Soft sealing gate valve convenient to replace

Abstract

The utility model relates to the technical field of soft sealing gate valves, in particular to a soft sealing gate valve convenient to replace, which comprises a valve body, flange plates, a valve cover, a valve rod, a hand wheel, a valve plate, a sealing component and a cleaning component. The two ends of the valve rod are connected with the hand wheel and the valve plate respectively, the sealing assembly is connected to the valve body, and the cleaning assembly is connected to the valve body. According to the utility model, the upstream and the downstream of the valve body are blocked through the blocking valve, a closed space is formed in the blocked valve body, so that a worker can conveniently disassemble and replace the valve plate, and the cleaning end on the cleaning assembly gradually enters an initial state when the valve plate moves from top to bottom to close the valve body; when the valve plate moves from bottom to top and stops sealing, the outer wall of the valve plate gradually makes contact with the cleaning end and the auxiliary end, and the outer wall of the valve plate is cleaned through pushing of the elastic ends on the cleaning end and the auxiliary end.

Description

Technical Field

[0001] The utility model relates to the technical field of soft-sealed gate valves, in particular to a soft-sealed gate valve which is convenient for replacing the gate valve. Background Art

[0002] Soft-sealed gate valve, industrial valve, the opening and closing part of the soft-sealed gate valve is the valve plate. The movement direction of the valve plate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The valve plate has two sealing surfaces. The two sealing surfaces of the most commonly used mode valve plate valve form a wedge shape, and the wedge angle varies with the valve parameters.

[0003] The Chinese patent with announcement number CN221525567U discloses a soft-sealed gate valve which is convenient for replacing the gate valve, belonging to the technical field of gate valves, which includes a valve body, a connecting groove is provided on the top of the valve body, and connecting plates are fixedly connected on opposite sides of the connecting groove, the top of the connecting plate is detachably connected to a connecting cover by connecting bolts, the top of the connecting cover is detachably connected to a top cover by connecting bolts, the top of the top cover is fixedly connected to a connecting sleeve, the inside of the connecting sleeve is vertically slidably connected to a valve stem, the two ends of the valve stem are respectively fixedly connected to a handwheel and a valve plate, and one end of the valve body is fixedly connected to a filter box; its beneficial effect is that by arranging a first stop valve and a second stop valve, people can block the water flow in the valve body by rotating the first stop valve and the second stop valve, which can avoid the staff wasting time looking for the valve of the external pipeline to close when repairing the valve, and facilitates the staff to repair and replace.

[0004] However, in the above technical solution, the gate valve body is only closed and the water flow is blocked by two blocking valves, so that the valve plate of the gate valve is replaced, and the water flow in the valve body is filtered through the filter to prevent it. However, the setting of the filter will increase the flow resistance of the liquid in the valve body, and the impurities contained in the liquid will easily damage the filter and the pipeline system when clogging the filter. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and to provide a soft-sealed gate valve which is convenient for replacing the gate valve.

[0006] The technical solution of the utility model is as follows: a soft-sealed gate valve which is convenient for replacing the gate valve, comprising a valve body, flanges being connected at both ends of the valve body, a valve cover being detachably connected to the valve body, a valve stem being connected to the valve cover, and a hand wheel and a valve plate being respectively connected at both ends of the valve stem; a closing component being connected to the valve body; when the closing component is in use, the two rotating ends of the closing component change from a horizontal state to a vertical state, and the rotating ends close the valve body to form an isolation space; a cleaning component being connected to the valve body; when the cleaning component is in use, the cleaning end of the cleaning component changes from a stationary state in contact with the inner wall of the valve body to a moving state, and the cleaning ends move toward each other and are tightly attached to the valve plate.

[0007] Preferably, the closing assembly includes two blocking valves arranged in parallel, the blocking valves are connected to the valve body, the valve core of the blocking valve is inside the valve body, and the control handle of the blocking valve is arranged outside the valve body; cleaning parts, the number of which corresponds to the blocking valves, and the cleaning parts are connected to the valve body.

[0008] Preferably, the cleaning member is composed of a symmetrically arranged arc plate and a cleaning brush. The symmetrically arranged arc plate is connected to the inner wall of the valve body, and the cleaning brush is connected to a side of the arc plate close to the stop valve.

