CN213034538U

CN213034538U - Disassembling tool and switch tie bolt sleeve disassembling system

Info

Publication number: CN213034538U
Application number: CN202021454241.0U
Authority: CN
Inventors: 石江; 张宁; 张丽伟
Original assignee: Shuohuang Railway Development Co Ltd
Current assignee: Shuohuang Railway Development Co Ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-04-23
Anticipated expiration: 2030-07-22

Abstract

The utility model relates to a extracting tool and switch tie bolt cover dismantlement system, extracting tool include connecting piece and fixed lid. The connecting piece is provided with a first thread. The fixed cover is sleeved on the connecting piece, a first buckling position is arranged on the fixed cover, and a twisting part is arranged on the fixed cover. In the bolt sleeve dismounting process, one end of the connecting piece is connected in the bolt sleeve in a threaded mode through the first threads, the inside of the bolt sleeve is supported, the structural strength of the inner cavity of the bolt sleeve is improved, the bolt sleeve is prevented from being damaged easily due to overlarge torsion, and the bolt sleeve can be dismounted completely by an overhaul worker. After the connecting piece is screwed, the fixing cover is sleeved on the connecting piece, and the first buckling position is buckled on the second buckling position; and finally, matching a wrench on the screwing part, screwing the fixing cover so that the bolt sleeve and the fixing cover rotate together, and taking down the bolt sleeve. Because the fixing cover is sleeved on the connecting piece all the time in the screwing process, the fixing cover is not easy to fall off in the operation process, and the dismounting operation of the bolt sleeve is facilitated.

Description

Disassembling tool and switch tie bolt sleeve disassembling system

Technical Field

The utility model relates to a railway engineering technical field especially relates to extracting tool and switch tie bolt cover dismantlement system.

Background

During railway maintenance operations, it is generally necessary to inspect the connecting components, such as: bolts, nuts, bolt sleeves, and the like. When the connecting part is worn or loosened, the connecting part needs to be replaced in time so as to ensure the normal operation of the railway. However, when the connecting member is replaced, it is difficult to remove the connecting member, such as a bolt bushing on the switch tie. The switch tie and the iron base plate are usually connected by adopting the matching of bolts and bolt sleeves, the bolt sleeves are easy to damage along with the increase of the relative movement amount between the iron base plate and the switch tie, and the damaged bolt sleeves are difficult to detach by the traditional tool, and even further the bolt sleeves are clamped, so that the railway maintenance efficiency is seriously reduced.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a disassembling tool and a switch tie bolt sleeve disassembling system, so that the bolt sleeve can be conveniently and completely disassembled, and the railway retrieval efficiency is improved.

A removal tool, the removal tool comprising: the connecting piece is provided with a first thread, and the first thread is used for being screwed in the bolt sleeve; the fixed cover is sleeved on the connecting piece, a first buckling position is arranged on the fixed cover and used for being matched with a second buckling position on the bolt sleeve in a buckling mode, a screwing portion is arranged on the fixed cover and used for being matched with a wrench in a screwing mode.

Foretell extracting tool dismantles the in-process at the bolt cover, through first screw thread, with connecting piece one end spiro union in the bolt cover, supports the inside of bolt cover, improves the inner chamber structural strength of bolt cover, avoids the bolt cover to demolish the in-process because of torsion is too big easy damaged for the maintainer can be complete demolishs the bolt cover is complete. After the connecting piece is screwed, the fixing cover is sleeved on the connecting piece, and the first buckling position is buckled on the second buckling position; and finally, matching a wrench on the screwing part, screwing the fixing cover so that the bolt sleeve and the fixing cover rotate together, and taking down the bolt sleeve. Because the fixing cover is sleeved on the connecting piece all the time in the screwing process, the fixing cover is not easy to fall off in the operation process, and the dismounting operation of the bolt sleeve is facilitated.

