Protective sub-tube disassembly and assembly device

Abstract

The present invention relates to a protective sub-tube disassembly and assembly device, comprising a cutting assembly and an expansion assembly, wherein the cutting assembly is used to cut the tube wall of the protective sub-tube to form an opening in the protective sub-tube. The expansion assembly comprises a main body, an expansion member and an adjustment member. When the main body moves toward the side where the cutting assembly is located, the expansion member can open the opening of the protective sub-tube. The adjustment member is movably connected to the main body and is used to adjust the expansion size of the expansion member relative to the main body in a direction perpendicular to the movement of the main body. The above-mentioned expansion and fixing of the opening of the protective sub-tube by the expansion member can meet the need for inspection and maintenance of the optical cable in the protective sub-tube on the one hand, and avoid the fingers of the operator being pinched by inserting them into the opening on the other hand; based on the adjustment member, the expansion size of the expansion member can be adjusted, and the opening width of the expanded protective sub-tube can be further adjusted, so that the protective sub-tube disassembly and assembly device is suitable for optical cables of different specifications.

Description

Technical Field

[0001] The present invention relates to the technical field of optical cables, in particular to a protective sub-tube disassembly and assembly device. Background Art

[0002] With the development of optical cable technology, it is necessary to inspect and maintain optical cable lines. In cable wells and some special sections, protective sub-tubes are used to protect optical cables. When inspecting and maintaining optical cable lines, the protective sub-tubes need to be disassembled and installed.

[0003] However, traditional disassembly and assembly operations can easily cause people to be pinched and injured. Summary of the Invention

[0004] Based on this, it is necessary to provide a protective sub-tube disassembly and assembly device to address the problem that people may be easily pinched during the disassembly and assembly of the protective sub-tube.

[0005] A protective sub-tube disassembly and assembly device, comprising:

[0006] A notch assembly, the notch assembly being used to notch the wall of the protection sub-tube to form an opening in the protection sub-tube;

[0007] The expansion component includes a main body, an expansion piece and an adjustment piece. The main body is connected to the incision component, and the expansion piece is movably connected to the main body. When the main body moves toward the side where the incision component is located, the expansion piece can open the opening cut by the incision component on the protective sub-tube. The adjustment piece is movably connected to the main body and is used to adjust the expansion size of the expansion piece relative to the main body in a direction perpendicular to the movement of the main body.

[0008] In one embodiment, first guide grooves are formed on opposite sides of the main body, and two sides of the protective sub-tube corresponding to the opening are partially accommodated in the first guide grooves.

[0009] In one embodiment, the expansion member is rotatably connected to the main body, and the adjusting member is used to drive the expansion member to rotate relative to the main body when the adjusting member moves relative to the main body.

[0010] In one embodiment, the adjusting member includes a screw and a supporting portion, the screw is threadedly connected to the main body, the supporting portion is truncated cone-shaped, and the end with a smaller diameter is connected to the screw, the supporting portion is used to support the expansion member, and when the adjusting member rotates relative to the main body, the expansion member that is in contact with the supporting portion rotates relative to the main body.

[0011] In one embodiment, the expansion member includes a first expansion arm and a second expansion arm, and the first expansion arm and the second expansion arm are each provided with a second guide groove on the side opposite to each other, and the two sides of the protective sub-tube corresponding to the opening are partially accommodated in the second guide groove.

[0012] In one embodiment, the main body has a front end and a rear end opposite to each other, the cutout assembly is disposed at the front end, and the expansion member is connected to the rear end.

[0013] In one embodiment, the main body extends in a tapered shape from the front end to the rear end.

[0014] In one embodiment, the cutting assembly includes a driving member and a blade, the front end is provided with a mounting groove, the blade is rotatably arranged in the mounting groove, the driving member is connected to the blade, and is used to drive the blade to rotate relative to the main body so that the blade cuts the pipe wall of the protective sub-tube.

