Power cable and cable connecting device thereof

Abstract

The invention discloses a power cable and a cable connecting device thereof, and relates to the technical field of cables, the power cable comprises a main body assembly, the main body assembly comprises a connecting frame, an upper inlet is formed in the top end in the connecting frame, a lower inlet is formed in the bottom end in the connecting frame, the power cable further comprises an upper connecting assembly and a lower connecting assembly, and the lower connecting assembly is arranged below the main body assembly. Through mutual cooperation of a second elastic piece, a first air bag and a second air bag, when the cable is affected by the outside and shakes to cause looseness of the cable joint, the second air bag is not attached to the cable, so that the elastic potential energy of the second elastic piece is released to extrude the first air bag, and the second air bag expands to be tightly attached to the cable all the time; the tightness of cable connection is improved, and the sealing performance of the cable is ensured, so that the cable can normally transmit.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and in particular to a power cable and a cable connecting device thereof. Background Art

[0002] Power cables are cables used to transmit and distribute electrical energy. They are commonly used in urban underground power grids, power station lead-out lines, internal power supply for industrial and mining enterprises, and underwater transmission lines across rivers and seas.

[0003] When using power cables, it is often necessary to connect two power cables together. At this time, a cable connector is needed for connection. The cable connector is also called a cable head. After the cable is laid, in order to make it a continuous line, each section of the line must be connected as a whole. These connection points are called cable connectors. The cable connector in the middle of the cable line is called an intermediate connector, and the cable connectors at both ends of the line are called terminal heads. The cable connector is used to lock and fix the incoming and outgoing lines, and plays a role in waterproofing, dustproofing and vibration prevention.

[0004] The Chinese patent application number CN202410324567.8 discloses a power cable connection device. The cable connection operation is relatively complicated, and a variety of crimping and caliper tools are required. It takes a lot of time to process the connection nodes. In addition, it is difficult to control the accurate execution of its connection process standards, which makes it difficult to effectively control the connection quality of the connection nodes. The present invention consists of a locking sleeve mechanism, a lock mechanism and a conflicting seal. The power cable connection device is formed by four first sealing blocks on the first round tube being inserted between the four unfolded second sealing blocks to form a ring body, thereby increasing the sealing performance of the inner wall of the sleeve after the sleeve is connected. Finally, the first spring telescopic rod on one end of the L-shaped conflicting tooth plate on the tube is inserted between the conical arc plate and the baffle to fix the sleeve and the sleeve after docking. The installation is simple and convenient. However, the patent is affected by the outside world. The cable exposed to the external environment for a long time may be affected by external forces such as wind, earthquake, and traffic vibration. The sealing performance of the cable cannot be guaranteed, which may easily lead to loosening of the cable connection and affect the use of the cable.

[0005] When the existing cable connecting device is in use, the cable is easy to fall off or break from the connecting device, and the stability of the cable connection is poor. Cables exposed to the external environment for a long time may be affected by external forces such as wind, earthquakes, and traffic vibrations. The sealing of the cable cannot be guaranteed, which can easily cause the cable connection to loosen and affect the use of the cable.

[0006] Therefore, a power cable and a cable connecting device thereof are proposed to solve the above problems. Summary of the invention

[0007] The object of the present invention is to provide a power cable and a cable connecting device thereof, so as to solve the problems that the cable connecting device proposed in the above background technology is easy to fall off or break from the connecting device when in use, and the stability of the cable connection is poor.

[0008] To achieve the above object, the present invention provides the following technical solution: a power cable, comprising two cables, each of which has a sheath on its surface, a conductor inside the cable, and the two conductors are connected to each other.

[0009] A cable connection device, comprising a main body component, the main body component comprising a connection frame, the top end of the connection frame is provided with an upper inlet, the bottom end of the connection frame is provided with a lower inlet, and further comprising:

[0010] An upper connection assembly, the upper connection assembly is arranged above the main assembly, the upper connection assembly includes an upper connection head, the upper connection head is connected to the upper side of the connection frame, and the upper connection head is used to connect the cable;

[0011] The lower connecting component is arranged below the main body component, and the lower connecting component includes a lower connecting head, which is connected to the bottom of the connecting frame and is used to connect the cable.

