A slide gate valve

Abstract

This application relates to the field of valve technology, and provides a slide gate valve, including a valve body and a slide gate. The valve body has an ash inlet at the top and an ash outlet at the bottom. The slide gate is larger than the ash inlet and outlet. A slot is provided inside the valve body, and an insertion port communicating with the slot is provided on one side of the valve body. A fixed cover plate is provided outside the insertion port, and the fixed cover plate is sealed to the valve body. A first sealing gasket is provided outside the fixed cover plate. The first sealing gasket and the fixed cover plate have a channel communicating with the insertion port. A movable cover plate is provided at one end of the slide gate. When the slide gate is inserted into the valve body, the movable cover plate and the fixed cover plate are connected by a snap fastener and press the first sealing gasket together. The movable cover plate presses and adheres to the first sealing gasket, preventing wear and effectively ensuring its service life and sealing effect, while also facilitating future replacement.

Description

Technical Field

[0001] This application belongs to the field of valve technology, and more specifically, relates to a slide gate valve. Background Technology

[0002] With increasingly stringent requirements for environmental protection and occupational health in China, various new types of environmental protection equipment are emerging. In the field of dust filtration, high-efficiency filter cartridge dust collectors are becoming increasingly widely used, and the sealing requirements for each component of the dust collector are becoming more stringent. The slide gate valve between the dust collector's ash hopper and ash bucket is a key component for sealing the ash discharge.

[0003] A slide gate valve typically consists of a valve plate and a valve body. The valve body has an insertion port for the valve plate to be inserted, and the valve body has a sealing groove with a sealing strip inside. When the valve is closed, the sealing strip in the sealing groove is in close contact with the valve plate to provide a seal and prevent dust from escaping from the insertion port. However, when the valve is open, the sealing groove is empty, and dust can easily enter, causing incomplete closure. Alternatively, frequent friction between the valve and the sealing strip can wear down the sealing strip, resulting in poor sealing and dust leakage. Utility Model Content

[0004] In view of the problem of dust leakage in the existing plug-in valve, the purpose of this application is to provide a plug-in valve. By setting a sealing ring between the valve plate and the valve body and moving the sealing ring to the outside of the valve body, the sealing ring does not need to be in frictional contact with the valve, thereby extending the service life of the sealing ring and ensuring the sealing effect, and preventing dust leakage.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a slide gate valve is provided, including a valve body and a slide gate. The valve body has an ash inlet at the top and an ash outlet at the bottom. The size of the slide gate is larger than the size of the ash outlet and the ash inlet. The valve body has a slot. One side of the valve body has an insertion port communicating with the slot. A fixed cover plate is provided on the outside of the insertion port. The fixed cover plate is sealed to the valve body. A first sealing gasket is provided on the outside of the fixed cover plate. The first sealing gasket and the fixed cover plate have a channel communicating with the insertion port. One end of the slide gate has a movable cover plate. When the slide gate is inserted into the valve body, the movable cover plate and the fixed cover plate are connected by a snap fastener and squeeze the first sealing gasket.

[0006] In one embodiment, a second sealing gasket is provided on the inner side of the fixed cover plate.

[0007] In one embodiment, the fixed cover plate is connected to the valve body by a plurality of fastening screws.

[0008] In one embodiment, the movable cover plate is provided with clearance holes corresponding to each of the fastening screws.

[0009] In one embodiment, the movable cover is provided with a handle on its outer side.

[0010] In one embodiment, two latches are provided and located at both ends of the movable cover plate and the fixed cover plate, respectively.

[0011] In one embodiment, the valve body includes an upper plate, a middle plate, and a lower plate that are sealed together. The upper plate and the lower plate are both rectangular frame plates. The upper plate is provided with an ash inlet, and the lower plate is provided with an ash outlet. The middle plate is a U-shaped plate, and the opening of the middle plate faces the insertion port.

[0012] In one embodiment, the lower surface of the lower plate is provided with a third sealing gasket.

