Tool for quickly replacing gasket and blind plate between flanges

Abstract

The utility model relates to a tool for rapidly replacing a gasket and a blind plate between flanges, one end of the blind plate is arranged between the two flanges, the gasket is located between the flanges and the blind plate, the tool comprises a fixed plate, a movable plate, a driving assembly, a positioning piece and a connecting piece, and the fixed plate and the movable plate are oppositely arranged. Arc-shaped clamping parts are arranged at the ends, located on the same side, of the fixed plate and the movable plate; the fixed plate is connected with the movable plate through a driving assembly; the driving assembly is used for driving the movable plate to move away from the fixed plate; at least one of the side, facing the movable plate, of the fixed plate and the side, facing the fixed plate, of the movable plate is provided with a positioning piece, one of the fixed plate and the movable plate is provided with a through hole, the positioning piece is communicated with the through hole and an installation hole in the flange, and the connecting piece is used for stretching into the installation hole and the positioning piece to connect the flange with the fixed plate and / or the movable plate. The tool provided by the utility model is higher in efficiency and simple to operate while ensuring safe operation.

Description

Technical Field

[0001] This utility model relates to a tooling for quickly replacing flange gaskets and blind flanges. Background Technology

[0002] In the process of generating polyester melt using a reactor in a polyester polyester plant, the raw materials need to react in a vacuum environment. One of the important pieces of equipment in the vacuum system is the plate heat exchanger. Multiple sets of plate heat exchangers need to be switched 4-5 times a month. During the cleaning and pressure holding process, the figure-eight blind flanges need to be replaced frequently. The inlet and outlet flanges of the plate heat exchanger are tightly connected, which poses certain safety hazards during replacement. Furthermore, the blind flanges and gaskets are not easy to replace. Currently, multiple pry bars are used to separate the flange spacing, which is not safe and is time-consuming and labor-intensive. Utility Model Content

[0003] The purpose of this invention is to provide a tooling for quickly replacing flange gaskets and blind flanges.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A tooling for quick replacement of flange gaskets and blind flanges is provided. One end of the blind flange is positioned between two flanges, and the gasket is located between the flange and the blind flange. The tooling includes a fixed plate, a movable plate, a drive assembly, a positioning component, and a connecting component. The fixed plate and the movable plate are positioned opposite each other, and both ends of the fixed plate and the movable plate on the same side are provided with arc-shaped locking portions. The fixed plate and the movable plate are connected by the drive assembly, which drives the movable plate to move away from the fixed plate.

[0006] The positioning element is provided on at least one of the fixed plate facing the movable plate and the movable plate facing the fixed plate. A through hole is provided on one of the fixed plate and the movable plate. The positioning element communicates with the through hole and the mounting hole on the flange. The connecting element is used to extend into the mounting hole and the positioning element to connect the flange with the fixed plate and / or the movable plate.

[0007] According to some embodiments of this utility model, the driving assembly includes a bearing housing, a screw, a fixing nut, and a driving component. The bearing housing is disposed on the side of the fixed plate facing the moving plate, and the fixing nut is disposed on the side of the moving plate away from the fixed plate and fixedly connected to the moving plate. A through hole is provided on the moving plate corresponding to the position of the fixing nut. One end of the screw is rotatably connected to a bearing in the bearing housing, and the other end of the screw passes through the through hole and the fixing nut in sequence and extends out a certain distance. The driving component is used to drive the screw to rotate.

[0008] According to some embodiments of this utility model, the driving component is an electric wrench.

[0009] According to some embodiments of this utility model, the other end of the screw is provided with a mating part that cooperates with the driving component.

[0010] According to some embodiments of the present invention, the drive assembly includes an adjusting nut and a screw. One end of the screw is fixedly connected to the fixed plate on the side facing the moving plate, and the other end of the screw passes through the moving plate and extends out a certain distance. The adjusting nut is screwed into the screw by a thread and can move along the axial direction of the screw. The adjusting nut is located on the screw between the moving plate and the fixed plate.

