A high voltage switch cabinet cable connector

Abstract

The present invention relates to the technical field of cable connectors, and specifically to a high-voltage switch cabinet cable connector, which is applied to the high-voltage switch cabinet to achieve a fixed connection between the cable and the side wall of the high-voltage switch cabinet, and the cable connector includes a connecting sleeve, a connecting nut, a first shell, a pressure-bearing sleeve and a pressure ring assembly. The connecting sleeve is suitable for being inserted into the side wall of the high-voltage switch cabinet, and the outer side wall of the connecting sleeve is provided with an external thread. The connecting sleeve includes a first external thread section and a second external thread section that are connected in succession. The outer peripheral fixed sleeve of the connecting sleeve is provided with a positioning ring, and the positioning ring is located between the first external thread section and the second external thread section. The first external thread section is inserted into the side wall of the high-voltage switch cabinet; the connecting sleeve is provided with a wiring through hole. The connecting nut is threadedly sleeved on the first external thread section, and the connecting nut and the positioning ring jointly clamp the side wall of the high-voltage switch cabinet. The above-mentioned high-voltage switch cabinet cable connector has the beneficial effect of good fixing effect on the armored steel wire of the cable.

Description

Technical Field

[0001] The present invention relates to the technical field of cable connectors, and in particular to a high-voltage switch cabinet cable connector. Background Art

[0002] High-voltage switchgear is an electrical device that is mainly used for on / off, control or protection in the process of power generation, transmission, distribution, power conversion and consumption in power systems. The voltage level of high-voltage switchgear is usually between 3.6kV and 550kV. High-voltage switchgear is an important part of the power transmission and transformation equipment manufacturing industry and plays a very important role in the entire power industry.

[0003] The existing cable connectors of high-voltage switch cabinets use a pressure ring to crimp the armored steel wire of the cable to fix the cable. The armored steel wire extends roughly along the axial direction of the cable and is pressed against the pressure-bearing part by the pressure ring. Due to the small contact area between the pressure ring and the armored steel wire, the pressure ring has limited effect on the compression and fixing of the armored steel wire. When the armored steel wire is subjected to pulling force, the pressure ring is easy to loosen. Summary of the invention

[0004] Based on this, it is necessary to provide a high-voltage switch cabinet cable connector to address the problem that the current high-voltage switch cabinet cable connector has a poor fixing effect on the armored steel wire of the cable.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A high-voltage switch cabinet cable connector, which is applied to the high-voltage switch cabinet to achieve fixed connection between the cable and the side wall of the high-voltage switch cabinet; the cable comprises a connecting wire, an inner wire sheath, an armored steel wire and an outer wire sheath; the inner wire sheath wraps the connecting wire; a plurality of armored steel wires are provided, and the plurality of armored steel wires are arranged on the surface of the inner wire sheath along the circumference of the connecting wire; the outer wire sheath wraps the plurality of armored steel wires; the cable connector comprises a connecting sleeve, a connecting nut, a first shell, a pressure-bearing sleeve and a pressure ring assembly;

[0007] The connecting sleeve is suitable for being inserted into the side wall of the high-voltage switch cabinet, the outer side wall of the connecting sleeve is provided with an external thread, the connecting sleeve comprises a first external thread section and a second external thread section which are connected in succession, the outer peripheral fixed sleeve of the connecting sleeve is provided with a positioning ring, the positioning ring is located between the first external thread section and the second external thread section, the first external thread section is inserted into the side wall of the high-voltage switch cabinet; the connecting sleeve is provided with a wiring through hole, and the cable is inserted into the wiring through hole;

[0008] The connecting nut is threadably sleeved on the first external thread section, and the connecting nut and the positioning ring jointly clamp the side wall of the high-voltage switch cabinet;

[0009] The first housing is provided with a receiving through hole, the receiving through hole comprising a smooth hole section and an internal threaded hole section connected in succession, at least a part of the structure of the second external threaded section is inserted into the receiving through hole and is threadedly connected with the internal threaded hole section;

[0010] The pressure-bearing sleeve is sleeved on the outer circumference of the cable, the pressure-bearing sleeve is located in the accommodating through hole, and at least a part of the structure of the pressure-bearing sleeve is threadedly connected with the internal threaded hole section;

