Quick butt flange structure of butterfly valve based on oil exploitation

Abstract

The utility model discloses a quick butt flange structure for a butterfly valve based on oil exploitation, which relates to the field of butterfly valves, and is characterized by comprising a pipeline flange plate and a butterfly valve flange plate, the pipeline flange plate and the butterfly valve flange plate are oppositely arranged, and a plurality of clamping grooves are uniformly formed in the surface of the pipeline flange plate along the circumferential direction. A plurality of clamping blocks matched with the clamping grooves and extruded into the clamping grooves through elastic assemblies are evenly arranged on the surface of the butterfly valve flange plate in the circumferential direction, and the butterfly valve flange plate has the advantages that the clamping blocks are tightly clamped in the clamping grooves through the elastic force of the elastic assemblies, installation operation is simplified, manpower and time cost is greatly reduced, and the butterfly valve flange plate is simple in structure and convenient to use. The device is especially suitable for severe environment and complex equipment layout of an oil exploitation site.

Description

Technical Field

[0001] This utility model relates to the field of butterfly valves, and more specifically, to a quick-connect flange structure for butterfly valves based on oil extraction. Background Technology

[0002] Butterfly valves are indispensable key equipment in oil extraction, primarily used to control and regulate the flow rate, direction, and pressure of fluids such as oil and natural gas. They use a disc-shaped butterfly plate as the opening and closing element, rotating around the valve stem to achieve valve opening and closing and flow regulation. The harsh environment of oil extraction presents challenges such as high temperature, high pressure, and high corrosiveness, requiring butterfly valves to possess high strength, corrosion resistance, and strong sealing properties. Installed in oil pipelines, wellhead equipment, and other locations, butterfly valves can quickly cut off or open fluid passages, rapidly shutting off media flow in emergencies to prevent leaks and ensure the safe, stable, and efficient operation of oil extraction.

[0003] Traditional butterfly valves are primarily connected to flanges using bolts. During installation, this requires tightening each bolt individually, a cumbersome process that consumes significant manpower and time. This is especially true at oil extraction sites, where harsh working environments further increase the difficulty and time required for installation. For instance, in cold oilfield environments, workers' hand dexterity decreases, making bolt tightening even more difficult and significantly reducing installation efficiency.

[0004] Therefore, in order to solve the above-mentioned technical problems, this application proposes a quick-connect flange structure for butterfly valves based on oil extraction. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a quick-connect flange structure for butterfly valves based on oil extraction.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-connect flange structure for a butterfly valve based on oil extraction, comprising a pipe flange and a butterfly valve flange, wherein the pipe flange and the butterfly valve flange are arranged opposite to each other, and a plurality of slots are uniformly arranged along the circumferential direction on the surface of the pipe flange, and a plurality of blocks that match the slots are uniformly arranged along the circumferential direction on the surface of the butterfly valve flange and are pressed into the slots by an elastic component.

[0007] Preferably, the elastic component includes an N-shaped plate fixed to the back of the butterfly valve flange. The head of the N-shaped plate is fixedly connected to a connecting groove seat, and the interior of the connecting groove seat is connected to a locking block by a spring. Guide rails A are fixedly connected to both sides of the interior of the N-shaped plate, and sliders A are slidably connected to each guide rail A. The surface of the sliders A is connected to the locking block by a connecting rod A.

[0008] Preferably, each of the connecting slots has an adjustable inner plate inside, the spring is fixed to the surface of the inner plate, and both sides of the inner plate are slidably connected to the guide rail A by sliders B.

[0009] Preferably, the bottom of the connecting slot is provided with a through slot, the bottom end of the inner plate is connected to the moving block through the connecting rod B, the bottom end of the connecting slot is provided with a plurality of screw holes arranged in a horizontal array on both sides of the through slot, the surface of the moving block is provided with through holes on both sides, and screws are installed inside the screw holes.

[0010] Preferably, a guide rail B is fixedly connected to the surface of the movable block next to the through hole, and a slider C is slidably connected to the surface of the guide rail B. A bearing is fixedly connected to the surface of the slider C, and a screw rod is fixedly connected to the inner ring of the bearing. A handle is fixedly connected to the top of the screw rod.

