Pipeline flow limiting valve with pressure self-regulation function

Abstract

This utility model discloses a pipeline flow-limiting shut-off valve with pressure self-regulation function, relating to the field of shut-off valve technology. The shut-off valve includes a valve body with flanges at both ends. Each flange has several mounting holes and a sealing mechanism on its surface. A valve cover is mounted on the valve body and fixed to it with several bolts. Symmetrical fixing rods are located on the top of the valve cover, with fixing plates at the top of each rod. A valve adjustment mechanism is located above the valve cover, and a pressure control mechanism is located at the bottom of the adjustment mechanism. The sealing mechanism ensures greater stability and improved sealing during installation. The valve adjustment mechanism allows for easy opening and closing of the valve body. The pressure control mechanism regulates the water pressure, preventing excessive pressure from causing pipe cracking or insufficient pressure from hindering water flow, thus improving overall performance.

Description

Technical Field

[0001] This utility model relates to the field of shut-off valve technology, specifically a pipeline flow limiting shut-off valve with pressure self-regulation function. Background Technology

[0002] In numerous industrial applications, controlling the flow of fluids is a crucial task, especially in liquid or gas transport systems. In these systems, valves play a vital role, controlling, regulating, isolating, or releasing fluids. Among them, bellows gate valves, due to their unique structure and operating characteristics, demonstrate superior performance in high-precision, high-pressure fluid control and are widely used in petrochemical, pharmaceutical, and fine chemical industries.

[0003] Existing gate valves are not convenient to use, have poor sealing performance during installation, and are not easy to adjust the water pressure. When the water pressure is too high, the pipe is prone to cracking, and when the pressure is too low, the water flow is not smooth, which greatly limits their use.

[0004] Based on this, a pipeline flow-limiting shut-off valve with pressure self-regulation function is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this utility model is to provide a pipeline flow-limiting shut-off valve with pressure self-regulation function, so as to solve the problems of existing shut-off valves in the background art that are not convenient to use, have poor sealing performance during installation, are not easy to adjust the water pressure, and are prone to pipeline cracking when the water pressure is too high, while water flow is not smooth when the pressure is too low, resulting in great limitations on use.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A pipeline flow limiting shut-off valve with pressure self-regulation function includes a valve body, flanges at both ends of the valve body, a plurality of mounting holes on the flanges, a sealing mechanism on the surface of the flanges, a valve cover on the valve body, the valve cover being fixedly installed to the valve body by a plurality of bolts, a valve adjusting mechanism being provided above the valve cover, and a pressure control mechanism being provided at the bottom of the valve adjusting mechanism.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative: the valve cover is provided with symmetrical fixing rods on the top, and the fixing rods are provided with fixing plates at their top ends.

[0010] In one alternative: a connecting rod is provided through the fixed plate, and a turntable is provided at the top of the connecting rod.

[0011] In one alternative: the valve regulating mechanism includes a screw, the screw is located at the bottom end of the connecting rod, and the screw is threadedly rotatably connected to the valve cover, and the bottom end of the screw is provided with a fixing block inside the valve body (1).

[0012] In one alternative: a baffle is provided in the valve body, and a sealing port is provided on the baffle.

[0013] In one alternative: the pressure control mechanism includes a sealing cylinder, which is fixedly connected to the bottom of the fixed block, and the outer side of the sealing cylinder is in contact with the side wall of the sealing port. The sealing cylinder is provided with a plurality of evenly distributed through holes.

[0014] In one alternative: a limiting groove is provided on the partition plate at the upper end of the sealing port, and a limiting plate is provided at the corresponding position on the outer side of the top of the sealing cylinder, with the limiting plate and the limiting groove cooperating with each other.

[0015] In one alternative: the sealing mechanism includes a mounting groove located outside the flange, and a sealing gasket is disposed within the mounting groove.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention features a sealing mechanism that makes the valve body more stable during installation and improves its sealing performance; a valve adjustment mechanism that allows for easy opening and closing of the valve body; and a pressure control mechanism that adjusts the water pressure to prevent pipe cracking when the water pressure is too high and water flow obstruction when the pressure is too low, thereby improving the overall performance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of one side of this utility model.

