High-voltage power cable pipe joint

Abstract

The invention discloses a high-voltage power cable pipe joint, and belongs to the technical field of cable pipe joints, the high-voltage power cable pipe joint comprises a valve body, a first connecting frame, a second connecting frame and two protective pipes, and the inner wall of the first connecting frame is fixedly connected with an external thread on one side of the second connecting frame through a thread; and one side of the first connecting frame and one side of the second connecting frame are both provided with connecting pipes in a communicating mode. According to the invention, tensile force is adapted and buffered through stretching of the bidirectional elastic telescopic rod and deformation of a cable harness connecting part from bending to straight line when the cable harness connecting part is stretched, so that the cable is prevented from being damaged due to excessive stretching, and the bidirectional elastic telescopic rod can be adaptively adjusted according to different tensile forces; the cable is ensured to be always in a relatively safe stress range, so that the connecting part of the two cable harnesses in the second connecting frame is ensured not to be easily broken due to pulling, and the stability and safety of power transmission are ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of cable pipe joints, and in particular relates to a high-voltage power cable pipe joint. Background Art

[0002] In today's power supply system, high-voltage power cables play a vital role. They are responsible for efficiently and stably transmitting electricity from power plants to various power consumption areas. In order to ensure the safe operation of high-voltage power cables, effective protection is essential.

[0003] Traditional pipe joints usually use a straight-line connection method. When the cable is stretched by external force, the connection part is prone to breakage, which greatly affects the stability and safety of power transmission. Moreover, traditional pipe joints lack sufficient adaptability when facing external conditions such as cable vibration, which may cause gaps in the cable harness connection parts, making it easy for external impurities such as moisture and dust to invade, thereby reducing the insulation performance of the cable and increasing the risk of cable failure.

[0004] In order to avoid the above technical problems, it is necessary to provide a high-voltage power cable pipe joint to overcome the above defects in the prior art. Summary of the invention

[0005] The object of the present invention is to provide a high-voltage power cable pipe joint to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a high-voltage power cable pipe joint, comprising a valve body, comprising a first connecting frame, a second connecting frame and two protective tubes, the inner wall of the first connecting frame being fixedly connected to the external thread of one side of the second connecting frame by a thread, one side of the first connecting frame and the second connecting frame are both connected with a connecting tube, one side of the two connecting tubes are both connected with a protective tube, a cable harness is arranged in the two protective tubes, the two cable harnesses are respectively extended into the second connecting frame through the connecting tube, the opposite ends of the two cable harnesses are connected, and the connecting sections of the two cable harnesses are in a raised curved shape, a fixing block is fixedly arranged inside the second connecting frame, a bidirectional elastic telescopic rod is fixedly arranged on the top of the fixing block, clamping devices are fixedly arranged at both ends of the bidirectional elastic telescopic rod, the two clamping devices each clamps a section of the two cable harnesses, and a lifting and pressing device is arranged inside the second connecting frame.

[0007] As a preferred embodiment, a pressure ring frame is fixedly provided on the outside of the second connecting frame, a plurality of screw holes are opened on the pressure ring frame, a plurality of pressure holes are opened on the first connecting frame, bolts are provided through the screw holes on the pressure ring frame, the bottom ends of the bolts are pressed against the corresponding pressure holes, and bolt washers are provided on the bolts.

[0008] As a preferred embodiment, each of the clamping devices includes a machine block, each of the machine blocks is fixedly arranged at one end of a bidirectional elastic telescopic rod, each of the machine blocks is provided with a machine groove, and two first threaded rods are rotatably arranged in each of the machine grooves, the opposite ends of the two first threaded rods are fixedly connected, the thread directions of the two first threaded rods are opposite, the outsides of the two first threaded rods are threadedly connected to two displacement blocks, and the two displacement blocks are slidably arranged in the machine groove.

[0009] As a preferred embodiment, clamping blocks are fixedly provided on the upper surfaces of the two displacement blocks, the adjacent sides of the two clamping blocks on one side are clamped on the corresponding cable harness through a clamping pad, and a first rotating block is provided at the rotation point of one end of the first threaded rod on one side.

[0010] As a preferred embodiment, the lifting and pressing device includes a vertical block, which is fixedly arranged in a second connecting frame, a first bevel gear is rotatably arranged on one side of the vertical block, a second rotating block is arranged at the rotating position of one side of the first bevel gear, and a connecting block is fixedly connected inside the second connecting frame.