In one embodiment, the number of the first buckling positions is at least two, and at least two first buckling positions are arranged on the fixed cover at intervals.

In one embodiment, the fixing cover is provided with a first abutting surface, the first abutting surface is used for abutting against the bolt sleeve, and the first buckling position is arranged on the first abutting surface.

In one embodiment, the disassembling tool further comprises a pressing member sleeved on the connecting member, and the pressing member is used for pressing the fixing cover on the bolt sleeve.

In one embodiment, the connecting piece is further provided with a second thread, the pressing piece is provided with a third thread matched with the second thread, and the pressing piece abuts against the fixing cover through matching of the third thread and the second thread.

In one embodiment, a second abutting surface is arranged on the fixing cover, and the pressing piece abuts against the second abutting surface.

In one embodiment, the connecting piece is further provided with a transition part, the transition part is located between the first thread and the second thread, and the fixing cover is sleeved on the transition part.

In one embodiment, the thickness h of the fixing cover₁With the thickness h of the pressing member₂Greater than the width w of the transition.

In one embodiment, the first fastening position is a protrusion.

The utility model provides a switch tie bolt cover dismantlement system, includes bolt cover and above arbitrary one the extracting tool, first screw thread spiro union is in the bolt cover, be equipped with the second on the bolt cover and detain the position, the second detain the position with first knot position buckle cooperation.

Foretell switch pillow bolt cover dismantlement system adopts above extracting tool, dismantles the in-process at the bolt cover, through first screw thread, with connecting piece one end spiro union in the bolt cover, supports the inside of bolt cover, improves the inner chamber structural strength of bolt cover, avoids the bolt cover to demolish the in-process because of torsion is too big easy damaged for the maintainer can be complete demolishs the bolt cover completely. After the connecting piece is screwed, the fixing cover is sleeved on the connecting piece, and the first buckling position is buckled on the second buckling position; and finally, matching a wrench on the screwing part, screwing the fixing cover so that the bolt sleeve and the fixing cover rotate together, and taking down the bolt sleeve. Because the fixing cover is sleeved on the connecting piece all the time in the screwing process, the fixing cover is not easy to fall off in the operation process, and the dismounting operation of the bolt sleeve is facilitated.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of a removal tool according to one embodiment;

fig. 2 is a schematic structural view of the disassembly tool after the pressing piece is unscrewed in one embodiment.

100. The dismounting tool comprises a dismounting tool body 110, a connecting piece 111, a first thread, 112, a second thread, 113, a transition portion, 120, a fixing cover, 121, a first buckling position, 122, a screwing portion, 123, a first interference surface, 124, a second interference surface, 130 and a pressing piece.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In one embodiment, referring to fig. 1, a removal tool 100, the removal tool 100 includes a connecting member 110 and a fixing cap 120. The connecting member 110 is provided with a first thread 111. The first thread 111 is intended to be screwed into a bolt sleeve. The fixing cover 120 is disposed on the connecting member 110, and the fixing cover 120 is provided with a first fastening position 121. The first snap-fit location 121 is adapted to snap-fit with a second snap-fit location on the bolt sleeve. The fixing cap 120 is provided with a screwing portion 122. The driving portion 122 is adapted to cooperate with a wrench.

The dismounting tool 100 is used for supporting the inside of the bolt sleeve by screwing one end of the connecting piece 110 into the bolt sleeve through the first thread 111 in the dismounting process of the bolt sleeve, so that the structural strength of the inner cavity of the bolt sleeve is improved, the bolt sleeve is prevented from being damaged easily due to overlarge torsion in the dismounting process, and a maintainer can completely dismount the bolt sleeve. After the connecting piece 110 is screwed, the fixing cover 120 is sleeved on the connecting piece 110, and the first buckling position 121 is buckled on the second buckling position; finally, a wrench is fitted on the screwing portion 122, the fixing cap 120 is screwed so that the bolt housing is rotated together with the fixing cap 120, and the bolt housing is removed. Since the fixing cap 120 is always sleeved on the connecting member 110 during screwing, the fixing cap 120 is not easy to fall off during operation, so that the bolt sleeve can be conveniently removed.