[0011] According to some embodiments of this utility model, the connecting member is parallel to the screw.

[0012] According to some embodiments of this utility model, the positioning element is a positioning nut; the connecting element is a bolt.

[0013] According to some embodiments of this utility model, the positioning element and the connecting element are both cylindrical.

[0014] According to some embodiments of this utility model, multiple positioning elements are provided, and the multiple positioning elements are arranged circumferentially along the corresponding fixed plate or movable plate.

[0015] According to some embodiments of this utility model, both the fixed plate and the movable plate include a body and two extensions. The two extensions are respectively disposed at opposite ends on the same side of the body, and the two extensions and the body form an arc-shaped snap-fit ​​portion. The outer periphery of the arc-shaped snap-fit ​​portion is arc-shaped with the outer periphery of the body.

[0016] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0017] The tooling for quick replacement of flange gaskets and blind flanges provided by this utility model uses a drive assembly to move a moving plate away from the fixed plate, thereby increasing the gap between the two flanges, facilitating quick and easy replacement of blind flanges and gaskets, and improving efficiency. By setting up positioning and connecting parts, the tooling will not detach from the flange when the moving plate is driven, ensuring high safety. It is both safe to operate and more efficient, and the operation is simple. Attached Figure Description

[0018] Appendix Figure 1 This is a first-view structural diagram of the tooling for quick replacement of flange gaskets and blind flanges in Example 1.

[0019] Appendix Figure 2 This is a second-view structural diagram of the tooling for quick replacement of flange gaskets and blind flanges in Example 1;

[0020] Appendix Figure 3 This is a third-view structural diagram of the tooling for quick replacement of flange gaskets and blind flanges in Example 1.

[0021] Appendix Figure 4 This is a fourth-view structural diagram of the tooling for quick replacement of flange gaskets and blind flanges in Example 1.

[0022] Appendix Figure 5 This is a fifth-view structural diagram of the tooling for quick replacement of flange gaskets and blind flanges in Example 1;

[0023] Appendix Figure 6 This is a first-view structural diagram of the tooling for quick replacement of flange gaskets and blind flanges in Example 2;

[0024] Appendix Figure 7 This is a second-view structural diagram of the tooling for quick replacement of flange gaskets and blind flanges in Example 2;

[0025] Appendix Figure 8 This is a third-view structural diagram of the tooling for quick replacement of flange gaskets and blind flanges in Example 2;

[0026] Appendix Figure 9 This is a fourth-view structural diagram of the tooling for quick replacement of flange gaskets and blind flanges in Example 2;

[0027] Appendix Figure 10 This is a fifth-view structural diagram of the tooling for quick replacement of flange gaskets and blind flanges in Example 2;

[0028] Appendix Figure 11 This is a sixth-view structural diagram of the tooling for quick replacement of flange gaskets and blind flanges in Example 2;

[0029] Appendix Figure 12 This is a structural diagram from the seventh perspective of the tooling for quick replacement of flange gaskets and blind flanges in Example 2;

[0030] Appendix Figure 13 A structural diagram of the flange and pipe from a first-person perspective;

[0031] Appendix Figure 14 This is a structural diagram of the flange and pipe from a second-view perspective.

[0032] Appendix Figure 15 This is a structural diagram of a blind flange.

[0033] In the attached diagrams above:

[0034] 1-Fixed plate, 101-Body, 102-Extension, 103-Snap-fit ​​part; 2-Moving plate, 201-Through hole; 3-Positioning element; 4-Bearing seat; 5-Screw; 6-Fixing nut; 7-Adjusting nut; 8-Matching part; 9-Flange; 10-Gasket; 11-Blind plate, 111-First part, 112-Second part, 113-Third part; 12-Bolt and nut assembly; 13-Pipe. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] Blind plate 11 is figure-eight shaped, see [link / reference] Figure 15 The blind flange 11 comprises a first part 111, a connecting part, and a second part 112 connected in sequence. The first part 111 is annular, the second part 112 is disc-shaped, and the connecting part is strip-shaped. One end of the blind flange 11 (the first part 111) is positioned between two flanges 9. A gasket 10 is located between one side of the flange 9 and the blind flange 11, and / or another gasket 10 is located between the flange 9 and the other side of the blind flange 11. By increasing the gap between the two flanges 9, the blind flange 11 and the gasket 10 can be removed. The two flanges 9 are connected by a bolt and nut assembly 12, with one bolt passing through the first part 111 of the blind flange 11.