[0011] As a preferred implementation scheme, a second threaded rod is rotatably provided on the lower surface of the connecting block, the second threaded rod is externally threadedly connected to a lifting block, and an arc-shaped pressing block is fixedly provided on one side of the lifting block.

[0012] As a preferred implementation scheme, a transverse block is fixedly provided on the upper surface of the vertical block, the bottom end of the second threaded rod is rotatably provided on the transverse block, and a second bevel gear is provided at the rotation point of the bottom end of the second threaded rod.

[0013] As a preferred embodiment, the first bevel gear and the second bevel gear are meshed with each other, the arc-shaped pressure block is located above the two cable harness connection sections, a sliding rod is fixedly provided inside the second connection frame, and the outside of the sliding rod passes through and is slidably connected to the inside of the lifting block.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention, by setting the connecting sections of the two cable harnesses in a raised curved shape, enables the curved connecting parts extending from the two cable harnesses to be clamped and fixed on both sides of the clamping device on the bidirectional elastic telescopic rod, and can adaptively adjust the stretching of the harnesses, so that when the cable is stretched to a certain extent, the connector can adapt to and buffer the tension through the expansion and contraction of the bidirectional elastic telescopic rod and the deformation of the cable harness connecting part from a curve to a straight line when the cable is stretched, thereby avoiding damage to the cable due to excessive stretching, wherein the bidirectional elastic telescopic rod can be adaptively adjusted according to different pulling force sizes to ensure that the cable is always within a safer force range, thereby helping to ensure that the connecting parts of the two cable harnesses in the second connecting frame will not be easily broken due to pulling, thereby helping to ensure the stability and safety of power transmission.

[0016] In the present invention, the raised harness at the connection point of two cable harnesses not only helps to prevent the harness from breaking, but also has the following effects. First, the curved connecting line segment can better adapt to these changes, instead of easily generating rigid stress like a straight connection; secondly, the curved connecting line segment can disperse the stress to a larger area and reduce the stress concentration at the connection point, which can extend the service life of the cable and reduce failures caused by stress concentration; finally, the curved cable connecting line segment can better adapt to different installation requirements, it can bypass obstacles and adapt to irregular spatial shapes, making the installation of the cable more flexible and convenient.

[0017] The present invention provides an arc-shaped pressing block. When the connection parts of the two cable harnesses are in a convex state, the second rotating block can be rotated. The second rotating block will drive the second threaded rod to rotate through the meshing of the first bevel gear and the second bevel gear. The second threaded rod will drive the arc-shaped pressing block to move up and down through the thread displacement of the lifting block, so that the arc-shaped pressing block can press the convex connection parts of the two cable harnesses through displacement. On the one hand, the arc-shaped feature of the arc-shaped pressing block increases the pressing contact area of ​​the cable harness, and the friction force is relatively large. In addition, due to the concave arc feature of the arc-shaped pressing block itself, The connecting section of the cable harness will not easily deflect due to external vibration when it is pressed and fixed by the arc-shaped pressing block, thereby achieving the effect of pressing and positioning the connecting segments of the two cable harnesses, ensuring the position stability of the connection between the two cable harnesses. Secondly, the arc-shaped pressing block presses and covers the harness to provide a certain protection for the connection of the cable harness. Combined with the stable positioning effect of the arc-shaped pressing block, the raised harness will not be easily affected by the outside world and be broken and exposed, which helps to ensure the insulation performance and reduce the risk of cable harness failure.

[0018] In the present invention, when the first rotating block is rotated, the two first threaded rods are driven to rotate threads, and then the threaded displacement of the two displacement blocks drives the two clamping blocks to clamp and fix the cable harness using the clamping cushion layer. During this period, the displacement of the two clamping blocks can be used to adjust different clamping sizes to a certain extent, which helps to achieve the clamping and fixation of cable harnesses of different sizes, thereby helping to adapt to the connection and installation of cable harnesses inside various cable tubes.

