Flange correction opening device

Abstract

The utility model discloses a kind of flange correction mouth opening devices, it is related to flange plate mouth opening tool technical field, including flange plate and the half backshaped block of being located in flange plate one side, the opposite face of two flange plates is all fixed with guide ring, half backshaped block is installed with stretch component, and half backshaped block is installed with positioning correction component;The utility model is by the cooperation of adjusting screw and top block, convenient for top block to stretch out and drive mouth opening V-shaped block to open, convenient for the position of two flange plates to open, convenient for the replacement of subsequent flange plate inner sealing ring;By the cooperation of correction screw and positioning screw, it is convenient to connect flange plate with half backshaped block, it is convenient to adjust the position of upper and lower flange plate, it is convenient to prevent two flange plates from misalignment;Through the above structure, the misalignment of two flange plates in the existing flange plate sealing ring replacement process is solved, and then lead to the problem of increasing repair time, increase production loss.

Description

Technical Field

[0001] This utility model relates to the technical field of flange opening tools, and in particular to a flange straightening and opening device. Background Technology

[0002] A flange straightening and opening device is a specialized tool used in petrochemical, pressure pipeline installation, and other fields. It uses hydraulic or mechanical means to precisely correct the misalignment and opening of the flange connection, ensuring reliable equipment sealing and safe operation. Existing flange straightening and opening devices generally use two extension blocks that are inserted into the flange after the bolts are removed to open the sides. However, this method lacks a straightening and positioning mechanism, which makes it easy for the two flanges to become misaligned during use. This makes it difficult to turn the bolts in when the two flanges are subsequently joined, requiring repositioning and increasing the repair time. Therefore, the above-mentioned problems need to be improved. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a flange straightening and opening device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a flange straightening opening device, comprising a flange and a semi-circular block disposed on one side of the flange, guide rings being fixedly connected to the opposing surfaces of the two flanges, a support assembly being installed on the semi-circular block, and a positioning and straightening assembly being installed on the semi-circular block.

[0005] Preferably, the positioning and correction assembly includes positioning screws threaded to the upper and lower ends of the other side of the semi-circular block, with the proximal ends of the positioning screws placed in the threaded holes of the two flanges.

[0006] Preferably, the other side of the semi-circular block has a threaded screw connected to both the upper and lower ends of the middle section. A support plate is vertically provided on one side of the adjustment screw, and one side of the adjustment screw is rotatably connected to the support plate. The inner side of the support plate is arc-shaped to fit the flange. The far ends of the two support plates abut against the inner wall of the semi-circular block.

[0007] Preferably, the extension assembly includes an adjusting screw threaded to the middle of one side of the semi-circular block, the front end of the adjusting screw penetrating the semi-circular block, and a top block provided on one side of the adjusting screw, the front end of the adjusting screw being rotatably connected to the top block.

[0008] Preferably, the front and rear ends of the semi-circular block are connected to vertical guide rods, and the upper and lower ends of the top block are provided with support V-shaped blocks on inclined surfaces. Both ends of the support V-shaped blocks slide on the guide rods, and the far surfaces of the support V-shaped blocks abut against the near surfaces of the two flanges respectively.

[0009] Preferably, a sealing ring is installed on the outer side of the top surface of the lower flange in conjunction with a guide ring.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, by adjusting the screw and the top block, the top block can extend to drive the V-shaped support block to open, which facilitates the opening of the two flanges and makes it easier to replace the sealing ring inside the flange. By adjusting the screw and the positioning screw, the flange and the semi-circular block can be connected, which facilitates the adjustment of the position of the upper and lower flanges and prevents the two flanges from being misaligned. The above structure solves the problem that the two flanges are prone to misalignment in the existing flange sealing ring replacement process, which leads to increased repair time and increased production losses. Attached Figure Description

[0011] 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 their description, serve to explain the present invention, but do not constitute an improper fixation of the present invention. In the drawings: Figure 1 This is a three-dimensional schematic diagram of the overall structure proposed in this utility model; Figure 2 This is a schematic diagram of the overall structure proposed in this utility model from another perspective; Figure 3 This is a cross-sectional schematic diagram of the adjustment mechanism proposed in this utility model; Figure 4 This is a cross-sectional view of the flange structure proposed in this utility model in the open state; Figure 5 This is a three-dimensional schematic diagram of the opening component proposed in this utility model.

[0012] The numbers in the diagram are: 1. Half-circular block; 2. Positioning screw; 3. Correction screw; 4. Adjusting screw; 5. Top block; 6. Support V-block; 7. Guide rod; 8. Support plate; 9. Sealing ring; 10. Flange. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] Example: See Figures 1 to 5This utility model discloses a flange alignment and opening device, comprising a flange 10 and a semi-circular block 1 disposed on one side of the flange 10. Guide rings are fixed to the opposing surfaces of both flanges 10. A support assembly and a positioning and alignment assembly are installed on the semi-circular block 1. The support assembly and the positioning and alignment assembly facilitate the replacement of the sealing ring 9 and the positioning of the flange 10. The positioning and alignment assembly includes positioning screws 2 threadedly connected to the upper and lower ends of the other side of the semi-circular block 1. The proximal ends of the positioning screws 2 are positioned on both sides of the flange 10. The semi-circular block 1 is fixed to the flange 10 by a positioning screw 2 through the threaded hole of the flange 10; the upper and lower ends of the middle part of one side of the semi-circular block 1 are threaded with a straightening screw 3, and a support plate 8 is vertically provided on one side of the straightening screw 3, and one side of the straightening screw 3 is rotatably connected to the support plate 8, and the cross section of the support plate 8 is an arc shape that matches the flange 10; the far ends of the two support plates 8 abut against the inner wall of the semi-circular block 1, and the position of the flange 10 can be adjusted by the straightening screw 3 through the support plate 8.

