Waterproof aluminum alloy cable
By adopting a protective layer and mechanical sealing structure at the connection of aluminum alloy cables, the problem of difficulty in achieving waterproofing at the connection of cables in the prior art is solved, and a more efficient waterproofing effect of cable connections is achieved.
Patent Information
- Application Number
- CN202420266025.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-03
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-02-03
AI Technical Summary
The prior art is difficult to achieve effective waterproofing at cable connections buried outdoors or underground, resulting in cable connections being susceptible to rainwater, which may cause cable damage and fire.
A waterproof aluminum alloy cable is designed, which uses a protective layer to wrap the inner core, and a connecting inner sleeve and a connecting jacket are provided at both ends of the cable. The tight connection is achieved through threaded connection and the slider mechanical structure, thereby forming a sealing effect at the cable connection.
By installing protective layer and mechanical sealing structure at the cable connection, the waterproof performance at the cable connection is significantly improved, preventing rainwater from seeping in, and avoiding cable damage and fire risks.
Smart Images
Figure CN222620216U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of cable technology, and in particular to a waterproof aluminum alloy cable. Background Art
[0002] Cables are the medium responsible for transmitting electric power resources. Aluminum alloy power cables adopt advanced conductor annealing technology. Aluminum alloy conductor power cables are widely recognized by the market for their low price, excellent flame retardancy, corrosion resistance, bending resistance, creep resistance, and light weight. During the use of cables, it is inevitable that the length is insufficient. At this time, the two sections of cable need to be connected.
[0003] Nowadays, most cable connection is done by using a junction box. The ends of the cables to be connected are stripped to expose the inner core of the cables. The exposed inner core of the cables is wound in the junction box, and the inner core of another cable is wound in the junction box to connect the inner cores of the two cables, thereby connecting the cables.
[0004] The above-mentioned prior art solutions have the following defects: in some cables buried outdoors or underground, the junction box cannot effectively waterproof the cable connection, resulting in rainwater intrusion into the cable connection, causing damage to the cable, and even fire may occur in severe cases. Utility Model Content
[0005] In order to better waterproof the aluminum alloy cable, the present application provides a waterproof aluminum alloy cable.
[0006] The above technical objectives of this application are achieved through the following technical solutions:
[0007] A waterproof aluminum alloy cable comprises an inner core and a protective layer, wherein the protective layer is wrapped around the outer side of the inner core, and a connecting inner sleeve and a connecting outer sleeve are respectively arranged at both ends of the protective layer, a cavity is opened inside the connecting outer sleeve, an external threaded sleeve is slidably connected in the cavity, an internal threaded sleeve is rotatably connected to the outer surface of the connecting outer sleeve, the internal threaded sleeve is threadedly connected to the external threaded sleeve, a connecting rod is connected to the side of the external threaded sleeve close to the edge of the cable, a sliding hole along the cable axis direction is opened on the inner surface of the external threaded sleeve, a slider is connected to the end of the connecting rod away from the connecting outer sleeve, the slider is slidably connected in the sliding hole, and the slider can pass through the slot to reach the inner surface of the external threaded sleeve, and a sliding groove along the cable axis direction is opened on the outside of the connecting inner sleeve opposite to the sliding hole.
[0008] By adopting the above scheme, the protective layer protects the inner core inside to prevent water from entering the inner core. When the cables are connected, the ends of the cables at both ends are peeled off to leak the inner core, and then the inner cores of the cables at both ends are wound together and wrapped with insulating tape on the outside, and the connecting inner sleeves of the cables at both ends are inserted into the connecting outer sleeve of the other cable, so that the slider slides into the slide groove, and then the internal threaded sleeve is rotated, and the internal threaded sleeve drives the external threaded sleeve to move in the cavity away from the edge of the cable, thereby driving the slider to slide, so that the slider is pressed against the edge of the slide groove, so that the connecting inner sleeve and the connecting outer sleeve are tightly connected, thereby achieving better waterproofing of the connection of the aluminum cable.
[0009] Optionally, the protective layer includes a waterproof layer, an armor layer and an outer protective layer, the waterproof layer is wrapped around the outside of the inner core, the waterproof layer is a water-blocking aramid yarn layer, the armor layer is wrapped around the outside of the waterproof layer, and the outer protective layer is wrapped around the outside of the armor layer.
