Regulating valve with high sealing performance

Abstract

The utility model relates to the field of regulating valves, and discloses a high-tightness regulating valve which comprises a locking plate, a positioning column is slidably connected to the rear side of the top of the locking plate, a connecting plate is fixedly connected to the top of the positioning column, a positioning block is fixedly connected to the front side of the connecting plate, a plurality of mounting blocks are slidably connected to the inner wall of the positioning block, and the mounting blocks are fixedly connected to the front side of the connecting plate. First dampers are fixedly connected to the close sides of the two mounting blocks, first push plates are slidably connected to the close sides of the tops of the mounting blocks, and butt joint rods are fixedly connected to the far sides of the two first push plates. According to the utility model, the first damper, the first push plate, the spring, the butt joint rod, the pull rod, the second extrusion block and other parts are matched for use, so that the problem that the regulating valve is short due to a water hammer phenomenon in the use process can be effectively solved, the overall service life is effectively prolonged, and the high sealing performance in the long-term use process is ensured.

Description

Technical Field

[0001] The utility model relates to the field of regulating valves, in particular to a regulating valve with high sealing performance. Background Art

[0002] The application range of regulating valves is very wide, and they are widely used in various fields such as petroleum, chemical industry, electric power, metallurgy and steel.

[0003] After searching, Chinese patent publication number: CN106090267A discloses a highly sealed regulating valve, including a valve body assembly and an actuator assembly, the valve body assembly includes a valve body, a valve stem, a valve disc and a sealing ring, the valve body is provided with a valve seat, the sealing ring is fixed on the valve seat, the sealing ring is annular, and an annular groove is provided on the upper surface of the sealing ring, the valve disc is made of wear-resistant metal, the upper end of the valve disc is connected to the valve stem, and the bottom surface of the valve disc is provided with an annular boss matching the annular groove of the sealing ring, and the valve disc and the valve seat are tightly fitted through the annular boss and the sealing ring with the annular groove. The regulating valve can improve the sealing of the regulating valve and effectively avoid the reduction of the sealing of the regulating valve due to the erosion of the medium during long-term use.

[0004] However, the regulating valve does not reduce or buffer the water hammer effect generated during use. Long-term exposure to the water hammer effect will cause internal parts to shake, thereby gradually losing their sealing performance and increasing maintenance costs. Therefore, a highly sealing regulating valve is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a high-sealing regulating valve, aiming to improve the problem of the lack of buffer components affecting the service life in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-sealing regulating valve, comprising a locking plate, a positioning column is slidably connected to the top rear side of the locking plate, a connecting plate is fixedly connected to the top of the positioning column, a positioning block is fixedly connected to the front side of the connecting plate, a plurality of mounting blocks are slidably connected to the inner wall of the positioning block, a first damper is fixedly connected to the adjacent side of two mounting blocks, a first push plate is slidably connected to the adjacent side of the top of the mounting block, a docking rod is fixedly connected to the distant side of the two first push plates, a spring is arranged on the distant side of the two first push plates, a displacement plate is fixedly connected to the distant side of the two docking rods, a pull rod is rotatably connected to the bottom two sides of the displacement plate, a second extrusion block is rotatably connected to the middle part of the pull rod, a plurality of second dampers are arranged on the inner wall of the mounting block, a second push plate is fixedly connected to the output end of the second damper, a plurality of third dampers are arranged on the inner wall of the positioning block, a first extrusion block is slidably connected to the adjacent side of the two first push plates, and a sealing adjustment component is arranged on the front side of the locking plate.

[0007] As a further description of the above technical solution:

[0008] The sealing adjustment assembly comprises a valve body, which is slidably connected to the top front side of the locking plate, a sealing head is threadedly connected to the left side of the valve body, and a rubber ring is arranged on the inner wall of the sealing head.

[0009] As a further description of the above technical solution:

[0010] The first extrusion block is fixedly connected to the rear side of the valve body.

[0011] As a further description of the above technical solution:

[0012] The output end of the third damper is fixedly connected to the two sides of the mounting block, and one side of the spring is arranged on the adjacent side of the two mounting blocks.

[0013] As a further description of the above technical solution:

[0014] The second extrusion block is slidably connected to the adjacent side of the two second push plates.

[0015] As a further description of the above technical solution:

[0016] One side of the second damper is rotatably connected to the far side of the inner wall of the mounting block.

[0017] As a further description of the above technical solution:

[0018] The first extrusion block is slidably connected to the output end of the first damper.

[0019] As a further description of the above technical solution:

[0020] The displacement plate is slidably connected to both sides of the inner wall of the mounting block.

