Tool for taking out metal sealing element

Abstract

The invention discloses a metal sealing element taking-out tool which comprises a taking-out assembly and a driving assembly. The taking-out assembly comprises a taking-out piece body and an abutting piece arranged on the taking-out piece body, and the taking-out piece body is detachably connected with the metal sealing piece; on the basis that the abutting piece abuts against the taking-out piece body, the abutting piece applies extrusion force pointing to the pipeline to the taking-out piece body; the driving assembly comprises a second threaded rod, the second threaded rod is in threaded connection with the taking-out piece body, the taking-out piece body is controlled to move along a preset path based on rotation of the second threaded rod, and the preset path is arranged in the axis direction of the pipeline. The taking-out piece body is supported through the abutting piece, radial movement of the taking-out piece body along the pipeline is limited, the second threaded rod is prevented from driving the taking-out piece body to rotate when rotating, it is guaranteed that the second threaded rod controls the taking-out piece body to move along the preset path, and therefore the metal sealing piece is driven to move, and the technical problem that the metal sealing piece is difficult to take out is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of sealing ring disassembly and assembly, and in particular relates to a metal sealing component removal tool. Background Art

[0002] Metal seals are high-strength parts that are deformed or deformed by pressure to fit perfectly with pipes or equipment interfaces, and are fixed and sealed. Metal seals are widely used in the fields of petroleum, chemical industry, aerospace, and machinery manufacturing. Metal seals can effectively prevent equipment from leaking air or liquid. The removal process of existing metal seals is generally manual. However, in order to achieve a sealing effect, metal seals generally have an interference fit with the pipe. It is difficult to remove metal seals manually, so it is urgent to solve the technical problem of the difficulty in removing metal seals. Summary of the invention

[0003] The purpose of the present invention is to provide a metal seal removal tool to solve the problems existing in the above-mentioned prior art.

[0004] To achieve the above-mentioned purpose, the present invention provides a metal seal removal tool, including a removal component and a drive component; the metal seal abuts and presses against the inner wall of the pipe; the removal component includes a removal component body and an abutment member arranged on the removal component body, the removal component body is provided with a plurality of groups and is detachably connected to the metal seal respectively; based on the abutment member abutting against the removal component body, the abutment member applies an extrusion force directed to the pipe to the removal component body; the drive component includes a second threaded rod, the second threaded rod is threadedly connected to the removal component body, and based on the rotation of the second threaded rod, the removal component body is controlled to move along a preset path, and the preset path is set along the axial direction of the pipe.

[0005] Optionally, the removal piece body comprises a clamping claw portion and a fixing portion which are fixedly connected, the clamping claw portion is detachably connected to the metal seal, and the fixing portion is threadedly connected to the second threaded rod.

[0006] Optionally, the claw portion includes a cantilever, one end of the cantilever close to the fixing portion is fixedly connected to the fixing portion, and one end of the cantilever away from the fixing portion is fixedly provided with a clamping plate, and the clamping plate is arranged on a side of the metal seal away from the fixing portion.

[0007] Optionally, the clamping plate is arranged perpendicularly to the cantilever, and the cantilever abuts against the metal seal.

[0008] Optionally, the abutment member includes a supporting portion and an abutment portion; the supporting portion is arranged in the middle of all the removal member bodies; one end of the abutment portion is detachably connected to the supporting portion, and the other end of the abutment portion is detachably connected to the fixing portion; the abutment portions are distributed radially along the pipeline.

[0009] Optionally, the abutment portion is a first threaded rod, a first threaded hole is formed on a side of the support portion close to the first threaded rod, one end of the first threaded rod is threadedly connected to the first threaded hole, and the other end of the first threaded rod is detachably connected to the fixing portion.

[0010] Optionally, the fixing portion is provided with a first mounting hole, and the first mounting hole is arranged radially along the pipe; one end of the first threaded rod close to the fixing portion passes through the first mounting hole, and a first nut and a second nut are threadedly connected to the first threaded rod, and the first nut and the second nut are respectively arranged on both sides of the first mounting hole.

