A high-safety power cable connector assembly

Abstract

The present invention relates to the field of cable connection technology, and specifically proposes a high-safety power cable connector assembly, including a connector sleeve, an arc-shaped bracket, a wire groove and a compression sealing unit. The present invention separates adjacent wires through the wire grooves on the two arc-shaped brackets, which not only avoids the electromagnetic interference caused by the electromagnetic field interaction between adjacent wires, affecting the stability of signal transmission, but also makes the wires neatly arranged and compressed, avoiding the problem of disconnection of the wire connection due to shaking during use, and the upper and lower half-tubes are used to cover and press the limit plug-in locking unit and the compression sealing unit and the two arc-shaped brackets, and the two half-tubes are connected and compressed and sealed by the locking member, which not only further improves the sealing of the cable connection, but also enables the cable to obtain multiple compression connections under the connection action of the connector assembly, improves the firmness of the cable connection, and thus ensures the safety and stability of the cable use.

Description

Technical Field

[0001] The invention relates to the technical field of cable connection, and specifically proposes a high-safety power cable connector assembly. Background Art

[0002] Power cable joint assemblies are key components used to connect two or more cables, ensuring safe and efficient transmission of power, and providing insulation protection, electrical isolation, and the ability to withstand mechanical stress.

[0003] Some existing technologies have also proposed some improvements related to the power cable connector assembly. For example, the Chinese invention patent with publication number CN116315866B discloses a power cable connector, which is provided with a quick connection or disconnection mechanism, and can complete the connection between two cables with one hand operation, which can effectively improve the convenience of connection between the two cables.

[0004] A Chinese utility model patent with publication number CN205724001U discloses a high-security power cable connector assembly. The high-security power cable connector assembly can firmly clamp the installation wire inside the anti-breakdown chamber by adding a cable clamp structure with a blunt knife edge. The anti-breakdown material made of a mixture of quartz powder and epoxy resin materials is used in combination with a water-absorbing insulating material to avoid the influence of moisture on the performance of the device, so that the anti-breakdown material can exert stronger performance and improve the installation performance of the device.

[0005] Although the above technical solution solves some problems in the connection and installation of specific power cables, the following technical problems still exist: First, the above solution can only roughly press and lock the ends of the two sections of the cable. The connection between the wires of the two sections of the cable in the connecting component is prone to contact and cause a short circuit, and the short distance between the wires is prone to generate a magnetic field during operation, thereby affecting the stability of signal transmission; second, the sealing effect of the connection between the two sections of the cable needs to be improved, and the cable will be affected by mechanical stresses such as tension, pressure, and bending during use depending on the different use environments. Therefore, the firmness of the connection between the two sections of the cable by the connector assembly needs to be improved. Summary of the invention

[0006] In view of the above problems, an embodiment of the present application provides a high-safety power cable connector assembly to solve the technical problems in the related art.

[0007] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solutions: a high-security power cable connector assembly, which is used to connect two cables, and each end of the two cables has three wires. The end of the wire is slidably sleeved with a connector, and the connectors corresponding to the two cables cooperate with each other to seal and lock the twisted joint after the wires are twisted. The cable connector assembly includes: a connector sleeve, which is composed of two half-tubes and locking parts that lock and fix the two ends of the two half-tubes. The two half-tubes cooperate to form a tubular structure with tapered ends. The two ends of the connector sleeve are respectively sleeved on the two cables for sealing and fixing the connection parts of the two cables. A rubber sealing unit is provided on the connector sleeve.

[0008] There are two arc-shaped brackets, and three wire-clip grooves are arranged evenly along the radial direction on the top of the arc-shaped bracket. The three wires of the cable are respectively clamped in the three wire-clip grooves of the same arc-shaped bracket. The connector is located between the two arc-shaped brackets, and the connector is tightly pressed against the corresponding arc-shaped bracket.

[0009] The inner wall of the half-tube located on the upper side is equipped with a compression sealing unit through an elastic pressure piece, which is plugged into and matched with the tops of the two arc-shaped brackets. A limiting plug-in locking unit is installed between the two half-tubes to axially limit the two arc-shaped brackets and press the compression sealing unit against the arc-shaped brackets.

[0010] In a possible implementation, the locking member is a conical ring sleeve, the large-diameter end of the conical ring sleeve faces the joint sleeve, and the inner wall of the conical ring sleeve is connected to the outer wall of the conical section of the half pipe by threaded fitting.

