A C-type ball valve

Abstract

The utility model relates to valve technical field discloses a C type ball valve, including valve body, the both sides fixed connection of valve body have transmission pipe, transmission pipe outer wall all fixedly connected with flange no.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a C-type ball valve. Background Technology

[0002] C-type ball valves are important regulating and shut-off devices in industrial pipeline systems. Due to their compact structure, low flow resistance, and good sealing performance, they are widely used in various industrial fields such as petrochemicals, natural gas, water treatment, power generation, and papermaking. They achieve precise regulation or rapid on / off control of the flow rate of fluid media in pipelines by rotating a ball with a C-shaped through-hole. The upper part of the valve is usually connected to a manual operating mechanism such as a handwheel or worm gear box, or a pneumatic or electric actuator to drive the rotation of the valve stem and ball. Therefore, the reliability and convenience of the connection between the drive mechanism and the valve body are crucial to the overall performance and maintainability of the valve.

[0003] In existing technologies, a standardized multi-bolt flange connection is commonly used between the drive mechanism (or connecting flange) and the mounting flange on the upper part of the valve body. The specific connection process is as follows: First, align the output shaft of the drive mechanism with the valve stem; then align the two flanges and place a sealing gasket between them; subsequently, maintenance personnel need to pass multiple connecting bolts sequentially through the pre-drilled bolt holes on the two flanges and slip nuts on from the other side; finally, using tools such as wrenches, tighten all bolts one by one in a diagonal or crisscross sequence until finally tightened to the specified torque, thereby achieving a secure and sealed connection through strong clamping force. The technical principle relies on the axial tensile force generated by multiple bolts to tightly press the two flanges together.

[0004] However, the inherent defects of this traditional multi-bolt flange connection method become apparent when valves need to be disassembled for maintenance, repair, or replacement. The entire disassembly and assembly process is extremely cumbersome. Maintenance personnel must use tools to loosen and remove each bolt and nut one by one, a time-consuming and laborious process, and then repeat the same tedious tightening steps during installation. When valves are installed in confined spaces such as pipe racks, densely populated equipment areas, or high-altitude platforms, the operating space is limited, the use of tools is extremely inconvenient, and the difficulty and labor intensity of disassembly and assembly increase dramatically. There is also the risk of small parts such as bolts falling off. This inefficient disassembly and assembly method directly leads to extended equipment maintenance cycles and increased pipeline downtime, seriously affecting production efficiency and failing to meet the high requirements of modern industry for rapid maintenance and reduced downtime losses. Therefore, a C-type ball valve is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a C-type ball valve, aiming to improve the drawbacks of traditional multi-bolt flange connections, which involve cumbersome disassembly and assembly during valve maintenance, especially in complex working conditions such as narrow spaces or high altitudes, where operation is difficult, time-consuming, and labor-intensive, with the risk of parts falling. This inefficient maintenance method results in long equipment downtime, failing to meet the requirements of modern industry for rapid maintenance and reduced production losses.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A C-type ball valve, comprising a valve body, transmission pipes fixedly connected to both sides of the valve body, flange one fixedly connected to the outer wall of each transmission pipe, flange two fixedly connected to the upper surface of the valve body, flange three disposed directly above flange two, a quick-release assembly installed on the lower surface of flange three, an adjusting rod rotatably connected inside flange three, and a handwheel fixedly connected to the upper end of the adjusting rod.

[0007] The quick-release assembly includes a telescopic rod, the lower end of which is fixedly connected to the upper surface of flange two. A spring one is sleeved on the outer wall of the telescopic rod. A sealing cylinder is fixedly connected to the lower surface of flange three. The lower surface of the sealing cylinder abuts against the inside of flange two. An installation rod is fixedly connected to the lower surface of flange three. A symmetrical sliding plate is slidably connected inside the installation rod. A locking block is fixedly connected to the outer wall of each of the two sliding plates. A spring two is fixedly connected between the two sliding plates.

[0008] As a further description of the above technical solution:

[0009] A rubber block is fixedly connected to the lower surface of the valve body, and a support plate is provided on the lower surface of the rubber block.

