Corrosion-resistant top-mounted ball valve convenient to mount

Abstract

The invention relates to the technical field of top-mounted ball valves, in particular to a corrosion-resistant top-mounted ball valve convenient to mount, which is characterized in that a valve rod is connected with a closing part main body, a lower mounting disc is arranged on the corrosion-resistant ball valve main body, and a limiting groove is formed in the bottom surface of the lower mounting disc; a first mounting groove is formed in the upper mounting disc; friction pads are installed on the side faces of the installation blocks, circular grooves are formed in the bottom faces of the installation blocks, and upper sealing rings are arranged in the circular grooves. The top-mounted ball valve has the beneficial effects that operation is easy, tool assistance is not needed, rapid assembly can be achieved, personnel use is facilitated, the top-mounted ball valve can be disassembled for overhauling without the help of professional tools, the sealing performance of the connecting position can be improved through the arranged mounting block and the arranged lower sealing frame, and the service life of the top-mounted ball valve is prolonged. Impurities such as water or dust are prevented from entering the square groove through the seam to be attached to the screw to affect the screw, and the device is high in reliability.

Description

Technical Field

[0001] The invention relates to the field of top-entry ball valves, in particular to a corrosion-resistant top-entry ball valve which is easy to install. Background Art

[0002] The corrosion-resistant top-entry ball valve is a valve type specifically designed for harsh working conditions. It combines the common features of a ball valve with excellent corrosion resistance. The valve opens and closes by rotating the opening and closing member (ball) around the valve axis via the valve stem.

[0003] In the prior art, important components such as closures on top-entry ball valves can be removed from the ball valve. This design greatly simplifies the maintenance process of the ball valve.

[0004] However, the existing top-entry ball valve uses multiple bolts and nuts to fix the mounting base including the closure and other components on the ball valve. When personnel perform maintenance on the closure and other components, they need to remove multiple bolts and nuts, which is time-consuming and labor-intensive. If tools are not brought with them, it will be inconvenient to disassemble the top-entry ball valve, making it inconvenient for personnel to maintain the device. Summary of the Invention

[0005] The object of the present invention is to provide a corrosion-resistant top-entry ball valve that is easy to install, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a corrosion-resistant top-entry ball valve that is easy to install, comprising: a valve stem, the valve stem being connected to a closure body, the closure body being disposed within the corrosion-resistant ball valve body, the corrosion-resistant ball valve body being provided with a lower mounting plate, a limit groove being provided on the bottom surface of the lower mounting plate, a slide groove being provided on the lower mounting plate, a square groove being provided in the lower mounting plate, a limit plate being provided in the square groove, a limit plate being fixedly connected to the limit plate, the limit plate being connected to a lower clamping block, the limit plate being connected to a screw, and the screw being connected to a rotating mechanism; An upper mounting plate, wherein a first mounting groove is formed on the upper mounting plate, a connecting block is provided on the bottom surface of the upper mounting plate, the connecting block is connected to a card plate, and a card slot is formed on the card plate; The mounting block has a friction pad mounted on the side thereof, a circular groove is provided on the bottom surface of the mounting block, and an upper sealing ring is arranged in the circular groove.

[0007] Preferably, the bottom surface of the upper mounting plate is fixedly connected to a connecting block, which is a fan-shaped ring-shaped plate structure; the bottom surface of the connecting block is fixedly connected to a clamping plate, which is a fan-shaped ring-shaped plate structure; the clamping plate can slide along the slide groove, which is a fan-shaped ring-shaped groove structure.

[0008] Preferably, the closure body is fixedly connected to the valve stem, the valve stem is rotatably connected to the upper mounting plate, and a sealing gasket is fixedly connected to the bottom surface of the upper mounting plate, and the sealing gasket is an annular plate structure.

