Electric rising stem wedge-shaped double-gate-plate gate valve

Abstract

The utility model relates to the technical field of gate valves, and particularly discloses an electric rising stem wedge-shaped double-gate-disc gate valve which comprises two groups of fixing plates and a valve cover, the tops of the two groups of fixing plates are fixedly connected with an electric hydraulic rod, a power output piston rod of the electric hydraulic rod is fixedly connected with a limiting block, and two groups of positioning blocks are arranged on the limiting block. Fixing pipes are fixedly connected to the two sides of the two sets of fixing plates correspondingly, guide grooves communicating with the fixing pipes are formed in the sides, close to each other, of the two sets of fixing plates correspondingly, adjusting assemblies used for adjusting the positioning blocks are arranged in the fixing pipes, and rotating pipes are connected to the fixing pipes in a threaded mode; through the arrangement of the positioning block, the rotating pipe and the moving assembly, the moving assembly can move the positioning block and release limitation on the limiting block, the electric hydraulic rod can conveniently drive the double gate plates to slide upwards, the valve body is opened, and water flow can conveniently flow.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to an electric rising-stem wedge-shaped double-disc gate valve. Background Art

[0002] The electric rising stem wedge gate valve can drive the valve stem up and down through the electric device, thereby driving the gate to open and close. Since the movement direction of the gate is perpendicular to the direction of the fluid, the wedge gate valve can only be fully opened and fully closed, and is not suitable for regulation and throttling. This type of gate valve generally has the characteristics of simple structure and good sealing. It is suitable for a variety of industrial fields, such as chemical, electric power, mining, steel and other industries, and is used to control and cut off various media such as water, gas, oil, etc.

[0003] A gate valve disclosed in the existing patent announcement number CN209494955U includes a gate valve bonnet and a gate valve body. When in use, a thrust bearing is arranged at the connection between the valve stem and the pressure bonnet. The thrust bearing can reduce the friction with the valve stem and reduce the resistance. An elastic gasket is arranged between the gate valve bonnet and the gate valve body, so that the gate valve bonnet and the gate valve body are tightly connected. When the gate valve is closed, the semicircular protrusion is embedded in the embedding groove. A sealing gasket is fixed on the side wall of the embedding groove. The sealing gasket makes the connection between the semicircular protrusion and the embedding groove tighter. The plug on the gate valve body can be inserted into the groove on the gate valve plate, so that the connection between the gate valve plate and the gate valve body is tighter.

[0004] The above device uses an insert to connect the gate valve plate and the gate valve body. However, when the gate valve body needs to flow water, the insert is inconvenient to retract, which affects the water flow. To address the above problems, an electric rising stem wedge-shaped double-disc gate valve is proposed. Utility Model Content

[0005] The utility model aims to provide an electric rising-stem wedge-shaped double-disc gate valve to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An electric rising-stem wedge-shaped double-disc gate valve comprises two sets of fixed plates and a valve cover, the tops of the two sets of fixed plates are fixedly connected with electric hydraulic rods, the power output piston rods of the electric hydraulic rods are fixedly connected with limit blocks, the limit blocks are provided with two sets of positioning blocks, both sides of the two sets of fixed plates are fixedly connected with fixed pipes, the sides of the two sets of fixed plates close to each other are provided with guide grooves connected with the fixed pipes, the fixed pipes are provided with adjustment components for adjusting the positioning blocks, the fixed pipes are threadedly connected with rotating pipes, and one side of the rotating pipes is provided with a moving component for moving the positioning blocks;

[0008] A pressure plate is fixedly connected to the bottom of the fixed plate, and the bottom of the pressure plate is fixedly connected to the valve cover by bolts. The bottom of the valve cover is connected to the top of the valve body. A double gate plate is slidably connected in the valve body, and an electric hydraulic rod is fixedly connected to the top of the double gate plate.

[0009] In an optional solution: the adjustment assembly includes a spring and a guide rod, the guide rod is slidably connected in a fixed tube, one end of the guide rod close to the limit block is fixedly connected to a positioning block, the bottom of the positioning block overlaps the top of the limit block, a spring is sleeved on the guide rod, one end of the spring is fixedly connected to the guide rod, and the other end of the spring is fixedly connected to the inner wall of the fixed tube.

[0010] In an optional scheme: the moving component includes a fixed block and a positioning ring, the end of the guide rod away from the limit block is rotatably connected to the fixed block, two groups of arc blocks are arranged in the rotating tube, the outer surfaces of the two groups of arc blocks are threadedly connected to the same positioning ring, and the rotating tube is provided with a positioning component for positioning the movement of the arc blocks.

[0011] In an optional solution: the positioning assembly includes a sliding rod and a sliding hole, one side of the arc block is fixedly connected to the sliding rod, and the rotating tube is provided with a sliding hole for cooperating with the sliding rod to move.

[0012] In an optional solution: an anti-slip sleeve is provided on the outer surface of the fixing block.