[0011] Preferably, a sealing ring is provided between the pipe flange and the butterfly valve flange.

[0012] Preferably, a pull rod is fixedly connected to the center of the back of the card block, and a circular through slot is provided on both the connecting slot seat and the inner plate for the pull rod to pass through.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model arranges a pipe flange and a butterfly valve flange opposite each other, so that the slots evenly distributed along the circumference of the pipe flange surface correspond to the positions of the locking blocks evenly distributed along the circumference of the butterfly valve flange surface. As the two approach each other, the locking blocks on the butterfly valve flange can smoothly and quickly embed into the slots of the pipe flange under the squeezing action of the elastic component, thereby realizing the rapid docking of the pipe flange and the butterfly valve flange. This connection method does not require tightening the bolts one by one as in traditional bolted connections. It uses the elastic force of the elastic component to tightly engage the locking blocks in the slots, simplifying the installation operation and significantly reducing labor and time costs. It is especially suitable for harsh environments in oil extraction sites, effectively solving the problems of difficult operation and low installation efficiency of traditional connection methods under cold and other harsh conditions.

[0015] 2. This utility model removes the screw rod from the screw hole, so that the screw rod is always connected to the connecting slot seat through the guide rail B, slider C, bearing and other components, thereby avoiding the problem of screw loss;

[0016] 3. This utility model allows the locking block to be pulled directly towards the connecting slot via a pull rod, making operation more convenient. At the same time, the design of the pull rod passing through the inner plate and the connecting slot makes full use of the internal space of the elastic component, making the entire structure more compact and reducing the occupation of external space. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

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

[0019] Figure 2 This utility model Figure 1 Another perspective on the specific structure;

[0020] Figure 3 This is a schematic diagram of the specific structure of the butterfly valve flange in this utility model;

[0021] Figure 4 This is a schematic diagram of the specific structure of the elastic component in this utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the connecting slot in this utility model (excluding the back plate of the connecting slot and the top plate of the pull rod head).

[0023] In the diagram: 1. Pipe flange; 2. Butterfly valve flange; 3. Slot; 4. Block; 5. Elastic component; 501. N-shaped plate; 502. Connecting slot seat; 503. Guide rail A; 504. Slider A; 505. Connecting rod A; 506. Inner plate; 507. Square through slot; 508. Connecting rod B; 509. Moving block; 510. Screw hole; 511. Through hole; 512. Spring; 513. Slider B; 6. Guide rail B; 7. Slider C; 8. Bearing; 9. Screw rod; 10. Handle; 11. Pull rod; 12. Circular through slot. Detailed Implementation

[0024] like Figure 1-5 As shown, this utility model provides a quick-connect flange structure for a butterfly valve based on oil extraction, including a pipe flange 1 (a flange installed on a pipe) and a butterfly valve flange 2 (a flange installed on a butterfly valve). The pipe flange 1 and the butterfly valve flange 2 are arranged opposite to each other. Multiple slots 3 are evenly arranged along the circumferential direction on the surface of the pipe flange 1. Multiple locking blocks 4 that match the slots 3 are evenly arranged along the circumferential direction on the surface of the butterfly valve flange 2 and are pressed into the slots 3 by an elastic component 5.

[0025] When installing this quick-connect flange structure for the butterfly valve, the pipe flange 1 and the butterfly valve flange 2 are positioned opposite each other, so that the grooves 3 evenly distributed along the circumference of the pipe flange 1 correspond to the positions of the locking blocks 4 evenly distributed along the circumference of the butterfly valve flange 2. As they approach each other, the locking blocks 4 on the butterfly valve flange 2, under the compression of the elastic component 5, can smoothly and quickly embed into the grooves 3 of the pipe flange 1, thereby achieving quick connection between the pipe flange 1 and the butterfly valve flange 2. This connection method eliminates the need to tighten bolts one by one as in traditional bolted connections. The elastic force of the elastic component 5 tightly engages the locking blocks 4 within the grooves 3, simplifying the installation operation and significantly reducing labor and time costs. It is particularly suitable for harsh environments and complex equipment layouts in oil extraction sites.