[0013] The beneficial effects of the slide gate valve provided in this application are as follows: the sealing connection between the fixed cover plate and the valve body means that only the insertion port needs to be sealed; the first sealing gasket and the snap fastener are set between the movable cover plate and the fixed cover plate to compress and seal between the fixed cover plate and the movable cover plate, which can effectively prevent dust from leaking from the insertion port; the movable cover plate fits and compresses the first sealing gasket, which will not cause wear on the first sealing gasket, effectively ensuring the service life and sealing effect of the first sealing gasket, and making it convenient to replace later. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram illustrating the relationship between the slide gate valve and the ash hopper provided in an embodiment of this application.

[0016] Figure 2 This is a schematic diagram of the overall structure of the slide gate valve provided in the embodiments of this application;

[0017] Figure 3 A cross-sectional view of the slide gate valve provided in an embodiment of this application;

[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 A schematic diagram of the valve body and fixed cover plate of the slide gate valve provided in the embodiments of this application;

[0020] Figure 6This is a schematic diagram of the structure of the middle plate and lower plate of the slide valve provided in the embodiments of this application;

[0021] Figure 7 This is a schematic diagram of the slide plate, fixed cover plate, and movable cover plate of the slide valve provided in the embodiments of this application.

[0022] The following are the labeling elements in the figure:

[0023] 1. Valve body; 11. Upper plate; 12. Middle plate; 13. Lower plate; 2. Insert plate; 3. Fixed cover plate; 4. First sealing gasket; 5. Movable cover plate; 51. Clearance hole; 52. Handle; 6. Buckle; 7. Second sealing gasket; 8. Fastening screw; 9. Third sealing gasket; 10. Ash hopper. Detailed Implementation

[0024] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0025] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0026] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0028] like Figures 1-7As shown, a slide gate valve provided in this application embodiment will now be described. This slide gate valve is used to connect to an ash hopper 10 and an ash bucket. Specifically, it includes a valve body 1 and a slide gate 2. The valve body 1 has an ash inlet at the top and an ash outlet at the bottom. The ash inlet communicates with the bottom of the ash hopper 10, and the ash outlet communicates with the top of the ash bucket. The slide gate 2 is larger than both the ash inlet and outlet, so that when the slide gate 2 is between the ash inlet and outlet, it can close the gap between them.

[0029] The valve body 1 has a slot inside, and one side of the valve body 1 has an insertion port communicating with the slot. An insert plate 2 is inserted through the insertion port and slides along the slot to close the valve body 1. Specifically, the valve body 1 includes an upper plate 11, a middle plate 12, and a lower plate 13 that are sealed together. Both the upper plate 11 and the lower plate 13 are rectangular frames. The upper plate 11 has an ash inlet, and the lower plate 13 has an ash outlet. The middle plate 12 is a U-shaped plate with its opening facing the insertion port. The upper plate 11 is welded to the bottom of the ash hopper 10. The upper plate 11, middle plate 12, and lower plate 13 are welded and fixed in sequence, with the U-shaped middle plate 12 forming the slot. In this embodiment, when the valve body 1 is connected to the ash hopper 10 and the ash bucket, the only risk of dust leakage from the valve body 1 is at the insertion port.

[0030] For this purpose, a fixed cover plate 3 is provided on the outside of the insertion port, and the fixed cover plate 3 is sealed to the valve body 1. Specifically, the fixed cover plate 3 is connected to the valve body 1 by several fastening screws 8. For example, the fixed cover plate 3 is detachably connected to the valve body 1 by four fastening screws 8. A second sealing gasket 7 is provided on the inside of the fixed cover plate 3. The second sealing gasket 7 is used to achieve a sealed connection between the fixed cover plate 3 and the valve body 1.

