Drain wire insulation boot

Abstract

The utility model discloses a drainage wire insulation protection sleeve, including inner sleeve, outer sleeve, first elastic member and closed structure, and the inner sleeve is used for setting and fixing in the position close to the end of drainage wire, the outer sleeve sets up in the outside of inner sleeve, and can slide to the second predetermined position from the first predetermined position along the axial direction of inner sleeve, the first elastic member abuts against outer sleeve and inner sleeve along first direction and second direction respectively, and maintains that outer sleeve is in the first predetermined position, and the distal end of outer sleeve along first direction is provided with closed structure, when outer sleeve moves to the second predetermined position, the outer sleeve is used for covering the end of drainage wire completely, and the closed structure closes the pipe mouth of outer sleeve. If the end of drainage line falls off, the outer sleeve will quickly cover the end of drainage line, and the closed structure will close the pipe mouth of outer sleeve, so that the end of drainage line cannot contact with adjacent conductor and grounding body, avoiding the occurrence of short circuit, grounding and even fire accident, and improving the safety of power grid operation.

Description

Technical Field

[0001] This utility model relates to the field of power operation and maintenance technology, and in particular to a drain wire insulation protection sleeve. Background Technology

[0002] During the operation of power distribution lines, drop wires and jumpers, as important conductive connection components, are constantly exposed to wind, vibration, temperature changes, and external forces, making them highly susceptible to metal fatigue, loosening, or breakage. Once loosening or detachment occurs, the conductor end can easily come into contact with adjacent conductors or grounding electrodes, leading to short circuits, grounding, or even fires, seriously threatening the safety of the power grid and the reliability of power supply. Currently, in power operation and maintenance, insulating sleeves, binding straps, or simple protective covers are commonly used to protect drop wire joints. However, most of these devices are static fixed structures lacking automatic compensation functions. When encountering external impacts or loose conductors, they cannot actively increase the locking force, resulting in insufficient protection. Utility Model Content

[0003] To address the problem in existing technologies where the ends of conductors become loose or detached, easily coming into contact with adjacent conductors or grounding bodies, leading to short circuits, grounding, or even fires, seriously threatening the safety of power grid operation and the reliability of power supply, this utility model provides a conductor insulation protection sleeve.

[0004] This application provides an insulating protective sleeve for a drain wire, which is used to install at the end of a drain wire. The insulating protective sleeve includes an inner sleeve, an outer sleeve, a first elastic element, and a sealing structure. The inner sleeve is used to fit and fix the drain wire near its end. The outer sleeve is fitted outside the inner sleeve and can slide along the axial direction of the inner sleeve from a first predetermined position to a second predetermined position. The first elastic element abuts against the outer sleeve and the inner sleeve in a first direction and a second direction, respectively, and maintains the outer sleeve in the first predetermined position. The distal end of the outer sleeve in the first direction is provided with a sealing structure for sealing the opening of the outer sleeve. When the outer sleeve moves from the second predetermined position to the first predetermined position, the outer sleeve completely covers the end of the drain wire, and the sealing structure seals the opening of the outer sleeve.

[0005] In some embodiments, the enclosed structure includes a fixed part and a movable part that is slidably or rotatably connected to the fixed part, wherein the fixed part is connected to the outer sleeve or is an integral structure;

[0006] The movable part includes an open state for opening the outer tube opening and a closed state for closing the outer tube opening;

[0007] A second elastic element is provided between the movable part and the fixed part to maintain the movable part in the closed state.

[0008] In some embodiments, the fixing part is provided with a first limiting structure, which abuts against the moving part when the moving part moves to the closed state.

[0009] In some embodiments, the distal end of the inner sleeve along the second direction is provided with a clamping member for fixing the inner sleeve to the drainage line. The clamping member has a slot for clamping the drainage line, and the slot is coaxially arranged with the lumen of the inner sleeve.

[0010] In some embodiments, the locking member includes a locking seat, a locking block, and a connecting body that movably connects the locking block to the locking seat, wherein the locking block is disposed opposite to the locking seat in a direction perpendicular to the locking axis;

[0011] The card holder and the card block are respectively provided with a first slot and a second slot on their opposite sides, and the first slot and the second slot are opposite to each other to form the card slot;

[0012] The connector drives the card block to move closer to or further away from the card slot to change the diameter of the card slot.

[0013] In some embodiments, the outer side wall of the inner sleeve and the inner side wall of the outer sleeve are respectively provided with a first limiting part and a second limiting part;

[0014] When the outer tube is in the first predetermined position, the first limiting part and the second limiting part abut against each other to prevent the outer tube from continuing to move in the first direction.