[0015] In one embodiment, the main body further includes a mounting body and a handle, the handle is connected to the mounting body, a motor is installed in the mounting body, and the motor is electrically connected to the driving member.

[0016] In one embodiment, the handle is provided with a control member, which is electrically connected to the motor and is used to control the start and stop of the motor.

[0017] When the above-mentioned protective sub-tube disassembly and assembly device is in use, it is only necessary to move the main body toward the side where the incision component is located. The incision component cuts the tube wall of the protective sub-tube to form an opening in the protective sub-tube, and the expansion piece expands and fixes the opening of the protective sub-tube, thereby meeting the maintenance needs of the optical cable in the protective sub-tube on the one hand, and avoiding the operator's fingers being pinched when they are inserted into the opening on the other hand; based on the adjustment piece, the expansion size of the expansion piece can be adjusted, and the opening width of the expanded protective sub-tube can be further adjusted, so that the protective sub-tube disassembly and assembly device is suitable for optical cables of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view of a protective sub-tube disassembly and assembly device in one embodiment of the present invention;

[0019] Figure 2 A top view of a protective sub-tube disassembly and assembly device in one embodiment of the present invention;

[0020] Figure 3 A side view of a protective sub-tube disassembly and assembly device in one embodiment of the present invention;

[0021] Figure 43-view diagram of the expansion member in one embodiment of the present invention;

[0022] Figure 5 It is a front view of the adjusting member in one embodiment of the present invention.

[0023] 10. Protective sub-tube disassembly and assembly device; 100. Incision assembly; 110. Drive member; 120. Blade; 200. Expansion assembly; 210. Main body; 211. Limiting wall; 2111. First guide groove; 2112. Front end; 2113. Rear end; 212. Flange structure; 2121. Mounting groove; 213. Mounting body; 2131. Cover; 214. Handle; 2141. Control member; 215. Connecting portion; 220. Expansion member; 221. First expansion arm; 222. Second expansion arm; 223. Second guide groove; 224. Groove; 225. Mounting hole; 230. Adjustment member; 231. Screw; 232. Supporting portion. DETAILED DESCRIPTION

[0024] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 therefore should not be understood as limiting the present invention.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. 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, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0027] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0028] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0030] Combine Figure 1 As shown, in one embodiment, the protective sub-tube disassembly and assembly device 10 includes a cutting assembly 100 and an expansion assembly 200. The cutting assembly 100 is used to cut the wall of the protective sub-tube to form an opening in the protective sub-tube. The expansion assembly 200 includes a main body 210, an expansion member 220, and an adjustment member 230. The main body 210 is connected to the cutting assembly 100. The expansion member 220 is movably connected to the main body 210. When the main body 210 moves toward the side where the cutting assembly 100 is located, the expansion member 220 can expand the opening of the protective sub-tube. The adjustment member 230 is movably connected to the main body 210 and is used to adjust the expansion size of the expansion member 220 relative to the main body 210 in a direction perpendicular to the movement of the main body 210.

[0031] When the above-mentioned protective sub-tube disassembly and assembly device 10 is in use, it is only necessary to move the main body 210 toward the side where the incision component 100 is located. The incision component 100 cuts the tube wall of the protective sub-tube to form an opening in the protective sub-tube, and the expansion member 220 expands and fixes the opening of the protective sub-tube, thereby meeting the maintenance needs of the optical cable in the protective sub-tube on the one hand, and avoiding the operator's fingers being inserted into the opening and being pinched on the other hand; based on the adjustment member 230, the expansion size of the expansion member 220 can be adjusted, and the opening width of the expanded protective sub-tube can be further adjusted, so that the protective sub-tube disassembly and assembly device 10 is suitable for optical cables of different specifications.