[0010] By adopting the above technical scheme, setting up a waterproof layer can prevent rainwater from penetrating into the interior of the cable and causing damage to the cable, setting up an armor layer can increase the cable's pressure resistance and compression resistance, and at the same time the waterproof layer can prevent the armor layer from causing damage to the inner core, the outer sheath makes the cable more beautiful, and at the same time the outer sheath can prevent the cable from rubbing against the ground and causing damage to the waterproof layer and the inner core.
[0011] Optionally, a plurality of inner cores are wrapped inside the outer protective layer, and the gaps between the inner cores are filled with fillers.
[0012] By adopting the above technical solution, the utilization rate of the cable is improved, the power transmission efficiency of the cable is increased, the filler plays a certain protective role on the inner core, and at the same time the filler makes the cross section of the cable more rounded.
[0013] Optionally, an inner cladding layer is provided between the inner core and the protective layer.
[0014] By adopting the above technical solution, the inner cladding isolates the inner core from the protective layer, so that the inner core will not be damaged when the protective layer is wrapped around the outer side of the inner core, thereby achieving the effect of protecting the inner core.
[0015] Optionally, a through hole is provided at one end of the connecting slider of the connecting rod, the slider is fixedly connected to a guide rod, the guide rod is slidably connected in the through hole, a spring is fixedly connected to the slider, the other end of the spring is fixedly connected to the connecting rod, and one side of the slider close to the cable end is sloped.
[0016] By adopting the above technical solution, in the initial state, the slider extends out of the sliding hole. When the cable is connected, the connecting inner sleeve is inserted into the connecting outer sleeve, the slider is pressed into the sliding hole, and the spring is compressed. When the slider is facing the sliding groove, the spring rebounds and presses the slider into the inside of the sliding groove, and then the internal threaded sleeve is rotated to drive.
[0017] Optionally, an inner sleeve sliding tube and an outer sleeve sliding tube are fixedly provided on the outside of the protective layer near both ends, the inner sleeve is slidably connected to the outside of the inner sleeve sliding tube, and an inner sleeve limiting plate for limiting the sliding of the inner sleeve is provided on the side of the inner sleeve sliding tube close to the edge of the cable, and the outer sleeve is slidably connected to the outside of the outer sleeve sliding tube, and a outer sleeve limiting plate for limiting the sliding of the outer sleeve sliding tube is provided on the side of the outer sleeve sliding tube close to the edge of the cable.
[0018] By adopting the above technical solution, when pipeline connection is required, the connecting outer sleeve can be slid away from the cable end along the outer sleeve sliding tube, and the connecting inner sleeve can be slid away from the cable end along the inner sleeve sliding tube to expose the cable end, and then the exposed cable can be stripped off, so that the operator can more conveniently connect the cable ends.
[0019] Optionally, the external threaded sleeve is fixedly connected to a guide rod at one end facing away from the connecting rod, and a slanted slide rail is provided on the side surface of the guide rod at one end facing away from the external threaded sleeve, which is at a certain angle to the cable axis. An slanted slide piece is slidably connected to the inclined slide rail, and a splint is fixedly connected to the side of the slanted slide piece close to the inner side of the connecting sleeve, and a connecting hole connecting the cavity is provided on the inner surface of the connecting sleeve, and the splint is slidably connected in the connecting hole. When the external threaded sleeve slides toward the side close to the splint, the frame plate slides toward the inner core.
[0020] By adopting the above technical solution, when the rotating internal threaded sleeve drives the external threaded sleeve to move away from the cable end, the connecting outer sleeve drives the guide rod to move, thereby driving the inclined slide to slide along the inclined slide rail, thereby driving the clamping plate to slide toward the inner core, so that the clamping plate and the connecting outer sleeve clamp the outer sleeve limit plate, so that the gap between the outer sleeve slide tube and the connecting outer sleeve is sealed, thereby preventing rainwater from entering the gap between the outer sleeve slide tube and the connecting outer sleeve into the cable and causing damage to the cable.
[0021] Optionally, a sliding groove is formed on the end face of the connecting inner sleeve along the axial direction of the cable, a clamping hole is formed at the bottom of the sliding groove facing the inner core, a push rod is slidably connected in the sliding groove, a clamping rod is slidably connected in the clamping hole, the clamping rod abuts against the push rod near one end of the sliding groove, and the abutment between the push rod and the clamping rod is an inclined surface. When the push rod moves toward the bottom of the sliding groove, the clamping rod moves toward the inner core.