[0011] The pressure ring assembly is sleeved on the outer circumference of the pressure sleeve and fits with the smooth hole section, and the pressure ring assembly is provided with a wire-shifting structure; at least part of the structure of the armored steel wire is located between the pressure ring assembly and the pressure sleeve, and is clamped and fixed by the pressure ring assembly and the pressure sleeve; the wire-shifting structure shifts the part of the armored steel wire located between the pressure ring assembly and the pressure sleeve into an S-shaped curved section; the armored steel wire also includes a straight section and a connecting section, the straight section is arranged on the outer surface of the inner wire skin, and extends along the axial direction of the connecting line; the connecting section is connected between the straight section and the curved section.

[0012] Furthermore, the pressure-bearing sleeve includes a pressure-bearing sleeve and a connecting ring, the pressure-bearing sleeve is sleeved on the outer circumference of the cable, the connecting ring is fixedly sleeved on the outer circumference of the pressure-bearing sleeve, and the outer side wall of the connecting ring is threadedly connected to the internal threaded hole section; the smooth hole section includes a first smooth hole section and a second smooth hole section which are connected in series, the first smooth hole section is connected in series to the internal threaded hole section, and the aperture of the second smooth hole section close to one end of the first smooth hole section is smaller than the aperture of the first smooth hole section so as to form a step annular surface between the second smooth hole section and the first smooth hole section; the pressure ring assembly is sleeved on the outer circumference of the pressure-bearing sleeve, one end face of the pressure ring assembly is in contact with the step annular surface, and the other end face is in contact with the surface of the connecting ring facing the step annular surface.

[0013] Furthermore, the cable connector also includes an inner sleeve, which is sleeved on the outer circumference of the cable and located in the wiring through hole. The outer wall of the inner sleeve is in contact with the inner wall of the wiring through hole. One end of the pressure-bearing cylinder is inserted into the inner sleeve, and the pressure-bearing cylinder and the connecting sleeve jointly clamp and fix the inner sleeve.

[0014] Furthermore, the curved segment includes a first bending segment and a second bending segment which are connected in succession, the first bending segment is connected between the second bending segment and the connecting segment; and the curvature of the first bending segment is smaller than that of the second bending segment.

[0015] Furthermore, the pressure ring assembly includes two gaskets, four pressure rings and three thermosensitive rings; the four pressure rings and the three thermosensitive rings are arranged alternately in sequence; one of the gaskets is fitted with the step ring surface and with the pressure ring closest to the step ring surface; the other gasket is fitted with the surface of the connecting ring facing the step ring surface and with the pressure ring closest to the connecting ring; the gasket is elastic; the thickness of the thermosensitive ring increases with the increase of ambient temperature, and the thickness of the thermosensitive ring decreases with the decrease of ambient temperature; the inner wall of the pressure ring is provided with a plurality of wire-digging teeth, the wire-digging teeth are wire-digging structures, and a wiring gap is provided between two adjacent wire-digging teeth, and the number of wiring gaps is the same as the number of armor steel wires, and each armor steel wire passes through a wiring gap of each pressure ring to form an S-shaped curve segment.

[0016] Furthermore, a guide groove group is provided on the outer wall of the pressure cylinder; the guide groove group includes a first guide groove and a second guide groove, the end of the first guide groove away from the connecting ring is arranged adjacent to the end of the second guide groove away from the connecting ring, and the end of the first guide groove close to the connecting ring and the end of the second guide groove close to the connecting ring are separated from each other; a guide column is provided on the inner wall of the pressure ring, the guide column of one of the two adjacent pressure rings is embedded in the first guide groove and can slide along the first guide groove, and the guide column of the other one is embedded in the second guide groove and can slide along the second guide groove.

[0017] Furthermore, the first guide groove includes a plurality of first straight groove segments and a plurality of first oblique groove segments that are connected in series and alternately arranged, the first straight groove segments extend along the axial direction of the pressure-bearing cylinder, and the first oblique groove segments are inclined relative to the first straight groove segments; the second guide groove includes a plurality of second straight groove segments and a plurality of second oblique groove segments that are connected in series and alternately arranged, the second straight groove segments extend along the axial direction of the pressure-bearing cylinder, and the second oblique groove segments are inclined relative to the second straight groove segments.

