Gate valve device with cleaning function

Abstract

The utility model relates to the field of fluid control equipment, and discloses a gate valve device with a cleaning function, which comprises a valve body, the top of the valve body is fixedly connected with a valve cover, the bottom of the inner wall of the valve body is fixedly connected with two valve seats, and the bottoms of the inner walls of the two valve seats are fixedly connected with scrapers. Sealing rings are fixedly connected to the opposite sides of the two valve seats, a valve plate is arranged between the two valve seats, a connecting rod is fixedly connected to the top of the valve plate, a valve rod is arranged at the top of the connecting rod, and a fixing groove is formed in the outer surface of the connecting rod. According to the utility model, the connecting rod is arranged between the valve plate and the valve rod, so that when the valve plate is replaced, the connecting rod is inserted into the connecting groove at the bottom of the valve rod, and then the fixing blocks on the outer surfaces of the first connecting plate and the second connecting plate penetrate through the left side and the right side of the connecting groove and are inserted into the fixing grooves in the connecting rod to finish quick fixation; the problem that the valve plate is abraded and replaced tediously under the working condition of frequent starting and stopping of the gate valve is solved.

Description

Technical Field

[0001] This utility model relates to the field of fluid control equipment, and in particular to a gate valve device with a cleaning function. Background Technology

[0002] In many fields such as industrial production, municipal water supply, and petrochemicals, gate valves are commonly used control components for cutting off or connecting the flow of media. Gate valves control the opening and closing of the fluid passage and the flow rate by raising and lowering the gate. When the gate is tightly fitted with the valve seat, the valve is closed and prevents the fluid from passing through; when the gate is raised, the fluid can flow in the valve body.

[0003] Currently available gate valve devices with cleaning functions work by moving the gate and sealing surface components relative to each other during valve opening and closing, which acts like a scraper to remove debris adhering to the sealing surface. However, the combination of frequent start-stop operation and self-cleaning scraping increases valve wear and energy consumption, reduces valve lifespan, and makes valve plate replacement troublesome due to the complex structure of gate valves. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a gate valve device with a cleaning function, which aims to solve the problem of cumbersome replacement of valve plates due to frequent start-stop conditions.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gate valve device with cleaning function, comprising a valve body, a valve cover fixedly connected to the top of the valve body, two valve seats fixedly connected to the bottom of the inner wall of the valve body, a scraper fixedly connected to the bottom of the inner wall of each of the two valve seats, a sealing ring fixedly connected to the opposite side of each of the two valve seats, a valve plate disposed between the two valve seats, a connecting rod fixedly connected to the top of the valve plate, a valve stem disposed at the top of the connecting rod, a fixing groove formed on the outer surface of the connecting rod, a connecting groove formed on the outer surface of the valve stem, a first connecting plate slidably connected to the top of the inner wall of the connecting groove, a second connecting plate slidably connected to the outer surface of the first connecting plate, a tension spring fixedly connected between the first connecting plate and the second connecting plate, two fixing blocks fixedly connected to the opposite side of each of the first connecting plate and the second connecting plate, and an auxiliary component disposed on the top of the valve cover.

[0006] Preferably, the auxiliary component includes a connecting pipe that is rotatably connected to the valve cover. A handle is fixedly connected to the top of the connecting pipe, and a housing is provided on the top of the handle. A motor is fixedly connected to the top of the inner wall of the housing, and a locking component is fixedly provided at the output end of the motor. Two buttons are fixedly connected to the front side of the housing.

[0007] Preferably, the sealing ring and the scraper are tightly fitted to the valve plate, and the scraper scrapes off the debris on the outer surface of the valve plate when the valve plate moves.

[0008] Preferably, the top of the valve stem extends through and to the top of the inner wall of the connecting pipe, and the valve stem is threadedly connected to the connecting pipe.

[0009] Preferably, the valve stem and the valve cover are slidably connected, and the outer surface of the valve stem and the valve cover are engaged with each other.

[0010] Preferably, the fixing block and the fixing groove are tightly fitted together, and the connecting rod and the connecting groove are tightly fitted together.