[0011] Optionally, the fixing portion is provided with a second threaded hole along the direction of the preset path, and the second threaded rod and the second threaded hole are threadedly connected.

[0012] Optionally, a drive nut is fixedly provided at one end of the second threaded rod facing away from the pipe.

[0013] Optionally, the removal piece body is provided in no less than 3 groups.

[0014] Compared with the prior art, the present invention has the following advantages and technical effects:

[0015] When the present invention is working, the second threaded rod is threadedly connected with the extraction member body, and several extraction member bodies are installed at different positions of the metal seal in a detachable connection manner, and the abutment member is abutted with the extraction member body, and the abutment member applies an extrusion force directed to the pipeline to the extraction member body, and the abutment member supports the extraction member body, and the metal seal is clamped on the pipeline, and the extraction member body and the metal seal are detachably connected, and the pipeline and the abutment member jointly limit the radial movement of the extraction member body along the pipeline, thereby realizing the radial limit of the extraction member body, preventing the extraction member body from rotating when the second threaded rod rotates, ensuring that the second threaded rod controls the extraction member body to move along a preset path, thereby driving the metal seal to move, and when one of the extraction member bodies moves a certain distance, the other second threaded rods are controlled in turn to drive the corresponding extraction member body to move, thereby driving the different points of the metal seal to move, until the metal seal is completely taken out, and the removal of the metal seal is completed. The technical problem of the difficulty in taking out the metal seal is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 Structural schematic diagram of the metal seal removal tool of the present invention;

[0018] Figure 2 Another state structural schematic diagram of the metal seal removal tool of the present invention;

[0019] Figure 3 Structural schematic diagram of the removal part body of the present invention;

[0020] Figure 4 Bottom view of the metal seal removal tool of the present invention;

[0021] Figure 5 Structural schematic diagram of the support part of the present invention.

[0022] Wherein, 1. Removal part body, 11. Claw part, 111. Cantilever, 112. Clamping plate, 12. Fixed part, 121. First mounting hole, 122. Second threaded hole, 2. Metal seal, 3. Second threaded rod, 31. Driving nut, 4. Support part, 41. First threaded hole, 5. First threaded rod, 61. First nut, 62. Second nut. Detailed implementation manners

[0023] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. The following will refer to the drawings and combine with the embodiments to detail the present invention.

[0024] Refer to Figures 1 - 5, the present invention provides a tool for removing a metal seal, which includes a removal component and a driving component; the metal seal is in abutting and pressing contact with the inner wall of the pipe. The removal component includes a removal part body 1 and an abutting part arranged on the removal part body 1. There are several groups of removal part bodies 1 which are respectively detachably connected to the metal seal 2; based on the abutting of the abutting part against the removal part body 1, the abutting part exerts a squeezing force on the removal part body 1 pointing to the pipe; the driving component includes a second threaded rod 3, and the second threaded rod 3 is threadedly connected to the removal part body 1. Based on the rotation of the second threaded rod 3, the movement of the removal part body 1 along a preset path is controlled, and the preset path is arranged along the axial direction of the pipe. In this embodiment, the number of removal part bodies 1 is the same as that of the second threaded rods 3.

[0025] During the operation of this embodiment, the second threaded rod 3 is threadedly connected to the removal part body 1, and several removal part bodies 1 are installed at different positions of the metal seal 2 in a detachable connection manner. The abutting part is abutted against the removal part body 1, and the abutting part exerts a squeezing force on the removal part body 1 pointing to the pipe. The abutting part supports the removal part body 1, and the metal seal 2 is clamped on the pipe. The removal part body 1 and the metal seal 2 are detachably connected, so that the pipe and the abutting part jointly restrict the radial movement of the removal part body 1 along the pipe, thereby realizing the radial limit of the removal part body 1 and preventing the removal part body 1 from rotating when the second threaded rod 3 rotates, ensuring that the second threaded rod 3 controls the movement of the removal part body 1 along the preset path, thereby driving the movement of the metal seal 2. When one of the removal part bodies 1 moves a certain distance, the other second threaded rods 3 are sequentially controlled to drive the corresponding removal part bodies 1 to move, thereby driving the movement of different points of the metal seal 2 until the metal seal 2 is completely removed, completing the removal work of the metal seal 2. During the removal process of the metal seal 2, one person can sequentially control the second threaded rod 3 to drive the corresponding removal part body 1 to move, driving the different points of the metal seal 2 to move sequentially; of course, multiple people can also simultaneously control the second threaded rod 3 to drive the corresponding removal part bodies 1 to move, driving the different points of the metal seal 2 to move simultaneously.