[0022] By adopting the above technical solution, when the cable is connected, the connecting inner sleeve is inserted into the connecting outer sleeve, thereby squeezing the push rod toward the bottom of the sliding groove, so that the push rod drives the clamping rod to move toward the inner core, so that the clamping rod and the edge of the connecting inner sleeve clamp the inner sleeve limit plate, thereby sealing the gap between the inner sleeve sliding tube and the connecting outer sleeve.
[0023] In summary, this application has the following technical effects:
[0024] 1. The waterproof effect of the cable connection is increased by setting a connecting inner sleeve and a connecting outer sleeve at the cable end;
[0025] 2. The inner cladding is set to prevent the pouring protective layer from causing damage to the inner core;
[0026] 3. The gap between the connecting outer sleeve and the outer sleeve sliding tube is blocked by providing a guide rod and a clamping plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a partial structural schematic diagram of the connection of this application;
[0028] Figure 2 is a cross-sectional view of the internal structure of the cable of the present application;
[0029] Figure 3 It is a cross-sectional view of a portion of the structure of the cable connection intended by the present application;
[0030] Figure 4 yes Figure 3 A partial enlarged view of the structure at A in the middle;
[0031] Figure 5 yes Figure 3 A magnified view of the structure at B in the middle;
[0032] Figure 6 yes Figure 3 A partial enlarged view of the structure of C in the middle;
[0033] Figure 7 This is a partial schematic diagram intended to emphasize the connection relationship between the guide rod and the clamping plate.
[0034] In the figure, 1, inner core; 11, aluminum alloy wire harness; 12, rubber insulation layer; 2, protective layer; 21, waterproof layer; 22, armor layer; 23, outer sheath; 3, connecting inner sleeve; 31, slide groove; 32, sliding groove; 33, clamping hole; 331, elastic groove; 332, elastic member; 34, push rod; 35, clamping rod; 4, connecting outer sleeve; 41, cavity; 411, slide hole; 412, through hole; 42, external thread sleeve; 43, internal thread sleeve; 44, connecting rod; 441, through hole; 45, slider; 451, guide rod; 452, spring; 46, guide rail rod; 461, inclined slide rail; 47, splint; 471, inclined slide member; 5, filler; 6, inner sheath; 7, outer sleeve slide tube; 71, outer sleeve limiting plate; 8, inner sleeve slide tube; 81, inner sleeve limiting plate. DETAILED DESCRIPTION
[0035] The present application is further described in detail below in conjunction with the accompanying drawings.
[0036] Reference Figure 1, a waterproof aluminum alloy cable, comprising an inner core 1 and a protective layer 2, the protective layer 2 is wrapped around the outer side of the inner core 1, and a connecting inner sleeve 3 and a connecting outer sleeve 4 are respectively arranged at both ends of the cable, and the connecting inner sleeve 3 and the connecting outer sleeve 4 are respectively arranged on the outer side of the protective layer 2. When the cable needs to be connected, the protective layer 2 at the end of the cable is peeled off to expose the inner core 1, and then the inner cores 1 of the two cables to be connected are wound together, and then the insulating tape is wrapped around the outer side of the cable inner core 1, and then the connecting inner sleeve 3 of one of the cables is inserted into the connecting outer sleeve 4 of the other cable, and the connecting inner sleeve 3 and the connecting outer sleeve 4 are fixed, so that the cable connection is fixed and sealed, so as to prevent rainwater from penetrating into the cable connection to cause a cable short circuit or even a fire.
[0037] Reference Figure 1 and Figure 2 The inner core 1 includes an aluminum alloy wire harness 11 and a rubber insulating layer 12. The rubber insulating layer 12 is wrapped around the outside of the aluminum alloy wire harness 11 to insulate the outside of the cable. The inner core 1 is provided with multiple inner cores 1, which are wound together. A filler 5 made of glass fiber rope is provided in the gap between the inner cores 1. The filler 5 fills the gap between the inner cores 1 to make the cross section of the cable more rounded. At the same time, the glass fiber rope is flame retardant, which improves the safety of the cable. The inner core 1 is wrapped with an inner sheath 6 on the outside. When the protective layer 2 is poured during cable production, the inner sheath 6 can protect the inner core 1 from being damaged. At the same time, the inner sheath 6 separates the inner core 1 and the protective layer 2, so that the inner core 1 is not easily damaged when the protective layer 2 is peeled off.