[0010] As a further description of the above technical solution:

[0011] An installation block is fixedly connected to the outer wall of the support plate, and an installation bolt is provided inside the installation block.

[0012] As a further description of the above technical solution:

[0013] The upper surface of the support plate is fixedly connected with symmetrical fixing blocks, and a limit rod is fixedly connected between the two fixing blocks.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the limiting rod is slidably connected to a symmetrical sliding sleeve, and a bracket is fixedly connected to the upper surface of the sliding sleeve.

[0016] As a further description of the above technical solution:

[0017] An arc-shaped plate is fixedly connected to the upper surface of the bracket, and the inner walls of the two arc-shaped plates abut against the outer wall of the transmission pipe.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the limiting rod is fitted with a plurality of springs, which are arranged between the sliding sleeves.

[0020] As a further description of the above technical solution:

[0021] The upper end of the spring abuts against the lower surface of the flange, and the upper end of the telescopic rod abuts against the lower surface of the flange.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, a quick-release assembly is installed between flange three and flange two. Specifically, a spring two inside the mounting rod pushes two sliding plates, causing the locking block on the outer wall of the sliding plate to quickly lock and unlock with the telescopic rod or corresponding structure on flange two. This achieves rapid separation and installation of the upper drive mechanism and the valve body. This solves the problem of traditional flange connections requiring tools to individually remove and install multiple bolts, a cumbersome, time-consuming, and labor-intensive process, especially inconvenient for maintenance at heights or in confined spaces, thus improving the efficiency of valve installation and maintenance.

[0024] 2. In this utility model, by setting a rubber block below the valve body and cooperating with an adaptive support device consisting of a limit rod, a sliding sleeve and a spring, the arc plate on the bracket forms a stable elastic clamp on the outer wall of the transmission pipe, thereby achieving double vibration reduction support for the entire valve group. This effectively solves the problem that the pipeline vibrates due to fluid pulsation or external environment, and the stress is directly transmitted to the valve body, causing its sealing structure to wear faster or even fail. This improves the valve's adaptability to pipeline installation errors. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of a C-type ball valve proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the support plate structure of a C-type ball valve proposed in this utility model;

[0027] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0028] Figure 4 This is a schematic diagram of the support structure of a C-type ball valve proposed in this utility model.

[0029] Legend:

[0030] 1. Valve body; 2. Transmission pipe; 3. Flange 1; 4. Flange 2; 5. Flange 3; 6. Telescopic rod; 7. Spring 1; 8. Mounting rod; 9. Sliding plate; 10. Locking block; 11. Spring 2; 12. Sealing cylinder; 13. Adjusting rod; 14. Handwheel; 15. Rubber block; 16. Support plate; 17. Mounting block; 18. Mounting bolt; 19. Fixing block; 20. Limiting rod; 21. Sliding sleeve; 22. Bracket; 23. Arc plate; 24. Spring 3. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 - Figure 4 This utility model provides an embodiment of a C-type ball valve, including a valve body 1. The valve body 1 is the core component that carries the valve core and forms the main fluid channel. Transmission pipes 2 are fixedly connected to both sides of the valve body 1. The transmission pipes 2 are used to connect the valve body 1 to the pipeline system. Flange 1 3 is fixedly connected to the outer wall of the valve body 1. Flange 1 3 is a standard pipeline connection interface. Flange 2 4, which serves as the lower connection interface, is fixedly connected to the upper surface of the valve body 1. Flange 3 5, which serves as the upper connection interface, is provided directly above flange 2 4. A quick-release assembly is installed on the lower surface of flange 3 5 to achieve quick connection and separation with flange 2 4. An adjusting rod 13 is rotatably connected inside flange 3 5. The adjusting rod 13 is used to transmit the operating torque to the valve core. A handwheel 14 is fixedly connected to its upper end for easy manual operation.