[0026] In this embodiment, the removal part body 1 can achieve detachable connection with the metal seal 2 in various ways such as clamping, plugging, and lapping; when the removal part body 1 and the metal seal 2 achieve detachable connection by plugging, several plugging holes are opened on the metal seal 2, and the removal part body 1 includes several protrusions inserted into the plugging holes. The removal part body 1 and the metal seal 2 are detachably connected by inserting the protrusions into the plugging holes, but this connection method will damage the integrity of the metal seal 2 and is not conducive to the recycling of the metal seal 2.

[0027] According to a further optimized solution, the removal part body 1 includes a fixedly connected claw portion 11 and a fixed portion 12, the claw portion 11 is detachably connected to the metal seal 2, and the fixed portion 12 is threadedly connected to the second threaded rod 3. Through the detachable connection between the claw portion 11 and the metal seal 2, the second threaded rod 3 drives the fixed portion 12 threadedly connected thereto to move, thereby driving the claw portion 11 and the metal seal 2 to move along a preset path.

[0028] Preferably, the claw portion 11 and the metal seal 2 are detachably connected by overlapping, and the claw portion 11 includes a cantilever 111, and one end of the cantilever 111 close to the fixing portion 12 is fixedly connected to the fixing portion 12, and the other end of the cantilever 111 away from the fixing portion 12 is fixedly provided with a clamping plate 112, and the clamping plate 112 is arranged on the side of the metal seal 2 away from the fixing portion 12. And the preset path direction is the direction in which the claw portion 11 points to the fixing portion 12. When the second threaded rod 3 drives the corresponding removal member body 1 to move, since the clamping plate 112 is arranged on the side of the metal seal 2 away from the fixing portion 12, the clamping plate 112 will push the metal seal 2 to move until the metal seal 2 is separated from the pipe, and the removal of the metal seal 2 is completed.

[0029] In this embodiment, the abutment can be implemented in two ways: internal support and external support. When the abutment adopts external support, the abutment includes a U-shaped clamping plate, which includes two side plates arranged opposite to each other, and the two side plates are arranged on both sides of the extraction member body 1, the metal seal 2 and the inner wall of the pipe, and one or both side plates are provided with a threaded hole, and the threaded hole is threadedly connected with a supporting threaded rod. When there is one threaded rod, one end of the threaded rod abuts against the extraction member body 1 or the inner wall of the pipe, and when there are two threaded rods, the ends of the two threaded rods abut against the extraction member body 1 or the inner wall of the pipe respectively, thereby realizing radial limitation of the extraction member body 1 and preventing the metal seal 2 from being separated from the claw portion 11 during the extraction process.

[0030] Further optimization solution: The abutting member adopts internal support. The abutting member includes a support portion 4 and an abutting portion. The support portion 4 is arranged in the middle of all the extraction member bodies 1; one end of the abutting portion is detachably connected to the support portion 4, and the other end of the abutting portion is detachably connected to the fixing portion 12; the abutting portion is distributed radially along the pipeline. During the installation process, the fixing portion 12 and the support portion 4 are detachably connected through the abutting portion, and the fixing portion 12 of each extraction member body 1 is supported by the abutting portion, restricting the radial movement of the extraction member body 1 along the pipeline, thereby realizing the radial limit of the extraction member body 1, preventing the extraction member body 1 from rotating when the second threaded rod 3 rotates, ensuring that the second threaded rod 3 controls the extraction member body 1 to move along a preset path, and thus driving the metal seal 2 to move. Compared with the external support method of the abutting member in this embodiment, the radial limit work of the extraction member body 1 can be completed through one support portion 4 and multiple abutting portions, reducing the number of parts of the abutting member and making the operation simpler.