[0038] Reference Figure 2 The protective layer 2 includes a waterproof layer 21, an armor layer 22 and an outer sheath 23. The waterproof layer 21 is wrapped on the outside of the inner sheath 6. The waterproof layer 21 is a water-blocking aramid yarn layer with a good waterproof effect, so that the non-connected parts of the cable can be well waterproofed. The armor layer 22 is wrapped on the outside of the waterproof layer 21. The armor layer 22 is a mesh structure, which makes the cable have good compression and tension resistance, thereby playing a better protective role on the inner core 1. The armor layer 22 is arranged on the outside of the waterproof layer 21 to prevent the armor layer 22 from scratching the inner core 1. The outer sheath 23 is made of insulating rubber material. The outer sheath 23 is wrapped on the outside of the armor layer 22, making the cable look more beautiful. At the same time, the rubber material has a good buffering effect, which can offset the influence of the external force on the inner core 1, thereby better protecting the inner core 1.
[0039] Referring to Fig. 3, an outer sleeve sliding tube 7 and an inner sleeve sliding tube 8 are fixedly provided on the outside of the outer sheath 23 near both ends of the cable. The inner sleeve sliding tube 8 and the outer sleeve sliding tube 7 are at a certain distance from the cable end. An inner sleeve limiting plate extending outward is fixedly provided at one end of the inner sleeve sliding tube 8 near the cable end. The connecting inner sleeve 3 is slidably connected to the inner sleeve sliding tube 8. An outer sleeve limiting plate extending outward is fixedly provided at one end of the outer sleeve sliding tube 7 near the cable end. The connecting outer sleeve 4 is slidably connected to the outer sleeve sliding tube 7. When the cable ends need to be connected, the connecting outer sleeve 4 is slid along the outer sleeve sliding tube 7 away from the cable end, and the connecting inner sleeve 3 is slid along the inner sleeve sliding tube 8 away from the cable end, so that the cable end is exposed, which is convenient for the operator to peel off the protective layer 2.
[0040] Reference Figure 3 and Figure 4 A circular cavity 41 is provided inside the connecting sleeve 4, an external threaded sleeve 42 is slidably connected inside the cavity 41, a circular groove is provided on the outer circumferential surface of the connecting sleeve 4, the groove is connected to the cavity 41, an internal threaded sleeve 43 is rotatably connected in the groove, and the internal threaded sleeve 43 is connected to the external threaded sleeve 42 through threads. A connecting rod 44 is fixedly connected to the side of the external threaded sleeve 42 near the cable end, and a slider 45 is connected to the end of the connecting rod 44 away from the external threaded sleeve 42. A sliding hole 411 along the cable axis direction is opened on the inner surface of the connecting outer sleeve 4, and the sliding hole 411 connects the inner surface of the external threaded sleeve 42 and the cavity 41. The slider 45 is slidably connected in the sliding hole 411. A through hole 441 is opened on the side of the connecting rod 44 connected to the slider 45, and the through hole 441 is perpendicular to the axis of the cable. A guide rod 451 is fixedly arranged on the surface of the slider 45, and the guide rod 451 is slidably connected in the through hole 441. A spring 452 is sleeved on the outside of the guide rod 451, and the two ends of the spring 452 are respectively fixed on the connecting rod 44 and the slider 45. A sliding groove 31 is opened on the circumferential surface of the connecting inner sleeve 3, and the slider 45 is inclined near the cable end. When the spring 452 is at its original length, the slider 45 passes through the sliding hole 411. When connecting the cables, after the inner core 1 of the cable is wound together, the connecting inner sleeve 3 is inserted into the connecting outer sleeve 4, and the connecting inner sleeve 3 presses the slider 45 into the sliding hole 411, compressing the spring 452 until the slider 45 is opposite to the sliding hole 411, and the spring 452 rebounds to press the slider 45 into the sliding groove 31, and then the internal threaded sleeve 43 is rotated, and the internal threaded sleeve 43 drives the external threaded sleeve 42 to slide in the cavity 41, thereby driving the connecting rod 44 and the slider 45 to move away from the cable end until the slider 45 is pressed against the edge of the sliding groove 31, thereby tightly fixing the connecting outer sleeve 4 and the connecting inner sleeve 3, thereby sealing the cable connection.
