Y-shaped parallel gate valve

Abstract

The utility model relates to the technical field of gate valves, in particular to a Y-shaped parallel gate valve which comprises a valve body, an inlet and an outlet of the valve body are arranged in parallel, a conveying channel is arranged in the valve body, a knife switch capable of moving up and down is arranged in the valve body, a stop groove used in cooperation with the knife switch is formed in the valve body, and the conveying channel is communicated with the conveying channel. The cut-off groove vertically penetrates through the conveying channel, and when the knife switch moves to the bottommost portion, the knife switch closes the conveying channel. The valve motor drives the lead screw to rotate so as to drive the driving block and the knife switch to move up and down, and opening and closing of the conveying channel are achieved. The matched design of the knife switch and the stop groove ensures good sealing performance, the valve is suitable for occasions where fluid flowing needs to be strictly controlled, meanwhile, the knife switch and the driving block are detachably connected, the installation column and the valve body are detachably connected, disassembly is convenient, and then the valve is convenient to repair and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a Y-type parallel gate valve. Background Art

[0002] In the field of gate valve technology, traditional gate valve designs often have some problems, especially in situations where strict control of fluid flow is required. These problems mainly include but are not limited to the following:

[0003] Inadequate sealing performance: When closing, traditional gate valves often do not fit tightly enough between the gate blade and the cut-off groove, leading to fluid leakage. This leakage not only wastes resources but also poses a threat to the environment and production safety.

[0004] Difficulty in repair and maintenance: Traditional gate valves often have complex structural designs, and the connection between the gate blade and the drive mechanism is not convenient, resulting in a significant amount of time and effort required for repair and maintenance. This not only increases maintenance costs but can also impact production schedules. To address this, we propose a Y-type parallel gate valve. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a Y-type parallel gate valve.

[0006] The technical solution of the utility model is:

[0007] A Y-type parallel gate valve comprises a valve body, the inlet and outlet of the valve body are arranged in parallel, a conveying channel is provided in the valve body, a gate knife which can move up and down is provided in the valve body, a cut-off groove used in conjunction with the gate knife is opened in the valve body, the cut-off groove vertically passes through the conveying channel, and when the gate knife moves to the bottom, the gate knife closes the conveying channel, a mounting column is provided above the valve body, the mounting column is fixed to the top of the valve body by a plurality of external fixing bolts, a drive block which can move up and down is provided in the mounting column, the gate knife is detachably connected to the bottom of the drive block, a movable groove for the drive block to move up and down is opened in the valve body, the movable groove extends into the mounting column, a screw rod is connected to the inner thread of the drive block, and a valve motor whose output shaft is coaxially fixed with the screw rod is installed on the top of the mounting column.

[0008] As a preferred technical solution, a sealing gasket is fixedly connected to the outer wall of the gate knife near the bottom end, and the sealing gasket is tightly fitted to the inner wall of the cut-off groove.

[0009] As a preferred technical solution, a lower connecting plate is integrally formed at the top of the knife, and an upper connecting plate is integrally formed at the bottom of the drive block. The lower connecting plate and the upper connecting plate are fixedly connected by two symmetrically arranged internal fixing bolts.

[0010] As a preferred technical solution, two second guide rods are symmetrically fixedly connected to the top of the movable groove, and the two second guide rods are both plug-connected to the driving block.

[0011] As a preferred technical solution, two fixed columns are symmetrically fixedly connected to the bottom of the movable groove, and a first guide rod is installed in each fixed column for sliding up and down, and the top of the first guide rod is fixed to the bottom of the lower connecting plate.

[0012] As a preferred technical solution, when the gate moves to the uppermost position, it is completely separated from the conveying channel, and at this time the first guide rod is not separated from the fixed column.

[0013] As a preferred technical solution, the inlet and outlet of the valve body are both integrally formed with a flange.