[0018] Furthermore, the cable connector also includes a second shell, which is sleeved on one end of the first shell away from the connecting sleeve; the second shell is provided with a accommodating cavity and a wiring opening connected to the accommodating cavity, the accommodating cavity is connected to the accommodating through hole, the cable is passed through the accommodating cavity and the wiring opening and extends to the outside of the second shell.

[0019] Furthermore, the second shell includes a connecting tube and an end plate, the end plate is connected to one end of the connecting tube, and the end of the connecting tube away from the end plate is threadedly sleeved on the end of the first shell away from the connecting sleeve; the connecting tube and the end plate form a accommodating cavity, and the wiring port is opened at the center position of the end plate.

[0020] Furthermore, the cable connector also includes a sealing gasket and a sealing sleeve. The sealing sleeve is arranged on the outer periphery of the cable and is located in the accommodating cavity. The sealing gasket is arranged on the outer periphery of the cable and is located between the sealing sleeve and the first shell. The end of the first shell away from the connecting sleeve clamps the sealing gasket and the sealing sleeve tightly together with the end plate.

[0021] The beneficial effects of the present invention are:

[0022] The present invention provides a high-voltage switch cabinet cable connector, the installation process of which is as follows:

[0023] First, pass the cable through the wiring through hole of the connecting sleeve, remove the outer wire skin, armored steel wire and inner wire skin of the connecting front end of the cable (the part located inside the high-voltage switch cabinet after connection), pass the first external thread section of the connecting sleeve through the side wall of the high-voltage switch cabinet, and then thread the connecting nut on the first external thread section. After tightening, the connecting sleeve can be fixedly connected to the side wall of the high-voltage switch cabinet;

[0024] Then, the pressure sleeve is sleeved on the outer periphery of the cable, at least a part of the structure of the armored steel wire is arranged on the outer surface of the pressure sleeve, and then the pressure ring assembly is sleeved on the outer periphery of the pressure sleeve, so that the pressure ring assembly and the pressure sleeve can jointly clamp the curved section of the armored steel wire; because the pressure ring assembly is provided with a wire shifting structure, during the process of sleeve-connecting the pressure ring assembly, the wire shifting structure can shift the part of the armored steel wire located between the pressure ring assembly and the pressure sleeve into an S-shaped curved section;

[0025] Finally, the first housing is threadedly sleeved on the second external thread section of the connecting sleeve, so that the pressure-bearing sleeve and the pressure ring assembly are accommodated in the receiving through hole, and the pressure ring assembly fits with the smooth hole section of the receiving through hole. Therefore, the first housing can stably sleeve the pressure ring assembly on the outer periphery of the pressure-bearing sleeve, so that the pressure ring assembly and the pressure-bearing sleeve can stably clamp the curved section of the armored steel wire.

[0026] Through the above-mentioned arrangement, since the portion of the armor steel wire that is clamped and fixed by the pressure ring assembly and the pressure sleeve is a curved section formed by the wire-pulling structure, the contact area between the clamped portion of the armor steel wire and the pressure ring assembly and the pressure sleeve can be increased, thereby improving the stability and reliability of the armor steel wire connection; further, since the curved section of the armor steel wire that is clamped by the pressure ring assembly and the pressure sleeve is S-shaped, the pull-out resistance of the armor steel wire can be further improved, thereby further improving the stability and reliability of the armor steel wire connection.

[0027] In summary, the high-voltage switch cabinet cable connector can stably and reliably clamp and fix the armored steel wires of the cable, and has the beneficial effect of having a good fixing effect on the armored steel wires of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a high-voltage switch cabinet cable connector in one embodiment of the present invention;

[0029] Figure 2 for Figure 1 An enlarged view of part A in FIG.

[0030] Figure 3 for Figure 1 A cross-sectional view of the cable connector shown in the AA direction;

[0031] Figure 4 for Figure 3 An enlarged view of part B in FIG.

[0032] Figure 5 for Figure 1 A partial structural cross-sectional view of the cable connector shown;

[0033] Figure 6 for Figure 5 An enlarged view of part C in FIG.

[0034] Figure 7 for Figure 3 A schematic diagram of the structure of the pressure-bearing sleeve in FIG.

