Auxiliary tool for disassembling sealing ring

Abstract

The utility model discloses an auxiliary tool for disassembling a sealing ring, and relates to the technical field of auxiliary tools for disassembling, the auxiliary tool for disassembling the sealing ring comprises at least two pull rods, a connecting piece and a driving rod, the at least two pull rods are annularly distributed at equal intervals along the circumferential direction of the sealing ring; the first end of the pull rod is used for being mutually fixed with the sealing ring; the connecting piece is connected with the second ends of the at least two pull rods in a locking and sliding manner; the driving rod is positioned in the axial extension direction of the sealing ring; the driving rod is connected with the connecting piece, and the driving rod is used for applying acting force away from the direction of the equipment body to the connecting piece so as to drive the at least two pull rods to detach the sealing ring from the equipment body; a connecting rod assembly is arranged between each pull rod and the driving rod. According to the technical scheme provided by the utility model, the sealing ring can be conveniently detached from the equipment body.

Description

Technical Field

[0001] The utility model relates to the technical field of disassembly auxiliary tools, in particular to a sealing ring disassembly auxiliary tool. Background Art

[0002] Vacuum equipment such as vacuum coating machines have extremely high requirements for their vacuum degree, and the vacuum degree mainly depends on the sealing of the vacuum pump and the equipment itself. In order to ensure the sealing of the equipment itself, a sealing ring is usually set at the connection between the equipment body and the equipment accessories; common sealing rings such as graphite self-sealing rings are mainly made of expanded graphite by molding. They have various characteristics of expanded graphite and can withstand violent alternations of temperature and pressure. They are ideal fillers for various static sealing equipment such as vacuum equipment.

[0003] The long-term use of vacuum equipment will cause a certain degree of wear to the sealing ring, which needs to be replaced in time to ensure the sealing of the vacuum equipment. In the prior art, the disassembly process of the sealing ring mainly relies on the operator to use tools to fix the two opposite sides of the sealing ring respectively, and then exert force at the same time to pull the sealing ring upward from the equipment body; the disassembly process is extremely cumbersome, and the sealing ring and the equipment body are easily stuck, making it difficult to remove; the reasons for the sticking include uneven force on both sides of the sealing ring during the process of pulling it upward.

[0004] Based on the above reasons, there is an urgent need for an auxiliary tool that can facilitate the removal of the sealing ring from the equipment body.

[0005] It should be noted that the above contents are only used to assist in understanding the technical solution of the present utility model, and do not constitute an admission that the above contents are prior art. Utility Model Content

[0006] The main purpose of the utility model is to provide a sealing ring disassembly auxiliary tool, aiming to facilitate the disassembly of the sealing ring from the equipment body.

[0007] In order to achieve the above-mentioned purpose, the utility model proposes a sealing ring disassembly auxiliary tool, which is used to remove the sealing ring from the equipment body; the sealing ring disassembly auxiliary tool comprises:

[0008] At least two tie rods, at least two tie rods are distributed in an annular manner at equal distances along the circumference of the sealing ring; the first end of the tie rod is used to be fixed to the sealing ring;

[0009] A connecting piece, wherein the connecting piece is lockably and slidably connected to the second ends of at least two of the pull rods;

[0010] A driving rod, the driving rod is located in the axial extension direction of the sealing ring; the driving rod is connected to the connecting member, and the driving rod is used to apply a force to the connecting member in a direction away from the device body, so as to drive at least two of the pulling rods to remove the sealing ring from the device body;

[0011] Wherein, a connecting rod assembly is arranged between each of the pull rods and the driving rod, and the distance between each of the pull rods and the driving rod is made the same through the connecting rod assembly.

[0012] In one embodiment, a threaded section is provided in the middle portion of the driving rod, the driving rod is arranged through the connecting piece, and the driving rod is threadedly connected to the connecting piece through the threaded section; one end of the driving rod close to the sealing ring is used to abut against an abutment member, wherein the abutment member is installed at the connection between the device body and the device accessory, and at least part of the positive projection area of ​​the abutment member is located in the annular inner area of ​​the sealing ring; when the driving rod rotates relative to the connecting piece, the connecting piece moves away from the device body.

[0013] In one embodiment, an arc portion is provided at one end of the driving rod close to the sealing ring, and the arc portion is used to abut against the abutting member.

[0014] In one embodiment, a driving portion is provided at one end of the driving rod away from the sealing ring, and the driving portion is used for an operator to drive the driving rod to rotate relative to the connecting member; specifically, the driving portion adopts a hexagonal structure.

