Flat gate valve with supporting assembly

Abstract

The utility model discloses a flat gate valve with a supporting assembly, which relates to the technical field of flat gate valves and comprises a gate frame, the top of the gate frame is fixedly connected with a supporting frame, the top of the supporting frame is provided with a through groove, a fixing frame is fixedly connected in the through groove, the top of the fixing frame is fixedly connected with a fixing frame, and the top of the fixing frame is fixedly connected with the supporting frame. A telescopic groove is formed in the bottom of the fixing frame, a telescopic block is slidably arranged in the telescopic groove, a threaded groove is formed in the top of the telescopic block, the fixing frame is provided with a driving mechanism for driving the telescopic block to move, a gate is fixedly connected to the bottom of the telescopic block, and the bottom of the gate penetrates through the gate frame and extends inwards. And two supporting mechanisms are arranged on the two sides of the gate in the gate frame. Water pressure impact is effectively buffered, sealing reliability is improved, accurate positioning and high-precision flow adjustment of the gate are achieved, and long-term stable operation is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of flat gate valve technology, and in particular to a flat gate valve with a support assembly. Background Technology

[0002] In the field of fluid control, such as water conservancy projects and water supply and drainage systems, the performance of the flat gate valve, as a key fluid control device, directly affects the operation of the entire system.

[0003] Traditional flat gate valves have two main technical defects in practical applications: First, under high pressure conditions, the gate is prone to vibration and displacement when subjected to huge water pressure impacts, leading to sealing failure and fluid leakage; Second, conventional gate valve drive mechanisms lack reliable self-locking functions, and the gate position is prone to drift in vibration environments, making it difficult to meet the requirements of high-precision flow regulation. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a flat gate valve with a support assembly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A flat gate valve with a support assembly includes a gate frame, a support frame fixedly connected to the top of the gate frame, a through groove on the top of the support frame, a fixed frame fixedly connected within the through groove, a fixed bracket fixedly connected to the top of the fixed frame, a telescopic groove on the bottom of the fixed frame, a telescopic block slidably disposed within the telescopic groove, a threaded groove on the top of the telescopic block, a drive mechanism for moving the telescopic block on the fixed bracket, a gate fixedly connected to the bottom of the telescopic block, the bottom of the gate penetrating the gate frame and extending inward, and two support mechanisms located on both sides of the gate inside the gate frame.

[0007] As a further improvement of this utility model, the driving mechanism includes a motor fixedly connected to the top of the fixed frame. A driving gear is fixedly connected to the output shaft end of the motor. A driven gear meshes with the bottom of the driving gear. A worm is fixedly inserted into the driven gear. One end of the worm passes through the fixed frame and is fixedly connected to the inner wall of the fixed frame. A worm wheel is rotatably connected to the upper end of the fixed frame. The worm wheel meshes with the worm. A threaded rod is fixedly inserted into the worm wheel. The threaded end of the threaded rod passes through the telescopic groove and is threadedly connected to the threaded groove at the top of the telescopic block.

[0008] As a further improvement of this utility model, the support mechanism includes a fixed block fixedly connected to the inner side wall of the gate frame. A movable groove is provided on the side of the fixed block facing the gate. A movable block is connected to the movable groove by a spring. A sliding block is fixedly connected to the end of the movable block away from the spring.

[0009] As a further improvement of this utility model, each of the fixed blocks is fixedly connected to an inclined block on the side away from the gate.

[0010] As a further improvement of this utility model, a rubber block is fixedly connected to the bottom of the gate.

[0011] As a further improvement of this utility model, the size of each of the moving blocks matches the size of each moving slot.

[0012] The beneficial effects of this utility model are:

[0013] The support mechanisms on both sides of the gate can effectively buffer and disperse water pressure impact when the gate is closed. Together with the bottom rubber sealing block, the stability and sealing reliability of the gate valve under high pressure conditions are significantly improved, preventing fluid leakage.