[0011] In a possible implementation, the rubber sealing unit includes semi-arc rubber sheets installed on the inner walls of both ends of the half pipe arranged along the axial direction, and sealing gaskets are installed on both end surfaces of the half pipe located at the lower side close to the other half pipe.

[0012] In one possible implementation, the compression sealing unit includes an upper arc pressure seat, which is an arc-shaped structure protruding upward. The lower end surface of the upper arc pressure seat is provided with clamping grooves which are evenly arranged along its radial direction and correspond one to one with the wire clamping grooves. The clamping grooves are an arc-shaped structure with diameters at both ends smaller than the diameter of the middle part. The opposing surfaces of the two arc-shaped support seats are installed with arc-shaped frames, and the opposing surfaces of the two arc-shaped frames are installed with sealing rubber counter-pieces. The lower end surface of the upper arc pressure seat and the small-diameter inner wall of the clamping groove are installed with insulating rubber gaskets. The upper arc pressure seat is plugged into the two arc-shaped support seats and the arc frame through plug-in matching limit members.

[0013] In one possible implementation, the plug-in matching limit member includes a plug-in groove opened on the top of the arc-shaped bracket and arranged alternately with the wire clamping groove, and the tops of the two arc-shaped frames are also provided with a plug-in groove, and the lower end face of the upper arc pressure seat is installed with a plug-in limit plate corresponding to the plug-in groove one by one.

[0014] In one possible implementation, the elastic pressure member includes a pressure spring rod installed on the inner wall of the upper half tube, a receiving groove is provided on the top of the arc-shaped side wall of the upper arc pressure seat, and the end of the pressure spring rod away from the half tube is connected to the receiving groove.

[0015] In one possible implementation, the limiting plug-in locking unit includes an insert block installed together at the bottom of an arc-shaped frame and an arc-shaped bracket connected to it, the lower ends of the two insert blocks on the opposite sides are arc-shaped, and a slot for plugging with the two insert blocks is provided on the inner wall of the lower half-tube, and a rectangular groove arranged alternately with the wire clamping groove is provided on the top of the side of the arc-shaped bracket away from the arc-shaped frame, and an insert rod corresponding to the rectangular groove one by one is installed on the inner wall of the upper half-tube.

[0016] In a possible implementation, the arc-shaped bracket is installed with isolation balls arranged in an alternating manner with the cable clamping grooves on the end surface close to the cable.

[0017] In a possible implementation, rubber gaskets are installed at the tapered transition points of the inner walls of the two half-tubes.

[0018] The above one or more technical solutions in the embodiments of the present invention have at least one of the following beneficial effects: 1. A high-security power cable connector assembly designed by the present invention separates adjacent wires through the wire clamping grooves on the two arc-shaped brackets, which can not only avoid the electromagnetic interference caused by the electromagnetic field interaction between adjacent wires and affect the stability of signal transmission, but also enable the wires to be neatly arranged and pressed to avoid the wire connections being disconnected due to shaking during use, and the limiting plug-in locking unit and the compression sealing unit and the two arc-shaped brackets are covered and pressed and locked by the upper and lower half-tubes, and the two half-tubes are connected and compressed and sealed by the locking piece, which not only further improves the sealing of the two cable connections, but also enables the two cables to obtain multiple compression connections under the connecting action of the connector assembly, thereby improving the firmness of the cable connection, effectively preventing the problem of disconnection at the connection when the cable is subjected to force, and improving the safety and stability of the cable during use.

[0019] 2. The limiting plug-in locking unit in the present invention can not only realize the support and fixation of the two half-tubes to the arc-shaped bracket, but also realize the closed positioning of the two half-tubes in the process of plugging and matching the upper and lower half-tubes with the arc-shaped bracket, further improving the accuracy and sealing of the closure of the two half-tubes.

[0020] 3. The present invention limits the conductor and the connector along the radial direction of the arc-shaped bracket by cooperating with the compression sealing unit and the two arc-shaped brackets, thereby further improving the firmness of the connection between the two sections of the cable and preventing the connection of the conductor from being separated due to force when the cable is subjected to tension or other mechanical stresses, thereby affecting the normal use of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the cable connector assembly of the present invention.

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure when the locking member of the present invention does not lock the two half-pipe ends.

[0024] Figure 3 It is a partial three-dimensional structural schematic diagram of the present invention.

[0025] Figure 4 It is a schematic diagram of the partial structure of the compression sealing unit of the present invention.