[0009] Preferably, the connecting block can slide along a sliding groove provided on the lower mounting plate, the lower mounting plate is fixedly connected to the corrosion-resistant ball valve body, and a square groove is provided on the lower surface of the lower mounting plate, and the square groove has a square groove structure.

[0010] Preferably, the rotating mechanism is rotatably connected to the lower mounting plate, the other end of the rotating mechanism is fixedly connected to the screw, the screw is threadedly connected to the threaded hole opened on the limit plate, the other end of the screw is fixedly connected to the limit block, and the limit block is a circular plate structure.

[0011] Preferably, the limit plate is a square plate structure, the limit plate is stuck in the square groove, the limit plate can slide up and down along the square groove, the limit plate is fixedly connected to the lower clamping block, the lower clamping block is a square plate structure, one end of the lower clamping block is stuck in the clamping slot, and the clamping slot is a square groove structure.

[0012] Preferably, the mounting block is a fan-shaped plate structure, and the mounting block can slide into the first mounting groove opened on the upper mounting plate. A circular groove is opened on the bottom surface of the mounting block, and an upper sealing ring is arranged in the circular groove. The upper sealing ring is a circular columnar structure, and the upper sealing ring is fixedly connected to the mounting block.

[0013] Preferably, the bottom surface of the mounting block is fixedly connected to a limiting rod, which has a cylindrical structure. One end of the limiting rod is clamped in a limiting hole opened on the lower mounting plate. The limiting rod can slide along the limiting hole, which has a circular hole structure.

[0014] Preferably, a second mounting groove is opened on the side of the mounting block, and the second mounting groove is an "I"-shaped groove structure. A friction pad is clamped in the second mounting groove, and the friction pad is an "I"-shaped plate structure. The friction pad is installed on the mounting block by fixing screws.

[0015] Preferably, one end of the lower clamping block is fixedly connected to a lower sealing frame, which has a square frame structure. The lower sealing frame is clamped in a limiting groove opened on the lower mounting plate, and the lower sealing frame can slide up and down along the limiting groove, which has a square groove structure.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The corrosion-resistant top-loading ball valve proposed by the present invention is easy to install, and the screw is rotated along the threaded hole opened in the limit plate, so that the limit plate moves upward along the square groove so that the lower end of the lower clamping block is disengaged from the clamping groove and moves into the limit groove. The personnel can then rotate the upper mounting plate so that the clamping plate no longer contacts the lower surface of the connecting block, and pull the upper mounting plate to make the clamping plate and the connecting block slide out along the slide groove, so that the valve stem and the closure body can be removed from the corrosion-resistant ball valve body for maintenance. The operation is simple, does not require the assistance of tools, can be quickly assembled, and is convenient for personnel to use. There is no need to use professional tools to disassemble the top-loading ball valve for maintenance, and the provided mounting block and lower sealing frame can improve the sealing of the connection, preventing dust, water or other impurities from entering the square groove through the joint and adhering to the screw to affect the screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of the device of the present invention; Figure 2 It is a schematic diagram of the structure of the device of the present invention; Figure 3 It is a schematic cross-sectional view of a local structure of the device of the present invention; Figure 4 for Figure 3 A in the middle is an enlarged structural diagram; Figure 5 This is a schematic diagram of the disassembled structure of the device of the present invention; Figure 6 for Figure 5 The enlarged structural diagram at B in the middle; Figure 7 It is a partial structural schematic diagram of the device of the present invention.