[0012] Preferably, the top end of the lower connecting head is fixedly connected to a lower connecting plate, the top end of the lower connecting plate is fixedly connected to a lower plug connector, a threaded groove is provided on the outer wall surface of the lower plug connector, and two adjustment grooves are provided on the threaded groove near the bottom side of the lower plug connector, each of the adjustment grooves is internally connected to a first airbag, the lower plug connector is internally fixedly connected to a second airbag, and the second airbag is communicated with the first airbag through a connecting tube.

[0013] Preferably, the surface of the upper inlet is provided with two plug-in grooves, and the bottom end of each of the plug-in grooves is provided with an arc groove, and the inner wall of the lower inlet is provided with two grooves, each of the grooves is slidably connected with a convex buckle, and a second elastic member is movably connected between the convex buckle and the groove, and the bottom end of the convex buckle is provided with a sloped surface on the side away from the second elastic member.

[0014] Preferably, the main body component also includes a water-blocking groove, which is arranged on the surface of the top and bottom ends of the connecting frame, and two slide grooves are provided on the inner wall surface of the connecting frame near the lower inlet. The inner wall of the connecting frame is movably connected to two movable blocks, and the outer wall of each movable block is fixedly connected to a sliding block, and the sliding block is slidably inserted into the interior of the sliding groove. The top of each movable block is fixedly connected to a limiting rod, and the outer wall of the limiting rod is movably connected to a first elastic member, and one end of the first elastic member is fixed to the top of the movable block.

[0015] Preferably, the bottom end of the upper connector is fixedly connected to an upper connecting plate, the bottom end of the upper connecting plate is fixedly connected to an upper plug connector, the outer wall of the upper plug connector is fixedly connected to two limit blocks, and a limit hole is provided on the surface of each limit block.

[0016] Preferably, the upper plug connector is slidably inserted into the interior of the upper inlet, the lower plug connector is slidably inserted into the interior of the lower inlet, the limit rod is slidably inserted into the interior of the limit hole, and the limit block is inserted into the interior of the arc groove through the plug groove.

[0017] Preferably, the top surface of the lower plug connector is fitted with the bottom surface of the movable block, and two anti-wear plates are provided inside the upper inlet, and the surface of each of the anti-wear plates is fitted with the outer wall of the upper plug connector, and the interiors of the upper and lower connectors are movably connected to the cable, and the inner wall surfaces of the upper and lower connectors are fixedly connected with multiple arc buckles, and each of the arc buckles is stuck in the inside of the sheath on the cable surface.

[0018] Preferably, the convex buckle is slidably inserted into the interior of the threaded groove, and the bottom end of the upper connecting plate and the top end of the lower connecting plate are fixedly connected with a water-blocking ring, and the water-blocking ring is movably inserted into the interior of the water-blocking groove.

[0019] Preferably, the outer walls of the upper connecting plate and the lower connecting plate are each provided with two assembly holes, the interior of each assembly hole is movably connected with an assembly rod, and the upper connecting component and the lower connecting component are threadedly connected via the assembly rod.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention cooperates with the limiting rod and the limiting hole so that when the device is in use, the movable block can be pushed by the lower plug-in joint, so that the movable block drives the limiting rod to move upward, so that the limiting rod is inserted into the inside of the limiting hole, thereby limiting the limiting hole, making it impossible for the upper connector to be directly pulled out from the upper inlet, thereby improving the stability of the device.

[0022] 2. The present invention cooperates with the second elastic member, the first airbag and the second airbag. When the cable is affected by the outside world and shakes, causing the cable connection to become loose, the second airbag will not fit the cable, so that the elastic potential energy of the second elastic member is released to squeeze the first airbag, causing the second airbag to expand and fit tightly against the cable, thereby improving the tightness of the cable connection and ensuring the sealing of the cable, thereby allowing the cable to transmit normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall explosion structure of the present invention;

[0025] Figure 3 It is a schematic cross-sectional structure diagram of the explosion of the main assembly of the present invention;

[0026] Figure 4 It is a top view of the cross section of the arc groove of the present invention;

[0027] Figure 5 This is a schematic diagram of the thread groove structure of the present invention;

[0028] Figure 6 It is a schematic cross-sectional structure diagram of the connecting frame of the present invention;

[0029] Figure 7 It is a cross-sectional front view of the connecting frame of the present invention;

[0030] Figure 8 It is a cross-sectional side view of the connecting frame of the present invention;

[0031] Fig. 9 For the present invention Figure 8 Schematic diagram of the local structure of part A;

[0032] Fig.10 It is a schematic diagram of the convex buckle structure of the present invention.