[0021] The utility model has the following beneficial effects:

[0022] In the utility model, through the coordinated use of the first damper, the first push plate, the spring, the docking rod, the pull rod, the second extrusion block and other components, the shortcomings of the regulating valve caused by the water hammer phenomenon during use can be effectively resolved, the overall service life can be effectively improved, and high sealing can be ensured during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional schematic diagram of a high-sealing regulating valve proposed by the utility model;

[0024] Figure 2 This is a schematic diagram of the side view structure of a valve body of a high-sealing regulating valve proposed by the utility model;

[0025] Figure 3 This is a structural schematic diagram of a mounting block of a high-sealing regulating valve proposed by the utility model;

[0026] Figure 4 The utility model is a schematic structural cross-sectional view of a mounting block of a regulating valve with high sealing performance.

[0027] Legend:

[0028] 1. Locking plate; 2. Positioning column; 3. Connecting plate; 4. Positioning block; 5. Valve body; 6. Sealing head; 7. Mounting block; 8. First extrusion block; 9. First damper; 10. First push plate; 11. Spring; 12. Docking rod; 13. Displacement plate; 14. Pull rod; 15. Second extrusion block; 16. Second push plate; 17. Second damper; 18. Third damper. DETAILED DESCRIPTION

[0029] 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.

[0030] Reference Figure 1 , Figure 3 , Figure 4The utility model provides an embodiment: a high-sealing regulating valve, including a locking plate 1, a positioning column 2 is slidably connected to the rear side of the top of the locking plate 1, a connecting plate 3 is fixedly connected to the top of the positioning column 2, a positioning block 4 is fixedly connected to the front side of the connecting plate 3, a plurality of mounting blocks 7 are slidably connected to the inner wall of the positioning block 4, a first damper 9 is fixedly connected to the adjacent side of the two mounting blocks 7, a first push plate 10 is slidably connected to the adjacent side of the top of the mounting block 7, a docking rod 12 is fixedly connected to the distant side of the two first push plates 10, and the distant sides of the two first push plates 10 A spring 11 is provided on one side, and a displacement plate 13 is fixedly connected to the far side of the two docking rods 12. Pull rods 14 are rotatably connected to the bottom two sides of the displacement plate 13, and the middle part of the pull rod 14 is rotatably connected to the second extrusion block 15. A plurality of second dampers 17 are provided on both sides of the inner wall of the mounting block 7, and a second push plate 16 is fixedly connected to the output end of the second damper 17. A plurality of third dampers 18 are provided on both sides of the inner wall of the positioning block 4, and a first extrusion block 8 is slidably connected to the adjacent side of the two first push plates 10, and a sealing adjustment assembly is provided on the front side of the locking plate 1.

[0031] During the operation of the regulating valve, water hammer effect may occur in the valve body 5 due to the change of water pressure. In order to reduce the impact of this effect on the life of the valve body 5, we have specially designed a multiple buffer mechanism. When the valve body 5 shakes left and right, multiple third dampers 18 will play a role to ensure that the mounting block 7 slides stably in the inner groove of the positioning block 4. If the valve body 5 shakes back and forth, it will first squeeze the first squeeze block 8 to make it retreat, and at this time the first damper 9 will start the first buffer. As the first squeeze block 8 squeezes the first push plates 10 on both sides to move to both sides, these push plates will squeeze the springs 11 on both sides and push the displacement plate 13 connected to the docking rod 12 to slide. This action will pull the second squeeze block 15 connected to the middle of the pull rod 14 to lift up, so that the second squeeze block 15 applies pressure to the second push plates 16 on both sides, and cooperates with multiple second dampers 17 to complete the second buffer. This carefully designed buffer system ensures the stability of the valve body 5 and effectively avoids the loosening of the connection and the loss of sealing due to the long-term water hammer effect.

[0032] The first extrusion block 8 is fixedly connected to the rear side of the valve body 5 to fix the connection position of the first extrusion block 8. The output end of the third damper 18 is fixedly connected to both sides of the mounting block 7. One side of the spring 11 is arranged on the adjacent side of the two mounting blocks 7. This design is to limit the positions of both sides of the spring 11. The second extrusion block 15 is slidably connected to the adjacent side of the two second push plates 16. Driven by the pull rod 14, the two sides of the pull rod 14 can gradually straighten, thereby pushing the second extrusion block 15 to move upward and squeeze the second push plates 16 on both sides. One side of the second damper 17 is rotatably connected to the far side of the inner wall of the mounting block 7 to limit the positions of multiple second dampers 17. The first extrusion block 8 is slidably connected to the output end of the first damper 9. Such a design can achieve the first buffering. The displacement plate 13 is slidably connected to both sides of the inner wall of the mounting block 7.

[0033] Reference Figure 2 The sealing assembly includes a valve body 5, which is slidably connected to the top front side of the locking plate 1. The left side of the valve body 5 is threadedly connected to a sealing head 6, and the inner wall of the sealing head 6 is provided with a rubber ring.