[0018] In the figure: 1. Corrosion-resistant ball valve body; 2. Lower mounting plate; 3. Upper mounting plate; 4. Valve stem; 5. Connecting block; 6. Clamping plate; 7. Clamping groove; 8. Limiting plate; 9. Screw; 10. Square groove; 11. Limiting block; 12. Rotating mechanism; 13. Sealing gasket; 14. Slide; 15. Closing body; 16. First mounting groove; 17. Limiting hole; 18. Limiting groove; 19. Lower sealing frame; 20. Lower clamping block; 21. Mounting block; 22. Round groove; 23. Upper sealing ring; 24. Limiting rod; 25. Second mounting groove; 26. Friction pad; 27. Fixing screw. DETAILED DESCRIPTION

[0019] In order to clearly and completely describe the objectives and technical solutions of the present invention and make the advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example 1 See also Figure 1-Figure 7 The present invention provides a technical solution: a corrosion-resistant top-loading ball valve that is easy to install, comprising: a valve stem 4, the valve stem 4 is connected to a closure body 15, the closure body 15 is arranged in a corrosion-resistant ball valve body 1, the corrosion-resistant ball valve body 1 is provided with a lower mounting plate 2, the bottom surface of the lower mounting plate 2 is provided with a limiting groove 18, the lower mounting plate 2 is provided with a slide groove 14, the lower mounting plate 2 is provided with a square groove 10, the square groove 10 is provided with a limiting plate 8, the limiting plate 8 is fixedly connected with The lower sealing frame 19, the limit plate 8 is connected to the lower clamping block 20, the limit plate 8 is connected to the screw 9, and the screw 9 is connected to the rotating mechanism 12; the upper mounting plate 3, the upper mounting plate 3 is provided with a first mounting groove 16, the bottom surface of the upper mounting plate 3 is provided with a connecting block 5, the connecting block 5 is connected to the clamping plate 6, and the clamping plate 6 is provided with a clamping groove 7; the mounting block 21, the side of the mounting block 21 is installed with a friction pad 26, the bottom surface of the mounting block 21 is provided with a circular groove 22, and the circular groove 22 is provided with an upper sealing ring 23; When in use, the personnel slide the connecting block 5 fixed on the upper mounting plate 3 and the card plate 6 fixedly connected to the connecting block 5 along the slide groove 14 until the upper mounting plate 3 contacts the upper surface of the lower mounting plate 2, and rotate the upper mounting plate 3 to make the connecting block 5 slide along the slide groove 14 until the upper mounting plate 3 cannot be rotated, so that the card plate 6 contacts the lower surface of the lower mounting plate 2. The personnel rotate the rotating mechanism 12 to make the screw 9 rotate along the threaded hole opened on the limit plate 8 so that the limit plate 8 moves downward along the square groove 10, so that the lower card block 20 is stuck in the card groove 7 opened on the card plate 6, thereby limiting the rotation of the upper mounting plate 3, and cooperating with the card plate 6 to clamp the upper mounting plate 3 on the lower mounting plate 2, so that the upper mounting plate 3 is fixed on the lower mounting plate 2. The structure is simple and convenient for personnel to install.