[0019] Figure 2 This is a schematic diagram of the overall structure of the other side of this utility model.

[0020] Figure 3 This is a schematic diagram of the internal structure of the valve body of this utility model.

[0021] Figure 4 This is a schematic diagram of the partition structure of this utility model.

[0022] Figure reference numerals: 1. Valve body; 2. Flange; 3. Mounting hole; 4. Mounting groove; 5. Sealing gasket; 6. Valve cover; 7. Bolt; 8. Fixing rod; 9. Fixing plate; 10. Connecting rod; 11. Turntable; 12. Screw; 13. Fixing block; 14. Sealing cylinder; 15. Through hole; 16. Limiting plate; 17. Partition plate; 18. Sealing port; 19. Limiting groove. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] In one embodiment, such as Figures 1-4 As shown, a pipeline flow-limiting shut-off valve with pressure self-regulation function includes a valve body 1, flanges 2 at both ends of the valve body 1, several mounting holes 3 on the flanges 2, a sealing mechanism on the surface of the flanges 2, a valve cover 6 on the valve body 1, and the valve cover 6 is fixedly installed to the valve body 1 by several bolts 7. A valve adjustment mechanism is provided above the valve cover 6, and a pressure control mechanism is provided at the bottom of the valve adjustment mechanism. The sealing mechanism makes the valve body 1 more stable during installation and improves the sealing performance. The valve adjustment mechanism can open and close the valve body 1, making it convenient to use. The pressure control mechanism can adjust the water pressure to prevent the pipeline from cracking due to excessive water pressure and the water flow from being too low due to insufficient pressure, thus improving the performance.

[0025] In one embodiment, such as Figure 1 As shown, the valve cover 6 is provided with symmetrical fixing rods 8 on the top, and a fixing plate 9 is provided at the top of the fixing rods 8. The fixing plate 9 is fixed by the fixing rods 8.

[0026] In one embodiment, such as Figure 1 As shown, a connecting rod 10 is provided through the fixed plate 9, and a turntable 11 is provided at the top of the connecting rod 10. Rotating the turntable 11 can drive the connecting rod 10 to rotate synchronously.

[0027] In one embodiment, such as Figure 3 As shown, the valve regulating mechanism includes a screw 12, which is located at the bottom end of the connecting rod 10 and is threadedly connected to the valve cover 6. A fixing block 13 is provided at the bottom end of the screw 12 inside the valve body 1. During the rotation of the connecting rod 10, the screw 12 is driven to rotate synchronously, causing the fixing block 13 to rise and fall, thereby controlling the opening and closing of the valve body 1.

[0028] In one embodiment, such as Figure 4 As shown, a baffle 17 is provided inside the valve body 1, and a sealing port 18 is provided on the baffle 17, through which water flows.

[0029] In one embodiment, such as Figure 3As shown, the pressure control mechanism includes a sealing cylinder 14, which is fixedly connected to the bottom of the fixing block 13. The outer side of the sealing cylinder 14 is in contact with the side wall of the sealing port 18. The sealing cylinder 14 is provided with several evenly distributed through holes 15. The fixing block 13 drives the sealing cylinder 14 to move up and down to adjust the sealing port 18. When the sealing cylinder 14 rises, the water flows out through the through holes 15, which achieves the effect of controlling the flow rate when the water is flowing, making it easy to adjust the water storage pressure. This facilitates pressure regulation and avoids the phenomenon of pipe cracking due to excessive water storage pressure. It also prevents water blockage due to insufficient pressure.