[0035] Figure 8 for Figure 4 Schematic diagram of the structure of the pressure ring.

[0036] in:

[0037] 100, high-voltage switch cabinet cable connector; 10, connecting sleeve; 101, first external thread section; 102, second external thread section; 103, positioning ring; 104, wiring through hole; 11, first shell; 110, accommodating through hole; 111, smooth hole section; 1111, first smooth hole section; 1112, second smooth hole section; 112, internal thread hole section; 113, step annular surface; 12, pressure-bearing sleeve; 120, pressure-bearing cylinder; 121, connecting ring; 122, guide groove group; 1221, first guide groove; 1222, second guide groove; 1223, first straight groove section; 1224, first oblique groove section; 1225, second Straight groove section; 1226, second oblique groove section; 13, pressure ring assembly; 131, gasket; 132, pressure ring; 1321, wire pulling tooth; 1322, wiring gap; 1323, guide column; 133, thermal ring; 14, inner sleeve; 15, second shell; 151, accommodating cavity; 152, connecting tube; 153, end plate; 1531, wiring opening; 16, sealing gasket; 17, sealing sleeve; 200, cable; 20, connecting wire; 21, inner wire skin; 22, armored steel wire; 221, straight section; 222, connecting section; 223, curved section; 2231, first bending section; 2232, second bending section; 23, outer wire skin. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is 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 to the present invention.

[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , an embodiment of the present invention provides a high-voltage switch cabinet cable connector 100, which is applied to a high-voltage switch cabinet to achieve a fixed connection between a cable 200 and a side wall (not shown in the figure) of the high-voltage switch cabinet. The cable 200 includes a connecting wire 20, an inner wire sheath 21, an armored steel wire 22, and an outer wire sheath 23. A plurality of connecting wires 20 are provided, and the inner wire sheath 21 wraps the plurality of connecting wires 20 to form a roughly cylindrical structure. A plurality of armored steel wires 22 are provided, and the plurality of armored steel wires 22 are arranged around the surface of the inner wire sheath 21 along the circumference of the connecting wire 20. The outer wire sheath 23 wraps the plurality of armored steel wires 22 to form a roughly cylindrical structure.

[0042] The cable connector comprises a connecting sleeve 10 , a connecting nut (not shown in the figure), a first housing 11 , a pressure-bearing sleeve 12 and a pressure ring assembly 13 .

[0043] The connecting sleeve 10 is roughly cylindrical and suitable for being installed on the side wall of the high-voltage switch cabinet. The outer wall of the connecting sleeve 10 is provided with an external thread. The connecting sleeve 10 includes a first external thread section 101 and a second external thread section 102 which are connected in series. A positioning ring 103 is provided on the outer peripheral fixed sleeve of the connecting sleeve 10. The positioning ring 103 and the connecting sleeve 10 can be integrally formed, welded or bonded. The positioning ring 103 is located between the first external thread section 101 and the second external thread section 102. The first external thread section 101 is installed on the side wall of the high-voltage switch cabinet. The connecting sleeve 10 is provided with a wiring through hole 104. The hole axis direction of the wiring through hole 104 roughly coincides with the axial direction of the connecting sleeve 10. The cable 200 is installed in the wiring through hole 104 and extends outside the wiring through hole 104.

[0044] The connecting nut is threadedly sleeved on the first external thread section 101, and the connecting nut and the positioning ring 103 are respectively located on opposite sides of the side wall of the high-voltage switch cabinet. When the connecting nut is tightened, the connecting nut and the positioning ring 103 can jointly clamp the side wall of the high-voltage switch cabinet to achieve a fixed connection between the connecting sleeve 10 and the side wall of the high-voltage switch cabinet.

[0045] The first housing 11 is provided with a receiving through hole 110, and the receiving through hole 110 includes a smooth hole section 111 and an internal threaded hole section 112 connected in series. The smooth hole section 111, the internal threaded hole section 112, and the wiring through hole 104 are coaxially arranged. It should be noted that the smooth hole section 111 means that the hole wall of this part of the receiving through hole 110 is smooth, and the hole wall of this part of the receiving through hole 110 is provided with an internal thread on the surface of the internal threaded hole section 112. At least part of the structure of the second external thread section 102 is inserted into the receiving through hole 110 and is threadedly connected to the internal threaded hole section 112.