[0019] The present invention provides screw holes on the pressing ring frame so that when the first connecting frame and the second connecting frame are connected by threads, bolts can be passed through the screw holes and pressed in the pressing holes to reinforce the connection between the first connecting frame and the second connecting frame, thereby helping to achieve a more stable connection between the first connecting frame and the second connecting frame, thereby helping to ensure the stability of the cable pipe connection joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a schematic diagram of a cutaway three-dimensional structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the machine block of the present invention;

[0023] Figure 4 It is a schematic diagram of the cutaway three-dimensional structure of the machine block of the present invention;

[0024] Figure 5 It is a schematic diagram of a side-section three-dimensional structure of a second connection frame of the present invention;

[0025] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged three-dimensional structure at A in the middle.

[0026] In the figure: 1. first connecting frame; 2. second connecting frame; 3. protective tube; 4. thread; 5. connecting tube; 6. cable harness; 7. fixing block; 8. bidirectional elastic telescopic rod; 9. clamping device; 91. machine block; 92. machine slot; 93. first threaded rod; 94. displacement block; 95. clamping block; 96. clamping cushion; 97. first rotating block; 10. lifting and pressing device; 101. vertical block; 102. first bevel gear; 103. second rotating block; 104. connecting block; 105. second threaded rod; 106. lifting block; 107. arc pressure block; 108. horizontal block; 109. second bevel gear; 1010. sliding rod; 11. pressure ring frame; 12. screw hole; 13. pressure hole; 14. bolt; 15. bolt gasket. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the embodiments.

[0028] The following examples are used to illustrate the present invention, but they cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions. Simple improvements to the method of the present invention under the premise of the concept of the present invention belong to the scope of protection claimed in the present invention.

[0029] See also Figure 1-6 The present invention provides a high-voltage power cable pipe joint, comprising a first connection frame 1, a second connection frame 2 and two protective tubes 3. The inner wall of the first connection frame 1 is fixedly connected to the external thread of one side of the second connection frame 2 through a thread 4. The first connection frame 1 and the second connection frame 2 are both connected to a connection tube 5 on one side. The two connection tubes 5 are both connected to a protective tube 3 on one side. Cable harnesses 6 are arranged in the two protective tubes 3. The two cable harnesses 6 extend into the second connection frame 2 through the connection tubes 5 respectively. The opposite ends of the two cable harnesses 6 are connected. The connecting sections of the two cable harnesses 6 are convex. The second connecting frame 2 is bent, and a fixing block 7 is fixedly arranged inside the second connecting frame 2. A bidirectional elastic telescopic rod 8 is fixedly arranged on the top of the fixing block 7. Clamping devices 9 are fixedly arranged at both ends of the bidirectional elastic telescopic rod 8. The two clamping devices 9 clamp a section of the two cable harnesses 6. A lifting and pressing device 10 is arranged inside the second connecting frame 2. By setting the connecting sections of the two cable harnesses 6 in a convex curved shape, the curved connecting parts extending from the two cable harnesses 6 are clamped and fixed on both sides of the clamping devices 9 on the bidirectional elastic telescopic rod 8, so that the stretching of the harness can be adaptively adjusted, so that The connector can adapt to and buffer the tension when the cable is stretched to a certain extent through the expansion and contraction of the bidirectional elastic telescopic rod 8 and the deformation of the connecting part of the cable harness 6 from bending to straight line when it is stretched, so as to avoid damage to the cable due to excessive stretching. The bidirectional elastic telescopic rod 8 can be adaptively adjusted according to different pulling force sizes to ensure that the cable is always within a relatively safe force range, thereby helping to ensure that the connecting parts of the two cable harnesses 6 in the second connecting frame 2 will not be easily broken due to pulling, thereby helping to ensure the stability and safety of power transmission. In addition to helping to prevent the harness from breaking, the raised harness at the connection between the two cable harnesses 6 also has the following effects. First, the curved connecting line segment can better adapt to these changes instead of easily generating rigid stress like a straight connection; secondly, the curved connecting line segment can disperse the stress to a larger area and reduce the stress concentration at the connection point, which can extend the service life of the cable and reduce failures caused by stress concentration. Finally, the curved cable connecting line segment can better adapt to different installation requirements. It can bypass obstacles and adapt to irregular spatial shapes, making the installation of cables more flexible and convenient.

