Bidirectional wear-free hard sealing ball valve

Abstract

The utility model relates to the technical field of ball valves, in particular to a two-way abrasion-free hard sealing ball valve which comprises a mounting seat, a ball valve body and a pipeline. The two ends of the ball valve body are connected with the ends of two pipelines respectively, the two installation seats are provided with fixing assemblies, the corresponding fixing assemblies on the two installation seats are connected with each other, and the fixing assemblies are clamped on the outer surface of the ball valve body. Two clamping rods are slidably arranged on each mounting seat, the two clamping rods are symmetrically distributed on the mounting seat, an adjusting assembly used for adjusting the movement of the two clamping rods is arranged on the mounting seat, and the two clamping rods clamp the two pipelines. According to the utility model, the two fixing assemblies are arranged on the mounting seats, the fixing assemblies of the two mounting seats are mutually connected and clamped on the surface of the ball valve body, the clamping rods are arranged on the mounting seats, and the clamping rods are clamped on the pipelines on the two sides, so that the connection between the pipelines and the ball valve body is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a bidirectional wear-free hard-sealed ball valve. Background Art

[0002] A hard-seal ball valve is one with a metal-to-metal sealing pair. Ball valves come in various structural styles: floating ball, bidirectional wear-free, and fixed ball. Connections include flanges, welding, and threads. Existing bidirectional wear-free hard-seal ball valves are typically suspended between two pipes after being connected to them using connecting flanges and locating bolts.

[0003] The Chinese patent with authorization announcement number CN218408702U discloses a two-way wear-free hard-sealed ball valve, including a mounting seat; a groove is provided on the mounting seat, and the ball valve body is mounted on the groove through a rotation of a drive rod, and connecting rings are fixedly mounted at both ends of the ball valve body, and a transmission seat is fixedly mounted on the bottom of the connecting ring; through the setting of the adjustment mechanism, it is convenient to adjust the angle of the ball valve body and perform fine-tuning in conjunction with the mounting seat, that is, rotate the drive sleeve, the drive sleeve rotates, so that the drive sleeve moves on the screw rod, and then the screw rod pulls the connecting ring to move, and then the connecting ring drives the ball valve body to perform fine-tuning, and the drive sleeve will also move during the rotation of the drive sleeve, and the drive rod will rotate through the rotating seat, which is convenient for coordinating the rotation of the screw rod and the drive sleeve, so that the ball valve body drives the connecting ring to adjust the connection with the pipeline, thereby ensuring the sealing between the two.

[0004] However, the above technical solution has the following defects: the ball valve body is fixed in the above-mentioned two-way wear-free hard-sealed ball valve. When encountering violent liquid flow, the ball valve body and the pipeline vibrate, the connection between the pipeline and the ball valve body is affected, and the sealing between the two is reduced. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and proposes a bidirectional wear-free hard-sealed ball valve.

[0006] The technical solution of the utility model is: a bidirectional wear-free hard-sealed ball valve, comprising a mounting seat, a ball valve body and a pipeline;

[0007] The two ends of the ball valve body are respectively connected to the ends of two pipes. There are two mounting seats, and both mounting seats are provided with fixing components. The fixing components are distributed side by side on the mounting seats. The corresponding fixing components on the two mounting seats are connected to each other, and the fixing components are clamped on the outer surface of the ball valve body.

[0008] Two clamping rods are slidably provided on the mounting seat, and the two clamping rods are symmetrically distributed on the mounting seat. The mounting seat is provided with an adjustment component for adjusting the movement of the two clamping rods, and the two clamping rods clamp the ends of the two pipes.

[0009] Preferably, the fixing assembly includes a pressing plate and a connecting portion;

[0010] The connecting portion is connected to the surface of the pressing plate, the connecting portion is connected to the surface of the mounting seat, and the pressing plate is an arc-shaped plate.

[0011] Preferably, a gasket a is provided on the surface of the pressure plate close to the ball valve body, and the gasket a is an elastic structure.

[0012] Preferably, it also includes nuts and bolts;

[0013] The fixing components of the two mounting seats are connected to each other, and through holes are provided at both ends of the pressure plate. There are multiple bolts and nuts. The bolts pass through the corresponding through holes and are connected with the nut threads. The ends of the bolts and the nuts are pressed tightly on the surfaces of the two pressure plates.

[0014] Preferably, the adjustment assembly includes a fixing block, a connecting rod, a mounting block and a screw rod;

[0015] The screw is rotatably connected to the surface of the mounting seat, the end of the screw is provided with a knob, the fixing block is provided with two clamping rods respectively connected to one mounting seat, the mounting block is provided with a screw nut, and the screw nut is matched with the screw thread;

[0016] There are two connecting rods, one end of the connecting rod is rotatably connected to the two ends of the mounting block, the two connecting rods are symmetrically distributed on the mounting block, and the other ends of the two connecting rods are rotatably connected to the fixing blocks on the two clamping rods.