[0014] As a preferred technical solution, the driving block never separates from the second guide rod during the up and down movement, and the outer ring walls of the upper connecting plate and the lower connecting plate are tightly fitted with the inner wall of the movable groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This utility model uses a valve motor to drive the screw to rotate, which in turn drives the drive block and gate knife to move up and down, opening and closing the conveying channel. The design of the gate knife and cut-off groove ensures excellent sealing performance, suitable for applications requiring strict control of fluid flow. The gate knife and drive block, as well as the mounting post and valve body, are all connected in a detachable manner, making it easy to disassemble and facilitate valve repair and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 Schematic diagram of the internal structure;

[0019] Figure 3 This is a schematic diagram of the structure of the driving block in the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the knife switch in the utility model;

[0021] The meaning of each number in the figure is:

[0022] 1. Valve body; 10. Delivery channel; 11. Cut-off groove; 12. Gate knife; 120. Sealing gasket; 13. Movable groove; 14. Fixed column; 15. First guide rod; 16. Lower connecting plate; 17. Internal fixing bolt; 18. External connecting plate; 19. External fixing bolt; 110. Drive block; 111. Second guide rod; 112. Upper connecting plate; 2. Valve motor; 20. Screw rod; 3. Mounting column. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on 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.

[0024] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0025] A Y-shaped parallel gate valve comprises a valve body 1 with parallel inlet and outlet openings. A delivery channel 10 is provided within the valve body 1, along with a vertically movable blade 12. A cutoff groove 11 is defined within the valve body 1, which cooperates with the blade 12. The cutoff groove 11 extends vertically through the delivery channel 10, and when the blade 12 reaches its lowest position, it closes the delivery channel 10. A mounting post 3 is located above the valve body 1 and is secured to the top of the valve body 1 by a plurality of external fixing bolts 19. A vertically movable drive block 110 is located within the mounting post 3, and the blade 12 is detachably connected to the bottom of the drive block 110. A movable slot 13 is defined within the valve body 1 for the vertical movement of the drive block 110, extending into the mounting post 3. A screw 20 is threadedly connected to the drive block 110, and a valve motor 2 is mounted on the top of the mounting post 3, with its output shaft coaxially fixed to the screw 20. This invention provides a Y-shaped parallel gate valve with a compact structure and convenient operation. The valve motor 2 drives the screw 20 to rotate, which in turn drives the drive block 110 and the blade 12 to move up and down, opening and closing the conveying channel 10. The coordinated design of the blade 12 and the cutoff groove 11 ensures excellent sealing performance, suitable for applications requiring strict control of fluid flow. The blade 12 and the drive block 110, as well as the mounting post 3 and the valve body 1, are all fixed with bolts, making them easy to disassemble and facilitate valve repair and maintenance.

[0026] It should be supplemented that an external connection plate 18 is integrally formed on the top of the valve body 1 and is fixed to the mounting column 3 via external fixing bolts 19 .

[0027] As a preferred feature of this embodiment, a sealing gasket 120 is fixedly connected to the outer wall of the gate blade 12 near the bottom end. The sealing gasket 120 is tightly fitted to the inner wall of the cut-off groove 11. The addition of the sealing gasket 120 further improves the sealing performance of the gate valve, preventing fluid leakage when the gate blade 12 is closed, thereby ensuring the reliability and durability of the gate valve.

[0028] As a preferred feature of this embodiment, a lower connecting plate 16 is integrally formed at the top of the blade 12, and an upper connecting plate 112 is integrally formed at the bottom of the driver block 110. The lower connecting plate 16 and the upper connecting plate 112 are securely connected by two symmetrically arranged internal fixing bolts 17. This removable connection facilitates installation and removal of the blade 12 and driver block 110, facilitating maintenance and replacement. Furthermore, the secure connection achieved by the internal fixing bolts 17 ensures the stability of the blade 12 during movement.