[0041] Reference Figure 3 , Figure 5 and Figure 7A guide rod 46 is fixedly connected to the end of the external threaded sleeve 42 away from the connecting rod 44, and a connecting inclined slide rail 461 is provided at the end of the guide rod 46 away from the external threaded sleeve 42. A connecting hole 412 facing the inner core 1 is provided in the cavity 41, and a clamping plate 47 is slidably connected in the connecting hole 412. One end of the clamping plate 47 located in the cavity 41 is fixedly connected to an inclined slide member 471, and the inclined slide member 471 is slidably connected in the inclined slide rail 461. When cable connection is required, the connecting inner sleeve 3 is inserted into the connecting outer sleeve 4, and the inner threaded sleeve is rotated to drive the outer threaded sleeve 42 to move away from the cable end, thereby driving the guide rod 46 to move, thereby driving the inclined slide 471 to move in the inclined slide rail 461, thereby driving the clamping plate 47 to move toward the inner core 1, until the clamping plate 47 is away from one end of the cavity 41 and passes through the connecting hole 412. At this time, the edges of the clamping plate 47 and the connecting outer sleeve 4 are respectively located on the opposite sides of the outer sleeve limiting plate 71, so that the clamping plate 47 and the connecting outer sleeve 4 clamp the outer sleeve limiting plate 71, thereby sealing the gap between the outer sleeve slide tube 7 and the connecting outer sleeve 4 to prevent rainwater from entering the cable and damaging the cable.
[0042] Reference Figure 3 and Figure 6 A sliding groove 32 along the cable axis direction is provided on the end face of the connecting inner sleeve 3, and a clamping hole 33 facing the inner core 1 is provided at the bottom of the sliding groove 32. A push rod 34 is slidably connected in the sliding groove 32, and a clamping rod 35 is slidably connected in the clamping hole 33. One end of the clamping rod 35 abuts against one end of the push rod 34, and the abutting contact between the clamping rod 35 and the push rod 34 are both inclined surfaces. An elastic groove 331 is provided in the clamping hole 33, and an elastic member 332 is provided in the elastic groove 331. Both ends of the elastic member 332 are fixedly connected to the clamping rod 35 and the elastic groove 331 respectively. When the elastic member 332 is at its original length, the end of the clamping plate close to the inner core 1 is located in the clamping hole 33. When the cable is connected, when the connecting inner sleeve 3 is inserted into the connecting outer sleeve 4, the push rod 34 abuts against the inner surface of the connecting outer sleeve 4, so that the push rod 34 moves away from the cable end, thereby driving the clamping rod 35 to slide toward the inner core 1 until the clamping rod 35 slides out of the clamping hole 33. At this time, the clamping rod 35 and the edge of the connecting inner sleeve 3 clamp the inner sleeve limiting plate 81, thereby sealing the gap between the connecting inner sleeve 3 and the inner sleeve sliding tube 8, thereby preventing rainwater from entering the cable and causing damage to the cable.
[0043] The specific implementation principle of the present application is as follows: when connecting the cable, the connecting inner sleeve 3 is moved along the inner sleeve slide tube 8 in the direction away from the cable end, and the connecting outer sleeve 4 is slid along the outer sleeve corolla in the direction away from the cable end to expose the cable end, and then the protective layer 2 of the cable end is peeled off to expose the inner core 1, and then the cable inner core 1 to be connected is connected, and the insulating tape is wrapped at the connection, and then the connecting inner sleeve 3 is inserted into the connecting outer sleeve 4, so that the push rod 34 contacts the connecting outer sleeve 4 and presses the push rod 34 into the sliding groove 32, so that the clamping rod 35 and the connecting inner sleeve 3 clamp the inner sleeve limiting plate 81, and the slider 45 slides into the sliding groove 31. Then the inner threaded sleeve 43 is rotated to drive the outer threaded sleeve 42 to move away from the cable end, thereby driving the connecting rod 44 and the slider 45 to move away from the cable end, so that the slider 45 is tightly attached to the edge of the sliding groove 31, thereby clamping the connecting inner sleeve 3 and the connecting outer sleeve 4 to prevent rainwater from entering the cable connection. When the external threaded sleeve 42 moves away from the cable end, the external threaded sleeve 42 drives the connecting rod 44 to move away from the cable end, thereby driving the clamping plate 47 to move toward the inner core 1, so that the clamping plate 47 and the connecting outer sleeve 4 clamp the outer sleeve limiting plate 71, thereby blocking the gap between the connecting outer sleeve 4 and the outer sleeve sliding tube 7. Thus, the cable connection is sealed.
[0044] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.