[0033] In the figure: 1. main component; 11. connecting frame; 12. upper inlet; 13. lower inlet; 14. water-blocking groove; 15. slide groove; 16. movable block; 17. slider; 18. first elastic member; 19. limiting rod; 110. groove; 111. arc groove; 112. plug-in groove; 113. convex buckle; 114. second elastic member; 115. inclined surface; 2. upper connecting component; 21. upper connector; 22. upper connecting plate; 23. upper plug-in connector; 24. limiting block; 25. limiting hole; 3. lower connecting component; 31. lower connector; 32. lower connecting plate; 33. lower plug-in connector; 34. threaded groove; 35. adjusting groove; 36. first airbag; 37. second airbag; 4. cable; 5. assembly rod; 6. assembly hole; 7. conductor; 8. anti-wear plate; 9. water-blocking ring. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] Embodiment 1

[0036] like Figures 1 to 10As shown, a cable connecting device includes a main body component 1, the main body component 1 includes a connecting frame 11, the top of the connecting frame 11 is provided with an upper inlet 12, the bottom of the connecting frame 11 is provided with a lower inlet 13, and also includes: an upper connecting component 2, the upper connecting component 2 is arranged above the main body component 1, the upper connecting component 2 includes an upper connecting head 21, the upper connecting head 21 is connected to the top of the connecting frame 11, the upper connecting head 21 is used to connect the cable 4, the inner wall of the lower inlet 13 is provided with two grooves 110, each groove 110 is slidably connected with a convex buckle 113, a second elastic member 114 is movably connected between the convex buckle 113 and the groove 110, a slope 115 is provided on the side of the bottom end of the convex buckle 113 away from the second elastic member 114, the surface of the upper inlet 12 is provided with two plug-in grooves 112, and the bottom end of each plug-in groove 112 is provided with an arc groove 111.

[0037] like Figures 1 to 8 As shown, the main component 1 also includes a water-blocking groove 14, which is arranged on the surface of the top and bottom ends of the connecting frame 11. Two slide grooves 15 are arranged on the inner wall surface of the connecting frame 11 near the lower inlet 13. The slide groove 15 is arranged in a T shape. The inner wall of the connecting frame 11 is movably connected to two movable blocks 16. The outer wall of each movable block 16 is fixedly connected with a slider 17. The slider 17 is arranged in a T shape. The slider 17 is slidably inserted into the interior of the slide groove 15. The slider 17 can slide in the slide groove 15. The top of each movable block 16 is fixedly connected to a limiting rod 19. The outer wall of the limiting rod 19 is movably connected with a first elastic member 18. One end of the first elastic member 18 is fixed to the top of the movable block 16.

[0038] Through the cooperation between the limiting rod 19 and the limiting hole 25, when the device is in use, the movable block 16 can be pushed by the lower plug joint 33, so that the movable block 16 drives the limiting rod 19 to move upward, so that the limiting rod 19 is inserted into the limiting hole 25, thereby limiting the limiting hole 25, so that the upper connector 21 cannot be directly pulled out from the upper inlet 12, thereby improving the stability of the device.

[0039] like Figures 1 to 4As shown, the upper connecting component 2 is arranged above the main component 1, and the upper connecting component 2 includes an upper connecting head 21, which is connected to the upper part of the connecting frame 11, and the upper connecting head 21 is arranged at the upper position of the connecting frame 11. The bottom end of the upper connecting head 21 is fixedly connected to the upper connecting plate 22, and the bottom end of the upper connecting plate 22 is fixedly connected to the upper plug connector 23. The outer wall of the upper plug connector 23 is fixedly connected to two limit blocks 24, each of which is slidably connected to the inner wall of the plug groove 112, and the surface of each limit block 24 is provided with a limit hole 25. The upper plug connector 23 is slidably inserted into the interior of the upper inlet 12, and the lower plug connector 33 is slidably inserted into the interior of the lower inlet 13. The limit rod 19 is slidably inserted into the inner wall of the limit hole 25. The limit blocks 24 are inserted into the arc groove 111 through the plug-in groove 112, the top surface of the lower plug joint 33 is fitted with the bottom surface of the movable block 16, and two anti-wear plates 8 are provided inside the upper inlet 12. The anti-wear plates 8 are arranged in an arc shape, and the surface of each anti-wear plate 8 is fitted with the outer wall of the upper plug joint 23. The protrusions 113 are slidably inserted into the interior of the threaded groove 34, and the bottom end of the upper connecting plate 22 and the top end of the lower connecting plate 32 are fixedly connected with a water-blocking ring 9, and the water-blocking rings 9 are movably inserted into the interior of the water-blocking groove 14. The outer walls of the upper connecting plate 22 and the lower connecting plate 32 are provided with two assembly holes 6, and the interior of the assembly holes 6 is movably connected with assembly rods 5, and the upper connecting component 2 and the lower connecting component 3 are threadedly connected through the assembly rod 5.