[0031] A first sealing gasket 4 is provided on the outside of the fixed cover plate 3. Both the first sealing gasket 4, the fixed cover plate 3, and the second sealing gasket 7 have channels communicating with the insertion port, allowing the insertion plate 2 to be inserted. One end of the insertion plate 2 has a movable cover plate 5. When the insertion plate 2 is inserted into the valve body 1, the movable cover plate 5 is fixedly connected to the fixed cover plate 3 via a snap fastener 6, pressing down on the first sealing gasket 4. The first sealing gasket 4 is deformed by the compression, creating a ring seal on the insertion plate 2 to prevent dust leakage. By placing the sealing gasket on the outside of the valve body 1 and using the movable cover plate 5 to press and adhere to the first sealing gasket 4, wear on the first sealing gasket 4 is prevented, effectively ensuring its service life and sealing effect, and facilitating future replacement.

[0032] In this embodiment, the movable cover plate 5 is provided with clearance holes 51 corresponding to each fastening screw 8. The size of the clearance holes 51 is larger than the size of the fastening screw 8. The clearance holes 51 are provided to avoid interference when the fastening screw 8 is pressed against the first sealing gasket 4 by the movable cover plate 5 and the fixed cover plate 3.

[0033] In this embodiment, a handle 52 is provided on the outer side of the movable cover plate 5. The handle 52 is for the convenience of inserting the insert plate 2.

[0034] In this embodiment, two latches 6 are provided and located at both ends of the movable cover plate 5 and the fixed cover plate 3, respectively. The movable cover plate 5 and the fixed cover plate 3 can be detachably connected by the latches 6.

[0035] In this embodiment, a third sealing gasket 9 is provided on the lower surface of the lower plate 13. The third sealing gasket 9 is used to achieve a sealed connection between the ash bucket and the valve body 1.

[0036] The slide gate valve provided in this embodiment has the advantages of being simple and convenient to operate, not easily damaged, easy to replace, having good sealing performance, and long service life.

[0037] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A slide gate valve, comprising a valve body (1) and a slide gate (2), characterized in that: The valve body (1) has an ash inlet at the top and an ash outlet at the bottom. The size of the insert plate (2) is larger than the size of the ash outlet and the ash inlet. The valve body (1) has a slot inside. The valve body (1) has an insertion port on one side that communicates with the slot. The insertion port has a fixed cover plate (3) on the outside. The fixed cover plate (3) is sealed to the valve body (1). The fixed cover plate (3) has a first sealing gasket (4) on the outside. The first sealing gasket (4) and the fixed cover plate (3) have a channel communicating with the insertion port. One end of the insert plate (2) has a movable cover plate (5). When the insert plate (2) is inserted into the valve body (1), the movable cover plate (5) and the fixed cover plate (3) are connected by a buckle (6) and squeeze the first sealing gasket (4).

2. The slide gate valve as described in claim 1, characterized in that: The inner side of the fixed cover plate (3) is provided with a second sealing gasket (7).

3. The slide gate valve as described in claim 2, characterized in that: The fixed cover plate (3) is connected to the valve body (1) by a number of fastening screws (8).

4. The slide gate valve as described in claim 3, characterized in that: The movable cover plate (5) is provided with clearance holes (51) corresponding to each of the fastening screws (8).

5. The slide gate valve as described in any one of claims 1-4, characterized in that: The movable cover plate (5) is provided with a handle (52) on the outside.

6. The slide gate valve as described in claim 5, characterized in that: Two buckles (6) are provided and are located at both ends of the movable cover plate (5) and the fixed cover plate (3), respectively.

7. The slide gate valve as described in claim 6, characterized in that: The valve body (1) includes an upper plate (11), a middle plate (12), and a lower plate (13) that are sealed together. The upper plate (11) and the lower plate (13) are both rectangular frames. The upper plate (11) is provided with an ash inlet, and the lower plate (13) is provided with an ash outlet. The middle plate (12) is a U-shaped plate, and the opening of the middle plate (12) faces the insertion port.

8. The slide gate valve as described in claim 7, characterized in that: The lower surface of the lower plate (13) is provided with a third sealing gasket (9).

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