Claims
1. A waterproof aluminum alloy cable, characterized in that: The invention comprises an inner core (1) and a protective layer (2), wherein the protective layer (2) is wrapped around the outer side of the inner core (1), and a connecting inner sleeve (3) and a connecting outer sleeve (4) are respectively arranged at both ends of the protective layer (2), a cavity (41) is provided inside the connecting outer sleeve (4), an external threaded sleeve (42) is slidably connected inside the cavity (41), an internal threaded sleeve (43) is rotatably connected to the outer surface of the connecting outer sleeve (4), the internal threaded sleeve (43) is threadedly connected to the external threaded sleeve (42), and the external threaded sleeve (43) is threadedly connected to the external threaded sleeve (42). 2) A connecting rod (44) is connected to one side close to the edge of the cable, a sliding hole (411) is provided on the inner surface of the outer screw sleeve along the cable axis direction, a sliding block (45) is connected to the end of the connecting rod (44) away from the connecting outer sleeve (4), the sliding block (45) is slidably connected in the sliding hole (411), and the sliding block (45) can pass through the slot to reach the inner surface of the outer screw sleeve, and a sliding groove (31) is provided on the outer side of the connecting inner sleeve (3) opposite to the sliding hole (411) along the cable axis direction.
2. A waterproof aluminum alloy cable according to claim 1, characterized in that: The protective layer (2) comprises a waterproof layer (21), an armor layer (22) and an outer protective layer (23); the waterproof layer (21) is wrapped around the outside of the inner core (1); the waterproof layer (21) is a water-blocking aramid yarn layer; the armor layer (22) is wrapped around the outside of the waterproof layer (21); and the outer protective layer (23) is wrapped around the outside of the armor layer (22).
3. A waterproof aluminum alloy cable according to claim 2, characterized in that: The inner side of the outer protective layer (23) is wrapped with a plurality of inner cores (1), and the gaps between the inner cores (1) are filled with fillers (5).
4. The waterproof aluminum alloy cable according to claim 1, characterized in that: An inner cladding layer (6) is provided between the inner core (1) and the protective layer (2).
5. The waterproof aluminum alloy cable according to claim 1, characterized in that: A through hole (441) is provided at one end of a connecting slider (45) of the connecting rod (44); the slider (45) is fixedly connected to a guide rod (451); the guide rod (451) is slidably connected in the through hole (441); a spring (452) is fixedly connected to the slider (45); the other end of the spring (452) is fixedly connected to the connecting rod (44); and a side of the slider (45) close to the cable end is sloped.
6. The waterproof aluminum alloy cable according to claim 1, characterized in that: An inner sleeve sliding tube (8) and an outer sleeve sliding tube (7) are fixedly arranged on the outer side of the protective layer (2) near both ends; the connecting inner sleeve (3) is slidably connected to the outer side of the inner sleeve sliding tube (8); an inner sleeve limiting plate for limiting the sliding of the connecting inner sleeve (3) is arranged on the side of the inner sleeve sliding tube (8) near the edge of the cable; the connecting outer sleeve (4) is slidably connected to the outer side of the outer sleeve sliding tube (7); and an outer sleeve limiting plate for limiting the sliding of the outer sleeve sliding tube (7) is arranged on the side of the outer sleeve sliding tube (7) near the edge of the cable.
7. A waterproof aluminum alloy cable according to claim 6, characterized in that: The end of the external threaded sleeve (42) facing away from the connecting rod (44) is fixedly connected to a guide rail rod (46); the side surface of the end of the guide rail rod (46) facing away from the external threaded sleeve (42) is provided with an inclined slide rail (461) which is at a certain angle to the cable axis; an inclined slide member (471) is slidably connected inside the inclined slide rail (461); the inclined slide member (471) is fixedly connected to a clamping plate (47) on the side close to the inner side of the connecting sleeve (4); a connecting hole (412) connected to the cavity (41) is provided on the inner surface of the connecting sleeve (4); the clamping plate (47) is slidably connected in the connecting hole (412); when the external threaded sleeve (42) slides toward the side close to the clamping plate (47), the clamping plate (47) slides toward the inner core (1).
8. The waterproof aluminum alloy cable according to claim 6, characterized in that: The end surface of the connecting inner sleeve (3) is provided with a sliding groove (32) along the cable axis direction, the bottom of the sliding groove (32) is provided with a clamping hole (33) facing the inner core (1), a push rod (34) is slidably connected in the sliding groove (32), a clamping rod (35) is slidably connected in the clamping hole (33), the clamping rod (35) is in contact with the push rod (34) at one end close to the sliding groove (32), the push rod (34) and the clamping rod (35) are in contact at an inclined surface, and when the push rod (34) moves towards the bottom of the sliding groove (32), the clamping rod (35) moves towards the inner core (1).