[0029] As a preferred feature of this embodiment, two second guide rods 111 are symmetrically fixedly connected to the top of the movable groove 13. Both second guide rods 111 are pluggably connected to the drive block 110. The design of the second guide rods 111 provides a stable guide for the drive block 110, ensuring the linearity and stability of the drive block 110 during its upward and downward movement, thereby improving the operating accuracy and reliability of the gate valve.

[0030] As a preferred feature of this embodiment, two fixed columns 14 are symmetrically fixed to the bottom of the movable groove 13. A first guide rod 15 is mounted in each fixed column 14 for vertical sliding movement. The top of the first guide rod 15 is fixed to the bottom of the lower connecting plate 16. The combination of the first guide rod 15 and the fixed columns 14 provides additional guidance and support for the gate blade 12, further enhancing the stability of the gate blade 12 during movement. This design also helps reduce the lateral force generated by the gate blade 12 during movement, extending the service life of the gate valve.

[0031] As a preferred feature of this embodiment, when the gate 12 reaches its uppermost position, it is completely disengaged from the conveying channel 10, and at this point, the first guide rod 15 remains attached to the fixed post 14. This design ensures that the gate 12 does not interfere with the flow of fluid when fully open, thereby improving fluid flow efficiency. Furthermore, the continued connection between the first guide rod 15 and the fixed post 14 ensures the stability of the gate 12 when open.

[0032] As a preferred feature of this embodiment, the inlet and outlet of the valve body 1 are integrally formed with a flange. The flange design facilitates connection and removal of the gate valve from the pipeline, improving the versatility and adaptability of the gate valve. Furthermore, the flange connection ensures a secure and leak-tight connection.

[0033] As a preferred feature of this embodiment, the driver block 110 never disengages from the second guide rod 111 during its vertical movement, and the outer annular walls of both the upper connecting plate 112 and the lower connecting plate 16 tightly adhere to the inner wall of the movable groove 13. This design further enhances the stability of the driver block 110 and the blade 12 during movement, preventing degradation or damage to the seal due to shaking or misalignment. It also improves the overall rigidity and durability of the gate valve.

[0034] When the Y-type parallel gate valve of the utility model is in use:

[0035] First, when the delivery channel 10 needs to be opened to allow fluid to flow, the valve motor 2 is activated. The motor's output shaft rotates, driving the coaxially fixed screw 20 to rotate along with it. Because the drive block 110 is internally threaded with the screw 20, the screw 20's rotation translates into vertical linear motion of the drive block 110, specifically, upward movement of the drive block 110 along the movable slot 13.

[0036] The upward movement of the driver block 110 is transmitted to the blade 12 via the upper connecting plate 112 and the lower connecting plate 16, connected by internal fixing bolts 17, causing the blade 12 to move upward. During this process, the first guide rod 15 slides up and down within the fixing column 14, providing additional guidance and support for the blade 12 and ensuring its stability. Furthermore, the plug-in connection between the second guide rod 111 and the driver block 110 ensures the linearity and stability of the driver block 110 during its upward and downward movement.

[0037] When the gate 12 moves to the uppermost position, it is completely separated from the delivery channel 10, and the fluid can now flow freely through the delivery channel 10. Although the gate 12 is in the open state, the first guide rod 15 remains connected to the fixed column 14, which ensures the stability of the gate 12 in the open state and prevents shaking or deviation caused by external factors.

[0038] When it's necessary to close the delivery channel 10 to prevent fluid flow, the valve motor 2 rotates in the opposite direction, driving the screw 20 in the opposite direction. This causes the drive block 110 to move downward along the movable slot 13, which in turn drives the gate blade 12 downward via the internal fixing bolt 17. As the gate blade 12 gradually descends, it eventually enters the cutoff slot 11. When the gate blade 12 reaches its lowest point, it completely closes the delivery channel 10.