[0040] like Figures 2 to 5 As shown, the lower connecting component 3 is arranged below the main component 1, and the lower connecting component 3 includes a lower connecting head 31, which is connected to the bottom of the connecting frame 11, and is arranged at the lower position of the connecting frame 11. The lower connecting head 31 is used to connect the cable 4, and the top of the lower connecting head 31 is fixedly connected with a lower connecting plate 32, and the top of the lower connecting plate 32 is fixedly connected with a lower plug connector 33, and the outer wall surface of the lower plug connector 33 is provided with a threaded groove 34.

[0041] Through the cooperation of the upper connector 21 and the lower connector 31, when the device is in use, the cable 4 can be connected to the interior of the upper connector 21 and the lower connector 31, and then the upper plug connector 23 and the lower plug connector 33 are respectively inserted into the interior of the upper inlet 12 and the lower inlet 13. When the stop block 24 drops to the position of the arc groove 111, the upper connector 21 is rotated to rotate the upper plug connector 23 inside the upper inlet 12, and the stop block 24 is rotated ninety degrees, and then the lower plug connector 33 is inserted into the lower inlet. 13, the lower plug joint 33 contacts the inclined surface 115 of the convex buckle 113, and the lower plug joint 33 squeezes the inclined surface 115, so that the convex buckle 113 squeezes the second elastic member 114 to retract into the inside of the groove 110, so that the lower connector 31 is inserted into the inside of the lower inlet 13. At this time, the convex buckle 113 is ejected by the elastic potential energy of the second elastic member 114 and is stuck in the inside of the thread groove 34. As the lower connector 31 rotates and rises, the inclined surface 115 on the surface of the convex buckle 113 hits the thread groove 34. The upper connector 21 is fixed to the upper inlet 12 by the assembling rod 5 and the assembling hole 6. The assembling rod 5 is inserted into the assembling hole 6 to fix the upper connector 21 and the lower connector 31 ...lies 2 and 3 are prevented from loosening or rotating due to accidental contact. When the upper connector 23 and the lower connector 33 are inserted, the water barrier 9 is inserted into the water barrier 14. The water barrier 14 has good waterproof function

[0042] Through the cooperation between the limiting rod 19 and the limiting hole 25, when the device is in use, the movable block 16 can be pushed by the lower plug joint 33, so that the movable block 16 drives the limiting rod 19 to move upward, so that the limiting rod 19 is inserted into the limiting hole 25, thereby limiting the limiting hole 25, so that the upper connector 21 cannot be directly pulled out from the upper inlet 12, thereby improving the stability of the device.

[0043] Embodiment 2

[0044] Cable 4 is affected by the outside world. Cable 4 that is exposed to the outside world for a long time may be affected by external forces such as wind, earthquake, and traffic vibration. The sealing of cable 4 cannot be guaranteed, which may easily lead to loose connection of cable 4 and affect the use of cable 4.

[0045] Based on the above embodiments, Figures 2 to 10As shown, a thread groove 34 is provided on the outer wall surface of the lower plug connector 33, and two adjustment grooves 35 are provided near the bottom side of the thread groove 34 near the lower plug connector 33. The lower plug connector 33 is fully inserted into the lower inlet 13, and the two protruding buckles 113 correspond to the two adjustment grooves 35 respectively. A first air bag 36 is connected to the inside of each adjustment groove 35, and a second air bag 37 is fixedly connected to the inside of the lower plug connector 33. The second air bag 37 is insulating, and the second air bag 37 is in contact with the surface sheath of the cable 4. The second air bag 37 is connected to the first air bag 36 through a connecting pipe.