[0015] In some embodiments, the outer sleeve has a clearance hole on its side wall, and the inner sleeve has a threaded hole on its side wall and a screw is provided thereon. The screw is used to protrude from the outer side of the inner sleeve to form the first limiting part. The clearance hole is located at the distal end of the second limiting part along the first direction.

[0016] When the outer sleeve is in the first predetermined position, the clearance hole is aligned with the threaded hole on the same axis.

[0017] In some embodiments, the insulating protective sleeve of the drain line further includes a water-blocking component, which is disposed at the distal end of the inner sleeve along the second direction. The water-blocking component has a through hole at its center for the guide line to pass through, and the through hole is coaxially arranged with the lumen of the inner sleeve.

[0018] The water-blocking component protrudes along the second direction to form a conical structure, including a convex surface and a concave surface. The inner sleeve is connected to the side of the water-blocking component where the concave surface is located, and the clamping component is connected to the side of the water-blocking component where the convex surface is located.

[0019] In some embodiments, the clamping member and the water-blocking member are an integral structure.

[0020] In some embodiments, the closure structure has a sleeve opening, through which the closure structure is sleeved onto the distal end of the outer sleeve along the first direction, and at the overlap of the closure structure and the outer sleeve, a first fastener is provided in a direction perpendicular to the axis of the outer sleeve.

[0021] The inner sleeve is provided with a flange ring for connecting to the water-blocking component at one end near the water-blocking component. A second fastener is provided at the connection between the flange ring and the water-blocking component, and the second fastener connects the inner sleeve and the water-blocking component along a second direction.

[0022] Compared with the prior art, the beneficial effects of the drain wire insulation protective sleeve provided by this utility model are as follows:

[0023] In the insulated protective sleeve for the lead wire provided in this application, the inner sleeve is fixed to the lead wire, and the outer sleeve, under the action of the first elastic element, continuously presses against the connection part of the lead wire, so that the "copper-aluminum lug" at the end of the lead wire can always maintain a tight contact with the terminal of the equipment. Even if the bolts fixing the "copper-aluminum lug" loosen, the "copper-aluminum lug" will not separate from the terminal of the equipment due to the pressing action of the outer sleeve, thereby ensuring the normal conduction of the line.

[0024] Furthermore, if the "copper-aluminum lug" at the end of the drain wire falls off (the bolts fixing the "copper-aluminum lug" come off, and the drain wire detaches from the equipment), the outer sleeve will quickly move to the second predetermined position under the action of the first elastic element. Then, the sealing structure will seal the opening of the outer sleeve. In this way, the end of the drain wire can be completely sealed into the cavity of the outer sleeve, and the end of the drain wire cannot come into contact with adjacent conductors or grounding bodies, thus avoiding short circuits, grounding, or even fire accidents and improving the safety of power grid operation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the outer sleeve in a first predetermined position according to one embodiment of this application;

[0026] Figure 2 This is a cross-sectional schematic diagram of the overall structure of the outer sleeve when it is in the first predetermined position in one embodiment of this application;

[0027] Figure 3 yes Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0028] Figure 4 yes Figure 2 Enlarged schematic diagram of the structure at point B;

[0029] Figure 5 yes Figure 2 Enlarged schematic diagram of the structure at point C;

[0030] Figure 6 This is a schematic diagram of the overall structure of the outer sleeve in a second predetermined position according to one embodiment of this application;

[0031] Figure 7 This is a cross-sectional schematic diagram of the overall structure of the outer sleeve when it is in the second predetermined position in one embodiment of this application;

[0032] Figure 8 This is an exploded structural diagram of one embodiment of this application.

[0033] 100. Inner sleeve; 101. First limiting part; 102. Threaded hole; 103. Screw; 104. Flange ring; 200. Outer sleeve; 201. Second limiting part; 202. Clearance hole; 300. First elastic element; 400. Closed structure; 41. Fixed part; 42. Movable part; 43. Second elastic element; 401. Sleeve opening; 402. First limiting structure; 500. Clamping element; 51. Clamping seat; 52. Clamping block; 53. Connecting body; 501. First groove; 502. Second groove; 503. Clamping opening; 600. Water-blocking element; 601. Through hole; 602. Convex surface; 603. Concave surface; 700. First fastener; 800. Second fastener; 900. Drainage line; X, First direction; Y, Second direction. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0039] The present invention will now be described in further detail with reference to the accompanying drawings.