It should be noted that the engagement of the driving portion 122 and the wrench should be understood as follows: the bayonet of the wrench can be clamped on the screwing part 122, and the wrench can be rotated to drive the fixing cover 120 to rotate. The screwing part 122 may have a quadrilateral structure, a pentagonal structure, a hexagonal structure, or another polygonal structure. Of course, the screwing part 122 of the present embodiment may be rotated by hand.

It should be further noted that the fixing cover 120 is sleeved on the connecting member 110 in two states: firstly, the fixed cover 120 is sleeved on the connecting piece 110 and cannot drive the connecting piece 110 to rotate together; second, the fixed cover 120 is sleeved on the connection, and can drive the connection to rotate together. When the fixing cover 120 is sleeved on the connecting member 110 and can drive the connecting member 110 to rotate together, the fixing cover 120 is rotated, and the fixing cover 120 can transmit torque to the bolt sleeve through the first thread 111 on the connecting member 110 in addition to transmitting torque to the bolt sleeve through the matching of the first fastening position 121 and the second fastening position, so that the torque transmission between the fixing cover 120 and the bolt sleeve is effectively improved, and the bolt sleeve is easier to detach.

Specifically, referring to fig. 1, when the fixing cover 120 is disposed on the connecting member 110, the inner side of the fixing cover 120 is in limited fit with the surface of the connecting member 110. Thus, when the fixing cap 120 is rotated by the wrench, the connecting member 110 is rotated by the rotating fixing cap 120 because the inner side of the fixing cap 120 is restricted and engaged with the surface of the connecting member 110. To achieve a limited fit between the two, the inner side of the fastening can be designed as a non-circular or profiled bore, and the surface of the connecting element 110 as a non-circular or profiled shaft.

Optionally, the first fastening position 121 is a protrusion, and the second fastening position is a recess; alternatively, the first buckling position 121 is a concave part, and the second buckling position is a convex part.

Specifically, referring to fig. 1, the first buckling portion 121 is a protrusion, and the second buckling portion is a recess. During disassembly, the fixing cap 120 is fitted over the connector 110, and the fixing cap 120 is slid over the connector 110 toward the bolt housing so that the protrusion is inserted into the recess.

The first fastening portion 121 may be connected to the fixing cover 120 by welding, bolting, or integrally molding. The integral forming mode is casting, die casting, forging, extruding, forging and the like. In addition, in the dismounting process, if no concave part exists on the bolt sleeve, the electric drill tool can be used for drilling holes in the position corresponding to the bolt sleeve.

Further, referring to fig. 1, there are at least two first fastening positions 121. At least two first knot positions 121 are arranged on the fixed cover 120 at intervals, so that the number of the first knot positions 121 is increased on the fixed cover 120, the bonding strength between the fixed cover 120 and the bolt sleeve is effectively improved, the stable transmission of the torsion between the fixed cover 120 and the bolt sleeve is ensured, and the bolt sleeve is stably dismounted.

Specifically, referring to fig. 1, two first fastening positions 121 and two second fastening positions are provided, and the two first fastening positions 121 are disposed on the fixing cover 120 at intervals. The two second buckling positions are arranged on the bolt sleeve at intervals, and the first buckling positions 121 and the second buckling positions are distributed in a one-to-one corresponding mode.

In one embodiment, referring to fig. 1, the fixing cover 120 is provided with a first abutting surface 123. The first abutting surface 123 is used for abutting against the bolt sleeve. The first fastening portion 121 is disposed on the first abutting surface 123. Therefore, when the fixing cover 120 is sleeved on the connecting member 110, the first fastening portion 121 is fastened to the second fastening portion, and the first contact surface 123 contacts against the bolt sleeve, so that the fixing cover 120 and the bolt sleeve are more tightly fitted, and the fixing cover 120 can more stably drive the bolt sleeve to rotate, thereby further stably detaching the bolt sleeve.