[0034] The installation height of the valve body 5 is set by adjusting the fixing height of the locking plate 1 to ensure that it is accurate. Then, the positioning column 2 is set to stabilize the overall structure and enhance stability. During the connection process, the external water pipe must first be tightly connected to the sealing head 6, and then fixed to one side of the valve body 5 through the thread of the sealing head 6. The function of the sealing head 6 is to apply appropriate pressure to the rubber ring at the connection, thereby ensuring high sealing of the connection.

[0035] Working principle: When using this high-sealing regulating valve, during installation, first determine the placement height of the valve body 5 by fixing the height of the locking plate 1, then ensure the overall stability by setting the positioning column 2, and first connect the external water pipe to the sealing head 6, and then thread the sealing head 6 to one side of the valve body 5, and use the sealing head 6 to squeeze the rubber ring at the connection to ensure high sealing after connection.

[0036] During the use of the regulating valve, as the water pressure of the regulating valve is adjusted, a water hammer effect will be formed in the valve body 5. In order to reduce the influence of the water hammer on the service life of the valve body 5, when the valve body 5 shakes left and right, a plurality of third dampers 18 are used to ensure the sliding positioning of the mounting block 7 in the inner groove of the positioning block 4. If the valve body 5 shakes back and forth, the first extrusion block 8 will be squeezed to retreat first, and the first damper 9 will be used for primary buffering. Then, while the first extrusion block 8 squeezes the first push plates 10 on both sides to move to both sides, the first push plates 10 will squeeze the springs 11 on both sides and push the displacement plates 13 connected to the docking rods 12 on both sides to slide, so that the displacement plates 13 connected to the middle of the pull rod 14 can be pulled up, so that the second extrusion block 15 can work on the second push plates 16 on both sides, and cooperate with the setting of the plurality of second dampers 17 to complete the secondary buffering, thereby ensuring the stability of the valve body 5 and avoiding the connection with the water pipe from being separated due to the long-term water hammer effect, thereby losing the sealing.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A regulating valve with high sealing performance, comprising a locking plate (1), characterized in that: The top rear side of the locking plate (1) is slidably connected to a positioning column (2), the top of the positioning column (2) is fixedly connected to a connecting plate (3), the front side of the connecting plate (3) is fixedly connected to a positioning block (4), the inner wall of the positioning block (4) is slidably connected to a plurality of mounting blocks (7), the adjacent sides of two mounting blocks (7) are fixedly connected to a first damper (9), the adjacent sides of the tops of the mounting blocks (7) are slidably connected to a first push plate (10), the distant sides of the two first push plates (10) are fixedly connected to a docking rod (12), the distant sides of the two first push plates (10) are provided with a spring (11), and the two A displacement plate (13) is fixedly connected to the far side of the docking rod (12), and pull rods (14) are rotatably connected to the bottom two sides of the displacement plate (13), and the middle of the pull rod (14) is rotatably connected to the second extrusion block (15). A plurality of second dampers (17) are arranged on both sides of the inner wall of the mounting block (7), and the output end of the second damper (17) is fixedly connected to the second push plate (16). A plurality of third dampers (18) are arranged on both sides of the inner wall of the positioning block (4), and a first extrusion block (8) is slidably connected to the adjacent side of the two first push plates (10), and a sealing adjustment assembly is arranged on the front side of the locking plate (1).

2. A high-sealing regulating valve according to claim 1, characterized in that: The sealing adjustment assembly comprises a valve body (5), the valve body (5) is slidably connected to the top front side of the locking plate (1), the left side of the valve body (5) is threadedly connected to a sealing head (6), and the inner wall of the sealing head (6) is provided with a rubber ring.

3. A high-sealing regulating valve according to claim 1, characterized in that: The first extrusion block (8) is fixedly connected to the rear side of the valve body (5).

4. A highly sealing regulating valve according to claim 1, characterized in that: The output end of the third damper (18) is fixedly connected to both sides of the mounting block (7), and one side of the spring (11) is arranged on a side close to the two mounting blocks (7).

5. The high-sealing regulating valve according to claim 1, characterized in that: The second extrusion block (15) is slidably connected to the adjacent side of the two second push plates (16).

6. A highly sealing regulating valve according to claim 1, characterized in that: One side of the second damper (17) is rotatably connected to the side away from the inner wall of the mounting block (7).

7. A highly sealing regulating valve according to claim 1, characterized in that: The first extrusion block (8) is slidably connected to the output end of the first damper (9).

8. The high-sealing regulating valve according to claim 1, characterized in that: The displacement plate (13) is slidably connected to both sides of the inner wall of the mounting block (7).

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