[0015] In one embodiment, the connecting rod assembly includes a sleeve member and a connecting rod member, wherein the sleeve member is slidably mounted on the outside of the driving rod; one end of the connecting rod member is rotatably connected to the pull rod, and the other end of the connecting rod member is rotatably connected to the sleeve member.

[0016] In one embodiment, each of the pull rods includes a first straight line segment and a second straight line segment, the first straight line segment and the second straight line segment are connected by a slanted line segment, and the first straight line segment is located on a side close to the connecting member; the first straight line segment and the second straight line segment are both arranged parallel to the axis of the sealing ring, and a first distance between the first straight line segment and the axis of the sealing ring is greater than a second distance between the second straight line segment and the axis of the sealing ring.

[0017] In one embodiment, a cross-sectional area of ​​the first straight line segment is greater than a cross-sectional area of ​​the second straight line segment.

[0018] In one embodiment, a hook-shaped member is provided at the first end of the pull rod, and the hook-shaped member is used to hook and fix the bottom of the sealing ring.

[0019] In one embodiment, the connecting member is provided with a plurality of sliding grooves, and the groove directions of the sliding grooves are extended along the radial direction of the sealing ring; the pull rod can slide along the sliding grooves.

[0020] In one embodiment, a threaded hole is provided at the second end of the pull rod; the sealing ring disassembly auxiliary tooling also includes a fixing bolt, which is used to pass through the sliding groove and be threadedly connected to the threaded hole to fix the pull rod and the connecting member to each other.

[0021] The technical solution of the utility model first slides at least two tie rods distributed in an annular manner at equal distances along the circumference of the sealing ring relative to the connecting piece to a suitable position so that the first end of the tie rod and the sealing ring are fixed to each other; then the second end of the tie rod is locked and fixed to the connecting piece to ensure that the position of the tie rod is relatively fixed during the disassembly process, thereby completing the fixed connection of the sealing ring; then the operator applies a force to the connecting piece in a direction away from the device body through the driving rod, and drives at least two tie rods through the force to remove the sealing ring from the device body. The above disassembly process is simple to operate and highly practical.

[0022] Furthermore, since at least two pull rods are distributed in an annular shape at equal distances along the circumference of the sealing ring, and the driving rod is located in the axial extension direction of the sealing ring, the force strength applied to each pull rod is consistent, that is, the force strength applied to each position of the sealing ring is consistent, thereby avoiding the sealing ring from getting stuck due to uneven force on both sides during the disassembly process, thereby facilitating the disassembly of the sealing ring from the equipment body and effectively improving the disassembly efficiency.

[0023] At the same time, in order to ensure that the driving rod is exactly located in the axial extension direction of the sealing ring after the position of the pull rod is adjusted, the utility model is provided with a connecting rod assembly between each pull rod and the driving rod, and the distance between each pull rod and the driving rod is made the same through the connecting rod assembly; it can be understood that since the distance between each pull rod and the driving rod is the same (the distance is equivalent to the radius length of the sealing ring), when each pull rod is located in the circumferential position of the sealing ring, the driving rod located in the middle of each pull rod is restricted by the connecting rod assembly and must be located in the axial extension direction of the sealing ring, thereby ensuring the smooth implementation of the technical solution of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A structural schematic diagram of an embodiment of a sealing ring disassembly auxiliary tool provided by the utility model;

[0026] Figure 2 The second structural schematic diagram of an embodiment of the sealing ring disassembly auxiliary tool provided by the utility model;

[0027] Figure 3 A three-dimensional structural diagram of an embodiment of a sealing ring disassembly auxiliary tool provided by the utility model (the connecting rod assembly is hidden);

[0028] Figure 4 A schematic diagram of the use status of an embodiment of the sealing ring disassembly auxiliary tool provided by the utility model (the arrow in the figure indicates the moving direction of the connecting piece).