[0046] The pressure-bearing sleeve 12 is sleeved on the outer circumference of the cable 200 . The pressure-bearing sleeve 12 is located in the accommodating through hole 110 . At least a part of the structure of the pressure-bearing sleeve 12 is threadedly connected to the internal threaded hole section 112 .

[0047] The pressure ring assembly 13 is sleeved on the outer circumference of the pressure sleeve 12 and fits with the smooth hole section 111. The pressure ring assembly 13 is provided with a wire-shifting structure. At least part of the structure of the armored steel wire 22 is located between the pressure ring assembly 13 and the pressure sleeve 12, and is clamped and fixed by the pressure ring assembly 13 and the pressure sleeve 12. The wire-shifting structure shifts the part of the armored steel wire 22 located between the pressure ring assembly 13 and the pressure sleeve 12 into an S-shaped curved section 223. The armored steel wire 22 also includes a straight section 221 and a connecting section 222. The straight section 221 is arranged on the outer surface of the inner wire skin 21 and extends along the axial direction of the connecting line 20; the connecting section 222 is connected between the straight section 221 and the curved section 223.

[0048] The installation process of the above cable connector is as follows:

[0049] First, the cable 200 is inserted into the wiring through hole 104 of the connecting sleeve 10, and the outer wire sheath 23, the armored steel wire 22 and the inner wire sheath 21 of the connecting front end of the cable 200 (the part located inside the high-voltage switch cabinet after connection) are removed, and the first external thread section 101 of the connecting sleeve 10 is inserted into the side wall of the high-voltage switch cabinet, and then the connecting nut is threadedly sleeved on the first external thread section 101, and after tightening, the connecting sleeve 10 can be fixedly connected to the side wall of the high-voltage switch cabinet;

[0050] Then, the pressure sleeve 12 is sleeved on the outer periphery of the cable 200, at least a part of the structure of the armored steel wire 22 is arranged on the outer surface of the pressure sleeve 12, and then the pressure ring assembly 13 is sleeved on the outer periphery of the pressure sleeve 12, so that the pressure ring assembly 13 and the pressure sleeve 12 can clamp the curved section 223 of the armored steel wire 22 together; because the pressure ring assembly 13 is provided with a wire shifting structure, during the process of sleeve-connecting the pressure ring assembly 13, the wire shifting structure can shift the part of the armored steel wire 22 located between the pressure ring assembly 13 and the pressure sleeve 12 into an S-shaped curved section 223;

[0051] Finally, the first housing 11 is threadedly sleeved on the second external thread section 102 of the connecting sleeve 10, so that the pressure-bearing sleeve 12 and the pressure ring assembly 13 are accommodated in the receiving through hole 110, and the pressure ring assembly 13 is fitted with the smooth hole section 111 of the receiving through hole 110. Therefore, the first housing 11 can stably sleeve the pressure ring assembly 13 on the outer periphery of the pressure-bearing sleeve 12, so that the pressure ring assembly 13 and the pressure-bearing sleeve 12 stably clamp the curved section 223 of the armor steel wire 22.

[0052] Through the above arrangement, since the portion of the armored steel wire 22 that is clamped and fixed by the pressure ring assembly 13 and the pressure sleeve 12 is a curved section 223 formed by the wire-pulling structure, the contact area between the clamped portion of the armored steel wire 22 and the pressure ring assembly 13 and the pressure sleeve 12 can be increased, thereby improving the stability and reliability of the connection of the armored steel wire 22; further, since the curved section 223 where the armored steel wire 22 is clamped by the pressure ring assembly 13 and the pressure sleeve 12 is S-shaped, the pull-out resistance of the armored steel wire 22 can be further improved, thereby further improving the stability and reliability of the connection of the armored steel wire 22. In summary, the above-mentioned high-voltage switch cabinet cable connector 100 can stably and reliably clamp and fix the armored steel wire 22 of the cable 200, and has the beneficial effect of having a good fixing effect on the armored steel wire 22 of the cable 200.