[0032] Combine Figures 1 to 3 As shown, in one embodiment, the main body 210 has a front end 2112 and a rear end 2113 opposite to each other. The main body 210 extends in a tapered shape from the front end 2112 to the rear end 2113. As a result, when the main body 210 moves toward the front end 2112, the larger rear end 2113 abuts against the protective sub-tube, thereby expanding the opening of the protective sub-tube. The main body 210 adopts this tapered extension structure, which can reduce the movement resistance during the expansion of the protective sub-tube, thereby making the expansion operation smoother. The main body 210 can be a plate-shaped member or a block-shaped member.

[0033] Furthermore, first guide grooves 2111 are formed on opposite sides of the main body 210, and the two sides of the protective sub-tube corresponding to the opening are partially accommodated in the first guide grooves 2111. The above arrangement allows the two sides of the protective sub-tube corresponding to the opening to be stably clamped in the first guide grooves 2111 and not easily loosened, which is conducive to improving the stability of the protective sub-tube disassembly and assembly device 10 in expanding the opening of the protective sub-tube. Since the opening of the protective sub-tube is not easily loosened, the risk of people being pinched by the opening of the protective sub-tube is reduced. Furthermore, since the two sides of the protective sub-tube corresponding to the opening are stably clamped in the first guide grooves 2111, it can be ensured that the protective sub-tube disassembly and assembly device 10 can perform incisions in a direction relatively parallel to the extension direction of the protective sub-tube, avoiding the problem that the moving direction of the protective sub-tube disassembly and assembly device during incision intersects with the extension direction of the cable in the protective sub-tube, causing damage to the optical cable.

[0034] It should be noted that there are various possible ways to form the first guide groove 2111. For example, in some embodiments, the first guide groove 2111 is formed by cutting along the extending direction of the two side edges of the tapered main body 210. In other embodiments, limiting walls 211 may be provided on the two side edges of the main body 210, and the limiting walls 211 and the main body 210 together enclose the first guide groove 2111.

[0035] Combine Figure 1 and Figure 4As shown, in some embodiments, the expander 220 is rotatably connected to the main body 210, and the adjusting member 230 is used to drive the expander 220 to rotate relative to the main body 210 when it moves relative to the main body 210. Specifically, the expander 220 is provided with a mounting hole 225, through which the expander 220 is connected to the main body 210. The rotational connection between the expander 220 and the main body 210 can be achieved by a bolt or pin installed in the mounting hole 225. It is understood that the connection between the expander 220 and the main body 210 is not a tight connection (enabling the expander 220 to rotate relative to the main body 210). Furthermore, in embodiments where the expander 220 is connected to the main body 210 using bolts, when the expander 220 is rotated to a desired angle relative to the main body 210, the bolts can be used to lock the expander 220 to the main body 210. This helps ensure the stability of the expansion dimension of the expander 220 relative to the main body 210 in a direction perpendicular to the movement of the main body 210.

[0036] It should be noted that the aforementioned adjustment of the rotational angle of the expander 220 relative to the main body 210 can be performed before the protective sub-tube assembly and disassembly device 10 performs incisions, or during the incision process of the protective sub-tube assembly and disassembly device 10. By adjusting the rotational angle of the expander 220 relative to the main body 210 before the protective sub-tube assembly and disassembly device 10 performs incisions and locking the expanded size of the expander 220, the protective sub-tube assembly and disassembly device 10 can be adapted to different protective sub-tubes of the same specifications, thereby reducing the tedious adjustment process. Adjusting the expansion size of the expansion member 220 during the incision operation of the protective sub-tube assembly and disassembly device 10 allows for finer adjustments to the expansion size, ensuring that the protective sub-tube assembly and disassembly device 10 effectively incises the wall of the protective sub-tube. Specifically, when the expansion size of the expansion member 220 is adjusted to the desired expansion size during the incision operation, the expansion member 220 is clamped by the two sides of the protective sub-tube corresponding to the opening, eliminating the need to lock the expansion member 220's rotational movement, thereby maintaining the expansion size of the expansion member 220. It will be appreciated that, based on the clamping force exerted by the two sides of the protective sub-tube corresponding to the opening on the expansion member 220, the relative position of the expansion member 220 to the main body 210 can be further fixed, i.e., the rotation of the expansion member 220 relative to the main body 210 can be locked, thereby effectively maintaining the expansion size of the expansion member 220 and thereby improving the expansion effect of the protective sub-tube assembly and disassembly device 10 on the protective sub-tube.