[0029] Description of reference numerals:

[0030] 1. Pull rod; 101. First straight line segment; 102. Second straight line segment; 103. Oblique line segment; 104. Threaded hole; 105. Hook-shaped member; 3. Connecting member; 301. Sliding groove; 4. Driving rod; 401. Threaded segment; 402. Arc portion; 403. Driving portion; 5. Abutment member; 6. Fixing bolt; 7. Connecting rod assembly; 701. Sleeve member; 702. Connecting rod member; 10. Sealing ring; 20. Equipment body;

[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution in the utility model. Obviously, what is described is only a part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, it should be noted that the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0035] In the prior art, the disassembly process of the sealing ring mainly relies on the operator to use tools to fix the two opposite sides of the sealing ring respectively, and then exert force at the same time to pull the sealing ring upward from the equipment body; the disassembly process is extremely cumbersome, and the sealing ring and the equipment body are easily stuck, resulting in difficulty in removal; the reasons for the sticking include uneven force on both sides of the sealing ring during the process of pulling it upward.

[0036] In order to solve the above technical problems, the utility model provides a sealing ring disassembly auxiliary tool.

[0037] See also Figure 1-4 In one embodiment of the utility model, the sealing ring disassembly auxiliary tool is used to remove the sealing ring 10 from the equipment body 20; it can be understood that in addition to being applied to the sealing ring 10, the present application can also be applied to the removal of other annular structure parts, and this application will not elaborate on it.

[0038] The sealing ring disassembly auxiliary tooling includes:

[0039] At least two tie rods 1 are annularly distributed at equal distances along the circumference of the sealing ring 10; the first end of the tie rod 1 is used to be fixed to the sealing ring 10;

[0040] A connecting member 3, the connecting member 3 is lockably and slidably connected to the second ends of at least two pull rods 1;

[0041] A driving rod 4, the driving rod 4 is in the axial extension direction of the sealing ring 10; the driving rod 4 is connected to the connecting member 3, and the driving rod 4 is used to apply a force to the connecting member 3 in a direction away from the device body 20, so as to drive at least two pull rods 1 to remove the sealing ring 10 from the device body 20;

[0042] A connecting rod assembly 7 is provided between each pull rod 1 and the driving rod 4 , and the connecting rod assembly 7 is used to make the distance between each pull rod 1 and the driving rod 4 the same.

[0043] The technical solution of this embodiment first slides at least two tie rods 1 distributed in an annular manner with equal distances along the circumference of the sealing ring 10 relative to the connecting piece 3 to a suitable position, so that the first end of the tie rod 1 and the sealing ring 10 are fixed to each other, and then the second end of the tie rod 1 is locked and fixed to the connecting piece 3 to ensure that the position of the tie rod 1 is relatively fixed during the disassembly process, thereby completing the fixed connection of the sealing ring 10; then the operator applies a force to the connecting piece 3 away from the device body 20 through the driving rod 4, and drives at least two tie rods 1 through the force to remove the sealing ring 10 from the device body 20. The above disassembly process is simple to operate and highly practical.

[0044] Furthermore, since at least two tie rods 1 are distributed in an annular shape at equal distances along the circumference of the sealing ring 10, and the driving rod 4 is located in the axial extension direction of the sealing ring 10, the force strength exerted on each tie rod 1 is consistent, that is, the force strength exerted on each position of the sealing ring 10 is consistent, thereby avoiding the sealing ring 10 from getting stuck due to uneven force on both sides during the disassembly process, thereby facilitating the disassembly of the sealing ring 10 from the equipment body 20 and effectively improving the disassembly efficiency.

[0045] At the same time, in order to ensure that the driving rod 4 is located exactly in the axial extension direction of the sealing ring 10 after the position of the pull rod 1 is adjusted, the utility model is provided with a connecting rod assembly 7 between each pull rod 1 and the driving rod 4, and the connecting rod assembly 7 is used to make the distance between each pull rod 1 and the driving rod 4 the same; it can be understood that since the distance between each pull rod 1 and the driving rod 4 is the same (the distance is equivalent to the radius length of the sealing ring 10), when each pull rod 1 is located in the circumferential position of the sealing ring 10, the driving rod 4 located in the middle of each pull rod 1 is restricted by the connecting rod assembly 7, and it must be located in the axial extension direction of the sealing ring 10, thereby ensuring the smooth implementation of the technical solution of the utility model.

[0046] As a preferred solution of the above embodiment, as shown in the attached Figure 1-4 As shown, in the present embodiment, the number of the tie rods 1 is set to two, and the two tie rods 1 are respectively located on the left and right sides of the driving rod 4; in this way, the two tie rods 1 are respectively connected to the left and right sides of the sealing ring 10, and force is applied to them simultaneously to remove the sealing ring 10 from the equipment body 20, and the structure is simple and practical. At the same time, since it is mentioned above that at least two tie rods 1 are distributed in an annular shape at equal distances along the circumference of the sealing ring 10, the two tie rods 1 are respectively arranged at the two ends of the diameter of the sealing ring 10, that is, on the left and right sides of the driving rod 4. It should be noted that after understanding the technical solution of the present application, those skilled in the art can think of other setting numbers of tie rods 1 without creative labor, such as setting the tie rods 1 to three or four, etc., which should also fall within the scope of protection of the present application. For the convenience of description, the following description adopts the structure including two tie rods 1.