[0026] The elastic component 5 includes an N-shaped plate 501 fixed to the back of the butterfly valve flange 2. The head of the N-shaped plate 501 is fixedly connected to a connecting groove seat 502, and the interior of the connecting groove seat 502 is connected to the locking block 4 through a spring 512. Guide rails A503 are fixedly connected to both sides of the interior of the N-shaped plate 501. Slider A504 is slidably connected to each guide rail A503. The surface of the slider A504 is connected to the locking block 4 through a connecting rod A505. A sealing ring is provided between the butterfly valve flange 2 and the pipe flange 1.

[0027] When connecting pipe flange 1 and butterfly valve flange 2, first move the locking block 4 towards the connecting groove seat 502. The locking block 4 drives the slider A504 to move via the connecting rod A505. The slider A504 slides along the guide rail A503 to maintain the linear movement of the locking block 4, while simultaneously compressing the spring 512 to leave space for the insertion of the pipe flange 1. Then, slide the pipe flange 1 into the area between the two N-shaped plates 501 of the butterfly valve flange 2 (the area between the two N-shaped plates 501 is large enough for the pipe flange 1 to pass through). Finally, the surface of the pipe flange 1 and the surface of the butterfly valve flange 2 are tightly attached. When the locking groove 3 on the pipe flange 1 is aligned with the locking block 4 on the butterfly valve flange 2, the compression of the locking block 4 can be released. The spring 512 extends in the opposite direction to reset, thereby driving the locking block 4 to reset and insert it into the locking groove 3, thus completing the connection between the pipe flange 1 and the butterfly valve flange 2. The sealing ring seals both of them.

[0028] Furthermore, each connecting slot 502 is equipped with an adjustable inner plate 506. The spring 512 is fixed to the surface of the inner plate 506. Both sides of the inner plate 506 are slidably connected to the guide rail A503 via sliders B513. The adjustable inner plate 506 can adapt to the connection requirements of flanges of different specifications. By changing the position of the inner plate 506 in the connecting slot 502, the compression or initial tension of the spring 512 can be adjusted, thereby changing the elastic force when the locking block 4 is embedded in the locking groove 3. This can not only meet the connection tightness requirements under different working conditions, but also adapt to the differences in manufacturing tolerances and installation clearances between the pipe flange 1 and the butterfly valve flange 2, thereby improving the versatility and compatibility of the structure. In addition, the design provides flexibility for on-site installation. When faced with complex equipment layouts or slight deformation of flanges at oil extraction sites, the initial position of the locking block 4 can be finely adjusted by adjusting the inner plate 506 to ensure that the locking block 4 can be smoothly embedded into the slot 3 and form a tight connection. This not only enhances the sealing effect of the sealing ring, but also simplifies the installation process and improves the reliability of the connection.

[0029] The following is the specific structure of the adjustable inner plate 506: A square through slot 507 is provided at the bottom of the connecting slot 502. The bottom end of the inner plate 506 is connected to the moving block 509 through the connecting rod B508. Multiple screw holes 510 are arranged in a horizontal array on both sides of the square through slot 507 at the bottom end of the connecting slot 502. Through holes 511 are provided on both sides of the surface of the moving block 509. Screws are installed inside the screw holes 510. A guide rail B6 is fixedly connected to the surface of the moving block 509 next to the through holes 511. A slider C7 is slidably connected to the surface of the guide rail B6. A bearing 8 is fixedly connected to the surface of the slider C7. A screw rod 9 is fixedly connected to the inner ring of the bearing 8. A handle 10 is fixedly connected to the top of the screw rod 9.

[0030] This involves pushing the inner plate 506 to move relative to the connecting slot 502. The connecting slot 502 slides along the guide rail B6 via the slider C7 to maintain the linear movement of the inner plate 506. The connecting rod B508 below the inner plate 506 moves along the square through slot 507. The connecting rod B508 drives the moving block 509 to move. After the position of the inner plate 506 is adjusted, the bearing 8 on the slider C7 is pushed to move towards the moving block 509, so that the screw rod 9 on the bearing 8 passes through the through hole 511 on the moving block 509 and is aligned with the corresponding screw hole 510 on the connecting slot 502. Then, the screw rod 9 is rotated clockwise by the handle 10. When the lead screw 9 rotates, it drives the inner ring of the bearing 8 to rotate. The inner ring of the bearing 8 rotates along with its outer ring, thereby providing rotational support for the lead screw 9 through the bearing 8. Finally, the lead screw 9 is completely screwed into the screw hole 510, fixing the moving block 509 to the connecting slot seat 502, thus completing the fixation of the inner plate 506. Conversely, turning the handle 10 in the opposite direction will drive the lead screw 9 to rotate in the opposite direction, removing the lead screw 9 from the screw hole 510. In this way, the lead screw 9 is always connected to the connecting slot seat 502 through components such as the guide rail B6, slider C7, and bearing 8, thus avoiding the problem of losing the screw.