[0046] like Fig. 9 , Fig.10 As shown, the inner wall of the lower inlet 13 is provided with two grooves 110, and a convex buckle 113 is slidably connected inside each groove 110. A second elastic member 114 is movably connected between the convex buckle 113 and the groove 110. The elasticity of the second elastic member 114 can support the convex buckle 113, and a slope 115 is provided on the side of the bottom end of the convex buckle 113 away from the second elastic member 114.

[0047] The cable 4 is inserted into the lower connector 31, and the second airbag 37 is fitted with the surface sheath of the cable 4. The second airbag 37 performs preliminary positioning on the cable 4. When the lower plug connector 33 is fully inserted into the lower inlet 13, the two convex buckles 113 correspond to the two adjustment grooves 35 respectively. The convex buckles 113 are elastically popped out by the second elastic member 114 and stuck into the adjustment groove 35, squeezing the first airbag 36 at the same time. The gas inside the first airbag 36 is pressurized to flow to the second airbag 37, so that the gas inside the second airbag 37 increases and expands, further fixing the cable 4 and preventing the cable 4 from detaching from the lower plug connector 33. On the one hand, the lower plug connector 33 is prevented from detaching from the lower inlet 13 by limiting the adjustment groove 35 and the convex buckle 113, thereby improving the connection stability of the cable 4. On the other hand, the convex buckle 113 squeezes the first airbag 36 The airbag 36 allows the gas inside the first airbag 36 to flow into the second airbag 37, so that the gas in the second airbag 37 increases and expands, further fixing the cable 4 to prevent the cable 4 from being separated from the lower plug connector 33. When the cable 4 is affected by the outside world and shakes, causing the connection of the cable 4 to become loose, the second airbag 37 is not in contact with the cable 4, and a gap appears between the second airbag 37 and the sheath of the cable 4, so that the elasticity of the second elastic member 114 can squeeze the first airbag 36. The gas inside the first airbag 36 flows into the second airbag 37, so that the gas inside the second airbag 37 increases and expands, so that the cable 4 is always closely fitted. The elasticity of the second elastic member 114 always squeezes the first airbag 36, thereby improving the tightness of the connection of the cable 4 and ensuring the sealing of the cable 4, thereby allowing the cable 4 to be transmitted normally.

[0048] like Figures 1 to 10As shown, an electric power cable, the interiors of the upper connector 21 and the lower connector 31 are movably connected to the cable 4, the surface of the cable 4 is provided with a sheath, the interior of the cable 4 is provided with a conductor 7, the two conductors 7 are movably inserted into the interior of the connecting frame 11, the two conductors 7 are connected to each other, and the inner wall surfaces of the upper connector 21 and the lower connector 31 are fixedly connected with a plurality of arc buckles, which are all stuck in the interior of the sheath on the surface of the cable 4.

[0049] When the power cable is in use, the cable 4 is first inserted into the upper connector 21 and the lower connector 31. A plurality of arc buckles are fixedly connected through the inner wall surfaces of the upper connector 21 and the lower connector 31. The arc buckles are all inserted into the sheath on the surface of the cable 4, so that the two conductors 7 are connected to each other, the cable 4 is quickly connected, and the connection safety of the cable 4 is improved.

[0050] Through the cooperation between the second elastic member 114, the first airbag 36 and the second airbag 37, when the cable 4 is affected by the outside world and shakes, causing the connection of the cable 4 to become loose, the second airbag 37 will not fit the cable 4, so that the elastic potential energy of the second elastic member 114 is released to squeeze the first airbag 36, so that the second airbag 37 expands and always fits tightly with the cable 4, thereby improving the tightness of the connection of the cable 4 and ensuring the sealing of the cable 4, thereby allowing the cable 4 to transmit normally.

[0051] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A power cable, characterized in that: It comprises two cables (4), the surface of each cable (4) is provided with a sheath, the interior of the cable (4) is provided with a conductor (7), and the two conductors (7) are connected to each other.