Specifically, referring to fig. 1, the first abutting surface 123 is disposed on a side surface of the fixing cover 120 facing the bolt sleeve, and the first abutting surface 123 is an annular surface.

In one embodiment, referring to fig. 1, the detaching tool 100 further includes a pressing member 130 sleeved on the connecting member 110. The pressing member 130 is used to press the fixing cap 120 against the bolt housing. Therefore, when the fixing cover 120 is fastened on the bolt sleeve through the first fastening position 121, the pressing member 130 is sleeved on the connecting member 110, and the fixing cover 120 is pressed on the bolt sleeve through the pressing member 130, so that the combining force between the fixing cover 120 and the bolt sleeve is greater, the fixing cover 120 drives the bolt sleeve to rotate together more easily, and the bolt sleeve is more stably and conveniently detached.

It should be noted that, the sleeve-connection of the pressing member 130 on the connecting member 110 in this embodiment should be understood as follows: the pressing member 130 is sleeved on the connecting member 110, and the pressing member 130 is connected to the connecting member 110. The sleeving manner of the pressing member 130 on the connecting member 110 may be: screw connection, clip connection, pin connection, or the like.

Further, referring to fig. 1, the connecting member 110 is further provided with a second thread 112. The pressing member 130 is provided with a third thread engaged with the second thread 112. The pressing member 130 abuts on the fixing cap 120 by the third screw thread engaged with the second screw thread 112. In the process of removing the bolt sleeve, when the fixing cover 120 is buckled on the bolt sleeve through the first buckling position 121 and the second buckling position in a matched manner, the pressing member 130 is sleeved on the connecting member 110 and is screwed on the connecting member 110; then, the pressing member 130 is rotated, so that the pressing member 130 is drawn toward the fixing cover 120, and the pressing member 130 abuts against the fixing cover 120. Because fixed lid 120 one side is the bolt cover, consequently, along with compressing tightly the rotation of piece 130, the fixed lid 120 is the bigger on the bolt cover to compress tightly the dynamics, and the combination dynamics between fixed lid 120 and the bolt cover also becomes thereupon for torque transmission between the two is more smooth, effectively avoids the torque transmission between fixed lid 120 and the bolt cover to be accomplished by first knot position 121 and second knot position alone, like this, makes demolising of bolt cover more stable. Meanwhile, when the pressing member 130 abuts against the fixing cap 120, there is a large static frictional resistance therebetween, and the pressing member 130 is pressed to rotate together when the fixing cap 120 rotates by virtue of the frictional resistance. Because compress tightly between 130 and the connecting piece 110 through threaded connection, consequently, compress tightly 130 when rotating along with fixed lid 120, also can drive connecting piece 110 and rotate together, so, in the bolt bush demolishs the in-process, compress tightly 130, fixed lid 120 and connecting piece 110 three rotate as a whole, at this moment, except receiving the torsion transmission on fixed lid 120 on the bolt bush, but also receive the torsion transmission of connecting piece 110, so, the rotatory dynamics of bolt bush has been improved greatly, thereby make the bolt bush realize easily demolishing.

It should be noted that the pressing member 130 can be sleeved on the connecting member 110, which means that the third thread is an internal thread, and the second threads 112 are external threads. Similarly, one end of the connecting member 110 is screwed into the bolt sleeve, which means that the first thread 111 is also an external thread.

Specifically, referring to fig. 1, the pressing member 130 is a nut or a nut.