[0031] Whether the abutting member is realized by the internal support method or the external support method, it is achieved by controlling the abutting of the extraction member body 1 and the metal seal 2, that is, by controlling the distance or relative position between the extraction member body 1 and the metal seal 2. The side of the metal seal 2 facing away from the extraction member body 1 is the pipeline, and the pipeline supports the other side of the metal seal 2. The inner wall of the pipeline and the abutting member act together to restrict the radial movement of the extraction member body 1 along the pipeline, thereby realizing the radial limit of the extraction member body 1, preventing the extraction member body 1 from rotating when the second threaded rod 3 rotates, ensuring that the second threaded rod 3 controls the extraction member body 1 to move along a preset path, and thus driving the metal seal 2 to move.

[0032] Preferably, the abutting portion is a first threaded rod 5. A first threaded hole 41 is provided on the side of the support portion 4 close to the first threaded rod 5. One end of the first threaded rod 5 is threadedly connected to the first threaded hole 41, and the other end of the first threaded rod 5 is detachably connected to the fixing portion 12. The detachable connection between the first threaded rod 5 and the support portion 4 is realized by means of threaded connection, and the operation is simple.

[0033] The other end of the first threaded rod 5 can be connected by threaded connection, clamping, nut fixing and other methods. Preferably, the fixing portion 12 is provided with a first mounting hole 121, and the first mounting hole 121 is arranged along the radial direction of the pipeline; the end of the first threaded rod 5 close to the fixing portion 12 passes through the first mounting hole 121, and the first threaded rod 5 is threadedly connected with a first nut 61 and a second nut 62, and the first nut 61 and the second nut 62 are arranged on both sides of the first mounting hole 121. In this embodiment, the first threaded rod 5 and the fixing portion 12 are detachably connected by the first nut 61 and the second nut 62, so as to ensure the stability of the connection between the two, realize the radial limitation of the extraction member body 1, prevent the second threaded rod 3 from driving the extraction member body 1 to rotate, and ensure that the second threaded rod 3 controls the extraction member body 1 to move along a preset path, thereby driving the metal seal 2 to move.

[0034] In a further optimized solution, the fixing portion 12 is provided with a second threaded hole 122 along the preset path direction, and the second threaded rod 3 is threadedly connected to the second threaded hole 122. When the embodiment is working, since the end of the second threaded rod 3 close to the claw portion 11 abuts against the pipe, and the abutment member radially limits the removal member body 1, the fixing portion 12 threadedly connected thereto moves along the preset path when the second threaded rod 3 rotates, thereby driving the metal seal 2 to move.

[0035] Preferably, a driving nut 31 is fixedly provided at one end of the second threaded rod 3 away from the pipe, and the second threaded rod 3 is rotated by rotating the driving nut, thereby driving the fixing portion 12 to move along a preset path.

[0036] Preferably, the clamping plate 112 is arranged perpendicularly to the cantilever 111, and the cantilever 111 abuts against the metal seal 2. In this embodiment, since the abutment is connected to the fixed portion 12 of the take-out body 1, and the abutment is not connected to the claw portion 11, the radial limiting effect of the abutment on the claw portion 11 is reduced. Therefore, the cantilever 111 abuts against the metal seal 2 to increase the contact surface between the two, thereby ensuring the radial limiting effect of the abutment on the claw portion 11; and the clamping plate 112 is arranged perpendicularly to the cantilever 111, thereby maximizing the contact surface between the clamping plate 112 and the metal seal 2, thereby ensuring the stability between the two during the process of the clamping plate 112 pushing the metal seal 2 to move.

[0037] For a further optimized solution, there are at least 3 sets of the extraction part body 1. Since in this embodiment, the extraction of the metal seal 2 at different positions is achieved by the cooperation of the extraction part body 1 and the second threaded rod 3, when the metal seal 2 moves between adjacent positions, the metal seal 2 between adjacent positions will be driven to move. Having at least 3 sets of the extraction part body 1 can reduce the difficulty of extracting the metal seal 2. This embodiment is applicable to pipelines with different pipe diameters. When the pipe diameter is small, the number of the extraction part bodies 1 can be 3, 4 or 5 sets. When the pipe diameter is large, the number of the extraction part bodies 1 can be 6, 7 or more sets to ensure that the metal seal 2 can be extracted.