[0011] Preferably, the first connecting plate and the second connecting plate extend through and to the outer surface of the valve stem on opposite sides.

[0012] Preferably, the engaging component is tightly fitted to the handle, and the rotation of the engaging component causes the handle to rotate.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, by setting a connecting rod between the valve plate and the valve stem, when replacing the valve plate, the connecting rod is inserted into the connecting groove at the bottom of the valve stem, and then the fixing blocks on the outer surfaces of the first connecting plate and the second connecting plate pass through the left and right sides of the connecting groove and are inserted into the fixing groove on the connecting rod to complete the quick fixation, thus solving the problem of cumbersome replacement of valve plate wear under the condition of frequent start and stop of gate valve.

[0015] 2. In this utility model, by engaging the locking component at the top of the handle, when the valve plate needs to be quickly opened or closed, the motor drives the locking component to rotate rapidly, thereby causing the valve stem to move up and down as the connecting pipe rotates, thus solving the problem of the valve plate running too slowly in the case of rapid cutting or emergency braking. Attached Figure Description

[0016] Figure 1 A perspective view of the gate valve device with cleaning function proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the valve plate of the gate valve device with cleaning function proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the scraper of the gate valve device with cleaning function proposed in this utility model;

[0019] Figure 4 A schematic diagram of the fixing block of the gate valve device with cleaning function proposed in this utility model;

[0020] Figure 5 This is a schematic diagram of the locking component of the gate valve device with cleaning function proposed in this utility model.

[0021] Legend:

[0022] 1. Valve body; 2. Valve cover; 3. Valve stem; 4. Connecting rod; 5. Valve plate; 6. Valve seat; 7. Scraper; 8. Sealing ring; 9. Connecting groove; 10. Fixing groove; 11. Fixing block; 12. First connecting plate; 13. Second connecting plate; 14. Tension spring; 15. Connecting pipe; 16. Housing; 17. Motor; 18. Clamping part; 19. Button; 20. Handle. Detailed Implementation

[0023] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Reference Figures 1-4 An embodiment of this utility model provides a gate valve device with a cleaning function, including a valve body 1, a valve cover 2 fixedly connected to the top of the valve body 1, two valve seats 6 fixedly connected to the bottom of the inner wall of the valve body 1, a scraper 7 fixedly connected to the bottom of the inner wall of each of the two valve seats 6, a sealing ring 8 fixedly connected to the opposite side of each of the two valve seats 6, a valve plate 5 disposed between the two valve seats 6, a connecting rod 4 fixedly connected to the top of the valve plate 5, a valve stem 3 disposed at the top of the connecting rod 4, a fixing groove 10 opened on the outer surface of the connecting rod 4, a connecting groove 9 opened on the outer surface of the valve stem 3, a first connecting plate 12 slidably connected to the top of the inner wall of the connecting groove 9, a second connecting plate 13 slidably connected to the outer surface of the first connecting plate 12, a tension spring 14 fixedly connected between the first connecting plate 12 and the second connecting plate 13, two fixing blocks 11 fixedly connected to the opposite side of each of the first connecting plate 12 and the second connecting plate 13, and an auxiliary component disposed on the top of the valve cover 2.

[0025] Specifically, during the operation of the gate valve, when the outer surface of the valve plate 5 is contaminated with debris from the water flow, the valve plate 5 moves up and down with the opening and closing of the gate valve. The debris on the outer surface of the valve plate 5 is scraped clean by the scrapers 7 on both sides. The scraped debris is flushed out of the gate valve by the water flow. When the valve plate 5 is damaged due to frequent use, the valve cover 2 is removed. The first connecting plate 12 and the second connecting plate 13 on the outer surface of the valve stem 3 are pressed to move them outward, thereby driving the four connecting blocks to move outward. After the connecting blocks release the connecting rod 4, the valve plate 5 and the connecting rod 4 are removed together. The new valve plate 5 and the connecting rod 4 are then placed at the bottom of the valve stem 3. The first connecting plate 12 and the second connecting plate 13 are pressed again to insert the connecting rod 4 into the connecting groove 9. The first connecting plate 12 and the second connecting plate 13 are released so that the fixing block 11 engages with the fixing groove 10, thus completing the fixation. This solves the problem of cumbersome replacement of the valve plate 5 due to frequent start and stop of the gate valve.