2. A cable connection device, used for a power cable as claimed in claim 1, comprising a main assembly (1), wherein the main assembly (1) comprises a connecting frame (11), wherein the top end of the connecting frame (11) is provided with an upper inlet (12), and the bottom end of the connecting frame (11) is provided with a lower inlet (13), wherein: Also includes: An upper connection component (2), the upper connection component (2) being arranged above the main component (1), the upper connection component (2) comprising an upper connection head (21), the upper connection head (21) being connected to the upper part of the connection frame (11), the upper connection head (21) being used to connect the cable (4); A lower connecting component (3), the lower connecting component (3) is arranged below the main component (1), the lower connecting component (3) comprises a lower connecting head (31), the lower connecting head (31) is connected to the bottom of the connecting frame (11), and the lower connecting head (31) is used to connect the cable (4).

3. The cable connection device according to claim 2, characterized in that: The top end of the lower connector (31) is fixedly connected to a lower connecting plate (32), the top end of the lower connecting plate (32) is fixedly connected to a lower plug connector (33), a thread groove (34) is provided on the outer wall surface of the lower plug connector (33), the thread groove (34) is provided with two adjustment grooves (35) near the bottom side of the lower plug connector (33), each of the adjustment grooves (35) is internally connected to a first air bag (36), the interior of the lower plug connector (33) is fixedly connected to a second air bag (37), and the second air bag (37) is connected to the first air bag (36) through a connecting pipe.

4. The cable connection device according to claim 3, characterized in that: The surface of the upper inlet (12) is provided with two plug-in grooves (112), and the bottom end of each of the plug-in grooves (112) is provided with an arc-shaped groove (111). The inner wall of the lower inlet (13) is provided with two grooves (110), and each of the grooves (110) is slidably connected with a convex buckle (113). A second elastic member (114) is movably connected between the convex buckle (113) and the groove (110), and a slope (115) is provided on a side of the bottom end of the convex buckle (113) away from the second elastic member (114).

5. The cable connection device according to claim 4, characterized in that: The main body component (1) also includes a water-blocking groove (14), which is arranged on the surface of the top and bottom ends of the connecting frame (11). Two slide grooves (15) are provided on the inner wall surface of the connecting frame (11) near the lower inlet (13). The inner wall of the connecting frame (11) is movably connected to two movable blocks (16). The outer wall of each movable block (16) is fixedly connected to a slider (17). The slider (17) is slidably inserted into the interior of the slide groove (15). The top of each movable block (16) is fixedly connected to a limiting rod (19). The outer wall of the limiting rod (19) is movably connected to a first elastic member (18). One end of the first elastic member (18) is fixed to the top of the movable block (16).

6. The cable connection device according to claim 5, characterized in that: The bottom end of the upper connector (21) is fixedly connected to an upper connecting plate (22), the bottom end of the upper connecting plate (22) is fixedly connected to an upper plug connector (23), the outer wall of the upper plug connector (23) is fixedly connected to two limit blocks (24), and a limit hole (25) is provided on the surface of each limit block (24).

7. The cable connection device according to claim 6, characterized in that: The upper plug connector (23) is slidably inserted into the interior of the upper inlet (12), the lower plug connector (33) is slidably inserted into the interior of the lower inlet (13), the limiting rod (19) is slidably inserted into the interior of the limiting hole (25), and the limiting block (24) is inserted into the interior of the arc groove (111) through the plug groove (112).

8. The cable connection device according to claim 7, characterized in that: The top surface of the lower plug connector (33) is fitted with the bottom surface of the movable block (16); two anti-wear plates (8) are provided inside the upper inlet (12); the surface of each anti-wear plate (8) is fitted with the outer wall of the upper plug connector (23); the interior of the upper connector (21) and the lower connector (31) are movably connected to the cable (4); the inner wall surfaces of the upper connector (21) and the lower connector (31) are fixedly connected with a plurality of arc buckles; each of the arc buckles is snapped into the inside of a sheath on the surface of the cable (4).

9. The cable connection device according to claim 8, characterized in that: The convex buckle (113) is slidably inserted into the interior of the threaded groove (34), and the bottom end of the upper connecting plate (22) and the top end of the lower connecting plate (32) are fixedly connected with a water-blocking ring (9), and the water-blocking ring (9) is movably inserted into the interior of the water-blocking groove (14).

10. The cable connection device according to claim 9, characterized in that: The outer walls of the upper connecting plate (22) and the lower connecting plate (32) are each provided with two assembly holes (6), each assembly hole (6) is movably connected to an assembly rod (5), and the upper connecting component (2) and the lower connecting component (3) are threadedly connected via the assembly rod (5).

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