[0037] Combine Figure 1 and Figure 5As shown, in some embodiments, the adjusting member 230 is movably connected to the end of the main body 210 away from the incision assembly 100, and the connection method is a threaded connection or a sliding connection with a locking function. It should be noted that the sliding connection with a locking function means that when the adjusting member 230 slides relative to the main body 210, the movement state of the adjusting member 230 can be locked by a component with a locking function, that is, the relative position of the adjusting member 230 and the main body 210 is fixed. The above-mentioned component with a locking function can be a buckle, a pin, etc., and the above-mentioned adjusting member 230 is movably connected to the end of the main body 210 away from the incision assembly 100, and the connection method is a threaded connection or a sliding connection with a locking function. The stability of the expansion size of the adjustment member 220 relative to the main body 210 in the direction perpendicular to the movement of the main body 210 can be further ensured.

[0038] Combine Figure 2 and Figure 5 As shown, in some embodiments, the adjusting member 230 includes a screw 231 and a supporting portion 232. The screw 231 is threadedly connected to the main body 210. The supporting portion 232 is truncated cone-shaped, and the end with a smaller diameter is connected to the screw 231. The supporting portion 232 is used to support the expansion member 220. When the adjusting member 230 rotates relative to the main body 210, the expansion member 220 that is in contact with the supporting portion 232 rotates relative to the main body 210. Specifically, the main body 210 is provided with a connecting portion 215 interconnected with the screw 231, and the connecting portion 215 has an internal thread, which is threadedly connected to the connecting portion 215 through the screw 231. When the adjusting member 230 rotates relative to the connecting portion 215, the rotational motion of the adjusting member 230 can be converted into a translational motion relative to the main body 210, thereby realizing the position adjustment of the adjusting member 230 in the connecting portion 215. Furthermore, the position of the adjusting member 230 in the connecting portion 215 is adjustable, which drives the movement of the supporting portion 232 relative to the expansion member 220. When the screw 231 is tightened and rotated relative to the connecting portion 215, the supporting portion 232 moves in a direction close to the connecting portion 215. Movement, and stretch the expansion piece 220 to increase the expansion size of the expansion piece 220 relative to the main body 210 in the direction perpendicular to the moving direction of the main body 210. When the screw 231 is rotated relative to the connecting portion 215 in the opposite direction to the tightening direction, the supporting portion 232 moves in the direction away from the connecting portion 215. At this time, the expansion size of the expansion piece 220 relative to the main body 210 in the direction perpendicular to the moving direction of the main body 210 can be reduced. Through the above-mentioned arrangement, the protective sub-tube device can adjust the size of the expansion size of the expansion piece 220 relative to the main body 210 in the direction perpendicular to the moving direction of the main body 210, which is conducive to ensuring that the protective sub-tube disassembly and assembly device 10 is suitable for optical cables of different specifications.

[0039] Combine Figures 1 to 5As shown, in some embodiments, the expansion member 220 includes a first expansion arm 221 and a second expansion arm 222. The first expansion arm 221 and the second expansion arm 222 are each provided with a second guide groove 223 on opposite sides thereof, and the two sides of the protective sub-tube corresponding to the opening are respectively partially received in the second guide groove 223. Specifically, the first expansion arm 221 and the second expansion arm 222 are each provided with a groove 224 on the opposite side thereof, which cooperates with the abutting portion 232 of the adjustment member 230. Furthermore, the shape of the groove 224 matches the shape of the abutting portion 232. In one embodiment, the groove 224 is funnel-shaped, and the abutting portion 232 is a frustum that matches the funnel shape.