[0030] In one embodiment, such as Figure 3 and Figure 4 As shown, a limiting groove 19 is provided on the partition plate 17 at the upper end of the sealing port 18, and a limiting plate 16 is provided at the corresponding position on the outer side of the top of the sealing cylinder 14. The limiting plate 16 and the limiting groove 19 cooperate with each other, and the limiting plate 16 and the limiting groove 19 squeeze and limit each other, so that the sealing port 18 can be completely sealed.

[0031] In one embodiment, such as Figure 1 As shown, the sealing mechanism includes a mounting groove 4, which is located outside the flange 2. A sealing gasket 5 is provided inside the mounting groove 4, which can make the valve body 1 more stable during installation and improve the sealing performance.

[0032] Working principle: During use, the valve body 1 is installed and fixed at both ends through flanges 2. The sealing gasket 5 makes the valve body 1 more stable during installation and improves the sealing performance. Rotating the turntable 11 can drive the connecting rod 10 to rotate freely in both directions. During the rotation of the connecting rod 10, the screw 12 rotates synchronously, causing the fixed block 13 to rise and fall. When the turntable 11 is rotated forward, when the sealing cylinder 14 rises, the water flows out through the through hole 15, achieving the effect of controlling the flow rate of water during flow, which facilitates the adjustment of water storage pressure, thereby achieving the function of pressure regulation, avoiding the phenomenon of pipe cracking due to excessive water storage pressure, and also preventing water blockage due to insufficient pressure. When the turntable 11 is rotated in reverse, when the sealing cylinder 14 falls, it is until the limit plate 16 and the limit groove 19 squeeze each other to limit the position, which can completely seal the sealing port 18.

Claims

1. A pipeline flow limiting stop valve with pressure self-adjusting function, comprising a valve body (1), characterized in that, The valve body (1) is provided with flanges (2) at both ends. The flanges (2) are provided with several mounting holes (3). The flanges (2) are provided with a sealing mechanism. The valve body (1) is provided with a valve cover (6). The valve cover (6) is fixedly installed to the valve body (1) by several bolts (7). A valve adjustment mechanism is provided above the valve cover (6). A pressure control mechanism is provided at the bottom of the valve adjustment mechanism.

2. The pipeline flow limiting stop valve with pressure self-adjusting function according to claim 1, characterized in that, The valve cover (6) is provided with symmetrical fixing rods (8) at the top, and a fixing plate (9) is provided at the top of the fixing rods (8).

3. The pipeline flow limiting stop valve with pressure self-adjusting function according to claim 2, characterized in that, A connecting rod (10) is provided through the fixed plate (9), and a turntable (11) is provided at the top of the connecting rod (10).

4. The pipeline flow-restricting stop valve with pressure self-adjusting function according to claim 3, characterized in that, The valve regulating mechanism includes a screw (12), which is located at the bottom end of the connecting rod (10) and is threadedly connected to the valve cover (6). The bottom end of the screw (12) is located inside the valve body (1) and a fixing block (13) is provided.

5. The pipe flow limiting stop valve with pressure self-adjusting function according to claim 1, characterized in that, The valve body (1) is provided with a partition (17), and a sealing port (18) is provided on the partition (17).

6. The pipeline flow limiting and shut-off valve with pressure self-regulation function according to claim 5, characterized in that, The pressure control mechanism includes a sealing cylinder (14), which is fixedly connected to the bottom of the fixing block (13), and the outer side of the sealing cylinder (14) is in contact with the side wall of the sealing port (18). The sealing cylinder (14) is provided with a number of evenly distributed through holes (15).

7. The pipeline flow limiting stop valve with pressure self-adjusting function according to claim 6, characterized in that, A limiting groove (19) is provided on the partition (17) at the upper end of the sealing port (18), and a limiting plate (16) is provided on the corresponding position on the outer side of the top of the sealing cylinder (14), and the limiting plate (16) and the limiting groove (19) cooperate with each other.

8. The pipe flow limiting stop valve with pressure self-adjusting function according to claim 1, characterized in that, The sealing mechanism includes a mounting groove (4) located outside the flange (2), and a sealing gasket (5) is provided inside the mounting groove (4).

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