[0030] like Figure 1 and Figure 2As shown, the present invention provides an embodiment, a pressing ring frame 11 is fixedly provided on the outside of the second connecting frame 2, a plurality of screw holes 12 are opened on the pressing ring frame 11, a plurality of pressing holes 13 are opened on the first connecting frame 1, bolts 14 are provided through the screw holes 12 on the pressing ring frame 11, the bottom ends of the bolts 14 are pressed against the corresponding pressing holes 13, and bolt washers 15 are provided on the bolts 14. By providing the screw holes 12 on the pressing ring frame 11, when the first connecting frame 1 and the second connecting frame 2 are connected by threads, the connection between the first connecting frame 1 and the second connecting frame 2 can be reinforced by the bolts 14 passing through the screw holes 12 and pressing against the pressing holes 13, thereby helping to achieve a more stable connection between the first connecting frame 1 and the second connecting frame 2, thereby helping to ensure the stability of the cable pipe connection joint.

[0031] like Figure 3 and Figure 4 As shown, the present invention provides an embodiment, each clamping device 9 includes a machine block 91, each machine block 91 is fixedly arranged at one end of the bidirectional elastic telescopic rod 8, each machine block 91 is provided with a machine slot 92, and two first threaded rods 93 are rotatably arranged in each machine slot 92, the opposite ends of the two first threaded rods 93 are fixedly connected, the thread directions of the two first threaded rods 93 are opposite, the outsides of the two first threaded rods 93 are threadedly connected to two displacement blocks 94, and the two displacement blocks 94 are slidably arranged in the machine slot 92.

[0032] like Figure 3 and Figure 4 As shown, the present invention provides an embodiment, the upper surfaces of the two displacement blocks 94 are fixedly provided with clamping blocks 95, the adjacent sides of the two clamping blocks 95 on one side are clamped on the corresponding cable harness 6 through the clamping pad 96, and the first rotating block 97 is provided at the rotation position of one end of the first threaded rod 93 on one side. When the first rotating block 97 is rotated, the two first threaded rods 93 are driven to rotate threadably, and then the two clamping blocks 95 are driven by the thread displacement of the two displacement blocks 94 to clamp and fix the cable harness 6 with the clamping pad 96. During this period, the displacement of the two clamping blocks 95 can be used to adjust different clamping sizes to a certain extent, thereby helping to achieve the clamping and fixation of cable harnesses 6 of different sizes, thereby helping to adapt to the connection and installation of cable harnesses inside diversified cable tubes.

[0033] like Figure 5 As shown, the present invention provides an embodiment, the lifting and pressing device 10 includes a vertical block 101, the vertical block 101 is fixedly arranged in the second connecting frame 2, a first bevel gear 102 is rotatably arranged on one side of the vertical block 101, a second rotating block 103 is arranged at the rotating position of one side of the first bevel gear 102, and a connecting block 104 is fixedly connected inside the second connecting frame 2.

[0034] like Figure 5As shown, the present invention provides an embodiment, a second threaded rod 105 is rotatably provided on the lower surface of the connecting block 104, the second threaded rod 105 is externally threadedly connected to a lifting block 106, and an arc-shaped pressing block 107 is fixedly provided on one side of the lifting block 106.

[0035] like Figure 5 and Figure 6 As shown, the present invention provides an embodiment, a horizontal block 108 is fixedly provided on the upper surface of the vertical block 101, the bottom end of the second threaded rod 105 is rotatably provided on the horizontal block 108, and a second bevel gear 109 is provided at the rotation position of the bottom end of the second threaded rod 105.

[0036] like Figure 5 and Figure 6 As shown, the present invention provides an embodiment, the first bevel gear 102 and the second bevel gear 109 are meshed with each other, the arc pressure block 107 is located above the connecting section of the two cable harnesses 6, and a sliding rod 1010 is fixedly arranged inside the second connecting frame 2, and the outer part of the sliding rod 1010 passes through and is slidably connected to the inside of the lifting block 106. By setting the arc pressure block 107, when the connecting parts of the two cable harnesses 6 are in a convex state, the second rotating block 103 can be rotated, and the second rotating block 103 will drive the second threaded rod 105 to rotate through the meshing of the first bevel gear 102 and the second bevel gear 109, and the second threaded rod 105 will drive the arc pressure block 107 to move up and down through the thread displacement of the lifting block 106, so that the arc pressure block 107 can press the convex connection of the two cable harnesses 6 through displacement. In addition, due to the concave arc feature of the arc pressure block 107 itself, the connecting section of the cable harness 6 will not be easily deflected due to external vibration when it is pressed and fixed by the arc pressure block 107, thereby achieving the effect of pressing and positioning the connecting segments of the two cable harnesses 6, and ensuring the position stability of the connection between the two cable harnesses 6. Secondly, the arc pressure block 107 presses and covers the harness to provide a certain protection for the connection of the cable harness 6. Combined with the stable positioning effect of the arc pressure block 107, the raised harness will not be easily affected by the outside world and will not be broken and exposed, thereby helping to ensure the insulation performance of 6 and reducing the risk of failure of the cable harness 6.