[0047] There are many structural forms of the driving rod 4. In the embodiment of the present utility model, as shown in the attached Figure 1-2 As shown, a threaded section 401 is provided in the middle of the driving rod 4, the driving rod 4 is penetrated and arranged in the connecting member 3, and the driving rod 4 is threadedly connected to the connecting member 3 through the threaded section 401; the end of the driving rod 4 close to the sealing ring 10 is used to abut against the abutment 5, wherein the abutment 5 is installed at the connection between the equipment body 20 and the equipment accessories, and at least part of the positive projection area of ​​the abutment 5 is located in the annular inner area of ​​the sealing ring 10; when the driving rod 4 rotates relative to the connecting member 3, the connecting member 3 moves away from the equipment body 20. In this arrangement, the abutment 5 is used as the fulcrum of the driving rod 3. Due to the threaded connection between the driving rod 4 and the connecting member 3, when the driving rod 4 rotates relative to the connecting member 3, the end of the driving rod 4 abuts against the abutment 5. In other words, the driving rod 4 cannot move in the direction close to the sealing ring 10 due to the obstruction of the abutment 5. Therefore, the connecting member 3 can only be driven to move in the direction away from the sealing ring 10; when the connecting member 3 moves, it also drives the pull rod 1 to move in the direction away from the sealing ring 10, thereby realizing the removal of the sealing ring 10 from the equipment body 20. The structure is simple and practical.

[0048] The abutment 5 can be selected according to the connection method between the device body 20 and the device accessories; for example, if the device body 20 and the device accessories are connected by thread, the abutment 5 can be selected as a part such as a bolt; this application does not impose specific restrictions on it. One point that needs to be noted is that the setting of the abutment 5 cannot hinder the movement of the pull rod 1 and the sealing ring 10. In order to facilitate the connection between the pull rod 1 and the sealing ring 10, in the actual operation process, the pull rod 1 and the sealing ring 10 can be fixedly connected first, and then the abutment 5 can be installed.

[0049] More specifically, the end of the driving rod 4 close to the sealing ring 10 is provided with a circular arc portion 402, and the circular arc portion 402 is used to abut against the abutting member 5. Such a configuration is made in consideration of the abutting contact between the driving rod 4 and the abutting member 5, in order to avoid scratching each other and affecting the service life of the product; in this embodiment, the end of the driving rod 4 close to the sealing ring 10, that is, the end of the driving rod 4 abutting against the abutting member 5, is provided with the circular arc portion 402 to ensure smooth contact between the two and reduce the probability of scratching.

[0050] More specifically, a driving portion 403 is provided at one end of the driving rod 4 away from the sealing ring 10, and the driving portion 403 is used for the operator to drive the driving rod 4 to rotate relative to the connecting member 3; in this way, in the actual operation process, the operator can rotate the driving rod 4 by manipulating the driving portion 403 of the driving rod 4, and the structure is simple and practical. In this embodiment, the driving portion 403 adopts a hexagonal structure, so that an auxiliary tool such as a wrench can be connected to the driving rod 4 through the driving portion 403, and the driving rod 4 can be driven to rotate in a more labor-saving manner, thereby further improving the disassembly efficiency of the sealing ring 10.