[0017] Preferably, the mounting seat is provided with two slide grooves, which are symmetrically distributed on the mounting seat, and the two clamping rods are slidably connected to the two slide grooves respectively;

[0018] Springs are arranged in the slide grooves, and the springs are respectively connected to the ends of the two clamping rods.

[0019] Preferably, the projection shape of the clamping rod is L-shaped, and a gasket b is provided on the surface of the clamping rod, and the gasket b is an elastic structure.

[0020] Preferably, the pipeline is connected to the ball valve body through a flange, and the clamping rod is clamped on the flange surfaces of the two pipelines respectively.

[0021] Compared with the prior art, the above technical solution of the present invention has the following beneficial technical effects:

[0022] 1. In the utility model, the screw rotates, and the screw nut on the mounting block drives the mounting block to move along the screw axis. When the mounting block moves away from the mounting seat, the two connecting rods drive the fixed block and the corresponding clamping rod to move. The two clamping rods move closer to each other to clamp the flange surfaces of the two pipes.

[0023] 2. The pressure plate in the fixing assembly of the present invention is an arc-shaped plate. Two fixing assemblies are provided on one mounting seat. The four fixing assemblies are connected in pairs to fix the device on the ball valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional diagram of the bidirectional wear-free hard-sealed ball valve proposed by the utility model in use.

[0025] Figure 2 This is a structural schematic diagram of a bidirectional wear-free hard-sealed ball valve proposed by the utility model.

[0026] Figure 3 This is a structural diagram of an adjustment component in an embodiment of the present invention.

[0027] Figure numerals: 1. Mounting seat; 2. Clamping rod; 3. Fixing block; 4. Connecting rod; 5. Mounting block; 6. Pressure plate; 7. Connecting part; 8. Gasket a; 9. Nut; 10. Gasket b; 11. Ball valve body; 12. Bolt; 13. Pipe; 14. Screw; 15. Knob; 16. Screw nut; 17. Spring. DETAILED DESCRIPTION

[0028] Example 1

[0029] like Figure 1-Figure 3 As shown, the utility model proposes a bidirectional wear-free hard-sealed ball valve, comprising a mounting seat 1, a ball valve body 11 and a pipe 13;

[0030] The two ends of the ball valve body 11 are respectively connected to the ends of the two pipes 13. There are two mounting seats 1, and both mounting seats 1 are provided with fixing components. The fixing components are distributed side by side on the mounting seats 1. The corresponding fixing components on the two mounting seats 1 are connected to each other, and the fixing components are clamped on the outer surface of the ball valve body 11.

[0031] Furthermore, two sliding grooves are provided on the mounting base 1, and the sliding grooves are symmetrically distributed on the mounting base 1. The two clamping rods 2 are slidably connected to the two sliding grooves respectively. Springs 17 are provided in the sliding grooves, and the springs 17 are respectively connected to the ends of the two clamping rods 2; the projection shape of the clamping rod 2 is L-shaped, and a gasket b10 is provided on the surface of the clamping rod 2, and the gasket b10 is an elastic structure.

[0032] Two clamping rods 2 are slidably provided on the mounting base 1 , and the two clamping rods 2 are symmetrically distributed on the mounting base 1 . The mounting base 1 is provided with an adjustment component for adjusting the movement of the two clamping rods 2 , and the two clamping rods 2 clamp the ends of the two pipes 13 .

[0033] Furthermore, the pipe 13 is connected to the ball valve body 11 via a flange, and the clamping rod 2 is clamped on the flange surfaces of the two pipes 13 respectively.

[0034] In the present invention, two fixing components are provided on the mounting seat 1, and the fixing components of the two mounting seats 1 are connected to each other and clamped on the surface of the ball valve body 11. A clamping rod 2 is provided on each mounting seat 1, and the clamping rod 2 is clamped on the pipes 13 on both sides, so that the connection between the pipes 13 and the ball valve body 11 is more stable.

[0035] Example 2

[0036] like Figure 2-Figure 3 As shown, the present invention proposes a bidirectional wear-free hard-sealed ball valve. Compared with the first embodiment, the fixing assembly in this embodiment includes a pressing plate 6, a connecting portion 7, a nut 9 and a bolt 12;

[0037] The connecting portion 7 is connected to the surface of the pressing plate 6 , which is also connected to the surface of the mounting seat 1 . The pressing plate 6 is an arc-shaped plate.

[0038] Furthermore, a gasket a8 is provided on the surface of the pressure plate 6 close to the ball valve body 11, and the gasket a8 is an elastic structure.

[0039] The fixing components of the two mounting bases 1 are connected to each other, and through holes are provided at both ends of the pressure plate 6. There are multiple bolts 12 and nuts 9. The bolts 12 pass through the corresponding through holes and are threadedly connected to the nuts 9. The ends of the bolts 12 and the nuts 9 are pressed tightly on the surfaces of the two pressure plates 6.

[0040] In this embodiment, the pressure plate 6 in the fixing assembly is an arc-shaped plate. Two fixing assemblies are provided on each mounting seat 1. The device can be fixed on the ball valve body 11 by connecting the four fixing assemblies in pairs.