[0014] Employing a worm gear self-locking structure and a threaded transmission system, the threaded rod engages with the telescopic block for transmission. Combined with the self-locking characteristics of the worm gear, precise positioning control is achieved during the gate opening and closing process. This meets the requirements of high-precision flow regulation while maintaining long-term reliability.

[0015] This invention effectively buffers water pressure impact, improves sealing reliability, achieves precise gate positioning and high-precision flow regulation, and ensures long-term stable operation. Attached Figure Description

[0016] Figure 1 This is a top view structural diagram of a flat gate valve with a support assembly proposed in this utility model.

[0017] Figure 2 This is a partial cross-sectional structural diagram from a top view of a flat gate valve with a support assembly proposed in this utility model.

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a partial cross-sectional structural diagram of a flat gate valve with a support assembly, viewed from the top.

[0020] In the diagram: 1. Gate frame, 2. Support frame, 3. Fixed frame, 4. Fixed bracket, 5. Threaded rod, 6. Telescopic groove, 7. Telescopic block, 8. Through groove, 9. Gate, 10. Rubber block, 11. Fixed block, 12. Inclined block, 13. Sliding block, 14. Moving block, 15. Motor, 16. Drive gear, 17. Driven gear, 18. Worm, 19. Spring, 20. Worm wheel, 21. Threaded groove, 22. Moving groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Figures 1-4 A flat gate valve with a support assembly includes a gate frame 1, a support frame 2 fixedly connected to the top of the gate frame 1, a through groove 8 on the top of the support frame 2, a fixed frame 3 fixedly connected within the through groove 8 to form a rigid support structure, a fixed frame 4 fixedly connected to the top of the fixed frame 3 for mounting a drive component, a telescopic groove 6 on the bottom of the fixed frame 3 to define the movement trajectory, a telescopic block 7 slidingly disposed inside the telescopic groove 6 to guide linear movement, a threaded groove 21 on the top of the telescopic block 7 for power transmission, and a drive mechanism for driving the telescopic block 7 to move, the drive mechanism including a motor 15 fixedly connected to the top of the fixed frame 4 to provide power. The power source, motor 15, has a drive gear 16 fixedly connected to its output shaft. The bottom of the drive gear 16 has a driven gear 17 that meshes with it to change the transmission direction. A worm gear 18 is fixedly inserted into the driven gear 17. One end of the worm gear 18 passes through the fixed frame 4 and is fixedly connected to the inner wall of the fixed frame 4 to ensure transmission stability. A worm wheel 20 is rotatably connected to the upper end of the fixed frame 3. The worm wheel 20 meshes with the worm gear 18 to form a self-locking structure. A threaded rod 5 is fixedly inserted into the worm wheel 20 to convert the rotational motion into linear motion. The threaded end of the threaded rod 5 passes through the telescopic groove 6 and is threadedly connected to the threaded groove 21 on the top of the telescopic block 7 to achieve precise displacement control.

[0023] The bottom of the telescopic block 7 is fixedly connected to a gate 9 as a fluid control component. The bottom of the gate 9 passes through the gate frame 1 and extends inward to form a sealing surface. A rubber block 10 is fixedly connected to the bottom of the gate 9 to enhance the sealing effect. Two support mechanisms are provided on both sides of the gate 9 inside the gate frame 1 to maintain the stability of the gate 9's movement. The support mechanism includes a fixed block 11 fixedly connected to the inner side wall of the gate frame 1 as an installation base. A moving groove 22 is opened on the side of the fixed block 11 facing the gate 9 to limit the range of movement. A moving block 14 is connected to the moving groove 22 through a spring 19 to provide elastic support force. A sliding block 13 is fixedly connected to the end of the moving block 14 away from the spring 19, which contacts the side of the gate 9 and supports it. When the gate 9 is lowered, the water flow will squeeze the gate 9. At this time, multiple sliding blocks 13 can support it. An inclined block 12 is fixedly connected to the side of each fixed block 11 away from the gate 9 to disperse the fluid impact force. The size of each moving block 14 matches the size of each moving groove 22 to ensure movement accuracy.