[0053] See also Figure 3 , Figure 4 and Figure 7In some embodiments, the pressure-bearing sleeve 12 includes a pressure-bearing cylinder 120 and a connecting ring 121. The pressure-bearing cylinder 120 is roughly cylindrical, and the connecting ring 121 is roughly annular. The pressure-bearing cylinder 120 is sleeved on the outer periphery of the cable 200, and the connecting ring 121 is fixedly sleeved on the outer periphery of the pressure-bearing cylinder 120. The connecting ring 121 and the pressure-bearing cylinder 120 can be integrally formed, welded, or bonded. The outer side wall of the connecting ring 121 is provided with an external thread, and the outer side wall of the connecting ring 121 is threadedly connected to the internal threaded hole section 112. The pressure-bearing cylinder 120, the connecting ring 121, and the accommodating through hole 110 are coaxially arranged.

[0054] The smooth hole section 111 includes a first smooth hole section 1111 and a second smooth hole section 1112 connected in series. The first smooth hole section 1111 and the second smooth hole section 1112 are coaxially arranged. The first smooth hole section 1111 is connected in series with the internal thread hole section 112. The aperture of the second smooth hole section 1112 near one end of the first smooth hole section 1111 is smaller than the aperture of the first smooth hole section 1111 so as to form a step annular surface 113 between the second smooth hole section 1112 and the first smooth hole section 1111. The pressure ring assembly 13 is sleeved on the outer circumference of the pressure-bearing cylinder 120, and one end face of the pressure ring assembly 13 is in contact with the step annular surface 113, and the other end face is in contact with the surface of the connecting ring 121 facing the step annular surface 113.

[0055] Through the above arrangement, the connecting ring 121 and the step annular surface 113 act together on the pressure ring assembly 13 to prevent the pressure ring assembly 13 from moving as a whole in the axial direction of the pressure-bearing cylinder 120. The first housing 11 and the pressure-bearing cylinder 120 act together on the pressure ring assembly 13 to prevent the pressure ring assembly 13 from moving as a whole in the radial direction of the pressure-bearing cylinder 120. Therefore, it is possible to ensure that the pressure ring assembly 13 has good stability, so that the pressure ring assembly 13 can stably press the curved section 223 of the armor steel wire 22 on the surface of the pressure-bearing cylinder 120 to achieve a stable connection of the armor steel wire 22.

[0056] In some embodiments, the cable connector further includes an inner sleeve 14, which is made of hard rubber or plastic. The inner sleeve 14 is generally cylindrical, and is sleeved on the outer periphery of the cable 200 and located in the wiring through hole 104. The outer wall of the inner sleeve 14 fits the inner wall of the wiring through hole 104, and one end of the pressure-bearing cylinder 120 is inserted into the inner sleeve 14. The pressure-bearing cylinder 120 and the connecting sleeve 10 jointly clamp and fix the inner sleeve 14.

[0057] Through the above arrangement, since the pressure-bearing cylinder 120 and the connecting sleeve 10 jointly clamp and fix the inner sleeve 14, and the inner sleeve 14 is made of materials such as hard rubber or plastic, the inner sleeve 14 can form a sealing structure between the pressure-bearing cylinder 120 and the inner side wall of the wiring through hole 104, thereby improving the sealing performance of the connecting sleeve 10 and protecting the safety of the cable 200. Furthermore, the inner sleeve 14 can also clamp and fix the cable 200 to further improve the stability of the cable 200.

[0058] See also Figure 5 and Figure 6 In some embodiments, the curved section 223 includes a first bending section 2231 and a second bending section 2232 connected in series, and the first bending section 2231 and the second bending section 2232 together constitute an S-shaped structure of the curved section 223. The first bending section 2231 and the second bending section 2232 are both formed by the wire-pulling structure of the armored steel wire 22 bypassing the pressure ring assembly 13. The first bending section 2231 is connected between the second bending section 2232 and the connecting section 222, and the bending degree of the first bending section 2231 is less than the bending degree of the second bending section 2232.