[0021] Example 2 On the basis of Example 1, in order to facilitate personnel to disassemble the device, a rotating mechanism 12 is provided. The rotating mechanism 12 is rotatably connected to the lower mounting plate 2. The other end of the rotating mechanism 12 is fixedly connected to the screw 9. The screw 9 is threadedly connected to the threaded hole opened on the limit plate 8. The other end of the screw 9 is fixedly connected to the limit block 11. The limit block 11 is a circular plate-shaped structure. Personnel can rotate the screw 9 by rotating the rotating mechanism 12. The diameter of the limit block 11 is larger than the diameter of the screw 9. The position of the limit plate 8 is limited by the limit block 11 to prevent it from falling off. The connecting block 5 can slide along the sliding groove 14 provided on the lower mounting plate 2. The lower mounting plate 2 is fixedly connected to the corrosion-resistant ball valve body 1. A square groove 10 is provided on the lower surface of the lower mounting plate 2. The square groove 10 is a square groove-shaped structure. The screw 9 rotates along the threaded hole provided on the limit plate 8, so that the limit plate 8 moves upward along the square groove 10. One end of the lower clamping block 20 is fixedly connected to a lower sealing frame 19, which has a square frame-shaped structure. The lower sealing frame 19 is stuck in the limiting groove 18 opened on the lower mounting plate 2. The lower sealing frame 19 can slide up and down along the limiting groove 18. The limiting groove 18 has a square groove-shaped structure. When the upper mounting plate 3 is in a locked state, the lower sealing frame 19 is stuck in the limiting groove 18. The lower sealing frame 19 is in close contact with the surface of the lower mounting plate 2 at the limiting groove 18, which can improve the sealing performance of the place and effectively prevent impurities such as water or dust from entering the square groove 10 through the limiting groove 18 to affect the screw 9 and improve the reliability of the device. The lower sealing frame 19 moves upward along the limiting groove 18; The limiting plate 8 is a square plate-shaped structure. The limiting plate 8 is stuck in the square groove 10. The limiting plate 8 can slide up and down along the square groove 10. The limiting plate 8 is fixedly connected to the lower clamping block 20. The lower clamping block 20 is a square plate-shaped structure. One end of the lower clamping block 20 is stuck in the clamping groove 7. The clamping groove 7 is a square groove-shaped structure. The lower end of the lower clamping block 20 fixedly connected to the limiting plate 8 is separated from the clamping groove 7 opened on the clamping plate 6 and moved into the square groove 10. The personnel can then rotate the upper mounting plate 3 so that the clamping plate 6 is no longer in contact with the lower surface of the connecting block 5, thereby releasing the lock; The bottom surface of the upper mounting plate 3 is fixedly connected to a connecting block 5, which has a fan-shaped annular plate structure. The bottom surface of the connecting block 5 is fixedly connected to a clamping plate 6, which has a fan-shaped annular plate structure. The clamping plate 6 can slide along the slide groove 14, and the slide groove 14 has a fan-shaped annular groove structure. The upper mounting plate 3 can be pulled to make the clamping plate 6 and the connecting block 5 slide out along the slide groove 14, so that the valve stem 4 and the closure body 15 can be removed from the corrosion-resistant ball valve body 1 for maintenance. The structure is simple, easy to disassemble, and easy to use.

[0022] Example 3 On the basis of the second embodiment, in order to improve the use effect of the device, a closing body 15 is provided, the closing body 15 is fixedly connected to the valve stem 4, the valve stem 4 is rotatably connected to the upper mounting plate 3, and a sealing gasket 13 is fixedly connected to the bottom surface of the upper mounting plate 3. The sealing gasket 13 is an annular plate structure. By rotating the valve stem 4, the rotation of the closing body 15 can be controlled to control the flow of the medium in the corrosion-resistant ball valve body 1. When the upper mounting plate 3 is installed on the lower mounting plate 2, the sealing gasket 13 fixedly connected to the bottom surface of the upper mounting plate 3 contacts the upper surface of the lower mounting plate 2, which can improve the sealing performance of the connection; A second mounting groove 25 is formed on the side of the mounting block 21. The second mounting groove 25 is in an I-shaped groove structure. A friction pad 26 is clamped in the second mounting groove 25. The friction pad 26 is in an I-shaped plate structure. The friction pad 26 is mounted on the mounting block 21 by a fixing screw 27. When a person turns and removes the fixing screw 27, the lock of the friction pad 26 is released. The person can then slide the friction pad 26 out of the second mounting groove 25, and the friction pad 26 can be removed and replaced, which is convenient for use. The bottom surface of the mounting block 21 is fixedly connected to a limiting rod 24, which has a cylindrical structure. One end of the limiting rod 24 is clamped in the limiting hole 17 opened on the lower mounting plate 2, and the limiting rod 24 can slide along the limiting hole 17. The limiting hole 17 has a circular hole-shaped structure. By setting the limiting hole 17 as a positioning hole, the limiting rod 24 is clamped in the limiting hole 17. On the one hand, by setting the limiting hole 17 as a positioning hole, on the other hand, the limiting rod 24 is clamped in the limiting hole 17, and the mounting block 21 is clamped in the first mounting groove 16 opened on the upper mounting plate 3, and the lower end of the lower clamping block 20 is clamped in the clamping groove 7 to jointly limit the upper mounting plate 3, limit its rotation, and improve the stability when locked; The mounting block 21 is in the form of a fan-shaped ring plate. The mounting block 21 can slide into the first mounting groove 16 provided on the upper mounting plate 3. A circular groove 22 is provided on the bottom surface of the mounting block 21. An upper sealing ring 23 is provided in the circular groove 22. The upper sealing ring 23 is in the form of a circular columnar structure. The upper sealing ring 23 is fixedly connected to the mounting block 21. When the mounting block 21 can slide into the first mounting groove 16 provided on the upper mounting plate 3, the side of the friction pad 26 contacts the upper mounting plate 3, making it difficult for the mounting block 21 to fall off. It requires personnel to apply external force to slide out. The first mounting groove 16 is in the form of a fan-shaped ring groove. When the mounting block 21 is fully inserted into the first mounting groove 16, the upper end of the rotating mechanism 12 is just inserted into the circular groove 22 provided on the bottom surface of the mounting block 21, as shown in the example. Figure 4 As shown, an upper sealing ring 23 is provided in the circular groove 22. The lower end of the upper sealing ring 23 is in contact with the upper surface of the lower mounting plate 2 at this time, thereby improving the sealing performance and protecting the rotating mechanism 12. The mounting block 21 is used to protect the rotating mechanism 12, preventing dust and other impurities from entering the square groove 10 through the joint between the rotating mechanism 12 and the lower mounting plate 2, thereby affecting the screw 9 and improving the reliability of the device.