[0026] Figure 5 The present invention Figure 1 sectional view of .

[0027] 1. Cable; 2. Wire; 3. Connector; 4. Connector sleeve; 5. Connector sleeve; 6. Connector sleeve; 7. Connector sleeve; 8. Connector sleeve; 9. Connector sleeve; 10. Connector sleeve; 11. Connector sleeve; 12. Connector sleeve; 13. Connector sleeve; 14. Connector sleeve; 15. Connector sleeve; 16. Connector sleeve; 17. Connector sleeve; 18. Connector sleeve; 19. Connector sleeve; 20. Connector sleeve; 21. Connector sleeve; 22. Connector sleeve; 23. Connector sleeve; 24. Connector sleeve; 25. Connector sleeve; 26. Connector sleeve; 27. Connector sleeve; 28. Connector sleeve; 29. ​​Connector sleeve; 30. Connector sleeve; 31. Connector sleeve; 32. Connector sleeve; 33. Connector sleeve; 34. Connector sleeve; 35. Connector sleeve; 36. Connector sleeve; 37. Connector sleeve; 38. Connector sleeve; 39. Connector sleeve; 40. Connector sleeve; 41. Connector sleeve; 42. Connector sleeve; 43. Connector sleeve; 44. Connector sleeve; 45. Connector sleeve; 46. Connector sleeve; 47. Connector sleeve; 48. Connector sleeve; 49. Connector sleeve; 50. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] See also Figure 1 and Figure 3 A high-security power cable joint assembly is used to connect two cables 1. The ends of the two cables 1 have three wires 10. The ends of the wires 10 are slidably sleeved with connectors 11. The connectors 11 of the two cables 1 cooperate with each other to seal and lock the twisted joint after the wires 10 are twisted. The cable joint assembly includes: Figure 1 , Figure 2 and Figure 3 , the joint sleeve 2 is composed of two half-tubes 21 and a locking piece 22 for locking and fixing the two ends of the two half-tubes 21. The two half-tubes 21 cooperate to form a tubular structure with tapered ends. The two ends of the joint sleeve 2 are respectively sleeved on the two cables 1 to seal and fix the connection parts of the two cables 1. A rubber sealing unit 23 is provided on the joint sleeve 2.

[0031] See also Figure 3 , two arc-shaped brackets 3, the top of the arc-shaped bracket 3 is provided with three wire-gripping grooves 4 evenly arranged along its radial direction, the three wires 10 of the cable 1 are respectively clamped in the three wire-gripping grooves 4 of the same arc-shaped bracket 3, the connector 11 is located between the two arc-shaped brackets 3, and the connector 11 is tightly pressed against the corresponding arc-shaped bracket 3.

[0032] See also Figure 3 , Figure 4 and Figure 5 The inner wall of the half-tube 21 located on the upper side is installed with a compression sealing unit 5 that is plugged into and fits with the tops of the two arc-shaped brackets 3 through an elastic pressure piece 7, and a limiting plug-in locking unit 6 is installed between the two half-tubes 21 to axially limit the two arc-shaped brackets 3 and press the compression sealing unit 5 against the arc-shaped bracket 3.

[0033] The wires 10 are clamped in the corresponding wire clamping grooves 4 to separate adjacent wires 10, thereby avoiding electromagnetic interference caused by electromagnetic field interaction between adjacent wires 10 and affecting the stability of signal transmission. At this time, the connector 11 is located between the two arc-shaped brackets 3, and the arc-shaped brackets 3 are moved toward the connector 11 until the two arc-shaped brackets 3 are tightly pressed against the connector 11, thereby limiting the connector 11, and then the sealing unit 5 is pressed and cooperated with the two arc-shaped brackets 3 to limit the wires 10 and the connector 11 along the radial direction of the arc-shaped brackets 3, so as to avoid the connection of the wire 10 from being detached due to force when the cable 1 is subjected to tension or other mechanical stresses.

[0034] See also Figure 2 The locking member 22 is a conical ring sleeve, the large-diameter end of the conical ring sleeve faces the joint sleeve 2, and the inner wall of the conical ring sleeve is connected to the outer wall of the conical section of the half pipe 21 by threaded matching.

[0035] See also Figure 2 , Figure 3 and Figure 5 The rubber sealing unit 23 includes semi-arc rubber sheets 230 installed on the inner walls of both ends of the half tube 21 arranged along the axial direction, and sealing gaskets 231 are installed on the two end surfaces of the half tube 21 located on the lower side close to the other half tube 21.