[0033] The quick-release assembly includes a telescopic rod 6, the lower end of which is fixedly connected to the upper surface of flange 2 4, serving as a fixed anchor point for the locking mechanism. A spring 1 7 is fitted onto its outer wall, providing continuous preload after connection. A sealing cylinder 12 is fixedly connected to the lower surface of flange 3 5. During installation, the lower surface of the sealing cylinder 12 can abut against the interior of flange 2 4, serving as initial positioning and sealing. An installation rod 8 is also fixedly connected to the lower surface of flange 3 5, acting as a housing for the locking mechanism. Symmetrical sliding plates 9 are slidably connected inside the installation rod 8. Locking blocks 10 are fixedly connected to the outer walls of both sliding plates 9. A spring 2 11 is fixedly connected between the two sliding plates 9, pushing them outwards to a normally closed locked state. The upper end of spring 1 7 abuts against the lower surface of flange 3 5, and the upper end of the telescopic rod 6 also abuts against the lower surface of flange 3 5 during installation.

[0034] Specifically, during installation, the operator presses the two sliding plates 9 inward, causing them to retract against the elastic force of spring 11. Flange 5 is then aligned with flange 4 and pressed down. Once the telescopic rod 6 is in the corresponding position, the sliding plates 9 are released. Spring 11 then pushes the locking block 10 outward, automatically ejecting it and locking the telescopic rod 6, thus completing the locking process. The entire process requires no bolts or other fasteners, making operation extremely convenient. Simultaneously, spring 7 provides continuous axial preload, ensuring the tightness and reliability of the connection, while the sealing cylinder 12 guarantees the sealing performance of the interface. This design significantly improves the efficiency of valve installation and on-site maintenance.

[0035] Reference Figure 1 - Figure 4 A rubber block 15 is fixedly connected to the lower surface of the valve body 1, serving as a first-stage vibration damping element. A support plate 16, which acts as the base of the entire support structure, is installed on the lower surface of the support plate 16. An installation block 17 is fixedly connected to the outer wall of the support plate 16, and an installation bolt 18 is installed inside the installation block 17 to firmly fix the entire support device to the ground or foundation. A left-right symmetrical fixing block 19 is fixedly connected to the upper surface of the support plate 16, and a limiting rod 20, which serves as a guide rail, is firmly connected between the two fixing blocks 19. A left-right symmetrical sliding sleeve 21 is slidably connected to the outer wall of the limiting rod 20, and a bracket 22 is fixedly connected to the upper surface of the sliding sleeve 21. An arc plate 23 is fixedly connected to the upper surface of the bracket 22. The inner walls of the two arc plates 23 are designed to match the arc surface of the outer wall of the transmission pipe 2 and abut against it to form a clamping support. A plurality of springs 24, which serve as elastic elements, are sleeved on the outer wall of the limiting rod 20, and the plurality of springs 24 are arranged between the two sliding sleeves 21.

[0036] Specifically, during valve installation, the valve body 1 contacts the support plate 16 via rubber block 15, achieving vertical vibration isolation. Simultaneously, spring 24, located between the two sliding sleeves 21, generates a continuous outward thrust. This thrust acts on both sliding sleeves 21 and is transmitted to the arc-shaped plate 23 via bracket 22, ensuring that the two arc-shaped plates 23 can always elastically and adaptively clamp and support the transmission pipes 2 on both sides. This structure not only provides stable lateral support for the pipeline system but also effectively absorbs and buffers lateral vibrations caused by fluid pulsation or external environmental factors, preventing direct stress transmission and concentration on the valve body 1. This protects the valve's internal sealing structure and significantly improves the operational stability and service life of the entire valve assembly.

[0037] Working Principle: When using this C-type ball valve, the support plate 16 is first fixed to the ground or foundation using the mounting bolts 18 within the mounting block 17. The valve body 1 and the transmission pipes 2 on both sides are placed on it. The valve body 1 contacts the support plate 16 through rubber blocks 15 on its lower surface, which effectively absorb and buffer initial vibrations from the pipeline or environment. Simultaneously, the adaptive support mechanism located on the support plate 16 begins to operate: multiple springs 24 are sleeved on the outer wall of the limiting rod 20 between the two fixed blocks 19. These springs push the two symmetrical sliding sleeves 21 to move towards each other, thereby ensuring that the arc-shaped plate 23 fixed above the sliding sleeves 21 always elastically abuts against and clamps the outer wall of the transmission pipe 2. This structure provides continuous and stable elastic support for the pipeline, effectively absorbing vibrations caused by fluid pulsation and preventing stress concentration on the valve body 1.