[0041] Example 3

[0042] like Figure 1-Figure 2 As shown, the present invention proposes a bidirectional wear-free hard-sealed ball valve. Compared with the first embodiment, the regulating assembly in this embodiment includes a fixing block 3, a connecting rod 4, a mounting block 5 and a screw rod 14;

[0043] The screw rod 14 is rotatably connected to the surface of the mounting base 1. The end of the screw rod 14 is provided with a knob 15. The fixing block 3 is provided with two clamping rods 2 respectively connected to one mounting base 1. The mounting block 5 is provided with a screw nut 16. The screw nut 16 is threadedly connected to the screw rod 14.

[0044] There are two connecting rods 4, one end of the connecting rod 4 is rotatably connected to the two ends of the mounting block 5, the two connecting rods 4 are symmetrically distributed on the mounting block 5, and the other ends of the two connecting rods 4 are rotatably connected to the fixing blocks 3 on the two clamping rods 2 respectively.

[0045] In this embodiment, when in use, the rotating knob 15 drives the screw 14 to rotate, and the screw nut 16 on the mounting block 5 drives the mounting block 5 to move along the axis of the screw 14. When the mounting block 5 is away from the mounting seat 1, the two connecting rods 4 drive the fixed block 3 and the corresponding clamping rod 2 to move, and the two clamping rods 2 approach each other to clamp the flange surfaces of the two pipes 13.

[0046] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A two-way wear-free hard-sealed ball valve, characterized in that: It comprises a mounting seat (1), a ball valve body (11) and a pipeline (13); The two ends of the ball valve body (11) are respectively connected to the ends of the two pipes (13), two mounting seats (1) are provided, and the two mounting seats (1) are each provided with a fixing assembly, the fixing assemblies are distributed side by side on the mounting seats (1), the corresponding fixing assemblies on the two mounting seats (1) are connected to each other, and the fixing assemblies are clamped on the outer surface of the ball valve body (11); Two clamping rods (2) are slidably provided on the mounting seat (1), and the two clamping rods (2) are symmetrically distributed on the mounting seat (1). An adjustment component for adjusting the movement of the two clamping rods (2) is provided on the mounting seat (1), and the two clamping rods (2) clamp the ends of the two pipes (13).

2. A bidirectional wear-free hard-sealed ball valve according to claim 1, characterized in that: The fixing assembly includes a pressing plate (6) and a connecting portion (7); The connecting portion (7) is connected to the surface of the pressing plate (6), and the connecting portion (7) is connected to the surface of the mounting seat (1), and the pressing plate (6) is an arc-shaped plate.

3. A bidirectional wear-free hard-sealed ball valve according to claim 2, characterized in that: A gasket a (8) is provided on the surface of the pressure plate (6) close to the ball valve body (11), and the gasket a (8) is an elastic structure.

4. A bidirectional wear-free hard-sealed ball valve according to claim 2, characterized in that: Also includes a nut (9) and a bolt (12); The fixing components of the two mounting seats (1) are connected to each other, through holes are provided at both ends of the pressure plate (6), and multiple bolts (12) and nuts (9) are provided. The bolts (12) pass through the corresponding through holes and are threadedly connected to the nuts (9). The ends of the bolts (12) and the nuts (9) are pressed tightly against the surfaces of the two pressure plates (6).

5. A bidirectional wear-free hard-sealed ball valve according to claim 1, characterized in that: The adjustment assembly includes a fixed block (3), a connecting rod (4), a mounting block (5) and a screw rod (14); The screw rod (14) is rotatably connected to the surface of the mounting seat (1), and a knob (15) is provided at the end of the screw rod (14). The fixing block (3) is provided with two clamping rods (2) respectively connected to one mounting seat (1). The mounting block (5) is provided with a screw rod nut (16), and the screw rod nut (16) is threadedly connected to the screw rod (14). Two connecting rods (4) are provided, one end of the connecting rod (4) is rotatably connected to the two ends of the mounting block (5), the two connecting rods (4) are symmetrically distributed on the mounting block (5), and the other ends of the two connecting rods (4) are rotatably connected to the fixing blocks (3) on the two clamping rods (2).

6. A bidirectional wear-free hard-sealed ball valve according to claim 1, characterized in that: The mounting seat (1) is provided with two slide grooves, which are symmetrically distributed on the mounting seat (1), and the two clamping rods (2) are respectively slidably connected to the two slide grooves; A spring (17) is provided in each of the slide grooves, and the springs (17) are respectively connected to the ends of the two clamping rods (2).

7. A bidirectional wear-free hard-sealed ball valve according to claim 1, characterized in that: The projection shape of the clamping rod (2) is L-shaped, and a gasket b (10) is provided on the surface of the clamping rod (2), and the gasket b (10) is an elastic structure.

8. A bidirectional wear-free hard-sealed ball valve according to claim 1, characterized in that: The pipeline (13) is connected to the ball valve body (11) through a flange, and the clamping rod (2) is clamped on the flange surfaces of the two pipelines (13) respectively.

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