In one embodiment, referring to fig. 1, the fixing cover 120 is provided with a second interference surface 124. The pressing member 130 abuts against the second abutting surface 124. When the fixing cover 120 is snapped on the bolt sleeve, the pressing member 130 is sleeved on the connecting member 110, so that the pressing member 130 abuts against the second abutting surface 124. Thus, the second abutting surface 124 is arranged on the fixed cover 120, so that tight press fit between the pressing piece 130 and the fixed cover 120 is ensured, when the fixed cover 120 rotates, the pressing piece 130 and the connecting piece 110 can be driven to rotate together by the maximum force, and the bolt sleeve is ensured to be detached more easily.

Specifically, referring to fig. 1, the second interference surface 124 is disposed on a side surface of the fixing cover 120 facing the pressing member 130. Meanwhile, the second interference surface 124 and the first interference surface 123 are respectively located on two opposite sides of the fixed cover 120. Further, the second interference surface 124 is an annular surface.

In one embodiment, referring to fig. 2, the connecting member 110 is further provided with a transition portion 113. The transition portion 113 is located between the first thread 111 and the second thread 112, and the fixing cap 120 is sleeved on the transition portion 113. Therefore, the connecting member 110 of the present embodiment has three parts: a threaded structure at both ends and a non-threaded region in the middle. During the dismantling process, the first thread 111 is screwed in the bolt sleeve; then, the fixed cover 120 is sleeved on the transition part 113 of the connecting piece 110, so that the fixed cover 120 is buckled on the bolt sleeve; then, the pressing member 130 is screwed on the second thread 112, and the pressing member 130 is abutted against the fixing cap 120, so that the fixing cap 120 is pressed on the bolt sleeve; finally, the wrench is turned by being caught on the screwing portion 122, so that the fixing cap 120, the connecting member 110 and the bolt housing are rotated together, and the bolt housing is removed. Meanwhile, when the connecting piece 110 is screwed in the bolt sleeve, the maintainer can clamp the transition part 113 through a wrench and rotate the wrench, so that the connecting piece 110 is stably screwed in the bolt sleeve, and the situation that the thread is easily damaged due to direct clamping on the thread is avoided. Furthermore, the service person can also exert a force on the transition 113 during the separation of the connection piece 110 from the bolt sleeve.

It should be noted that the transition portion 113 is an unthreaded area and is located between the first thread 111 and the second thread 112. The transition portion 113 is disposed around the axial direction of the connection member 110. Meanwhile, the present embodiment does not specifically limit the appearance shape of the transition portion 113, and only needs to satisfy that the fixing cover 120 can be sleeved on the transition portion 113. Such as: the transition part 113 is cylindrical, and a circular hole is formed in the fixing cover 120, that is, the fixing cover 120 is an annular structure; alternatively, the transition portion 113 has a non-circular cross-section such as an ellipse, a triangle, a quadrangle, or a pentagon, and in this case, the fixing cover 120 has a hole with a corresponding shape. When the cross section of the transition portion is a non-circular structure, and the fixing cover 120 is sleeved into the transition portion 113, the fixing cover 120 rotates to drive the connecting member 110 to rotate together, so that the stress between the first buckling position 121 and the second buckling position can be dispersed, and the bolt sleeve can be detached more stably.

Further, referring to fig. 2, the thickness h of the fixing cover 120₁With the thickness h of the hold-down member 130₂Greater than the width w of the transition 113. In this embodiment, the size relationship among the fixing cap 120, the pressing member 130 and the transition portion 113 is reasonably controlled, and when the fixing cap 120 is sleeved on the transition portion 113 and abuts against the bolt sleeve, the pressing member 130 is screwed on the second thread 112 and abuts against the fixing cap 120. Due to the thickness h of the fixing cover 120₁With the thickness h of the hold-down member 130₂Greater than the width w of transition portion 113, consequently, the fixed lid 120 of equipment can cover transition portion 113 with pressing member 130 completely to pressing member 130 partly can also be used in on second screw thread 112, like this, guarantee to press member 130 and can compress tightly fixed lid 120 on the bolt cover through the screw thread power, thereby make to have bigger cohesion between fixed lid 120 and the bolt cover, improved the transmission effect of fixed lid 120 to the bolt cover greatly.