[0038] The description of the above embodiments is only used to help understand the method and its core idea of the present invention. At the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

[0039] It should be understood that the term "and / or" used herein is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0040] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention.

[0041] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solution of the present invention should fall within the protection scope determined by the claims of the present invention.

Claims

1. A metal seal removal tool, wherein the metal seal is pressed against the inner wall of the pipe, characterized in that: include: A take-out assembly, the take-out assembly comprising a take-out piece body (1) and an abutment piece arranged on the take-out piece body (1), the take-out piece body (1) being provided with a plurality of groups and respectively connected to metal sealing pieces (2) in a detachable manner, and the take-out piece body (1) being arranged on a side of the metal sealing piece (2) away from the inner wall of the pipe, and based on the abutment piece abutting against the take-out piece body (1), the abutment piece applies a squeezing force directed toward the pipe to the take-out piece body (1); A drive assembly, the drive assembly comprising a second threaded rod (3), the second threaded rod (3) being threadedly connected to the removal piece body (1), and based on the rotation of the second threaded rod (3), the removal piece body (1) is controlled to move along a preset path, and the preset path is set along the axial direction of the pipeline.

2. The metal seal removal tool according to claim 1, characterized in that: The removal piece body (1) comprises a fixedly connected claw portion (11) and a fixing portion (12), wherein the claw portion (11) is detachably connected to the metal sealing piece (2), and the fixing portion (12) is threadedly connected to the second threaded rod (3).

3. The metal seal removal tool according to claim 2, characterized in that: The claw portion (11) comprises a cantilever (111), one end of the cantilever (111) close to the fixing portion (12) is fixedly connected to the fixing portion (12), and one end of the cantilever (111) away from the fixing portion (12) is fixedly provided with a clamping plate (112), and the clamping plate (112) is arranged on a side of the metal seal (2) away from the fixing portion (12).

4. The metal seal removal tool according to claim 3, characterized in that: The clamping plate (112) and the cantilever (111) are arranged vertically, and the cantilever (111) abuts against the metal sealing component (2).

5. The metal seal removal tool according to claim 2, characterized in that: The abutment member comprises: A support portion (4), the support portion (4) being arranged in the middle of all the removal member bodies (1); An abutment portion, one end of which is detachably connected to the support portion (4), and the other end of which is detachably connected to the fixing portion (12); the abutment portion is distributed along the radial direction of the pipeline.

6. The metal seal removal tool according to claim 5, characterized in that: The abutting portion is a first threaded rod (5), a first threaded hole (41) is provided on a side of the supporting portion (4) close to the first threaded rod (5), one end of the first threaded rod (5) is threadedly connected to the first threaded hole (41), and the other end of the first threaded rod (5) is detachably connected to the fixing portion (12).

7. The metal seal removal tool according to claim 6, characterized in that: The fixing portion (12) is provided with a first mounting hole (121), and the first mounting hole (121) is arranged along the radial direction of the pipeline; one end of the first threaded rod (5) close to the fixing portion (12) passes through the first mounting hole (121), and the first threaded rod (5) is threadedly connected with a first nut (61) and a second nut (62), and the first nut (61) and the second nut (62) are respectively arranged on two sides of the first mounting hole (121).

8. The metal seal removal tool according to claim 2, characterized in that: The fixing portion (12) is provided with a second threaded hole (122) along the direction of the preset path, and the second threaded rod (3) and the second threaded hole (122) are threadedly connected.

9. The metal seal removal tool according to claim 8, characterized in that: A driving nut (31) is fixedly provided at one end of the second threaded rod (3) facing away from the pipeline.

10. The metal seal removal tool according to claim 1, characterized in that: The removal piece body (1) is provided with no less than 3 groups.

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