[0038] Example 1

[0039] See Figures 1 to 5 The tooling shown is for quick replacement of flange gasket 10 and blind flange 11. The tooling includes a fixed plate 1, a movable plate 2, a drive assembly, a positioning component 3, and a connecting component. The fixed plate 1 and the movable plate 2 are arranged opposite to each other. Both the fixed plate 1 and the movable plate 2 are provided with an arc-shaped snap-fit ​​part 103 on one end of the same side.

[0040] The fixed plate 1 and the movable plate 2 are connected by a drive assembly, which is used to drive the movable plate 2 to move away from the fixed plate 1.

[0041] See Figure 1-5 The drive assembly includes a bearing housing 4, a screw 5, a fixing nut 6, and a drive component. The bearing housing 4 is located on the side of the fixed plate 1 facing the moving plate 2. The fixing nut 6 is located on the side of the moving plate 2 away from the fixed plate 1 and is fixedly connected to the moving plate 2. A through hole is provided on the moving plate 2 corresponding to the position of the fixing nut 6, and the through hole penetrates the opposite sides of the moving plate 2 (the through hole is a threaded hole or a smooth through hole). The screw 5 and the fixing nut 6 are screwed together. One end of the screw 5 is rotatably connected to the bearing in the bearing housing 4. The other end of the screw 5 passes through the through hole and the fixing nut 6 in sequence and extends a certain distance. The drive component is used to drive the screw 5 to rotate. The rotation of the screw 5 drives the fixing nut 6 and the moving plate 2 to move along the axial direction of the screw 5. The moving plate 2 moves close to a flange and pushes the flange away from the other flange, thereby increasing the distance between the two flanges.

[0042] In this example, preferably, the driving component is an electric wrench, and the other end of the screw 5 is provided with a mating part 8 that cooperates with the driving component. The mating part 8 is located on the side of the moving plate 2 away from the fixed plate 1. Using an electric wrench, the screw 5 can be quickly driven to rotate, thereby moving the moving plate 2 along the axial direction of the screw 5, saving time and ensuring high safety.

[0043] The specific implementation method for replacing the quick flange gasket and blind flange in this example is as follows: the arc-shaped snap-fit ​​part 103 of the tooling is snapped between the two flanges, and then the drive screw 5 is rotated by the drive component to drive the fixing nut 6 and the moving plate 2 to move away from the fixing plate 1. During the movement, the moving plate 2 moves along the direction of the screw 5 until the moving plate 2 pushes the adjacent flange to move, so that the gap between the two flanges increases. Then the blind flange and gasket are removed.

[0044] Example 2

[0045] See Figures 6 to 12 The tooling shown is for quick replacement of flange gaskets and blind flanges. The tooling includes a fixed plate 1, a movable plate 2, a drive assembly, a positioning component 3, and a connecting component. The fixed plate 1 and the movable plate 2 are arranged opposite to each other. Both the fixed plate 1 and the movable plate 2 are provided with an arc-shaped snap-fit ​​part 103 on one end of the same side.

[0046] The fixed plate 1 and the movable plate 2 are connected by a drive assembly, which is used to drive the movable plate 2 to move away from the fixed plate 1.

[0047] The drive assembly includes an adjusting nut 7 and a screw 5. One end of the screw 5 is fixedly connected to the side of the fixed plate 1 facing the movable plate 2, and the other end of the screw 5 passes through the movable plate 2 and extends out of the movable plate 2 by a certain distance. The adjusting nut 7 is screwed into the screw 5 by threads and can move along the axial direction of the screw 5. The adjusting nut 7 is located on the screw 5 between the movable plate 2 and the fixed plate 1. The movable plate 2 has a through hole for the screw 5 to pass through, and the through hole is a light-permeable hole.