[0036] After the upper and lower half tubes 21 are aligned and pressed, the locking piece 22 is sleeved on the end of the half tube 21 and the locking piece 22 is rotated. The locking piece 22 gradually moves toward the middle of the half tube 21 by threaded cooperation. The locking piece 22 cooperates with the tapered part of the half tube 21 during the rotation and movement, thereby pressing the upper and lower half tubes 21. The sealing gasket 231 seals the gap between the upper and lower half tubes 21. The semi-arc rubber sheet 230 seals the gap between the inner wall of the end of the half tube 21 and the outer wall of the cable 1 during the pressing of the upper and lower half tubes 21, which not only achieves the multiple sealing effect of the connection between the conductors 10 of the two cables 1, but also can press and seal the connection of the two ends of the cable 1, further improving the connection stability of the cable 1 and the mechanical strength of the connector assembly.

[0037] See also Figure 3 , Figure 4 and Figure 5 The compression sealing unit 5 includes an upper arc pressure seat 50, which is an arc-shaped structure protruding upward. The lower end surface of the upper arc pressure seat 50 is provided with clamping grooves 51 which are evenly arranged along its radial direction and correspond one to one with the clamping grooves 4. The clamping grooves 51 are an arc-shaped structure with diameters at both ends smaller than the diameter in the middle. The opposite surfaces of the two arc-shaped brackets 3 are installed with arc frames 52, and the opposite surfaces of the two arc frames 52 are installed with sealing rubber abutments 53. The lower end surface of the upper arc pressure seat 50 and the inner wall of the small diameter of the clamping groove 51 are installed with insulating rubber gaskets 54. The upper arc pressure seat 50 is plugged into the two arc-shaped brackets 3 and the arc frame 52 through a plug-in matching limiter 55.

[0038] When the wires 10 on the two cables 1 are both stuck in the corresponding wire clamping grooves 4 and the two arc-shaped brackets 3 press the connector 11, the two arc frames 52 are pressed against each other, and the sealing rubber abutment sheets 53 between the two arc frames 52 are pressed against each other, and the half-tube 21 located on the lower side is plugged and installed under the two arc-shaped brackets 3, and the axial displacement locking limit is performed on the lower part of the two arc-shaped brackets 3 through the limit plug-in locking unit 6, and then the half-tube 21 located on the upper side is covered on the other half-tube 21, and the half-tube 21 located on the upper side drives the upper arc pressure seat 50 to move through the elastic pressure piece 7, and the upper The arc pressure seat 50 is plugged into and matched with the two arc-shaped brackets 3 and the arc-shaped frame 52 through the plug-in matching limit piece 55, thereby realizing axial limiting and locking of the upper sides of the two arc-shaped brackets 3. At the same time, the insulating rubber gasket 54 cooperates with the wire clamping groove 4 to compress and lock the wire 10, thereby preventing the wire 10 from being detached at the connection when it is subjected to tension. In addition, the upper arc pressure seat 50, the two arc-shaped brackets 3 and the two arc-shaped frames 52 cooperate to realize secondary sealing of the connection between the wires 10 of the two cables 1, further improving the sealing effect of the connection between the wires 10.

[0039] See also Figure 3 , Figure 4 and Figure 5 The plug-in matching limiter 55 includes a plug-in groove 550 opened on the top of the arc-shaped bracket 3 and arranged alternately with the wire clamping groove 4. The tops of the two arc-shaped frames 52 are also provided with a plug-in groove 550. The lower end surface of the upper arc pressure seat 50 is installed with a plug-in limit plate 551 corresponding to the plug-in groove 550.

[0040] The upper arc pressure seat 50 drives the plug-in limit plate 551 to be inserted into the corresponding plug-in groove 550 , thereby realizing the plug-in and locking of the upper arc pressure seat 50 and the two arc-shaped brackets 3 .

[0041] See also Figure 5 The elastic pressing member 7 includes a pressing spring rod 70 installed on the inner wall of the upper half tube 21, and a receiving groove 72 is provided on the top of the arc-shaped side wall of the upper arc pressure seat 50. The end of the pressing spring rod 70 away from the half tube 21 is connected to the receiving groove 72. When the locking member 22 rotates and moves, it cooperates with the conical part of the half tube 21 to press the upper and lower half tubes 21. Under the action of the extrusion force, the pressing spring rod 70 presses the upper arc pressure seat 50 and the two arc support seats 3 tightly, thereby further improving the pressing and sealing performance of the upper arc pressure seat 50 and the two arc support seats 3.