[0026] Reference Figure 5 The auxiliary components include a connecting pipe 15, which is rotatably connected to the valve cover 2. A handle 20 is fixedly connected to the top of the connecting pipe 15. A housing 16 is provided on the top of the handle 20. A motor 17 is fixedly connected to the top of the inner wall of the housing 16. A locking piece 18 is fixedly provided at the output end of the motor 17. Two buttons 19 are fixedly connected to the front side of the housing 16.

[0027] Specifically, when the gate of the gate valve needs to be closed and opened urgently, the locking member 18 is placed on top of the handle 20 to lock the handle 20, and the rotation direction of the motor 17 on the inner wall of the housing 16 is controlled by pressing the button 19 on the outer surface of the housing 16, thereby driving the handle 20 to rotate clockwise and counterclockwise. While the handle 20 is rotating, the connecting pipe 15 is also rotated. The rotation of the connecting pipe 15 drives the valve stem 3 to move up and down, solving the problem of the valve plate 5 running too slowly in the case of rapid cut-off or emergency braking.

[0028] Reference Figure 4 The sealing ring 8 and the scraper 7 are tightly fitted with the valve plate 5, and the scraper 7 scrapes off the debris on the outer surface of the valve plate 5 when the valve plate 5 moves.

[0029] Specifically, when the valve plate 5 moves up and down driven by the valve stem 3, the scraper 7 and the valve plate 5 are tightly fitted together, thereby scraping off the debris on the outer surface of the valve plate 5, achieving the purpose of automatic cleaning.

[0030] Reference Figure 2 The top of the valve stem 3 extends through and to the top of the inner wall of the connecting pipe 15, and the valve stem 3 and the connecting pipe 15 are connected by threads.

[0031] Specifically, the valve stem 3 is installed in the inner wall of the connecting pipe 15. When the connecting pipe 15 rotates, the valve stem 3 is driven to move together due to the threaded connection between it and the valve stem 3.

[0032] Reference Figure 2 The valve stem 3 and the valve cover 2 are slidably connected, and the outer surface of the valve stem 3 and the valve cover 2 are engaged with each other.

[0033] Specifically, when the valve stem 3 is driven to move by the connecting pipe 15, due to the engagement between the valve stem 3 and the valve cover 2, the valve stem 3 will only move up and down and will not be driven to rotate.

[0034] Reference Figure 4 The fixing block 11 and the fixing groove 10 are tightly fitted together, and the connecting rod 4 and the connecting groove 9 are tightly fitted together.

[0035] Specifically, the fixing block 11 fixes the connecting rod 4 in the connecting groove 9 at the bottom of the valve stem 3 by inserting it into the fixing groove 10.

[0036] Reference Figure 4 The first connecting plate 12 and the second connecting plate 13 both penetrate and extend to the outer surface of the valve stem 3 on opposite sides.

[0037] Specifically, by extending one side of the first connecting plate 12 and the second connecting plate 13 outside the valve stem 3, the first connecting plate 12 and the second connecting plate 13 can be moved outside the valve stem 3.

[0038] Reference Figure 5 The locking part 18 and the handle 20 are tightly fitted together, and the rotation of the locking part 18 causes the handle 20 to rotate.

[0039] Specifically, when the motor 17 is started, the motor 17 drives the locking part 18 to rotate. Since the locking part 18 locks the handle 20, it drives the handle 20 to rotate, thereby controlling the opening and closing of the control valve plate 5.