[0040] Combine Figure 1 As shown, in some embodiments, the second guide groove 223 and the first guide groove 2111 are kept flush in the vertical position. It should be noted that the above-mentioned keeping flush means that the first guide groove 2111 and the second guide groove 223 are not staggered with each other, thereby ensuring that the two sides of the protective sub-tube corresponding to the opening can be accommodated in the first guide groove 2111 and the second guide groove 223 at the same time.

[0041] Combine Figure 1 As shown, in some embodiments, the incision assembly 100 is disposed at the front end 2112 of the main body 210 , and the expansion piece 220 is connected to the rear end 2113 of the main body 210 .

[0042] Combine Figure 2 and Figure 3 As shown, in some embodiments, the incision assembly 100 includes a driving member 110 and a blade 120, the front end 2112 is provided with a mounting groove 2121, the blade 120 is rotatably disposed in the mounting groove 2121, the driving member 110 is connected to the blade 120, and is used to drive the blade 120 to rotate relative to the main body 210 so that the blade 120 cuts the pipe wall of the protective sub-tube. Specifically, a flange structure 212 is provided at one end of the main body 210 away from the expansion piece 220 (i.e., the front end 2112). The flange structure 212 can be a protrusion protruding relative to the front end 2112, and the protrusion is connected to the mounting body 213. The connection method can be welding, bolt connection or one-piece molding, etc. The mounting groove 2121 is provided at the middle position of the above-mentioned flange structure 212 relative to the main body 210 and perpendicular to the moving direction of the main body 210. At the same time, the driving member 110 is installed on one side of the flange structure 212, and the driving member 110 and the cutter are connected through the mounting groove 2121 through the rotating shaft. The driving member 110 is connected to the rotating shaft. The driving member 110 drives the rotating shaft to rotate, thereby driving the blade 120 to rotate in the mounting groove 2121, thereby cutting the pipe wall of the protective sub-tube.

[0043] Combine Figures 1 to 3As shown, in some embodiments, the main body 210 further includes a mounting body 213 and a handle 214. The handle 214 is connected to the mounting body 213. A motor (not shown) is installed in the mounting body 213, and the motor is electrically connected to the driving member 110 for holding the mounting body when cutting the wall of the protective sub-tube. Specifically, the mounting body 213 is provided with a receiving cavity, the motor is installed in the receiving cavity, and an opening is provided on one side of the mounting body 213. The mounting body 213 further includes a cover plate 2131 covering the above opening. In some embodiments, the handle 214 is connected to the top of the mounting body 213 to facilitate the operation of the protective sub-tube disassembly and assembly device 10 to move along the cutting direction of the protective sub-tube. The specific connection method can be welding, bolt connection or integrated molding.

[0044] Combine Figure 1 and Figure 3 As shown, in some embodiments, the handle 214 is further provided with a control member 2141, which is electrically connected to the motor and is used to control the start and stop of the motor. Specifically, the control member 2141 is provided on one side of the handle 214, and the control member 2141 can be a button or a lever.

[0045] It should be noted that when it is necessary to disassemble and assemble a protective sub-tube without an opening in the tube wall, it is necessary to first make an incision through the incision assembly 100. At this time, the position of the incision is the starting end of the opening of the protective sub-tube. Then, the front end 2112 of the main body 210 is aligned with the starting end of the above-mentioned opening, and the two sides of the opening corresponding to the protective sub-tube are sequentially inserted into the first guide groove 2111 from the front end 2112 to the rear end 2113. Then, the handle 214 is held and pushed in the extension direction of the protective sub-tube to make the incision and expand the cut opening. While making the incision, a part of the cable that needs to be repaired and maintained in the opening can be taken out. When the part of the cable that needs to be repaired and maintained is completely exposed outside the tube wall of the protective sub-tube, the incision operation can be stopped. At this time, the position where the incision is stopped is the end position of the opening after cutting. When the cable that has been repaired and maintained needs to be installed back into the protective sub-tube, it is only necessary to remove the blade 120 and move the front end 2112 in the opposite direction of the above-mentioned incision operation process (that is, the end toward the starting section), so that the two sides of the corresponding opening of the protective sub-tube are inserted into the first guide groove 2111 of the main body 210 along the front end 2112 to the rear end 2113, and push the handle 214 to move the front end 2112 along the end to the starting end direction and use the first guide groove 2111 to expand the corresponding opening of the protective sub-tube. While moving, the cable that has been repaired and maintained can be installed back into the protective sub-tube until the cable that has been repaired and maintained is completely installed back into the protective sub-tube. It can be understood that when disassembling and assembling a protective sub-tube with an opening in the tube wall, the step of using the incision assembly 100 to make an incision can be omitted. Furthermore, the expansion size of the expansion piece 220 relative to the main body 210 in the direction perpendicular to the movement of the main body 210 can be adjusted accordingly according to the required opening size of the protective sub-tube.