[0042] See also Figure 3 and Figure 5The limit plug-in locking unit 6 includes an insert block 60 installed together at the bottom of the arc-shaped bracket 3 connected to the arc-shaped frame 52, and the lower ends of the two insert blocks 60 on the opposite sides are arc-shaped. The inner wall of the half-tube 21 located on the lower side is provided with a slot 61 for plugging with the two insert blocks 60. The top of the arc-shaped bracket 3 away from the arc-shaped frame 52 is provided with a rectangular groove 62 arranged alternately with the wire clamping groove 4, and the inner wall of the half-tube 21 located on the upper side is provided with an insert rod 63 corresponding to the rectangular groove 62 one by one.

[0043] After the arc frame 52 between the two arc brackets 3 is tightly pressed against each other, the plug block 60 is inserted into the slot 61, and the slot 61 cooperates with the two plug blocks 60, so as to axially lock the two tightly pressed arc frames 52 and the arc bracket 3. When the upper and lower half tubes 21 are closed, the plug rod 63 is inserted into the corresponding rectangular groove 62, which not only realizes the support and fixation of the arc bracket 3 by the two half tubes 21, but also improves the accuracy of the docking of the two half tubes 21 during the plug-in cooperation between the upper and lower half tubes 21 and the arc bracket 3, thereby improving the sealing of the two half tubes 21 after closing.

[0044] See also Figure 3 The arc-shaped bracket 3 is installed with isolation balls 30 arranged alternately with the wire clamping grooves 4 on the end surface close to the cable 1. The arc-shaped surface of the isolation balls 30 gradually separates the adjacent wires 10 on the same cable 1 to avoid electromagnetic interference caused by electromagnetic field interaction between adjacent wires 10.

[0045] See also Figure 3 The conical transitions of the inner walls of the two half-tubes 21 are both installed with rubber pads 210. The upper and lower rubber pads 210 cooperate with each other to compress and seal the wire 10 again, further improving the sealing and connection stability of the connection between the two cables 1, thereby further improving the connection strength of the cable connector assembly.

[0046] When in use, the two locking members 22 are firstly sleeved on the two cables 1 respectively, and then the exposed metal parts of the wires 10 are hinged and the two corresponding wires 10 are twisted and connected through the connector 11 to seal.

[0047] Then, the wire 10 is clamped in the corresponding wire clamping groove 4, so as to separate the adjacent wires 10, so as to avoid electromagnetic interference caused by electromagnetic field interaction between the adjacent wires 10, which affects the stability of signal transmission. At this time, the connector 11 of the wire 10 is located between the two arc-shaped brackets 3, and the arc-shaped bracket 3 is moved toward the connector 11 until the two arc-shaped brackets 3 are tightly pressed against the connector 11, so as to limit the connector 11, and then the sealing unit 5 is pressed and matched with the two arc-shaped brackets 3 to limit the wire 10 and the connector 11 along the radial direction of the arc-shaped bracket 3, so as to avoid the connection of the wire 10 being detached due to the force when the cable 1 is subjected to tension or other mechanical stresses, thereby affecting the use of the cable 1.

[0048] Then, the limiting plug-in locking unit 6, the compression sealing unit 5, and the two arc-shaped brackets 3 are covered and pressed and locked through the upper and lower half tubes 21, and the exposed wires 10 of the two cables 1 are completely covered, and the two half tubes 21 are connected and compressed and sealed through the locking piece 22, which not only further improves the sealing of the connection between the two cables 1, but also enables the two cables 1 to obtain multiple compression connections under the connection action of the connector assembly, thereby improving the stability of the cable 1 connection.