In one embodiment, referring to fig. 1, a switch tie bolt bushing removal system includes a bolt bushing and the removal tool 100 of any of the above embodiments. The first thread 111 is screwed into the bolt housing. And a second buckling position is arranged on the bolt sleeve. The second snap-fit location is snap-fit with the first snap-fit location 121.

Foretell switch pillow bolt cover dismantlement system adopts above extracting tool 100, and at the bolt cover dismantlement in-process, through first screw thread 111, with connecting piece 110 one end spiro union in the bolt cover, the inside of support bolt cover improves the inner chamber structural strength of bolt cover, avoids the bolt cover to demolish the in-process because of torsion is too big easy damaged for the maintainer can be complete demolishs the bolt cover completely. After the connecting piece 110 is screwed, the fixing cover 120 is sleeved on the connecting piece 110, and the first buckling position 121 is buckled on the second buckling position; finally, a wrench is fitted on the screwing portion 122, the fixing cap 120 is screwed so that the bolt housing is rotated together with the fixing cap 120, and the bolt housing is removed. Since the fixing cap 120 is always sleeved on the connecting member 110 during screwing, the fixing cap 120 is not easy to fall off during operation, so that the bolt sleeve can be conveniently removed.

It should be noted that the bolt sleeve of the embodiment is a nylon sleeve, and is mainly used for connecting the switch tie and the iron base plate, and in the connecting process, the bolt is matched with the bolt sleeve, so that the switch tie and the iron base plate are stably connected. In addition, the wrench of the present embodiment is a socket wrench, a torque wrench, a monkey wrench, a fixed wrench, or the like.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or obliquely above the second feature, or may simply mean that the horizontal thickness of the first feature is greater than that of the second feature. A first feature "under," "below," and "beneath" a second feature may be directly or obliquely under the first feature or may simply mean that the first feature is less horizontally thick than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims

1. A removal tool, characterized in that the removal tool comprises:

the connecting piece is provided with a first thread, and the first thread is used for being screwed in the bolt sleeve;

the fixed cover is sleeved on the connecting piece, a first buckling position is arranged on the fixed cover and used for being matched with a second buckling position on the bolt sleeve in a buckling mode, a screwing portion is arranged on the fixed cover and used for being matched with a wrench in a screwing mode.

2. The removal tool of claim 1, wherein the number of first snap locations is at least two, and at least two of the first snap locations are spaced apart on the stationary cover.

3. The removal tool as claimed in claim 1, wherein the fixing cover has a first abutting surface for abutting against the bolt sleeve, and the first fastening portion is disposed on the first abutting surface.

4. The removal tool of claim 1, further comprising a compression member sleeved on the connector, wherein the compression member is used for compressing the fixing cover on the bolt sleeve.

5. The removal tool of claim 4, wherein the connecting member further comprises a second thread, the pressing member further comprises a third thread engaged with the second thread, and the pressing member abuts against the fixing cap through engagement of the third thread with the second thread.

6. The removal tool of claim 5, wherein the retaining cap has a second interference surface against which the pressing member interferes.

7. The removal tool of claim 5, wherein the connector further comprises a transition portion, the transition portion is located between the first thread and the second thread, and the retaining cap is sleeved on the transition portion.

8. The removal tool of claim 7, wherein the thickness h of the securing cap₁With the thickness h of the pressing member₂Greater than the width w of the transition.

9. The removal tool of any one of claims 1-8, wherein the first catch is a protrusion.

10. A switch tie bolt sleeve dismounting system, characterized in that, the dismounting tool of any one of claims 1-9 is included, the first thread is screwed in the bolt sleeve, the bolt sleeve is provided with a second fastening position, and the second fastening position is in snap fit with the first fastening position.