[0037] The working principle and use process of the present invention are as follows: first, by setting the connecting sections of the two cable harnesses 6 in a raised curved shape, the curved connecting parts extending from the two cable harnesses 6 are clamped and fixed on both sides of the clamping device 9 on the bidirectional elastic telescopic rod 8, so that the stretching of the harness can be adaptively adjusted, so that when the cable is stretched to a certain extent, the connector can adapt to and buffer the tension through the expansion and contraction of the bidirectional elastic telescopic rod 8 and the deformation of the connecting part of the cable harness 6 from bending to straight line when the cable is stretched, so as to avoid the cable being damaged due to excessive stretching, wherein the bidirectional elastic telescopic rod 8 can be adaptively adjusted according to different pulling force sizes to ensure that the cable is always within a relatively safe force range, thereby helping to ensure that the connecting parts of the two cable harnesses 6 in the second connecting frame 2 will not be easily broken due to pulling, thereby helping to ensure the stability and safety of power transmission, and when the harness is raised at the connection of the two cable harnesses 6, in addition to helping to prevent the harness from breaking, it also has the following effects, first of all, the curved connecting line segment can better adapt to these changes, instead of easily generating rigid stress like a straight line connection;Secondly, the curved connecting line segment can disperse the stress to a larger area and reduce the stress concentration at the connection point, which can extend the service life of the cable and reduce failures caused by stress concentration. Finally, the curved cable connecting line segment can better adapt to different installation requirements. It can bypass obstacles and adapt to irregular spatial shapes, making the installation of the cable more flexible and convenient. In addition, by providing a screw hole 12 on the pressing ring frame 11, when the first connecting frame 1 and the second connecting frame 2 are connected by threads, the bolt 14 can be passed through the screw hole 12 and pressed in the pressing hole 13 to connect the first connecting frame 1 and the second connecting frame 2. When the first rotating block 97 is rotated, the two first threaded rods 93 are driven to rotate, and then the two clamping blocks 95 are driven by the thread displacement of the two displacement blocks 94 to clamp and fix the cable harness 6 with the clamping cushion layer 96. During this period, the displacement of the two clamping blocks 95 can be used to adjust different clamping sizes to a certain extent, thereby helping to achieve the clamping and fixation of cable harnesses 6 of different sizes, thereby helping to adapt to the connection and installation of cable harnesses inside diversified cable tubes. The arc-shaped pressing block 107 is arranged. When the connection parts of the two cable harnesses 6 are in a convex state, the second rotating block 103 can be rotated. The second rotating block 103 will drive the second threaded rod 105 to rotate through the meshing of the first bevel gear 102 and the second bevel gear 109. The second threaded rod 105 will drive the arc-shaped pressing block 107 to move up and down through the thread displacement of the lifting block 106, so that the arc-shaped pressing block 107 can press the convex connection parts of the two cable harnesses 6 through displacement. On the one hand, the arc-shaped feature of the arc-shaped pressing block 107 increases the pressing contact area of ​​the cable harness 6, and the friction force is large. In addition, due to the internal friction of the arc-shaped pressing block 107 The concave arc feature prevents the connecting section of the cable harness 6 from being easily deflected by external vibration when it is pressed and fixed by the arc-shaped pressing block 107, thereby achieving the effect of pressing and positioning the connecting segments of the two cable harnesses 6, ensuring the position stability of the connection between the two cable harnesses 6. Secondly, the arc-shaped pressing block 107 presses and covers the harness to protect the connection of the cable harness 6 to a certain extent, and the stable positioning effect of the arc-shaped pressing block 107 makes it difficult for the protruding harness to be easily affected by the outside world and be broken and exposed, thereby helping to ensure the insulation performance of 6 and reducing the risk of failure of the cable harness 6. ;