[0049] In the description of the present invention, it is necessary to understand that the terms "length", "width", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0050] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-security power cable connector assembly, used for connecting two cables (1), each of the two cables (1) having three wires (10) at its end, the ends of the wires (10) being slidably sleeved with connectors (11), the connectors (11) of the two corresponding cables (1) cooperating with each other to seal and lock the twisted joint after the wires (10) are twisted, characterized in that: The cable gland assembly includes: A joint sleeve (2), the joint sleeve (2) comprising two half-tubes (21) and a locking member (22) for locking and fixing the two ends of the two half-tubes (21); the two half-tubes (21) cooperate to form a tubular structure with tapered ends; the two ends of the joint sleeve (2) are respectively sleeved on the two cables (1) for sealing and fixing the connection portion of the two cables (1); a rubber sealing unit (23) is provided on the joint sleeve (2); Two arc-shaped brackets (3), the top of the arc-shaped bracket (3) is provided with three wire-holding grooves (4) evenly arranged along the radial direction thereof, three wires (10) of the cable (1) are respectively held in the three wire-holding grooves (4) of the same arc-shaped bracket (3), a connector (11) is located between the two arc-shaped brackets (3), and the connector (11) is tightly abutted against the corresponding arc-shaped bracket (3); The inner wall of the upper half tube (21) is provided with a compression sealing unit (5) which is plugged into and matched with the tops of the two arc-shaped brackets (3) via an elastic pressing piece (7); a limiting plug-in locking unit (6) which is provided between the two half tubes (21) and which limits the axial position of the two arc-shaped brackets (3) and presses the compression sealing unit (5) against the arc-shaped brackets (3); The compression sealing unit (5) comprises an upper arc pressure seat (50), the upper arc pressure seat (50) is an arc-shaped structure protruding upward, the lower end surface of the upper arc pressure seat (50) is provided with clamping grooves (51) evenly arranged along its radial direction and corresponding to the clamping grooves (4) one by one, the clamping grooves (51) are an arc-shaped structure with diameters at both ends smaller than the diameter in the middle, the opposite surfaces of the two arc-shaped brackets (3) are both installed with arc-shaped frames (52), the opposite surfaces of the two arc-shaped frames (52) are both installed with sealing rubber abutments (53), and the upper arc pressure seat (50) is plugged with the two arc-shaped brackets (3) and the arc-shaped frame (52) by plugging and matching limit members (55); The position-limiting plug-in locking unit (6) comprises an insert block (60) installed together at the bottom of an arc frame (52) and an arc bracket (3) connected thereto, the lower ends of the two insert blocks (60) on opposite sides are both arc-shaped, a slot (61) for plugging and cooperating with the two insert blocks (60) is provided on the inner wall of the lower half pipe (21), a rectangular groove (62) arranged alternately with the wire clamping groove (4) is provided on the top of the side of the arc bracket (3) away from the arc frame (52), and an insert rod (63) corresponding to the rectangular groove (62) is installed on the inner wall of the upper half pipe (21).

2. According to claim 1, a high-safety power cable connector assembly is characterized in that: The plug-in matching limiter (55) comprises a plug-in slot (550) arranged alternately with the wire clamping slot (4) and opened at the top of the arc-shaped bracket (3); the tops of the two arc-shaped frames (52) are also provided with a plug-in slot (550); and the lower end surface of the upper arc pressure seat (50) is provided with a plug-in limiter plate (551) corresponding to the plug-in slot (550) one by one.

3. According to claim 1, a high-safety power cable connector assembly is characterized in that: The elastic pressure member (7) comprises a pressure spring rod (70) installed on the inner wall of the upper half tube (21); a receiving groove (72) is provided on the top of the arc-shaped side wall of the upper arc pressure seat (50); and one end of the pressure spring rod (70) away from the half tube (21) is connected to the receiving groove (72).

4. A high-safety power cable connector assembly according to claim 1, characterized in that: The locking member (22) is a conical ring sleeve, the large-diameter end of the conical ring sleeve faces the joint sleeve (2), and the inner wall of the conical ring sleeve is connected to the outer wall of the conical section of the half pipe (21) by threaded engagement.

5. The high-safety power cable connector assembly according to claim 1, characterized in that: The rubber sealing unit (23) comprises a semi-arc rubber sheet (230) installed on the inner walls of both ends of the half tube (21) arranged along the axial direction, and sealing gaskets (231) are installed on both end surfaces of the half tube (21) located at the lower side close to the other half tube (21).

6. A high-safety power cable connector assembly according to claim 1, characterized in that: The end surface of the arc-shaped bracket (3) close to the cable (1) is equipped with insulating balls (30) arranged in an alternating manner with the wire clamping grooves (4).

7. The high-safety power cable connector assembly according to claim 1, characterized in that: Rubber pads (210) are installed at the conical transition positions of the inner walls of the two half pipes (21).

8. The high-safety power cable connector assembly according to claim 1, characterized in that: Insulating rubber gaskets (54) are installed on the lower end surface of the upper arc pressure seat (50) and the small-diameter inner wall of the clamping groove (51).

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