[0040] like Figure 1 , Figure 2 An insulating protective sleeve for a drain wire 900 is shown, comprising an inner sleeve 100, an outer sleeve 200, a first elastic element 300, and a closed structure 400. The inner sleeve 100 is fitted and fixed near the end of the drain wire 900. Specifically, the inner sleeve 100 can be fixed to the outside of the drain wire 900 using common connection structures, such as adhesive bonding or snap-fit ​​bonding. The outer sleeve 200 is fitted over the inner sleeve 100 and can slide along the axial direction of the inner sleeve 100 from a first predetermined position to a second predetermined position. The first elastic element 300 abuts against the outer sleeve 200 and the inner sleeve 100 along a first direction X and a second direction Y, respectively, maintaining the outer sleeve 200 in the first predetermined position. Through this design, it can be understood that, under the action of the first elastic element 300, the outer sleeve 200 can elastically slide relative to the inner sleeve 100 along the axial direction of the inner sleeve 100.

[0041] Please refer to it again. Figure 2 As shown, when the outer sleeve 200 slides from the second predetermined position to the first predetermined position, the outer sleeve 200 gradually moves towards the end of the drain line 900, thereby enclosing the end of the drain line 900 inside the cavity of the outer sleeve 200. Specifically, the aforementioned first elastic element 300 can be a spring arranged axially along the inner sleeve 100 and the outer sleeve 200. One end of the spring abuts against the inner sleeve 100, and the other end abuts against the outer sleeve 200, thereby allowing the outer sleeve 200 to be maintained in the first predetermined position by the spring force. The outer sleeve 200 can move from the first predetermined position to the second predetermined position under the action of an external force. During this process, the spring is compressed, and the compressed spring gives the outer sleeve 200 a tendency to move towards the first predetermined position. The aforementioned first direction X and second direction Y are consistent with the direction of the spring force.

[0042] like Figure 1 , Figure 2 As shown, the outer sleeve 200 is provided with a sealing structure 400 at its distal end along the first direction X for sealing the opening of the outer sleeve 200. When the outer sleeve 200 moves from the second predetermined position to the first predetermined position, the outer sleeve 200 completely covers the end of the drainage line 900, and the sealing structure 400 seals the opening of the outer sleeve 200. In other words, when the outer sleeve 200 moves to the first predetermined position, the end of the drainage line 900 can be completely inserted into the cavity of the outer sleeve 200. Combined with the sealing effect of the sealing structure 400 on the opening of the outer sleeve 200, the end of the drainage line 900 can be completely sealed inside the cavity of the outer sleeve 200, preventing contact with external personnel or objects.

[0043] The following is a detailed description of the insulated protective sleeve for the drain wire provided in this application, based on the above content:

[0044] Please see Figure 6 , Figure 7 To understand this, in practical applications, first compress the outer sheath 200 so that the drain wire 900 passes through the cavity of the outer sheath 200 and connects to the terminal on the equipment. For example... Figure 6 As shown, normally, the lead wire 900 is connected to the terminal block of the equipment via a "copper-aluminum lug" (a common wiring connection component in electrical circuits), and then the "copper-aluminum lug" is fixed to the terminal block of the equipment with bolts. In this application, the inner sleeve 100 is fixed to the lead wire 900, and the outer sleeve 200, under the action of the first elastic member 300, continuously presses the connection between the outer sleeve 200 and the lead wire 900, so that the "copper-aluminum lug" at the end of the lead wire 900 can always maintain a tight contact with the terminal block of the equipment. Even if the bolts fixing the "copper-aluminum lug" loosen, the "copper-aluminum lug" will not separate from the terminal block of the equipment due to the pressing action of the outer sleeve 200, thereby ensuring the normal conduction of the circuit.

[0045] Furthermore, if the "copper-aluminum lug" at the end of the lead wire 900 falls off (the bolts fixing the "copper-aluminum lug" fall off, and the lead wire 900 detaches from the equipment), the outer sleeve 200 will quickly move to the first predetermined position under the action of the first elastic element 300. Then, the sealing structure 400 will seal the opening of the outer sleeve 200. In this way, the end of the lead wire 900 can be completely sealed into the cavity of the outer sleeve 200, and the end of the lead wire 900 cannot contact adjacent conductors or grounding bodies, thus avoiding short circuits, grounding, or even fire accidents and improving the safety of power grid operation.

[0046] The technical details of each component will be introduced below.