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-voltage power cable pipe joint, comprising a first connection frame (1), a second connection frame (2) and two protection pipes (3), characterized in that: The inner wall of the first connection frame (1) is fixedly connected to the external thread of one side of the second connection frame (2) through a thread (4); one side of the first connection frame (1) and the second connection frame (2) are both connected to a connecting tube (5); one side of the two connecting tubes (5) are both connected to a protective tube (3); a cable harness (6) is arranged in the two protective tubes (3); the two cable harnesses (6) extend into the second connection frame (2) through the connecting tube (5), respectively; the opposite ends of the two cable harnesses (6) are connected; the connecting sections of the two cable harnesses (6) are in a convex curved shape; a fixing block (7) is fixedly arranged inside the second connection frame (2); a bidirectional elastic telescopic rod (8) is fixedly arranged at the top of the fixing block (7); clamping devices (9) are fixedly arranged at both ends of the bidirectional elastic telescopic rod (8); the two clamping devices (9) clamp a section of the two cable harnesses (6); and a lifting and pressing device (10) is arranged inside the second connection frame (2).

2. A high-voltage power cable pipe joint according to claim 1, characterized in that: The second connecting frame (2) is fixedly provided with a pressing ring frame (11) on the outside, and a plurality of screw holes (12) are provided on the pressing ring frame (11). A plurality of pressing holes (13) are provided on the first connecting frame (1). Bolts (14) are provided through the screw holes (12) on the pressing ring frame (11). The bottom ends of the bolts (14) are pressed against the corresponding pressing holes (13). Bolt washers (15) are provided on the bolts (14).

3. A high-voltage power cable pipe joint according to claim 1, characterized in that: Each of the clamping devices (9) comprises a machine block (91), each of the machine blocks (91) is fixedly arranged at one end of the bidirectional elastic telescopic rod (8), each of the machine blocks (91) is provided with a machine slot (92), two first threaded rods (93) are rotatably arranged in each of the machine slots (92), the opposite ends of the two first threaded rods (93) are fixedly connected, the thread directions of the two first threaded rods (93) are opposite, the outsides of the two first threaded rods (93) are threadedly connected to two displacement blocks (94), and the two displacement blocks (94) are slidably arranged in the machine slot (92).

4. A high-voltage power cable pipe joint according to claim 3, characterized in that: A clamping block (95) is fixedly arranged on the upper surface of the two displacement blocks (94); the adjacent sides of the two clamping blocks (95) on one side are clamped on the corresponding cable harness (6) through a clamping pad layer (96); and a first rotating block (97) is arranged at the rotation point of one end of the first threaded rod (93) on one side.

5. A high-voltage power cable pipe joint according to claim 1, characterized in that: The lifting and pressing device (10) comprises a vertical block (101), wherein the vertical block (101) is fixedly arranged in a second connection frame (2), a first bevel gear (102) is rotatably arranged on one side of the vertical block (101), a second rotating block (103) is arranged at a rotating position on one side of the first bevel gear (102), and a connecting block (104) is fixedly connected inside the second connection frame (2).

6. A high-voltage power cable pipe joint according to claim 5, characterized in that: A second threaded rod (105) is rotatably provided on the lower surface of the connection block (104); the second threaded rod (105) is externally threadedly connected to a lifting block (106); and an arc-shaped pressing block (107) is fixedly provided on one side of the lifting block (106).

7. A high-voltage power cable pipe joint according to claim 6, characterized in that: A transverse block (108) is fixedly arranged on the upper surface of the vertical block (101), the bottom end of the second threaded rod (105) is rotatably arranged on the transverse block (108), and a second bevel gear (109) is arranged at the rotation point of the bottom end of the second threaded rod (105).

8. A high-voltage power cable pipe joint according to claim 7, characterized in that: The first bevel gear (102) and the second bevel gear (109) are meshed with each other, the arc-shaped pressure block (107) is located above the connecting sections of the two cable harnesses (6), and a sliding rod (1010) is fixedly arranged inside the second connecting frame (2), and the outside of the sliding rod (1010) passes through and is slidably connected to the inside of the lifting block (106).

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