[0039] During the closing process of the gate knife 12, the sealing gasket 120 is in close contact with the inner wall of the cut-off groove 11, further improving the sealing performance of the gate valve and preventing fluid leakage when the gate knife 12 is closed. This design ensures the reliability and durability of the gate valve and is suitable for occasions where strict control of fluid flow is required.

[0040] Furthermore, the entire gate valve boasts a compact structure and convenient operation. The blade 12 and drive block 110, as well as the mounting post 3 and valve body 1, are both securely connected by bolts. This detachable connection facilitates disassembly and maintenance. When repairs or maintenance are required, the relevant components can be easily removed, enhancing maintenance convenience.

[0041] In summary, the Y-shaped parallel gate valve of the present invention uses the valve motor 2 to drive the screw 20 to rotate, thereby driving the drive block 110 and the gate blade 12 to move up and down, thereby opening and closing the conveying channel 10. It has a reasonable structural design, simple operation, good sealing performance, and is easy to repair and maintain, making it suitable for various occasions requiring fluid flow control.

[0042] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A Y-type parallel gate valve, characterized by: The invention comprises a valve body (1), wherein the inlet and outlet of the valve body (1) are arranged in parallel, a delivery channel (10) is provided in the valve body (1), a gate knife (12) which can move up and down is provided in the valve body (1), a cut-off groove (11) used in conjunction with the gate knife (12) is provided in the valve body (1), the cut-off groove (11) vertically passes through the delivery channel (10), and when the gate knife (12) moves to the bottom, the gate knife (12) closes the delivery channel (10), a mounting column (3) is provided above the valve body (1), and the mounting column (3) is connected to the delivery channel (10) by a plurality of external A fixing bolt (19) is fixed to the top of the valve body (1), a driving block (110) that can move up and down is provided in the mounting column (3), the gate knife (12) is detachably connected to the bottom of the driving block (110), a movable groove (13) for the driving block (110) to move up and down is provided in the valve body (1), the movable groove (13) extends into the mounting column (3), a screw rod (20) is connected to the internal thread of the driving block (110), and a valve motor (2) whose output shaft is coaxially fixed with the screw rod (20) is installed on the top of the mounting column (3).

2. The Y-type parallel gate valve according to claim 1, characterized in that: A sealing gasket (120) is fixedly connected to the outer wall of the gate knife (12) near the bottom end, and the sealing gasket (120) is tightly fitted to the inner wall of the cut-off groove (11).

3. The Y-type parallel gate valve according to claim 2, characterized in that: A lower connecting plate (16) is integrally formed at the top of the gate knife (12), and an upper connecting plate (112) is integrally formed at the bottom of the drive block (110). The lower connecting plate (16) and the upper connecting plate (112) are fixedly connected by two symmetrically arranged internal fixing bolts (17).

4. The Y-type parallel gate valve according to claim 3, characterized in that: Two second guide rods (111) are symmetrically fixedly connected to the top of the movable groove (13), and the two second guide rods (111) are both plug-connected to the driving block (110).

5. The Y-type parallel gate valve according to claim 4, characterized in that: Two fixed columns (14) are symmetrically fixedly connected to the bottom of the movable groove (13), and a first guide rod (15) is installed in each of the fixed columns (14) to slide up and down, and the top of the first guide rod (15) is fixed to the bottom of the lower connecting plate (16).

6. The Y-type parallel gate valve according to claim 5, characterized in that: When the gate knife (12) moves to the uppermost position, it is completely separated from the conveying channel (10), and at this time, the first guide rod (15) is not separated from the fixed column (14).

7. The Y-type parallel gate valve according to claim 6, characterized in that: The inlet and outlet of the valve body (1) are both integrally formed with a flange.

8. The Y-type parallel gate valve according to claim 7, characterized in that: The driving block (110) never separates from the second guide rod (111) during the process of moving up and down, and the outer ring walls of the upper connecting plate (112) and the lower connecting plate (16) are tightly fitted with the inner wall of the movable groove (13).

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