[0047] In some embodiments, the closed structure 400 includes a fixed part 41 and a movable part 42 that is slidably or rotatably connected to the fixed part 41. The fixed part 41 is connected to the outer sleeve 200 or is an integral structure.

[0048] The movable part 42 includes an open state for opening the opening of the outer tube 200 and a closed state for closing the opening of the outer tube 200. The movable part 42 can switch between the open state and the closed state by rotating or sliding.

[0049] A second elastic element 43 is provided between the movable part 42 and the fixed part 41 to keep the movable part 42 in a closed state.

[0050] like Figure 2 , Figure 3 As shown, the fixing part 41 can be connected to the outer sleeve 200 by bolts. The second elastic element 43 can be a torsion spring. The movable part 42 can deflect relative to the fixing part 41. Under the action of the torsion spring, the movable part 42 can elastically deflect. In the absence of external force, the movable part 42 is in a closed state under the action of the torsion spring, thereby sealing the opening of the outer sleeve 200. Please refer to... Figure 6 In practical applications, when the lead wire 900 is connected to the equipment, the movable part 42 cannot rotate to a closed state due to the obstruction of the lead wire 900. If the lead wire 900 detaches, the outer sleeve 200 drives the closing structure 400 towards the end of the lead wire 900, extending beyond its end. At this point, the obstruction effect of the lead wire 900 on the movable part 42 disappears, and the movable part 42 can quickly move to a closed state under the action of the torsion spring, sealing the opening of the outer sleeve 200. Through the above process, the technical effect of quickly and automatically sealing and isolating the end of the lead wire 900 after it detaches can be achieved, preventing the end of the lead wire 900 from contacting adjacent conductors or grounding bodies, thus improving the safety of power grid operation.

[0051] In some implementations, such as Figure 2 , Figure 3 As shown, the fixed part 41 is provided with a first limiting structure 402. When the movable part 42 moves to the closed state, the first limiting structure 402 abuts against the movable part 42. The first limiting structure 402 can block the fixed part 41, preventing the fixed part 41 from rotating excessively under the action of the torsion spring, and ensuring that the movable part 42 can move completely and accurately to the predetermined position to close the opening of the outer sleeve 200.

[0052] In some implementations, such as Figure 2 , Figure 5 , Figure 6 , Figure 7As shown, a clamping member 500 for fixing the inner sleeve 100 to the drainage line 900 is provided at the distal end along the second direction Y. The clamping member 500 has a bayonet 503 for clamping the drainage line 900, and the bayonet 503 is coaxially arranged with the cavity of the inner sleeve 100. In practical applications, the entire device can be fixed by clamping the drainage line 900 with the clamping member 500.

[0053] In some implementations, such as Figure 2 , Figure 5 , Figure 6 , Figure 7 As shown, the clamping member 500 includes a clamping base 51, a clamping block 52, and a connecting body 53 that movably connects the clamping block 52 to the clamping base 51. The clamping block 52 is arranged opposite to the clamping block 503 along a direction perpendicular to the axis of the clamping slot 503. The opposing surfaces of the clamping base 51 and the clamping block 52 are respectively provided with a first slot 501 and a second slot 502, which together form the clamping slot 503. The connecting body 53 drives the clamping block 52 to move closer to or away from the clamping base 51 to change the diameter of the clamping slot 503. Through the above design, the position of the clamping block 52 can be adjusted by the connecting body 53, thereby enabling the drain wire insulation protective sleeve provided in this application to be fixed on drain wires 900 of different diameters, enhancing the adaptability of the drain wire insulation protective sleeve.

[0054] In some implementations, such as Figure 2 , Figure 4 , Figure 6 , Figure 7 As shown, the outer side wall of the inner sleeve 100 and the inner side wall of the outer sleeve 200 are respectively provided with a first limiting part 101 and a second limiting part 201. When the outer sleeve 200 is in a first predetermined position, the first limiting part 101 and the second limiting part 201 abut against each other to prevent the outer sleeve 200 from continuing to move along the first direction X. With the above design, when the outer sleeve 200 moves to the first predetermined position, the first limiting part 101 and the second limiting part 201 can prevent the outer sleeve 200 from coming off the outside of the inner sleeve 100 by means of structural abutment and restriction.