[0013] In an optional solution: a sliding block is fixedly connected to the guide rod, and the sliding block is slidably connected in the fixed tube.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model provides a positioning block, a rotating tube and a moving assembly, and the moving assembly can move the positioning block to release the restriction on the limit block, so that the electric hydraulic rod can drive the double gate plates to slide upward, open the valve body, and facilitate the flow of water.

[0016] The utility model provides an adjusting component, which can facilitate the positioning block to limit the limit block during the downward movement of the limit block, so that the double gates can be closed more tightly.

[0017] The utility model can facilitate the two groups of arc blocks to move the guide rod by arranging the fixing block, so that the positioning block is freed from the restriction on the limiting block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the location of the positioning block in the utility model.

[0020] Figure 3 It is a schematic diagram of the local structure of the utility model.

[0021] In the figure: 1. valve body; 2. valve cover; 3. fixed plate; 4. pressure plate; 5. limit block; 6. electric hydraulic rod; 7. rotating tube; 8. fixed tube; 9. guide groove; 10. positioning block; 11. slider; 12. fixed block; 13. guide rod; 14. spring; 15. positioning ring; 16. slide rod; 17. arc block; 18. sliding hole. DETAILED DESCRIPTION

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] 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.

[0024] See also Figure 1-Figure 3 In this embodiment, the electric rising-stem wedge-shaped double-disc gate valve comprises two groups of fixed plates 3 and a valve cover 2. The tops of the two groups of fixed plates 3 are fixedly connected with electric hydraulic rods 6. The power output piston rod of the electric hydraulic rod 6 is fixedly connected with a limiting block 5. The limiting block 5 is provided with two groups of positioning blocks 10. Both sides of the two groups of fixed plates 3 are fixedly connected with fixed pipes 8. The two sides of the two groups of fixed plates 3 are provided with guide grooves 9 connected with the fixed pipes 8. The fixed pipes 8 are provided with an adjusting component for adjusting the positioning block 10. The fixed pipes 8 are threadedly connected with a rotating pipe 7. One side of the rotating pipe 7 is provided with a moving component for moving the positioning block 10.

[0025] The bottom of the fixed plate 3 is fixedly connected to a pressure plate 4, and the bottom of the pressure plate 4 is fixedly connected to the valve cover 2 by bolts. The bottom of the valve cover 2 is connected to the top of the valve body 1, and a double gate is slidably connected in the valve body 1. The top of the double gate is fixedly connected to an electric hydraulic rod 6. When the valve body 1 needs to be closed, the electric hydraulic rod 6 starts to work, driving the electric piston rod to drive the double gate to move downward into the valve body 1 to close the valve body 1, and the power output piston rod drives the limit block 5 to move downward, and the adjustment component drives the positioning block 10 to position the limit block 5, so that the double gate is closed more tightly. When the valve body 1 needs to be opened, the moving component drives the positioning block 10 to move, so that the positioning block 10 is free from the restriction of the limit block 5, and the electric hydraulic rod 6 starts to work, driving the power output piston rod and the double gate to move upward.

[0026] The adjusting assembly includes a spring 14 and a guide rod 13. The guide rod 13 is slidably connected in the fixed tube 8. One end of the guide rod 13 close to the limit block 5 is fixedly connected to a positioning block 10. The bottom of the positioning block 10 overlaps the top of the limit block 5. A spring 14 is sleeved on the guide rod 13. One end of the spring 14 is fixedly connected to the guide rod 13, and the other end of the spring 14 is fixedly connected to the inner wall of the fixed tube 8. When the limit block 5 moves downward, the two groups of positioning blocks 10 are squeezed, and the guide rod 13 moves in the guide groove 9. The guide rod 13 and the slider 11 move in the guide groove 9 to squeeze the spring 14. The elastic force of the spring 14 is used to pop out the positioning block 10 to limit the limit block 5, so that the double gate is closed more tightly.

[0027] The moving assembly includes a fixed block 12 and a positioning ring 15. The end of the guide rod 13 away from the limit block 5 is rotatably connected to the fixed block 12. Two groups of arc blocks 17 are arranged in the rotating tube 7. The outer surfaces of the two groups of arc blocks 17 are threadedly connected to the same positioning ring 15. A positioning assembly for positioning the movement of the arc block 17 is arranged on the rotating tube 7. The two groups of arc blocks 17 are approached to each other as the positioning ring 15 rotates. The positioning assembly limits the arc block 17. The two groups of arc blocks 17 approach each other to tighten the fixed block 12. The rotating tube 7 is rotated to drive the fixed block 12 to rotate, drive the guide rod 13 and the slider 11 to slide in the fixed tube 8, and drive the positioning block 10 to move.