[0009] Preferably, the cleaning component includes a mounting frame, which is detachably connected to the valve body; two movable plates are arranged in parallel, and the movable plates are slidably connected to the accommodating grooves opened on the mounting frame; a first elastic member, the number of which corresponds to the movable plate, and the two ends of the first elastic member are respectively connected to the accommodating grooves and the movable plate; a cleaning scraper, the number of which corresponds to the movable plate, and the cleaning scraper is connected to the end of the movable plate away from the elastic member; two auxiliary components are symmetrically arranged, and the auxiliary components are connected to the fixed frame. When the auxiliary components are in the auxiliary component state, the cleaning end of the auxiliary component moves more.

[0010] Preferably, the auxiliary component includes a rotating rod, which is rotatably connected in a groove opened on the mounting frame; a second elastic member, whose two ends are respectively connected to the groove and the rotating rod; a mounting plate, which is connected to one end of the rotating rod, and the mounting plate and the rotating rod are arranged in an L shape; and an auxiliary scraper, which is connected to the mounting plate.

[0011] Preferably, a plurality of dovetail blocks are connected to the installation frame, and the dovetail blocks are slidably connected to the dovetail grooves provided on the valve body.

[0012] Preferably, an acceleration ring is connected to the inner wall of the valve body, and the acceleration ring is located upstream of the valve body.

[0013] Compared with the prior art, the above technical solution of the present invention has the following beneficial technical effects:

[0014] In the utility model, two stopping valves are used to block the upstream and downstream of the valve body. After blocking, a closed space is formed in the valve body, which makes it convenient for the staff to disassemble and replace the valve plate. The cleaning end on the cleaning assembly gradually enters the initial state when the valve plate moves from top to bottom to close the valve body. When the valve plate moves from bottom to top to stop sealing, the outer wall of the valve plate gradually contacts the cleaning end and the auxiliary end. The outer wall of the valve plate is cleaned by the push of the elastic ends on the cleaning end and the auxiliary end to prevent impurities in the fluid from adhering to the sealing surface of the valve plate, thereby accelerating the wear of the valve plate and causing leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2Schematic diagram of the initial state of the valve plate;

[0017] Figure 3 This is a schematic diagram of the valve plate in use;

[0018] Figure 4 Schematic diagram of the installation frame structure;

[0019] Figure 5 for Figure 4 A magnified view of the structure at point A.

[0020] Figure numerals: 1. valve body; 2. flange; 3. valve cover; 4. valve stem; 5. handwheel; 6. valve plate; 7. check valve; 8. cleaning part; 9. curved plate; 10. cleaning brush; 11. mounting frame; 12. movable plate; 13. first elastic part; 14. cleaning scraper; 15. rotating rod; 16. second elastic part; 17. mounting plate; 18. auxiliary scraper; 19. dovetail block; 20. dovetail groove; 21. acceleration ring. DETAILED DESCRIPTION

[0021] Example 1

[0022] like Figure 1-Figure 5 As shown, the utility model proposes a soft-sealed gate valve which is easy to replace the gate valve, comprising a valve body 1, a flange 2, a valve cover 3, a valve stem 4, a handwheel 5, a valve plate 6, a closing assembly and a cleaning assembly. The two ends of the valve body 1 are connected to the flange 2, the valve body 1 is detachably connected to the valve cover 3 by bolts, the valve cover 3 is connected to the valve stem 4, the two ends of the valve stem 4 are respectively connected to the handwheel 5 and the valve plate 6, and the closing assembly is connected to the valve body 1; when the closing assembly is in use, the two rotating ends of the closing assembly change from a horizontal state to a vertical state, and the rotating ends close the valve body 1 to form an isolation space; the cleaning assembly is connected to the valve body 1; when the cleaning assembly is in use, the cleaning end of the cleaning assembly changes from a static state in contact with the inner wall of the valve body 1 to a moving state, and the cleaning ends move toward each other and close to the valve plate 6.

[0023] Example 2

[0024] like Figure 2-Figure 3 As shown, the present invention proposes a soft-sealed gate valve that is easy to replace. Compared with the first embodiment, the present embodiment records the detailed structure of the closing assembly. The closing assembly includes two check valves 7 and cleaning members 8. The check valves 7 are provided in parallel. The check valves 7 are connected to the valve body 1. The valve core of the check valve 7 is located inside the valve body 1. The control handle of the check valve 7 is provided outside the valve body 1. The number of cleaning members 8 corresponds to the number of the check valves 7. The cleaning members 8 are connected to the valve body 1.