[0046] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A protective sub-tube disassembly and assembly device, characterized in that: include: A notch assembly, the notch assembly being used to notch the wall of the protection sub-tube to form an opening in the protection sub-tube; An expansion assembly includes a main body, an expansion piece and an adjustment piece. The main body is connected to the incision assembly. First guide grooves are formed on opposite sides of the main body. The expansion piece is movably connected to the main body. When the main body moves toward the side where the incision assembly is located, the expansion piece can open the opening cut out by the incision assembly on the protective sub-tube, and the two sides of the protective sub-tube corresponding to the opening are partially accommodated in the first guide groove. The adjustment piece is movably connected to the main body and is used to adjust the expansion size of the expansion piece relative to the main body in a direction perpendicular to the movement of the main body.

2. The protective sub-tube disassembly and assembly device according to claim 1, characterized in that: The expansion member is rotatably connected to the main body, and the adjusting member is used to drive the expansion member to rotate relative to the main body when the adjusting member moves relative to the main body.

3. The protective sub-tube disassembly and assembly device according to claim 2, characterized in that: The adjusting member includes a screw and a supporting portion. The screw is threadedly connected to the main body. The supporting portion is truncated cone-shaped, and the end with a smaller diameter is connected to the screw. The supporting portion is used to support the expansion member. When the adjusting member rotates relative to the main body, the expansion member that is in contact with the supporting portion rotates relative to the main body.

4. The protective sub-tube disassembly and assembly device according to claim 2, characterized in that: The expansion member includes a first expansion arm and a second expansion arm. The first expansion arm and the second expansion arm are each provided with a second guide groove on their opposite sides. Both sides of the protective sub-tube corresponding to the opening are partially accommodated in the second guide groove.

5. The protective sub-tube disassembly and assembly device according to claim 4, characterized in that: The second guide groove is flush with the first guide groove in a vertical direction.

6. The protective sub-tube disassembly and assembly device according to any one of claims 1 to 5, characterized in that: The main body has a front end and a rear end opposite to each other, the incision assembly is arranged at the front end, and the expansion piece is connected to the rear end.

7. The protective sub-tube disassembly and assembly device according to claim 6, characterized in that: The main body extends in a tapered shape from the front end to the rear end.

8. The protective sub-tube disassembly and assembly device according to claim 6, characterized in that: The cutting assembly includes a driving member and a blade. The front end is provided with a mounting groove. The blade is rotatably arranged in the mounting groove. The driving member is connected to the blade and is used to drive the blade to rotate relative to the main body so that the blade cuts the pipe wall of the protective sub-tube.

9. The protective sub-tube disassembly and assembly device according to claim 8, characterized in that: The main body also includes a mounting body and a handle, wherein the handle is connected to the mounting body, a motor is installed in the mounting body, and the motor is electrically connected to the driving component.

10. The protective sub-tube disassembly and assembly device according to claim 9, characterized in that: The handle is provided with a control component, which is electrically connected to the motor and is used to control the start and stop of the motor.

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