[0031] Furthermore, this utility model also provides a structure for moving the locking block 4 towards the connecting slot seat 502. A pull rod 11 is fixedly connected to the center of the back of the locking block 4. Both the connecting slot seat 502 and the inner plate 506 are provided with circular through slots 12 for the pull rod 11 to pass through. That is, the locking block 4 can be pulled directly towards the connecting slot seat 502 by the pull rod 11, which is more convenient to operate. At the same time, the design of the pull rod 11 passing through the inner plate 506 and the connecting slot seat 502 makes full use of the internal space of the elastic component 5, making the whole structure more compact and reducing the occupation of external space.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A quick butt flange structure of a butterfly valve based on oil exploitation, comprising a pipeline flange plate (1) and a butterfly valve flange plate (2), the pipeline flange plate (1) and the butterfly valve flange plate (2) are oppositely arranged, characterized in that: The surface of the pipeline flange (1) is uniformly provided with a plurality of clamping grooves (3) in the circumferential direction, and the surface of the butterfly valve flange (2) is uniformly provided with a plurality of clamping blocks (4) matched with the clamping grooves (3) and pressed into the clamping grooves (3) by elastic components (5).

2. The petroleum production based butterfly valve quick butt flange structure according to claim 1, characterized in that: The elastic component (5) includes an N-shaped plate (501) fixed on the back of the butterfly valve flange (2), the head of the N-shaped plate (501) is fixedly connected with a connecting groove seat (502), the inside of the connecting groove seat (502) is connected with the clamping block (4) through a spring (512), the inside of the N-shaped plate (501) is fixedly connected with guide rails A (503) on both sides, the guide rails A (503) are slidably connected with sliding blocks A (504), and the surface of the sliding blocks A (504) is connected with the clamping block (4) through connecting rods A (505).

3. The petroleum production based butterfly valve quick butt flange structure according to claim 2, characterized in that: The inside of the connecting groove seat (502) is provided with an inner plate (506) with adjustable position, the surface of the spring (512) is fixed on the inner plate (506), and the two sides of the inner plate (506) are slidably connected in the guide rails A (503) through sliding blocks B (513).

4. The petroleum production based butterfly valve quick butt flange structure according to claim 3, characterized in that: The bottom of the connecting groove seat (502) is provided with a square through groove (507), the bottom end of the inner plate (506) is connected with a moving block (509) through a connecting rod B (508), the bottom end of the connecting groove seat (502) is arranged with a plurality of screw holes (510) in a transverse array on both sides of the square through groove (507), the surface of the moving block (509) is provided with through holes (511) on both sides, and the inside of the screw holes (510) is mounted with screws.

5. The petroleum production based butterfly valve quick butt flange structure according to claim 4, characterized in that: The surface of the moving block (509) is fixedly connected with guide rails B (6) beside the through holes (511), the surface of the guide rails B (6) is slidably connected with sliding blocks C (7), the surface of the sliding blocks C (7) is fixedly connected with bearings (8), the inner ring part of the bearings (8) is fixedly connected with screw rod parts (9), and the top end of the screw rod parts (9) is fixedly connected with handles (10).

6. The petroleum production based butterfly valve quick butt flange structure according to claim 1, characterized in that: The pipeline flange (1) and the butterfly valve flange (2) are provided with a sealing rubber ring.

7. The petroleum production based butterfly valve quick butt flange structure according to claim 3, characterized in that: The back center part of the clamping block (4) is fixedly connected with a pull rod (11), and the connecting groove seat (502) and the inner plate (506) are both provided with circular through grooves (12) for the pull rod (11) to pass through.

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