[0038] When installing the upper drive mechanism, align the component with flange 3 5 with flange 2 4 above the valve body 1. The operator presses the two sliding plates 9 exposed in the mounting rod 8 inward, overcoming the elasticity of spring 2 11, causing the locking block 10 to retract inward. Then, press down flange 3 5, so that the sealing cylinder 12 on its lower surface fits tightly with the inside of flange 2 4 to form a seal, while allowing the telescopic rod 6 on flange 2 4 to fully enter the corresponding hole of flange 3 5. At this time, release the sliding plate 9, spring 2 11 returns to its deformation, pushing the sliding plate 9 and locking block 10 outward, and the locking block 10 will lock into the groove or lower edge of the telescopic rod 6, achieving quick locking. During installation, spring 1 7 on the outer wall of the telescopic rod 6 is compressed, providing continuous preload to the two flanges, ensuring a tight and wobbly connection. When maintenance and disassembly are required, simply press the sliding plate 9 inward again to quickly unlock and remove the upper component. In daily operation, the valve core can be opened and closed and the pipeline fluid regulated by rotating the handwheel 14 to drive the adjusting rod 13.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A C-type ball valve, characterized by The valve body includes a valve body (1), on both sides of which a transmission pipe (2) is fixedly connected. A flange (3) is fixedly connected to the outer wall of each transmission pipe (2). A flange (4) is fixedly connected to the upper surface of the valve body (1). A flange (5) is positioned directly above the flange (4). A quick-release assembly is installed on the lower surface of the flange (5). An adjusting rod (13) is rotatably connected inside the flange (5). A handwheel (14) is fixedly connected to the upper end of the adjusting rod (13). The quick-release assembly includes a telescopic rod (6), the lower end of which is fixedly connected to the upper surface of flange two (4). A spring one (7) is sleeved on the outer wall of the telescopic rod (6). A sealing cylinder (12) is fixedly connected to the lower surface of flange three (5). The lower surface of the sealing cylinder (12) abuts against the inside of flange two (4). An installation rod (8) is fixedly connected to the lower surface of flange three (5). A sliding plate (9) with left and right symmetry is slidably connected inside the installation rod (8). A locking block (10) is fixedly connected to the outer wall of each of the two sliding plates (9). A spring two (11) is fixedly connected between the two sliding plates (9).

2. A C-type ball valve according to claim 1, characterized in that: A rubber block (15) is fixedly connected to the lower surface of the valve body (1), and a support plate (16) is provided on the lower surface of the rubber block (15).

3. A C-type ball valve according to claim 2, characterized in that: The support plate (16) is fixedly connected to the outer wall of the mounting block (17), and the mounting block (17) is provided with mounting bolts (18).

4. A C-type ball valve according to claim 3, characterized in that: The upper surface of the support plate (16) is fixedly connected with symmetrical fixing blocks (19), and a limit rod (20) is fixedly connected between the two fixing blocks (19).

5. A C-type ball valve according to claim 4, characterized in that: The outer wall of the limiting rod (20) is slidably connected to a left-right symmetrical sliding sleeve (21), and a bracket (22) is fixedly connected to the upper surface of the sliding sleeve (21).

6. A C-type ball valve according to claim 5, characterized in that: An arc-shaped plate (23) is fixedly connected to the upper surface of the bracket (22), and the inner walls of the two arc-shaped plates (23) abut against the outer wall of the transmission pipe (2).

7. A C-type ball valve according to claim 6, characterized in that: The outer wall of the limiting rod (20) is fitted with a plurality of springs (24), and the plurality of springs (24) are arranged between the sliding sleeves (21).

8. A C-type ball valve according to claim 1, characterized in that: The upper end of the spring (7) abuts against the lower surface of the flange (5), and the upper end of the telescopic rod (6) abuts against the lower surface of the flange (5).

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