper cover plate, and the sealing strip is arranged between the lower cover plate and the upper cover plate.

[0007] One end of the plug plate is provided with a pulling handle, and the other end of the plug plate is provided with a limiting device, so that the plug plate can be pulled in and out of the plug plate valve.

[0008] The beneficial effect of the utility model is that when the filter screen is clogged, worn, etc. and needs to be cleaned and replaced, the filter screen can be replaced by simply pulling out the plug plate, which provides convenience for the repair and maintenance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The utility model is further described below based on the drawings and embodiments.

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 yes Figure 1 AA section view;

[0012] Figure 3 It is a structural schematic diagram of the utility model channel steel frame;

[0013] Figure 4 It is a structural schematic diagram of the upper cover plate of the utility model;

[0014] Figure 5 yes Figure 4 AA section view;

[0015] Figure 6 It is a structural schematic diagram of the lower cover plate of the utility model;

[0016] Figure 7 yes Figure 6 AA section view;

[0017] Figure 8 It is a structural schematic diagram of the plug board of the utility model;

[0018] Fig. 9 It is a side view of the plug board of the utility model;

[0019] Fig.10 It is a structural schematic diagram of the filter screen of the utility model.

[0020] In the figure: 1. plug plate; 2. lower cover plate; 3. fixing bolts; 4. filter screen; 5. sealing strip; 6. upper cover plate; 7. channel steel frame. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] like Figures 1 to 10 A multifunctional gate valve with a replaceable filter is shown, comprising a gate 1, a lower cover plate 2, fixing bolts 3, a filter screen 4, a sealing strip 5, an upper cover plate 6, and a channel steel frame 7. The lower cover plate 2 and the upper cover plate 6 are fixed to the channel steel frame 7 by fixing bolts 3 to form a shell of the gate valve. The other ends of the lower cover plate 2 and the upper cover plate 6 are respectively connected to the upstream and downstream equipment of the gate valve by flanges and the like. The filter screen 4 is embedded and installed on the gate 1 through a stopper. The gate 1 and the filter screen 4 are installed in the middle of the lower cover plate 2 and the upper cover plate 6. The sealing strip 5 ensures the overall sealing of the gate valve. A pulling handle is provided at one end of the gate 1, and a limiting device is provided at the other end to ensure that the gate valve will not fall off when it is opened or closed. When the filter screen 4 is blocked or worn and needs to be cleaned and replaced, the gate 1 only needs to be pulled out to replace the filter screen 4, which provides convenience for the maintenance of the equipment.

[0024] The plug plate 1 is processed into a stepped stopper, and the size of the annular outer circle processing plate on the filter screen 4 matches the plug plate 1, while ensuring the flatness of the plug plate 1 and the filter screen 4. The filter screen 4 is embedded and installed on the plug plate 1 through the stopper, and is installed as a whole between the lower cover plate 2 and the upper cover plate 6.

[0025] When the filter screen 4 is clogged, worn, etc. and needs to be cleaned and replaced, the filter screen 4 can be replaced by simply pulling out the plug plate 1, which provides convenience for the maintenance of the equipment.

[0026] This system is used in the material air conveying system. The gate valve not only has the opening and closing functions, but also has filtering and protection functions. When the gate valve filter is blocked or worn, it can be quickly opened for cleaning or replacement, which provides convenience for troubleshooting.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional gate valve with replaceable filter screen, Features: The invention comprises a plug plate (1), a lower cover plate (2), fixing bolts (3), a filter screen (4), a sealing strip (5), an upper cover plate (6), and a channel steel frame (7). The lower cover plate (2) and the upper cover plate (6) are fixed to the channel steel frame (7) by fixing bolts (3) to form a housing of the plug plate valve. The other ends of the lower cover plate (2) and the upper cover plate (6) are respectively connected to upstream and downstream equipment of the plug plate valve by flanges. The filter screen (4) is embedded and installed on the plug plate (1) by means of a stopper. The plug plate (1) and the filter screen (4) are installed between the lower cover plate (2) and the upper cover plate (6). The sealing strip (5) is arranged between the lower cover plate (2) and the upper cover plate (6).

2. A multifunctional gate valve with replaceable filter screen according to claim 1, Features: One end of the plug plate (1) is provided with a pulling handle, and the other end of the plug plate (1) is provided with a limiting device, so that the plug plate (1) can be pulled in and out of the plug plate valve.

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