[0023] During actual use, the screw 9 is rotated along the threaded hole opened on the limit plate 8, so that the limit plate 8 moves upward along the square groove 10 so that the groove 7 disengaged from the lower end of the lower clamping block 20 moves into the limit groove 18. The personnel can then rotate the upper mounting plate 3 so that the clamping plate 6 is no longer in contact with the lower surface of the connecting block 5, and pull the upper mounting plate 3 to make the clamping plate 6 and the connecting block 5 slide out along the slide groove 14, so that the valve stem 4 and the closure body 15 can be removed from the corrosion-resistant ball valve body 1 for maintenance. The operation is simple, does not require the assistance of tools, can be quickly assembled, and is convenient for personnel to use. There is no need to use professional tools to disassemble the top-mounted ball valve for maintenance, and the mounting block 21 and the lower sealing frame 19 provided can improve the sealing of the connection, preventing dust and other impurities from entering the square groove 10 through the joint and adhering to the screw 9 to affect the screw 9.

[0024] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant top-entry ball valve that is easy to install, comprising: The valve stem (4) is connected to the closing member body (15), and the closing member body (15) is arranged in the corrosion-resistant ball valve body (1), characterized in that: the corrosion-resistant ball valve body (1) is provided with a lower mounting plate (2), the bottom surface of the lower mounting plate (2) is provided with a limiting groove (18), the lower mounting plate (2) is provided with a slide groove (14), the lower mounting plate (2) is provided with a square groove (10), the square groove (10) is provided with a limiting plate (8), the limiting plate (8) is fixedly connected to the lower sealing frame (19), the limiting plate (8) is connected to the lower clamping block (20), the limiting plate (8) is connected to the screw (9), and the screw (9) is connected to the rotating mechanism (12); An upper mounting plate (3), the upper mounting plate (3) is provided with a first mounting groove (16), a connecting block (5) is provided on the bottom surface of the upper mounting plate (3), the connecting block (5) is connected to a card plate (6), and a card groove (7) is provided on the card plate (6); A mounting block (21) is provided, wherein a friction pad (26) is provided on the side of the mounting block (21), a circular groove (22) is provided on the bottom surface of the mounting block (21), and an upper sealing ring (23) is provided in the circular groove (22).