[0059] Through the above-mentioned arrangement, since the bending degree of the first bending section 2231 is smaller than that of the second bending section 2232, in the radial direction of the pressure cylinder 120, the width of the second bending section 2232 is larger than the width of the first bending section 2231, that is, the protrusion height of the second bending section 2232 on the surface of the pressure cylinder 120 is larger than the protrusion height of the first bending section 2231 on the surface of the pressure cylinder 120. Therefore, the parts of the multiple armored steel wires 22 clamped by the pressure ring assembly 13 and the pressure cylinder 120 together form a wedge-shaped structure, which can further improve the supporting and fixing effect of the pressure ring assembly 13 and the pressure cylinder 120 on the armored steel wires 22, and also further improve the pull-out resistance of the armored steel wires 22.

[0060] See also Figure 3 , Figure 4 , Figure 7 and Figure 8In some embodiments, the pressure ring assembly 13 includes two gaskets 131, four pressure rings 132 and three thermal rings 133. The gaskets 131, the pressure rings 132 and the thermal rings 133 are all in annular shape. The gaskets 131, the pressure rings 132, the thermal rings 133 and the pressure-bearing cylinder 120 are coaxially arranged. The four pressure rings 132 and the three thermal rings 133 are alternately arranged in sequence. One of the gaskets 131 is in contact with the step ring surface 113, and is in contact with the pressure ring 132 closest to the step ring surface 113. The other gasket 131 is in contact with the surface of the connecting ring 121 facing the step ring surface 113, and is in contact with the pressure ring 132 closest to the connecting ring 121. The gasket 131 is elastic, for example, the gasket 131 can be a rubber ring, a silicone ring, etc. The thermosensitive ring 133 is made of a thermosensitive material. The thickness of the thermosensitive ring 133 increases as the ambient temperature increases, and the thickness of the thermosensitive ring 133 decreases as the ambient temperature decreases.

[0061] The inner side wall of the pressure ring 132 is provided with a plurality of wire-pulling teeth 1321, which are the wire-pulling structures of the pressure ring assembly 13, and the wire-pulling teeth 1321 are pointed. A routing gap 1322 is provided between two adjacent routing teeth 1321, and the number of routing gaps 1322 is the same as the number of armored steel wires 22, and each armored steel wire 22 passes through a routing gap 1322 of each pressure ring 132 to form an S-shaped curved segment 223. It should be noted that when the armored steel wire 22 passes through the routing gap 1322 of the pressure ring 132, it is bent by the clamping effect of the wire-pulling teeth 1321 to form an S-shaped curved segment 223. In addition, by adjusting the specific position of the routing gap 1322 through which the armored steel wire 22 passes, the bending degree of the curved segment 223 can be adjusted, that is, the bending degree of the first bending segment 2231 and the second bending segment 2232 can be adjusted.

[0062] In some embodiments, the outer wall of the pressure-bearing cylinder 120 is provided with a guide groove group 122. The guide groove group 122 includes a first guide groove 1221 and a second guide groove 1222, and an end of the first guide groove 1221 away from the connecting ring 121 and an end of the second guide groove 1222 away from the connecting ring 121 are arranged adjacent to each other. An end of the first guide groove 1221 close to the connecting ring 121 and an end of the second guide groove 1222 close to the connecting ring 121 are separated from each other. The first guide groove 1221 and the second guide groove 1222 together constitute a guide groove group 122 that is roughly V-shaped.

[0063] The inner wall of the pressure ring 132 is provided with a guide column 1323 . The guide column 1323 of one of the two adjacent pressure rings 132 is embedded in the first guide groove 1221 and can slide along the first guide groove 1221 , and the guide column 1323 of the other one is embedded in the second guide groove 1222 and can slide along the second guide groove 1222 .

[0064] Through the above arrangement, during the assembly process of the pressure ring assembly 13, the four pressure rings 132 need to be sequentially sleeved on the pressure-bearing cylinder 120. When sleeved with the first pressure ring 132 (i.e., the pressure ring 132 closest to the connecting ring 121), first insert the multiple armored steel wires 22 into the multiple routing gaps 1322 of the first pressure ring 132, and then insert the guide column 1323 of the first pressure ring 132 into the first guide groove 1221 or the second guide groove 1222. As the first pressure ring 132 continuously moves toward the connecting ring 121, the first pressure ring 132 will rotate, so that the wire-pulling teeth 1321 will bend the armored steel wires 22;