[0055] In some implementations, such as Figure 1 , Figure 2 , Figure 4As shown, the outer sleeve 200 has a clearance hole 202 on its side wall, and the inner sleeve 100 has a threaded hole 102 on its side wall and a screw 103 is provided thereon. The screw 103 is used to protrude from the outer surface of the inner sleeve 100 to form a first limiting part 101. The clearance hole 202 is located at the distal end of the second limiting part 201 along the first direction X. When the outer sleeve 200 is in the first predetermined position, the clearance hole 202 and the threaded hole 102 are coaxially aligned. Understandably, in actual production and processing, the inner sleeve 100 and the outer sleeve 200 are usually an integral tubular structure. With the above design, during assembly, the inner sleeve 100 is first inserted into the outer sleeve 200. Since the threaded hole 102 of the inner sleeve 100 does not have a screw 103, the inner sleeve 100 can smoothly pass through the second limiting part 201 of the outer sleeve 200 until the threaded hole 102 of the inner sleeve 100 is aligned with the clearance hole 202 of the outer sleeve 200. At this point, the screw 103 is screwed into the threaded hole 102 through the clearance hole 202. Because the screw 103 protrudes from the side of the inner sleeve 100, the outer diameter at the threaded hole 102 of the inner sleeve 100 increases, forming the first limiting part 101. This prevents the outer sleeve 200 from coming out. This design facilitates the production and assembly of the entire equipment.

[0056] In some implementations, such as Figure 1 , Figure 2 , Figure 8 As shown, the insulating protective sleeve for the guide wire provided in this application also includes a water-blocking component 600. The water-blocking component 600 is disposed at the distal end of the inner sleeve 100 along the second direction Y. The water-blocking component 600 has a through hole 601 at its center for the guide wire to pass through, and the through hole 601 is coaxially arranged with the cavity of the inner sleeve 100. The water-blocking component 600 protrudes along the second direction Y to form a conical structure, including a convex surface 602 and a concave surface 603. The inner sleeve 100 is connected to the side of the water-blocking component 600 where the concave surface 603 is located, and the clamping component 500 is connected to the side of the water-blocking component 600 where the convex surface 602 is located. The water-blocking component 600 can block rainwater and reduce the amount of rainwater entering the interior of the outer sleeve 200 through the gap between the inner sleeve 100 and the outer sleeve 200.

[0057] In some implementations, such as Figure 8 As shown, the aforementioned clamping component 500 and water-blocking component 600 are an integral structure. This design enhances the overall integrity of the drain wire insulation protective sleeve.

[0058] In some implementations, such as Figure 2 , Figure 3As shown, the closed structure 400 has a sleeve opening 401, which is sleeved onto the distal end of the outer sleeve 200 along the first direction X. At the overlap of the closed structure 400 and the outer sleeve 200, a first fastener 700 is provided in a direction perpendicular to the axis of the outer sleeve 200. Specifically, the first fastener 700 can be a bolt. Correspondingly, the closed structure 400 and the outer sleeve 200 have coaxially arranged bolt holes at their overlap. The bolt connects and fixes the two together in a direction perpendicular to the axis of the outer sleeve 200 through the bolt holes at their overlap. It can be understood that through the above connection method, the closed structure 400 can be prevented from detaching from the outer sleeve 200 along the first direction X, and the bolt forms a structural constraint between the two, enhancing the stability of the connection.

[0059] like Figure 2 , Figure 5 As shown, the inner sleeve 100 is provided with a flange ring 104 for connecting with the water-blocking member 600 at one end near the water-blocking member 600. A second fastener 800 is provided at the connection between the flange ring 104 and the water-blocking member 600, and the second fastener 800 connects the inner sleeve 100 and the water-blocking member 600 along the second direction Y. Specifically, the second fastener 800 can also be a bolt. Correspondingly, the flange and the water-blocking member 600 are provided with corresponding bolt holes, and the water-blocking member 600 and the inner sleeve 100 are connected and fixed by bolts, making assembly convenient and stable. In addition to the above effects, the flange ring 104 can also provide a supporting part for the abutting action between the first elastic member 300 and the inner sleeve 100.

[0060] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0061] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0062] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An insulating protective sleeve for a drain wire, used to be installed at the end of a drain wire (900), characterized in that, include: Inner sleeve (100) is used to be sleeved and fixed near the end of the drain line (900); The outer sleeve (200) is fitted on the outside of the inner sleeve (100) and can slide along the axial direction of the inner sleeve (100) from a first predetermined position to a second predetermined position. The first elastic element (300) abuts against the outer sleeve (200) and the inner sleeve (100) along the first direction (X) and the second direction (Y) respectively, and maintains the outer sleeve (200) in the first predetermined position; The outer tube (200) is provided with a sealing structure (400) for sealing the opening of the outer tube (200) at its distal end along the first direction (X); When the outer tube (200) moves from the second predetermined position to the first predetermined position, the outer tube (200) is used to completely cover the end of the drain line (900), and the closing structure (400) closes the opening of the outer tube (200).