2. The corrosion-resistant top-entry ball valve that is easy to install according to claim 1, characterized in that: The bottom surface of the upper mounting plate (3) is fixedly connected to a connecting block (5), which is in the form of a fan-shaped ring plate. The bottom surface of the connecting block (5) is fixedly connected to a clamping plate (6), which is in the form of a fan-shaped ring plate. The clamping plate (6) can slide along a slide groove (14), which is in the form of a fan-shaped ring groove.

3. The corrosion-resistant top-entry ball valve that is easy to install according to claim 1, characterized in that: The closure body (15) is fixedly connected to the valve stem (4), the valve stem (4) is rotatably connected to the upper mounting plate (3), and a sealing gasket (13) is fixedly connected to the bottom surface of the upper mounting plate (3), and the sealing gasket (13) is an annular plate structure.

4. The corrosion-resistant top-entry ball valve that is easy to install according to claim 1, characterized in that: The connecting block (5) can slide along a sliding groove (14) provided on the lower mounting plate (2). The lower mounting plate (2) is fixedly connected to the corrosion-resistant ball valve body (1). A square groove (10) is provided on the lower surface of the lower mounting plate (2). The square groove (10) is a square groove-shaped structure.

5. The corrosion-resistant top-entry ball valve that is easy to install according to claim 1, characterized in that: The rotating mechanism (12) is rotatably connected to the lower mounting plate (2), the other end of the rotating mechanism (12) is fixedly connected to the screw rod (9), the screw rod (9) is threadedly connected to the threaded hole provided on the limiting plate (8), the other end of the screw rod (9) is fixedly connected to the limiting block (11), and the limiting block (11) is a circular plate-shaped structure.

6. The corrosion-resistant top-entry ball valve that is easy to install according to claim 1, characterized in that: The limiting plate (8) is a square plate-shaped structure. The limiting plate (8) is clamped in the square groove (10). The limiting plate (8) can slide up and down along the square groove (10). The limiting plate (8) is fixedly connected to the lower clamping block (20). The lower clamping block (20) is a square plate-shaped structure. One end of the lower clamping block (20) is clamped in the clamping groove (7). The clamping groove (7) is a square groove-shaped structure.

7. The corrosion-resistant top-entry ball valve that is easy to install according to claim 1, characterized in that: The mounting block (21) is in the form of a fan-shaped plate. The mounting block (21) can slide into a first mounting groove (16) provided on the upper mounting plate (3). A circular groove (22) is provided on the bottom surface of the mounting block (21). An upper sealing ring (23) is provided in the circular groove (22). The upper sealing ring (23) is in the form of a circular columnar structure. The upper sealing ring (23) is fixedly connected to the mounting block (21).

8. The corrosion-resistant top-entry ball valve that is easy to install according to claim 1, characterized in that: The bottom surface of the mounting block (21) is fixedly connected to a limiting rod (24), which has a cylindrical structure. One end of the limiting rod (24) is clamped in a limiting hole (17) provided on the lower mounting plate (2). The limiting rod (24) can slide along the limiting hole (17), which has a circular hole structure.

9. The corrosion-resistant top-entry ball valve that is easy to install according to claim 1, characterized in that: A second mounting groove (25) is provided on the side of the mounting block (21). The second mounting groove (25) is in the shape of an "I"-shaped groove. A friction pad (26) is clamped in the second mounting groove (25). The friction pad (26) is in the shape of an "I"-shaped plate. The friction pad (26) is mounted on the mounting block (21) by a fixing screw (27).

10. The corrosion-resistant top-entry ball valve that is easy to install according to claim 1, characterized in that: One end of the lower clamping block (20) is fixedly connected to a lower sealing frame (19), which has a square frame structure. The lower sealing frame (19) is clamped in a limiting groove (18) provided on the lower mounting plate (2). The lower sealing frame (19) can slide up and down along the limiting groove (18), which has a square groove structure.

Images