[0028] The positioning assembly includes a slide rod 16 and a slide hole 18. One side of the arc block 17 is fixedly connected to the slide rod 16. The rotating tube 7 is provided with a slide hole 18 for cooperating with the slide rod 16 to move. The two groups of arc blocks 17 approach each other as the positioning ring 15 rotates, driving the slide rod 16 to slide in the slide hole 18, so that the arc block 17 can be moved and positioned.

[0029] The outer surface of the fixing block 12 is provided with an anti-slip sleeve, which can facilitate the two groups of arc blocks 17 to clamp more stably and reduce shaking.

[0030] The guide rod 13 is fixedly connected with a slider 11 , and the slider 11 is slidably connected in the fixed tube 8 . By providing the slider 11 , the guide rod 13 can slide more stably.

[0031] The working principle of the utility model is as follows: when the valve body 1 needs to be closed, the electric hydraulic rod 6 starts to work, driving the electric piston rod to drive the double gate plate to move downward into the valve body 1 to close the valve body 1, and the power output piston rod drives the limit block 5 to move downward. When the limit block 5 moves downward, it squeezes the two groups of positioning blocks 10, and the guide rod 13 moves in the guide groove 9. The guide rod 13 and the slider 11 move in the guide groove 9 to squeeze the spring 14, and the elastic force of the spring 14 is used to pop out the positioning block 10 to limit the limit block 5, so that the double gate plate is closed more tightly. When the valve body 1 needs to be opened, the positioning ring 15 is first rotated. The two groups of arc blocks 17 approach each other as the positioning ring 15 rotates, driving the sliding rod 16 to slide in the sliding hole 18. The two groups of arc blocks 17 approach each other to tighten the fixed block 12, and the rotating tube 7 is rotated to drive the fixed block 12 to rotate, drive the guide rod 13 and the slider 11 to slide in the fixed tube 8, drive the positioning block 10 to move, so that the positioning block 10 is free from the restriction of the limit block 5, and the electric hydraulic rod 6 starts to work, driving the power output piston rod and the double gate to move upward.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An electric rising stem wedge-shaped double-disc gate valve, comprising two sets of fixed plates (3) and a valve cover (2), characterized in that: The tops of the two groups of fixed plates (3) are fixedly connected with electric hydraulic rods (6), the power output piston rods of the electric hydraulic rods (6) are fixedly connected with limit blocks (5), the limit blocks (5) are provided with two groups of positioning blocks (10), both sides of the two groups of fixed plates (3) are fixedly connected with fixed tubes (8), the sides of the two groups of fixed plates (3) close to each other are provided with guide grooves (9) connected with the fixed tubes (8), the fixed tubes (8) are provided with adjustment components for adjusting the positioning blocks (10), the fixed tubes (8) are threadedly connected with rotating tubes (7), and one side of the rotating tubes (7) is provided with a moving component for moving the positioning blocks (10); The bottom of the fixed plate (3) is fixedly connected to a pressure plate (4), the bottom of the pressure plate (4) is fixedly connected to the valve cover (2) via bolts, the bottom of the valve cover (2) is connected to the top of the valve body (1), a double gate plate is slidably connected inside the valve body (1), and the top of the double gate plate is fixedly connected to an electric hydraulic rod (6).

2. The electric rising stem wedge-shaped double-disc gate valve according to claim 1 is characterized in that: The adjustment assembly comprises a spring (14) and a guide rod (13), wherein the guide rod (13) is slidably connected in the fixed tube (8), and one end of the guide rod (13) close to the limit block (5) is fixedly connected to the positioning block (10), and the bottom of the positioning block (10) overlaps the top of the limit block (5). The guide rod (13) is sleeved with a spring (14), and one end of the spring (14) is fixedly connected to the guide rod (13), and the other end of the spring (14) is fixedly connected to the inner wall of the fixed tube (8).

3. The electric rising stem wedge-shaped double-disc gate valve according to claim 2 is characterized in that: The moving assembly comprises a fixed block (12) and a positioning ring (15); one end of the guide rod (13) away from the limit block (5) is rotatably connected to the fixed block (12); two groups of arc blocks (17) are arranged in the rotating tube (7); the outer surfaces of the two groups of arc blocks (17) are threadedly connected to the same positioning ring (15); and a positioning assembly for positioning the movement of the arc blocks (17) is arranged on the rotating tube (7).

4. The electric rising stem wedge-shaped double-disc gate valve according to claim 3 is characterized in that: The positioning assembly comprises a sliding rod (16) and a sliding hole (18); one side of the arc block (17) is fixedly connected to the sliding rod (16); and the rotating tube (7) is provided with a sliding hole (18) for cooperating with the sliding rod (16) to move.

5. The electric rising stem wedge-shaped double-disc gate valve according to claim 3 is characterized in that: The outer surface of the fixing block (12) is provided with an anti-slip sleeve.

6. The electric rising stem wedge-shaped double-disc gate valve according to claim 2 is characterized in that: A sliding block (11) is fixedly connected to the guide rod (13), and the sliding block (11) is slidably connected in the fixed tube (8).

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