2. The insulating protective sleeve for the drain wire according to claim 1, characterized in that, The closed structure (400) includes a fixed part (41) and a movable part (42) that is slidably or rotatably connected to the fixed part (41). The fixed part (41) is connected to the outer tube (200) or is an integral structure. The movable part (42) includes an open state for opening the opening of the outer tube (200) and a closed state for closing the opening of the outer tube (200); A second elastic member (43) is provided between the movable part (42) and the fixed part (41) to maintain the movable part (42) in the closed state.

3. The insulating protective sleeve for the drain wire according to claim 2, characterized in that, The fixed part (41) is provided with a first limiting structure (402). When the movable part (42) moves to the closed state, the first limiting structure (402) abuts against the movable part (42).

4. The insulating protective sleeve for the drain wire according to claim 1, characterized in that, The inner sleeve (100) is provided with a clamping member (500) at its distal end along the second direction (Y) for fixing the inner sleeve (100) and the drainage line (900). The clamping member (500) has a bayonet (503) for clamping the drainage line (900), and the bayonet (503) is coaxially arranged with the lumen of the inner sleeve (100).

5. The drain wire insulation protective sleeve according to claim 4, characterized in that, The clamping component (500) includes a clamping seat (51), a clamping block (52), and a connecting body (53) that movably connects the clamping block (52) to the clamping seat (51). The clamping block (52) is arranged opposite to the clamping slot (503) along a direction perpendicular to the axis of the clamping slot (503). The card holder (51) and the card block (52) are respectively provided with a first slot (501) and a second slot (502) on their opposite sides, and the first slot (501) and the second slot (502) are opposite to each other to form the card slot (503); The connector (53) drives the card block (52) to move closer to or further away from the card holder (51) to change the diameter of the slot (503).

6. The insulating protective sleeve for the drain wire according to claim 1, characterized in that, The outer side wall of the inner sleeve (100) and the inner side wall of the outer sleeve (200) are respectively provided with a first limiting part (101) and a second limiting part (201); When the outer tube (200) is in the first predetermined position, the first limiting part (101) and the second limiting part (201) abut against each other to prevent the outer tube (200) from continuing to move along the first direction (X).

7. The insulating protective sleeve for the drain wire according to claim 6, characterized in that, The outer sleeve (200) has a clearance hole (202) on its side wall, and the inner sleeve (100) has a threaded hole (102) on its side wall and is provided with a screw (103). The screw (103) is used to protrude from the outer side of the inner sleeve (100) to form the first limiting part (101). The clearance hole (202) is located at the far end of the second limiting part (201) along the first direction (X). When the outer sleeve (200) is in the first predetermined position, the clearance hole (202) is aligned with the threaded hole (102) on the same axis.

8. The insulating protective sleeve for the drain wire according to claim 4, characterized in that, The insulating protective sleeve of the drain line also includes a water-blocking component (600), which is disposed at the far end of the inner sleeve (100) along the second direction (Y). The water-blocking component (600) has a through hole (601) for the guide line to pass through at its center. The through hole (601) is coaxially arranged with the cavity of the inner sleeve (100). The water-blocking member (600) protrudes along the second direction (Y) to form a conical structure, including a convex surface (602) and a concave surface (603). The inner sleeve (100) is connected to the side of the water-blocking member (600) where the concave surface (603) is located, and the clamping member (500) is connected to the side of the water-blocking member (600) where the convex surface (602) is located.

9. The insulating protective sleeve for the drain wire according to claim 8, characterized in that, The clamping component (500) and the water-blocking component (600) are an integral structure.

10. The insulating protective sleeve for the drain wire according to claim 8, characterized in that, The closed structure (400) has a sleeve opening (401), and the closed structure (400) is sleeved on the distal end of the outer tube (200) along the first direction (X) through the sleeve opening (401). At the overlap of the closed structure (400) and the outer tube (200), a first fastener (700) is provided in a direction perpendicular to the axis of the outer tube (200). The inner sleeve (100) is provided with a flange ring (104) for connecting with the water-blocking member (600) at one end near the water-blocking member (600). A second fastener (800) is provided at the connection between the flange ring (104) and the water-blocking member (600). The second fastener (800) connects the inner sleeve (100) and the water-blocking member (600) along the second direction (Y).

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