Quick replacement tool for flange gasket
By designing a quick flange gasket replacement tool, which combines a pin, connecting assembly, and fixing plate, the problem of difficult flange gasket replacement is solved. This achieves safe and efficient flange sealing surface opening, reduces personnel injury, and improves operational convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-03-20
AI Technical Summary
In the existing technology, it is difficult to replace flange gaskets, especially when the pipeline expands and deforms, the foundation settles, or the original flange sealing surface has a small gap during installation. Using a pry bar to open the flange surface can easily cause personal injury.
A quick-change tool for flange gaskets was designed, including a pin, a connecting assembly, and a fixing plate. The threaded rod and the top cone provide stable support for the flange, avoiding direct contact between the person and the flange sealing surface. The connecting assembly and the pin position the fixing plate, improving the ease of adjusting the position of the top cone.
It achieves safe and reliable flange sealing surface opening, reduces the risk of personnel injury, and improves replacement efficiency and ease of operation.
Smart Images

Figure CN224012229U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to flange gasket replacement technical field relates to a kind of flange gasket quick replacement tool. BACKGROUND
[0002] In daily work, the flange gasket needs to be replaced due to the damage of flange sealing gasket, leakage and other phenomena, and the difficulty coefficient of replacing flange sealing gasket is increased due to factors such as pipeline expansion deformation, foundation subsidence or small gap between original flange sealing surfaces during installation, and if the flange surface is forcibly opened with a crowbar, the crowbar is likely to slip and easily squeeze the fingers of the personnel.
[0003] The Chinese utility model patent with the authorization announcement number CN203409721U discloses a flange opening device, which comprises a support and a screw rod used for fixedly connecting with both sides of a flange plate, the screw rod is vertically arranged in the middle of the support and is in threaded cooperation with the support, and a top pin in the shape of an inverted cone is fixedly arranged at the lower end of the screw rod. UTILITY MODEL CONTENT
[0004] To solve the above problems, the utility model provides a flange gasket quick replacement tool.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a flange gasket quick replacement tool, which comprises two column pins inserted into two pin holes of a flange plate, two groups of connection assemblies are symmetrically arranged at the left and right ends of the two column pins, one fixed plate is arranged at the end of the two groups of connection assemblies away from the column pins, a threaded rod is threadedly connected to the center position of the front and back sides of the fixed plate, and a top cone is arranged at the end of the threaded rod close to the flange plate.
[0006] Further, the connection assembly comprises two connection plates arranged on the two column pins respectively, a fixed bolt is fixedly connected to the end of the two connection plates away from the column pins, a guide plate is arranged between the two connection plates on the fixed bolt, and the end of the guide plate away from the fixed bolt is movably inserted into the fixed plate.
[0007] Further, two rectangular through holes are formed in the fixed plate, the two rectangular through holes are symmetrically arranged with the center of the fixed plate as the center, and the end of the guide plate away from the fixed bolt is movably inserted into the fixed plate.
[0008] Further, the guide plates are arranged on the upper and lower sides of the end of the fixing plate.
[0009] Compared with the prior art, the utility model has the following beneficial effects:
[0010] The utility model discloses a top cone, threaded rod and fixing plate realize the support to two flange plate sealing surfaces, avoid the direct contact of person and flange sealing surface, reduce the probability of personnel injury, realize the positioning and support of fixing plate through connecting assembly and cancel, guarantee the stability of top cone when using, improve the convenience of staff when adjusting top cone position. ACCURACY OF DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of the utility model.
[0012] In the drawing, 1 is a flange plate, 2 is a connecting plate, 3 is a pin, 4 is a top cone, 5 is a fixing plate, 6 is a guide plate, 7 is a fixing bolt, and 8 is a threaded rod. DETAILED DESCRIPTION
[0013] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the utility model.
[0014] As Figure 1 The utility model discloses a flange gasket quick replacement tool, including two insert in the flange plate 1 two pin holes's column pin 3, two column pin 3's left and right two ends symmetrically set up two groups of connecting components, two group connecting components away from the one end of column pin 3 is provided with a fixed plate 5, and the center position of fixed plate 5 front and back sides is screw connected with threaded rod 8, and the one end close to flange plate 1 of threaded rod 8 is provided with top cone 4.
[0015] In the embodiment, the connecting component includes two connecting plates 2 respectively sleeved on the two column pins 3, and the ends, away from the column pins 3, of the two connecting plates 2 are fixedly connected through the fixing bolts 7. The fixing bolts 7 are sleeved with the guide plates 6 located between the two connecting plates 2, and the ends, away from the fixing bolts 7, of the guide plates 6 are movably inserted into the fixed plate 5.
[0016] In the embodiment, the fixed plate 5 is provided with two rectangular through holes penetrating through the fixed plate 5, and the two rectangular through holes are symmetrically arranged around the center of the fixed plate 5. The ends, away from the fixing bolts 7, of the guide plates 6 are movably inserted into the fixed plate 5.
[0017] In the embodiment, the guide plates 6 are integrally formed with protrusions on the upper and lower sides of one end of the fixing plate 5, and the protrusions can limit the fixing plate 5 in use, thereby preventing the fixing plate 5 from being separated from the guide plates 6 along the end of the guide plates 6.
[0018] The working principle of the technical scheme is as follows: in installation, the worker inserts the column pins 3 into the flanges 1, and sets the four connecting plates 2 on the left and right ends of the two column pins 3, and then fixes the connecting plates 2 and the guide plates 6 together through the fixing bolts 7; in use, the worker moves the fixing plate 5 left and right to make the axis of the top cone 4 be located in the gap between the two flanges 1, and then rotates the screw rod through a wrench, and under the action of the screw thread, the screw thread drives the top cone 4 to be inserted between the two flanges 1, and the two flanges 1 are separated by a certain angle, and the sealing gasket of the original flange sealing surface is leaked, and then the worker can replace the sealing gasket, the technical scheme avoids the direct contact between the person and the flange sealing surface, reduces the probability of personnel injury, is safe and reliable, and is high in efficiency.
[0019] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A quick-change tool for flange gaskets, characterized in that: It includes two pins inserted into two pin holes in the flange. Two sets of connecting components are symmetrically arranged at the left and right ends of the two pins. A fixing plate is provided at the end of the two sets of connecting components away from the pins. A threaded rod is threadedly connected to the center of the front and rear sides of the fixing plate. A top cone is provided at the end of the threaded rod near the flange.
2. The flange gasket quick replacement tool according to claim 1, characterized in that: The connecting assembly includes two connecting plates respectively disposed on two pins. The ends of the two connecting plates away from the pins are fixedly connected by a fixing bolt. A guide plate is disposed on the fixing bolt between the two connecting plates. The end of the guide plate away from the fixing bolt is movably inserted into the fixing plate.
3. The flange gasket quick replacement tool according to claim 2, characterized in that: The fixing plate has two rectangular through holes, which are symmetrically arranged about the center of the fixing plate. The end of the guide plate away from the fixing bolt is movably inserted into the fixing plate.
4. A flange gasket quick-change tool according to claim 3, characterized in that: The guide plate has protrusions on both the upper and lower sides of the end extending from the fixed plate.
Citation Information
Patent Citations
Flange stretching device
CN203409721U