[0051] There are many structural forms of the connecting rod assembly 7. In the embodiment of the present utility model, as shown in the attached Figure 1-2 As shown, the connecting rod assembly 7 includes a sleeve member 701 and a connecting rod member 702. The sleeve member 701 is slidably mounted on the outside of the driving rod 4. One end of the connecting rod member 702 is rotationally connected to the pull rod 1, and the other end of the connecting rod member 702 is rotationally connected to the sleeve member 701. In this arrangement, when one of the pull rods 1 is slid to connect it with the sealing ring 10, the connecting rod member 702 connected to the pull rod 1 is pulled by the pull rod 1, which drives the sleeve member 701 to move up and down along the driving rod 4. In the process of the sleeve member 701 moving up and down, the remaining pull rods 1 are driven to perform corresponding sliding movements by the remaining connecting rod members 702. In other words, when one of the pull rods 1 is slid, the other pull rods 1 can be driven to slide at the same time, which helps to improve the installation efficiency between multiple pull rods 1 and the sealing ring 10. As shown in the attached figure Figure 1-2 The initial state is as shown in the attached Figure 1 As shown in FIG. 1 , when the pull rod 1 on the left side is driven to slide away from the driving rod 4, the pull rod 1 on the right side is pulled by the connecting rod assembly 7 and slides away from the driving rod 4 accordingly. During this period, the sleeve member 701 moves upward along the driving rod 4, thereby forming an attachment Figure 2 At the same time, since the distance between each tie rod 1 and the driving rod 4 is the same (the distance is equivalent to the radius length of the sealing ring 10), when each tie rod 1 is located at the circumferential position of the sealing ring 10, the driving rod 4 located in the middle of each tie rod 1 must be located in the axial extension direction of the sealing ring 10 due to the restriction of the connecting rod assembly 7, thereby ensuring the smooth implementation of the technical solution of the utility model.

[0052] There are many structural forms of the above-mentioned pull rod 1. In the embodiment of the present utility model, as shown in the attached Figure 3-4As shown, each tie rod 1 includes a first straight segment 101 and a second straight segment 102, the first straight segment 101 and the second straight segment 102 are connected by an oblique segment 103, and the first straight segment 101 is located on the side close to the connecting member 3; the first straight segment 101 and the second straight segment 102 are both arranged parallel to the axis of the sealing ring 10, and the first spacing between the first straight segment 101 and the axis of the sealing ring 10 is greater than the second spacing between the second straight segment 102 and the axis of the sealing ring 10. In this arrangement, considering that the setting of the abutment 5 will occupy a certain space above the sealing ring 10, the tie rod 1 is arranged as the first straight segment 101 and the second straight segment 102 in this embodiment, the first straight segment 101 is located on the side close to the connecting member 3, and the first spacing between the first straight segment 101 and the axis of the sealing ring 10 is greater than the second spacing between the second straight segment 102 and the axis of the sealing ring 10, that is, the spacing between the first straight segments 101 located above the sealing ring 10 is as large as possible, so as to facilitate the installation of the abutment 5.

[0053] More specifically, the cross-sectional area of ​​the first straight segment 101 is greater than the cross-sectional area of ​​the second straight segment 102. With this arrangement, the second straight segment 102 with a smaller cross-sectional area can be easily inserted into the interior of the device body 20 to fix the sealing ring 10, thereby ensuring that the technical solution of the present application can be smoothly implemented. It is understandable that if the cross-sectional area of ​​the second straight segment 102 is too large and it cannot be inserted into the interior of the device body 20 to fix the sealing ring 10, the technical solution of the present application cannot be smoothly implemented.

[0054] More specifically, a hook-shaped member 105 is provided at the first end of the pull rod 1, and the hook-shaped member 105 is used to hook and fix the bottom of the sealing ring 10. In this way, the bottom of the sealing ring 10 is hooked and fixed by the hook-shaped member 105, and when the pull rod 1 moves away from the device body 20, the sealing ring 10 can be pulled out of the device body 20, which has a simple structure and strong practicality.

[0055] As a preferred solution of the above embodiment, as shown in the attached Figure 3As shown, the connecting member 3 is provided with a plurality of sliding grooves 301, and the groove direction of the sliding grooves 301 is extended along the radial direction of the sealing ring 10; the pull rod 1 can slide along the sliding grooves 301. In this way, the pull rod 1 slides along the sliding grooves 301 in the radial direction of the sealing ring 10, so that the product can be applied to sealing rings 10 with different apertures, thereby improving the applicability of the product. It can be understood that if the aperture of the sealing ring 10 is small, the pull rod 1 is driven to move toward the middle of the connecting member 3 in the sliding grooves 301, so that the distance between the two pull rods 1 is reduced to adapt to the sealing ring 10 with a small aperture; if the aperture of the sealing ring 10 is large, the pull rod 1 is driven to move toward the end of the connecting member 3 in the sliding grooves 301, so that the distance between the two pull rods 1 is increased to adapt to the sealing ring 10 with a large aperture. After moving to a suitable position, the pull rod 1 and the connecting member 3 are fixed to each other.