[0025] In an optional embodiment, the cleaning member 8 is composed of a symmetrically arranged arc plate 9 and a cleaning brush 10. The symmetrically arranged arc plate 9 is connected to the inner wall of the valve body 1, and the cleaning brush 10 is connected to the side of the arc plate 9 close to the stop valve 7; the cleaning brush 10 is used to clean the valve core of the stop valve 7 to prevent debris from sticking to it and affecting the sealing effect when it is closed.

[0026] Example 3

[0027] like Figure 2-Figure 5 As shown, the present invention proposes a soft-sealed gate valve that is easy to replace. Compared with the second embodiment, this embodiment records the detailed structure of the cleaning assembly. The cleaning assembly includes a mounting frame 11, a movable plate 12, a first elastic member 13, a cleaning scraper 14 and an auxiliary assembly. The mounting frame 11 is detachably connected to the valve body 1;

[0028] In an optional embodiment, a plurality of dovetail blocks 19 are connected to the mounting frame 11, and the dovetail blocks 19 are slidably connected to the dovetail grooves 20 provided on the valve body 1;

[0029] Two movable plates 12 are provided in parallel, and the movable plates 12 are slidably connected to the receiving grooves provided on the mounting frame 11. The number of the first elastic members 13 corresponds to the number of the movable plates 12, and the two ends of the first elastic member 13 are respectively connected to the receiving grooves and the movable plates 12; the first elastic members 13 are selected from but not limited to spring sheets; the number of the cleaning scrapers 14 corresponds to the number of the movable plates 12, and the cleaning scrapers 14 are connected to the end of the movable plate 12 away from the elastic member; the cleaning scrapers 14 are the cleaning ends, and two auxiliary components are symmetrically provided, and the auxiliary components are connected to the fixed frame. In the auxiliary component state, the cleaning end of the auxiliary component moves more;

[0030] The auxiliary assembly includes a rotating rod 15, a second elastic member 16, a mounting plate 17, and an auxiliary scraper 18. The rotating rod 15 is rotatably connected to a groove provided on the mounting frame 11 via a pin. The groove is L-shaped, and the two grooves are flip-symmetrical. The two ends of the second elastic member 16 are respectively connected to the groove and the rotating rod 15. The second elastic member 16 can be selected from, but not limited to, a spring sheet. The mounting plate 17 is connected to one end of the rotating rod 15, and the mounting plate 17 and the rotating rod 15 are arranged in an L shape. The auxiliary scraper 18 is connected to the mounting plate 17, and the auxiliary scraper 18 is an auxiliary end.

[0031] In an optional embodiment, an acceleration ring 21 is connected to the inner wall of the valve body 1, and the acceleration ring 21 is located upstream of the valve body 1; when the acceleration ring 21 is connected to the inner wall of the valve body 1, the inner diameter of the valve body 1 is reduced, and the flow rate of the fluid will increase when flowing through this point.

[0032] In summary, when the present invention is used, the valve body 1 can be connected to the external pipeline through the flanges 2 at both ends thereof, and the valve stem 4 will be driven to rotate when the handwheel 5 is rotated, and the valve plate 6 will be driven to move along the central axis of the valve stem 4 through the threaded rod on the valve stem 4, so that the valve plate 6 moves linearly in the valve body 1 to open or seal the pipeline in the valve body 1, and the fluid will contact the acceleration ring 21 when it flows. When the acceleration ring 21 is connected to the inner wall of the valve body 1, the inner diameter of the valve body 1 is reduced. When the fluid flows through this point, its flow rate will increase to prevent the deposition of debris. When the valve plate 6 moves down to close the valve body 1, the valve plate 6 will contact the cleaning scraper 14 during the downward movement. The cleaning scraper 14 will be squeezed by the valve plate 6 and move into the accommodating groove. The elastic force of the first elastic member 13 will push the moving plate 12 and the cleaning scraper 14 to move so that they are tightly attached to the surface of the valve plate 6. Clean the impurities attached to its surface. At this time, the rotating rod 15 is squeezed by the valve plate 6 and received in the groove. When the valve plate 6 moves up and approaches the valve cover 3, as the valve plate 6 gradually rises, the arc shape of the bottom of the valve plate 6 fits the pipe in the valve body 1, which reduces the pressure on the rotating rod 15. The second elastic member 16 pushes the rotating rod 15 to rotate through the elastic force. The mounting plate 17 and the auxiliary scraper 18 at one end of the rotating rod 15 are close to the sealing surface, i.e., the lower end surface, of the valve plate 6. The auxiliary scraper 18 slides along the valve plate 6 to remove the impurities attached to its sealing surface, preventing the impurities from adhering to the sealing surface and causing the sealing surface position to wear faster. When the valve plate 6 needs to be replaced, the staff rotates the two check valves 7 to close the valve body 1 through the two check valves 7. At this time, the valve cover 3 is opened to replace and maintain the valve plate 6.