[0015] In this utility model, the extension assembly includes an adjusting screw 4 threadedly connected to the middle of one side of the semi-circular block 1. The front end of the adjusting screw 4 passes through the semi-circular block 1, and a top block 5 is provided on one side of the adjusting screw 4. The front end of the adjusting screw 4 is rotatably connected to the top block 5. The adjusting screw 4 facilitates the control of the top block 5 to extend and push out the upper and lower end support V-shaped blocks 6. The front and rear ends of the semi-circular block 1 are connected to vertical guide rods 7. The upper and lower ends of the top block 5 are provided with support V-shaped blocks 6 on inclined surfaces. Both ends of the support V-shaped blocks 6 slide on the guide rods 7. The far surfaces of the support V-shaped blocks 6 abut against the near surfaces of the two flanges 10 respectively. The guide rods 7 facilitate the guidance of the support V-shaped blocks 6. A sealing ring 9 is installed on the outer side of the top surface of the lower flange 10 in conjunction with a guide ring. The guide ring facilitates the replacement of the sealing ring 9.

[0016] Working principle: When using this utility model, firstly, all the original connecting bolts on the flange 10 need to be removed to prepare for subsequent device installation; then, the semi-circular block 1 of the device is correspondingly locked onto the two flanges 10 to be operated, so as to initially position it; next, by rotating, the positioning screw 2 connected to the upper and lower threads on the other side of the semi-circular block 1 is turned into a set of corresponding threaded holes on the flange 10 where the bolts have been removed, so as to initially fix the semi-circular block 1 to the flange 10; at the same time, rotate the correction screw 3 connected to the upper and lower threads on the middle of one side of the semi-circular block 1. Since one side of the correction screw 3 is rotatably connected to the support plate 8 with a cross section that matches the arc of the flange 10, and the far ends of the two support plates 8 abut against the inner wall of the semi-circular block 1, rotating the correction screw 3 will control the support plate 8 to move along the inner wall of the semi-circular block 1 until the support plate 8 firmly abuts against the edge of the flange 10. At this time, the flange 10 is accurately fixed under the action of the correction screw 3. Then, rotate the adjusting screw 4, which is threaded in the middle of one side of the semi-circular block 1. The front end of the adjusting screw 4 passes through the semi-circular block 1 and is rotatably connected to the top block 5. Rotating the adjusting screw 4 will cause the top block 5 to move forward. The upper and lower ends of the top block 5 are equipped with V-shaped supports 6 on their inclined surfaces. The front and rear ends of the semi-circular block 1 are connected to vertical guide rods 7. Both ends of the V-shaped supports 6 slide on the guide rods 7. Under the pushing action of the top block 5, the V-shaped supports 6, which are engaged with the inclined surfaces of the top block 5, will be opened up and down under the guidance of the guide rods 7, thereby opening up the two flanges 10 and keeping them in a fixed state. At this time, that is, The old sealing ring 9 that needs to be replaced can be removed from the flange 10, and the new intact sealing ring 9 can be fitted onto the guide ring that is fitted on the outer side of the top surface of the lower flange 10 to complete the replacement of the sealing ring. After the replacement is completed, the previously removed bolts are put into the threaded holes of the remaining uninstalled parts on the flange 10 and initially screwed in. Then, the positioning screw 2 is reversed to remove it from the threaded hole of the flange 10, and the entire flange straightening and opening device is removed. Finally, the bolts screwed into the threaded holes of the flange 10 are turned one by one to tightly close the two flanges 10 together. At this point, the entire sealing ring replacement operation is completed.

[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A flange straightening and opening device, comprising a flange (10) and a semi-circular block (1) disposed on one side of the flange (10), characterized in that: Guide rings are fixed to the opposite surfaces of the two flanges (10), a support assembly is installed on the semi-circular block (1), and a positioning correction assembly is installed on the semi-circular block (1).

2. The flange straightening and opening device according to claim 1, characterized in that: The positioning and correction assembly includes positioning screws (2) threaded to the upper and lower ends of the other side of the semi-circular block (1), with the proximal ends of the positioning screws (2) placed in the threaded holes of the two flanges (10).

3. The flange straightening and opening device according to claim 1, characterized in that: The upper and lower ends of one side of the semi-circular block (1) are threaded with a correction screw (3). A support plate (8) is vertically provided on one side of the correction screw (3), and one side of the correction screw (3) is rotatably connected to the support plate (8). The inner side of the support plate (8) is arc-shaped to match the flange (10). The far ends of the two support plates (8) abut against the inner wall of the semi-circular block (1).

4. The flange straightening and opening device according to claim 1, characterized in that: The extension assembly includes an adjusting screw (4) threaded to the middle of one side of the semi-circular block (1), the front end of the adjusting screw (4) passing through the semi-circular block (1), and a top block (5) provided on one side of the adjusting screw (4), the front end of the adjusting screw (4) being rotatably connected to the top block (5).

5. A flange straightening and opening device according to claim 4, characterized in that: The front and rear ends of the semi-circular block (1) are connected to vertical guide rods (7). The upper and lower ends of the top block (5) are provided with support V-shaped blocks (6) on the inclined surfaces. Both ends of the support V-shaped blocks (6) slide on the guide rods (7). The far surfaces of the support V-shaped blocks (6) abut against the near surfaces of the two flanges (10).

6. A flange straightening and opening device according to claim 1, characterized in that: A sealing ring (9) is installed on the outer side of the top surface of the lower flange (10) in conjunction with a guide ring.

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