[0048] The specific implementation method for replacing the flange gasket and blind flange in this example is as follows: The arc-shaped locking part 103 of the tooling is positioned between the two flanges and locked in place. Then, the adjusting nut 7 is rotated and moved away from the fixed plate 1. During this movement, the adjusting nut 7 moves along the screw 5 until it abuts against the moving plate 2. The adjusting nut 7 continues to rotate, pushing the moving plate 2 along the screw 5 until the moving plate 2 pushes the adjacent flange to move, increasing the gap between the two flanges. Then, the blind flange and gasket 10 are removed. The gap between the two flanges can be adjusted as needed.

[0049] In Examples 1-2, the positioning element 3 is configured as follows:

[0050] In some implementations, see Figure 1-5 A positioning element 3 is provided on the side of the fixed plate 1 facing the movable plate 2. The movable plate 2 has a through hole 201. The positioning element 3 communicates with the through hole 201 on the movable plate 2 and the mounting hole on the flange. One end of the connecting element extends into the mounting hole on the flange, the through hole 201, and the positioning element 3 in sequence to connect the flange with the fixed plate 1 and the movable plate 2. The movable plate 2 can move along the axial direction of the connecting element during movement.

[0051] In some embodiments, a positioning element 3 is provided on the side of the movable plate 2 facing the fixed plate 1. A through hole is provided on the movable plate 2. The positioning element 3 communicates with the through hole and the mounting hole on the flange. The connecting element extends into the mounting hole, the through hole, and the positioning element 3 on the flange to connect the flange and the movable plate 2. The movable plate 2 can move axially along the connecting element during movement.

[0052] In some embodiments, a positioning element 3 is provided on the side of the fixed plate 1 facing the movable plate 2. The fixed plate 1 has a through hole, and the positioning element 3 communicates with the through hole and the mounting hole on the flange. The connecting element extends into the mounting hole on the other flange, the through hole on the fixed plate 1, and the positioning element 3 to connect the flange and the fixed plate 1.

[0053] After the bolts and nuts on the flanges are removed, the distance between the two flanges is not particularly large. If the two flanges are only engaged by the arc-shaped locking part 103, the tooling may easily come off under stress and injure the operator's hand during the movement of the driving moving plate 2, posing a safety hazard. By setting the positioning part 3 and the connecting part, when the arc-shaped locking part 103 of the tooling is engaged between the two flanges, one flange can be connected to the fixed plate 1 and / or the moving plate 2. During the movement of the driving moving plate 2, the tooling will not move left or right (the workpiece will not move around the flange circumference), limiting the tooling from detaching from the flange and ensuring high safety.

[0054] In embodiments 1-2, in some implementations, the positioning element 3 is a positioning nut; the connecting element is a bolt. In other implementations, both the positioning element 3 and the connecting element are cylindrical. The connecting element is parallel to the screw 5.

[0055] In embodiments 1-2, multiple positioning elements 3 are provided, and the multiple positioning elements 3 are arranged circumferentially along the corresponding fixed plate 1 or movable plate 2. Correspondingly, multiple through holes are provided on the fixed plate 1 or movable plate 2, and the multiple through holes correspond one-to-one with the positioning elements 3.

[0056] In embodiments 1-2, the fixed plate 1 includes a body 101 and two extensions 102. The two extensions 102 are respectively disposed at opposite ends on the same side of the body 101, and an arc-shaped engaging portion 103 is formed between the two extensions 102 and the body 101; the outer periphery of the arc-shaped engaging portion 103 is arc-shaped with the outer periphery of the body 101. The movable plate 2 includes a body and two extensions. The two extensions are respectively disposed at opposite ends on the same side of the body, and an arc-shaped engaging portion is formed between the two extensions and the body; the outer periphery of the arc-shaped engaging portion is arc-shaped with the outer periphery of the body. See also Figure 1-5 The outer periphery of the arc-shaped latching part 103 and the outer periphery of the body 101 form a smooth arc; see also Figure 11-12 The curvature of the outer periphery of the arc-shaped snap-fit ​​part 103 is different from the curvature of the outer periphery of the body 101.

