Auxiliary replacement device for flange sealing gasket

Abstract

The utility model belongs to the technical field of dismounting tools, and relates to an auxiliary replacing device for a flange sealing gasket, which comprises a body, a screw rod, a jacking piece, a sleeve and two positioning rods, the body comprises a bottom plate and two groups of connecting columns, and the top of each group of connecting columns is provided with a connecting hole in a countershaft manner; the two positioning rods penetrate through the connecting holes of the corresponding sets and the corresponding through holes in the surfaces of the two flanges to be disassembled respectively, the two flanges to be disassembled are positioned between the two sets of connecting columns, a threaded through hole is formed in the center of the bottom plate, the lead screw is arranged in the threaded through hole, the sleeve is connected to one end of the lead screw in a sleeved mode, and external threads are arranged on the outer surface of the sleeve. One end of the ejection piece is provided with a sharp ejection head, the other end of the ejection piece is provided with an ejection seat, one end of the ejection seat is provided with an internal threaded hole, the internal threaded hole of the ejection seat is in threaded fit with the external threads of the sleeve, and the ejection head is located in a gap between the end faces of the two flanges to be disassembled. When the flange is disassembled, the end face of the flange cannot be damaged, and the safety of flange disassembling operation is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of disassembly tools and relates to an auxiliary replacement device for a flange sealing gasket. Background Art

[0002] Flanges are components that connect shafts and pipe ends. They have holes in the flanges, which are bolted together. Flanges are typically sealed with gaskets, which are circular rings made of a material that can deform plastically and possess a certain strength. A common flange failure is gasket failure. Failed gaskets need to be removed and replaced.

[0003] The existing method for replacing gaskets is to first remove the flange's fixing bolts, then use a crowbar to pry the two flanges apart, remove the damaged gasket, and then install a new gasket. This method is labor-intensive and inefficient for large-diameter flanges. Improper use of the crowbar can easily damage the flange end face, reducing the flange's sealing effectiveness and causing accidental injury, posing a safety hazard. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a flange sealing gasket auxiliary replacement device, which will not damage the flange end face when the flange is disassembled, thereby improving the safety of the flange disassembly operation.

[0005] The utility model is achieved in this way and provides a flange sealing gasket auxiliary replacement device, including a body, a screw rod, a push-open piece, a sleeve and two positioning rods, the body including a base plate and two groups of connecting columns, the two groups of connecting columns are respectively fixed on the four corners on the same side of the base plate, and connecting holes are axially arranged at the top of each group of connecting columns, the two groups of connecting holes respectively correspond to the two through holes on the surfaces of the two flanges to be disassembled, the two positioning rods are respectively inserted into the connecting holes of the corresponding groups and the corresponding through holes on the surfaces of the two flanges to be disassembled, the two flanges to be disassembled are positioned between the two groups of connecting columns, a threaded through hole is provided in the center part of the base plate, the screw rod is provided in the threaded through hole, the sleeve is sleeved at one end of the screw rod, an external thread is provided on the outer surface of the sleeve, a pointed head is provided at one end of the push-open piece, a push-open seat is provided at the other end, an internal threaded hole is provided at one end of the push-open seat, the internal threaded hole of the push-open seat forms a threaded match with the external thread of the sleeve, and the head is located in the gap between the end faces of the two flanges to be disassembled.

[0006] Furthermore, a flat portion is provided at the other end of the screw rod to facilitate the rotation of the screw rod.

[0007] Furthermore, a through hole is provided in the flat portion of the screw rod.

[0008] Furthermore, the pointed head of the ejector is made of tetrafluoroethylene plastic.

[0009] Furthermore, an inner through hole is provided on the sleeve, and the sleeve is sleeved on one end of the screw rod through the inner through hole. A cotter pin and a screw rod washer are provided at one end of the screw rod, and the outer diameter of the screw rod washer is smaller than the external thread of the sleeve and larger than the inner through hole of the sleeve.

[0010] Compared with the prior art, the flange gasket auxiliary replacement device of the present invention has the following features:

[0011] 1. Simple structure and easy to use.

[0012] 2. Effectively protect the flange and gasket to prevent damage during replacement.