[0040] Working principle: When the valve plate 5 is damaged due to frequent use, the valve cover 2 is removed. By pressing the first connecting plate 12 and the second connecting plate 13 on the outer surface of the valve stem 3, the two plates move outward, thereby driving the four connecting blocks to move outward. After the connecting blocks release the connecting rod 4, the valve plate 5 and the connecting rod 4 are removed together. Then, the new valve plate 5 and the connecting rod 4 are placed at the bottom of the valve stem 3. The first connecting plate 12 and the second connecting plate 13 are pressed again to insert the connecting rod 4 into the connecting groove 9. The first connecting plate 12 and the second connecting plate 13 are released so that the fixing block 11 locks into the fixing groove 10, completing the replacement. During the operation of the gate valve, due to the threaded connection between the connecting pipe 15 and the valve stem 3, when the valve stem 3 is driven by the connecting pipe 15 to move, the valve stem 3 will only move up and down due to the locking between the valve stem 3 and the valve cover 2, thereby driving the valve plate 5 to move up and down. Due to the tight fit between the scraper 7 and the valve plate 5, the debris on the outer surface of the valve plate 5 is scraped off, achieving the purpose of automatic cleaning.

[0041] When the gate of the gate valve needs to be closed and opened urgently, it can be manually closed and opened by placing the locking piece 18 on top of the handle 20 to lock the handle 20, and by pressing the button 19 on the outer surface of the housing 16 to control the rotation direction of the motor 17 on the inner wall of the housing 16, thereby driving the handle 20 to rotate clockwise and counterclockwise. While the handle 20 is rotating, the connecting pipe 15 is also rotated. The rotation of the connecting pipe 15 drives the valve stem 3 to move up and down, thereby performing rapid opening and closing.

[0042] 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 gate valve device with cleaning function, comprising a valve body (1), characterized in that: The valve body (1) is fixedly connected to the top of the valve cover (2), and two valve seats (6) are fixedly connected to the bottom of the inner wall of the valve body (1). A scraper (7) is fixedly connected to the bottom of the inner wall of each of the two valve seats (6). A sealing ring (8) is fixedly connected to the opposite side of each of the two valve seats (6). A valve plate (5) is provided between the two valve seats (6). A connecting rod (4) is fixedly connected to the top of the valve plate (5). A valve stem (3) is provided on the top of the connecting rod (4). A fixing groove (10) is provided on the outer surface of the connecting rod (4). A connecting groove (9) is provided on the outer surface of the valve stem (3). A first connecting plate (12) is slidably connected to the top of the inner wall of the connecting groove (9). A second connecting plate (13) is slidably connected to the outer surface of the first connecting plate (12). A tension spring (14) is fixedly connected between the first connecting plate (12) and the second connecting plate (13). Two fixing blocks (11) are fixedly connected to the opposite side of each of the first connecting plate (12) and the second connecting plate (13). An auxiliary component is provided on the top of the valve cover (2).

2. The gate valve device with cleaning function according to claim 1, characterized in that: The auxiliary component includes a connecting pipe (15), which is rotatably connected to the valve cover (2). A handle (20) is fixedly connected to the top of the connecting pipe (15). A housing (16) is provided on the top of the handle (20). A motor (17) is fixedly connected to the top of the inner wall of the housing (16). A locking piece (18) is fixedly provided at the output end of the motor (17). Two buttons (19) are fixedly connected to the front side of the housing (16).

3. The gate valve device with cleaning function according to claim 1, characterized in that: The sealing ring (8) and scraper (7) are tightly fitted with the valve plate (5), and the scraper (7) scrapes off the debris on the outer surface of the valve plate (5) when the valve plate (5) moves.

4. The gate valve device with cleaning function according to claim 1, characterized in that: The top of the valve stem (3) extends through and to the top of the inner wall of the connecting pipe (15), and the valve stem (3) and the connecting pipe (15) are threaded together.

5. The gate valve device with cleaning function according to claim 1, characterized in that: The valve stem (3) is slidably connected to the valve cover (2), and the outer surface of the valve stem (3) is engaged with the valve cover (2).

6. The gate valve device with cleaning function according to claim 1, characterized in that: The fixing block (11) is tightly fitted with the fixing groove (10), and the connecting rod (4) is tightly fitted with the connecting groove (9).

7. The gate valve device with cleaning function according to claim 1, characterized in that: The first connecting plate (12) and the second connecting plate (13) extend through and to the outer surface of the valve stem (3) on opposite sides.

8. The gate valve device with cleaning function according to claim 2, characterized in that: The locking member (18) is tightly fitted with the handle (20), and the rotation of the locking member (18) causes the handle (20) to rotate.

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