[0056] More specifically, the second end of the tie rod 1 is provided with a threaded hole 104; the sealing ring disassembly auxiliary tooling also includes a fixing bolt 6, which is used to pass through the sliding groove 301 and be threadedly connected with the threaded hole 104 to fix the tie rod 1 and the connecting member 3 to each other. In this way, after the tie rod 1 slides along the sliding groove 301 to a suitable position, the fixing bolt 6 and the threaded hole 104 cooperate with each other to achieve the fixation of the tie rod 1 and the connecting member 3, and the structure is simple and practical.

[0057] It should be noted that other contents of the sealing ring disassembly auxiliary tooling disclosed in the present utility model are prior art and will not be described in detail here.

[0058] The above are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any direct / indirect application of the present invention in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A sealing ring disassembly auxiliary tool, used to remove the sealing ring from the equipment body; characterized in that: The sealing ring disassembly auxiliary tooling comprises: At least two tie rods, at least two tie rods are distributed in an annular manner at equal distances along the circumference of the sealing ring; the first end of the tie rod is used to be fixed to the sealing ring; A connecting piece, wherein the connecting piece is lockably and slidably connected to the second ends of at least two of the pull rods; A driving rod, the driving rod is located in the axial extension direction of the sealing ring; the driving rod is connected to the connecting member, and the driving rod is used to apply a force to the connecting member in a direction away from the device body, so as to drive at least two of the pulling rods to remove the sealing ring from the device body; Wherein, a connecting rod assembly is arranged between each of the pull rods and the driving rod, and the distance between each of the pull rods and the driving rod is made the same through the connecting rod assembly.

2. The sealing ring disassembly auxiliary tool as claimed in claim 1, characterized in that: A threaded section is provided in the middle of the driving rod, the driving rod is penetrated by the connecting piece, and the driving rod is threadedly connected to the connecting piece through the threaded section; one end of the driving rod close to the sealing ring is used to abut against an abutment member, wherein the abutment member is installed at the connection between the device body and the device accessory, and at least part of the positive projection area of ​​the abutment member is located in the annular inner area of ​​the sealing ring; when the driving rod rotates relative to the connecting piece, the connecting piece moves away from the device body.

3. The sealing ring disassembly auxiliary tool as claimed in claim 2, characterized in that: An arc portion is provided at one end of the driving rod close to the sealing ring, and the arc portion is used to abut against the abutting member.

4. The sealing ring disassembly auxiliary tool as claimed in claim 2, characterized in that: A driving part is provided at one end of the driving rod away from the sealing ring, and the driving part is used for an operator to drive the driving rod to rotate relative to the connecting member; specifically, the driving part adopts a hexagonal structure.

5. The sealing ring disassembly auxiliary tool as claimed in claim 1, characterized in that: The connecting rod assembly includes a sleeve member and a connecting rod member, wherein the sleeve member is slidably mounted on the outer side of the driving rod; one end of the connecting rod member is rotatably connected to the pull rod, and the other end of the connecting rod member is rotatably connected to the sleeve member.

6. The sealing ring disassembly auxiliary tool as claimed in claim 1, characterized in that: Each of the pull rods includes a first straight line segment and a second straight line segment, the first straight line segment and the second straight line segment are connected by an oblique line segment, and the first straight line segment is located on a side close to the connecting member; the first straight line segment and the second straight line segment are both arranged parallel to the axis of the sealing ring, and a first distance between the first straight line segment and the axis of the sealing ring is greater than a second distance between the second straight line segment and the axis of the sealing ring.

7. The sealing ring disassembly auxiliary tool as claimed in claim 6, characterized in that: A cross-sectional area of ​​the first straight line segment is greater than a cross-sectional area of ​​the second straight line segment.

8. The sealing ring disassembly auxiliary tool as claimed in claim 1, characterized in that: A hook-shaped piece is provided at the first end of the pull rod, and the hook-shaped piece is used to hook and fix the bottom of the sealing ring.

9. The sealing ring disassembly auxiliary tool as claimed in claim 1, characterized in that: The connecting piece is provided with a plurality of sliding grooves, and the groove direction of the sliding grooves is extended along the radial direction of the sealing ring; the pull rod can slide along the sliding grooves.

10. The sealing ring disassembly auxiliary tool as claimed in claim 9, characterized in that: The second end of the pull rod is provided with a threaded hole; the sealing ring disassembly auxiliary tooling also includes a fixing bolt, which is used to pass through the sliding groove and be threadedly connected with the threaded hole to fix the pull rod and the connecting piece to each other.

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