[0024] In use, the motor 15 is first started, which drives the driving gear 16 to rotate. The driven gear 17 changes the transmission direction and drives the worm 18 to rotate. The worm 18 meshes with the worm wheel 20 to form a reduction transmission, transmitting power to the threaded rod 5. The rotational motion of the threaded rod 5 is converted into the linear motion of the telescopic block 7 through the threaded groove 21, causing the gate 9 to move up and down along the trajectory of the telescopic groove 6. When the gate 9 descends, the rubber block 10 fits tightly against the bottom of the gate frame 1 to form a seal; when it rises, the fluid passage is opened. During the movement of the gate 9, the sliding blocks 13 on both sides remain in contact with the gate 9 under the elastic support of the moving block 14 and the spring 19, ensuring smooth movement. When the gate 9 is in the closed state and subjected to water pressure, multiple sliding blocks 13 work together, and the elastic deformation of the spring 19 buffers and disperses the impact of the water pressure on the gate 9. The inclined block 12 can effectively disperse the impact force of the fluid on the gate 9. The entire operation process is smooth and reliable, with a self-locking function, which can achieve precise positioning and reliable sealing of gate 9.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A flat gate valve with a support assembly, comprising a gate frame (1), characterized in that, A support frame (2) is fixedly connected to the top of the gate frame (1). A through groove (8) is opened on the top of the support frame (2). A fixed frame (3) is fixedly connected inside the through groove (8). A fixed frame (4) is fixedly connected to the top of the fixed frame (3). A telescopic groove (6) is opened at the bottom of the fixed frame (3). A telescopic block (7) is slidably arranged inside the telescopic groove (6). A threaded groove (21) is opened on the top of the telescopic block (7). The fixed frame (4) is provided with a driving mechanism for driving the telescopic block (7) to move. The bottom of the telescopic block (7) is fixed. A gate (9) is fixedly connected to the gate (9). The bottom of the gate (9) passes through the gate frame (1) and extends inward. Two support mechanisms are provided on both sides of the gate (9) inside the gate frame (1). The support mechanism includes a fixed block (11) fixedly connected to the inner side wall of the gate frame (1). A moving groove (22) is opened on the side of the fixed block (11) facing the gate (9). A moving block (14) is connected to the moving groove (22) through a spring (19). A sliding block (13) is fixedly connected to the end of the moving block (14) away from the spring (19).

2. A flat gate valve with a support assembly according to claim 1, characterized in that The driving mechanism includes a motor (15) fixedly connected to the top of the fixed frame (4). The output shaft end of the motor (15) is fixedly connected to a drive gear (16). The bottom of the drive gear (16) is provided with a driven gear (17) meshing with it. A worm (18) is fixedly inserted into the driven gear (17). One end of the worm (18) passes through the fixed frame (4) and is fixedly connected to the inner wall of the fixed frame (4). A worm wheel (20) is rotatably connected to the upper end of the fixed frame (3). The worm wheel (20) meshes with the worm (18). A threaded rod (5) is fixedly inserted into the worm wheel (20). The threaded end of the threaded rod (5) passes through the telescopic groove (6) and is threadedly connected to the top threaded groove (21) of the telescopic block (7).

3. A flat gate valve with a support assembly according to claim 1, characterized in that, Each of the fixed blocks (11) is fixedly connected to an inclined block (12) on the side away from the gate (9).

4. A flat gate valve with a support assembly according to claim 1, characterized in that, A rubber block (10) is fixedly connected to the bottom of the gate (9).

5. A flat gate valve with a support assembly according to claim 1, characterized in that, The size of each of the moving blocks (14) is matched with the size of each moving slot (22).

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