[0033] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A soft-sealed gate valve that is easy to replace, characterized in that: include A valve body (1) is connected to flanges (2) at both ends thereof, a valve cover (3) is detachably connected to the valve body (1), a valve stem (4) is connected to the valve cover (3), and a hand wheel (5) and a valve plate (6) are respectively connected to both ends of the valve stem (4); A closing component is connected to the valve body (1); when the closing component is in use, the two rotating ends of the closing component change from a horizontal state to a vertical state, and the rotating ends close the valve body (1) to form an isolation space; A cleaning component is connected to the valve body (1); when the cleaning component is in use, the cleaning end of the cleaning component changes from a stationary state in contact with the inner wall of the valve body (1) to a moving state, and the cleaning end moves toward each other and closely contacts the valve plate (6).

2. A soft-sealed gate valve that is easy to replace according to claim 1, characterized in that: Enclosure components include Two stop valves (7) are provided in parallel, the stop valves (7) are connected to the valve body (1), the valve core of the stop valve (7) is located inside the valve body (1), and the control handle of the stop valve (7) is provided outside the valve body (1); The number of cleaning members (8) corresponds to that of the check valves (7), and the cleaning members (8) are connected to the valve body (1).

3. A soft-sealed gate valve for easy gate valve replacement according to claim 2, characterized in that: The cleaning member (8) is composed of a symmetrically arranged arc plate (9) and a cleaning brush (10). The symmetrically arranged arc plate (9) is connected to the inner wall of the valve body (1), and the cleaning brush (10) is connected to the side of the arc plate (9) close to the stop valve (7).

4. The soft-sealed gate valve for easy gate valve replacement according to claim 1, characterized in that: Cleaning kit includes a mounting frame (11) detachably connected to the valve body (1); Two movable plates (12) are provided in parallel, and the movable plates (12) are slidably connected to the receiving grooves provided on the installation frame (11); First elastic members (13), the number of which corresponds to the number of the movable plates (12), and the two ends of the first elastic members (13) are respectively connected to the accommodating groove and the movable plate (12); Cleaning scrapers (14), the number of which corresponds to the number of the movable plates (12), and the cleaning scrapers (14) are connected to an end of the movable plate (12) away from the elastic member; There are two auxiliary components symmetrically arranged, and the auxiliary components are connected to the fixed frame. In the auxiliary component state, the cleaning end of the auxiliary component moves more.

5. A soft-sealed gate valve for easy gate valve replacement according to claim 4, characterized in that: Auxiliary components include A rotating rod (15) is rotatably connected to a groove formed on the mounting frame (11); A second elastic member (16), two ends of which are respectively connected to the groove and the rotating rod (15); A mounting plate (17) is connected to one end of the rotating rod (15), and the mounting plate (17) and the rotating rod (15) are arranged in an L shape; An auxiliary scraper (18) is connected to the mounting plate (17).

6. The soft-sealed gate valve for easy gate valve replacement according to claim 4, characterized in that: A plurality of dovetail blocks (19) are connected to the mounting frame (11), and the dovetail blocks (19) are slidably connected to dovetail grooves (20) provided on the valve body (1).

7. The soft-sealed gate valve for easy gate valve replacement according to claim 1, characterized in that: An acceleration ring (21) is connected to the inner wall of the valve body (1), and the acceleration ring (21) is located upstream of the valve body (1).

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