[0057] The advantages of the tooling for quickly replacing flange gaskets and blind flanges in this example are as follows: the moving plate is driven away from the fixed plate by the drive assembly, which increases the gap between the two flanges, leaving enough space for replacing the flanges and gaskets. After the operation is completed, it is reset, which facilitates quick and easy replacement of blind flanges and gaskets and improves efficiency. By setting up positioning and connecting parts, the tooling will not detach from the flange when the moving plate is driven, which ensures high safety. It is more efficient and simple to operate while ensuring safe operation.

[0058] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A tooling for quick replacement of flange gaskets and blind flanges, wherein one end of the blind flange is disposed between two flanges, and the gasket is located between the flange and the blind flange, characterized in that, The tooling includes a fixed plate, a movable plate, a drive assembly, a positioning component, and a connecting component. The fixed plate and the movable plate are arranged opposite to each other, and both the fixed plate and the movable plate have an arc-shaped locking portion on one end of the same side. The fixed plate and the movable plate are connected by the drive assembly, which is used to drive the movable plate to move away from the fixed plate. The positioning element is provided on at least one of the fixed plate facing the movable plate and the movable plate facing the fixed plate. A through hole is provided on one of the fixed plate and the movable plate. The positioning element communicates with the through hole and the mounting hole on the flange. The connecting element is used to extend into the mounting hole and the positioning element to connect the flange with the fixed plate and / or the movable plate.

2. The tooling for quick replacement of flange gaskets and blind flanges according to claim 1, characterized in that, The drive assembly includes a bearing housing, a screw, a fixing nut, and a drive component. The bearing housing is located on the side of the fixed plate facing the moving plate. The fixing nut is located on the side of the moving plate away from the fixed plate and is fixedly connected to the moving plate. A through hole is provided on the moving plate corresponding to the position of the fixing nut. One end of the screw is rotatably connected to a bearing in the bearing housing. The other end of the screw passes through the through hole and the fixing nut in sequence and extends a certain distance. The drive component is used to drive the screw to rotate.

3. The tooling for quick replacement of flange gaskets and blind flanges according to claim 2, characterized in that, The driving component is an electric wrench.

4. The tooling for quick replacement of flange gaskets and blind flanges according to claim 2, characterized in that, The other end of the screw is provided with a mating part that cooperates with the driving component.

5. The tooling for quick replacement of flange gaskets and blind flanges according to claim 1, characterized in that, The drive assembly includes an adjusting nut and a screw. One end of the screw is fixedly connected to the fixed plate on the side facing the movable plate, and the other end of the screw passes through the movable plate and extends out by a distance. The adjusting nut is screwed into the screw by a thread and can move along the axial direction of the screw. The adjusting nut is located on the screw between the movable plate and the fixed plate.

6. The tooling for quick replacement of flange gaskets and blind flanges according to claim 2 or 5, characterized in that, The connector is parallel to the screw.

7. The tooling for quick replacement of flange gaskets and blind flanges according to claim 1, characterized in that, The positioning component is a positioning nut; the connecting component is a bolt.

8. The tooling for quick replacement of flange gaskets and blind flanges according to claim 1, characterized in that, The positioning and connecting components are both cylindrical.

9. The tooling for quick replacement of flange gaskets and blind flanges according to claim 1, characterized in that, Multiple positioning elements are provided, and the multiple positioning elements are arranged circumferentially along the corresponding fixed plate or movable plate.

10. The tooling for quick replacement of flange gaskets and blind flanges according to claim 1, characterized in that, Both the fixed plate and the movable plate include a body and two extensions. The two extensions are respectively disposed at opposite ends on the same side of the body, and the two extensions and the body form an arc-shaped locking part. The outer periphery of the arc-shaped locking part is arc-shaped with the outer periphery of the body.

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