[0013] 3. Suitable for replacing flange gaskets of different types and sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention in use;

[0015] Figure 2 for Figure 1 A three-dimensional schematic diagram of the main body. DETAILED DESCRIPTION

[0016] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0017] Please also refer to Figure 1 as well as Figure 2 As shown, a preferred embodiment of the flange gasket auxiliary replacement device of the present invention includes a body 1, a screw rod 2, a top opening member 3, a sleeve 4 and two positioning rods 5.

[0018] The body 1 comprises a base plate 11 and two sets of connecting posts 12, each secured to the four corners of the same side of the base plate 11. Connecting holes 13 are axially positioned at the top of each set of connecting posts 12, with the two sets of connecting holes 13 corresponding to two through-holes B on the surfaces of the two flanges A to be disassembled. Two positioning rods 5 are inserted through the corresponding sets of connecting holes 13 and the corresponding through-holes B on the surfaces of the two flanges to be disassembled, positioning the two flanges A between the two sets of connecting posts 12.

[0019] A threaded through-hole 14 is provided in the center of the base plate 11, and the screw rod 2 is disposed within the threaded through-hole 14. The threads on the screw rod 2 form a threaded connection with the threads of the threaded through-hole 14. A sleeve 4 is sleeved onto one end of the screw rod 2, and an external thread is provided on the outer surface of the sleeve 4. A pointed plug 31 is provided at one end of the ejection member 3, and an ejection seat 32 is provided at the other end. An internal threaded hole 33 is provided at one end of the ejection seat 32, and the internal threaded hole 33 of the ejection seat 32 forms a threaded connection with the external thread of the sleeve 4. The plug is positioned in the gap between the end faces of the two flanges A to be disassembled.

[0020] A flat portion 21 is provided at the other end of the screw rod 2 to facilitate the rotation of the screw rod 2 .

[0021] A through hole 22 is provided on the flat portion 21 of the screw rod 2. The through hole 22 facilitates the rotation of the screw rod 2 after the force rod is inserted.

[0022] The pointed head 31 of the ejector 3 is made of tetrafluoroethylene plastic to prevent the pointed head 31 from damaging the flange A and the sealing gasket.

[0023] An inner through hole 41 is provided on the sleeve 4, and the sleeve 4 is sleeved on one end of the screw 2 through the inner through hole 41. A cotter pin and a screw gasket 6 are provided at one end of the screw 2, and the outer diameter of the screw gasket 6 is smaller than the outer thread of the sleeve 4 and larger than the inner through hole 41 of the sleeve 4. After adopting this structure, when the screw 2 rotates, it will press against the ejection part 3 and will not drive the ejection part 3 to rotate. The rotational motion of the screw 2 is converted into the linear motion of the ejection part 3, avoiding the rotation of the ejection part 3 and reducing the ejection efficiency. When the screw 2 moves forward, its front end presses against the ejection part 3 and moves forward; when the screw 2 moves backward, the screw gasket 6 pulls the sleeve 4 and the ejection part 3 to move backward at the same time.

[0024] In another embodiment of the present invention, the two positioning rods 5 each comprise two sets of bolts and nuts. Before removing the flanges for gasket replacement, first insert the bolts through the connection holes 13 of the connecting column 12 on one side, then through the through holes B of the two flanges A to be removed, and then through the connection holes 13 of the connecting column 12 on the other side. The nuts are then tightened. The body 1 is connected to the two flanges A to be removed via the two sets of bolts and nuts.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A flange gasket auxiliary replacement device, characterized in that: The cam is connected to the base plate of the second end ...

2. The flange gasket auxiliary replacement device according to claim 1, characterized in that: A flat portion is provided at the other end of the screw rod for facilitating the rotation of the screw rod.

3. The flange gasket auxiliary replacement device according to claim 2, characterized in that: A through hole is provided in the flat portion of the screw rod.

4. The flange gasket auxiliary replacement device according to claim 1, characterized in that: The pointed top of the top opening piece is made of tetrafluoroplastic.

5. The flange gasket auxiliary replacement device according to claim 1, characterized in that: An inner through hole is provided on the sleeve, and the sleeve is sleeved on one end of the screw rod through the inner through hole. A cotter pin and a screw rod washer are provided at one end of the screw rod. The outer diameter of the screw rod washer is smaller than the outer thread of the sleeve and larger than the inner through hole of the sleeve.

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