[0065] When the second pressing ring 132 (i.e., the second pressing ring 132 close to the connecting ring 121) is installed, the plurality of armored steel wires 22 are first inserted into the plurality of wiring gaps 1322 of the second pressing ring 132, and then the guide column 1323 of the second pressing ring 132 is embedded in the second guide groove 1222 or the first guide groove 1221 (if the guide column 1323 of the first pressing ring 132 is embedded in the first guide groove 1221, the guide column 1323 of the second pressing ring 132 is embedded in the second guide groove 1221). 222; if the guide post 1323 of the first pressing ring 132 is embedded in the second guide groove 1222, the guide post 1323 of the second pressing ring 132 is embedded in the first guide groove 1221), as the second pressing ring 132 continues to move in the direction close to the connecting ring 121, the second pressing ring 132 will rotate in the opposite direction to the first pressing ring 132, so that the wire pulling tooth 1321 will pull and bend the armored steel wire 22, and the second wire pulling direction is opposite to the wire pulling direction of the first pressing ring 132;

[0066] When the third pressing ring 132 (i.e., the third pressing ring 132 close to the connecting ring 121) is installed, the plurality of armored steel wires 22 are first inserted into the plurality of wiring gaps 1322 of the third pressing ring 132, and then the guide column 1323 of the third pressing ring 132 is embedded in the first guide groove 1221 or the second guide groove 1222 (if the guide column 1323 of the first pressing ring 132 is embedded in the first guide groove 1221, the guide column 1323 of the third pressing ring 132 is embedded in the first guide groove 1221). If the guide post 1323 of the first pressing ring 132 is embedded in the second guide groove 1222, the guide post 1323 of the third pressing ring 132 is embedded in the second guide groove 1222). As the third pressing ring 132 continues to move toward the connecting ring 121, the third pressing ring 132 will rotate in the opposite direction to the second pressing ring 132, so that the wire-pulling tooth 1321 bends the armored steel wire 22, and the wire-pulling direction of the third pressing ring 132 is opposite to that of the second pressing ring 132.

[0067] When the fourth pressure ring 132 (i.e., the pressure ring 132 farthest from the connecting ring 121) is installed, the plurality of armored steel wires 22 are first inserted into the plurality of wiring gaps 1322 of the fourth pressure ring 132, and then the guide column 1323 of the fourth pressure ring 132 is embedded in the second guide groove 1222 or the first guide groove 1221 (if the guide column 1323 of the third pressure ring 132 is embedded in the first guide groove 1221, the guide column 1323 of the fourth pressure ring 132 is embedded in the second guide groove 122 2; if the guide post 1323 of the third pressure ring 132 is embedded in the second guide groove 1222, the guide post 1323 of the fourth pressure ring 132 is embedded in the first guide groove 1221), as the fourth pressure ring 132 continues to move in the direction close to the connecting ring 121, the fourth pressure ring 132 will rotate in the opposite direction to the third pressure ring 132, so that the wire-pulling tooth 1321 will bend the armored steel wire 22, and the wire-pulling direction of the fourth pressure ring 132 is opposite to that of the third pressure ring 132;

[0068] When all four pressure rings 132 are sleeved on the pressure cylinder 120 according to the above operation, the four pressure rings 132 can automatically move the part of the armored steel wire 22 located between the pressure ring assembly 13 and the pressure cylinder 120 into an S shape to form a curved segment 223. In addition, the above-mentioned S-shaped curved segment 223 includes a first bending segment 2231 and a second bending segment 2232 connected in succession, and the bending degree of the first bending segment 2231 is less than the bending degree of the second bending segment 2232. In summary, the above-mentioned setting can make the pressure ring assembly 13 automatically move the part of the armored steel wire 22 located between the pressure ring assembly 13 and the pressure cylinder 120 into an S shape after the pressure ring assembly 13 is sleeved on the pressure cylinder 120, thereby increasing the length of the structure where the armored steel wire 22 is clamped by the pressure ring assembly 13 and the pressure cylinder 120, that is, increasing the stability of the armored steel wire 22 being clamped and fixed. In addition, the above-mentioned operation process is simple and convenient, and will not increase the difficulty of installing the cable connector.

[0069] In some embodiments, multiple groups of guide groove groups 122 are provided on the outer wall of the pressure-bearing cylinder 120, and the number of guide groove groups 122 can be any number of groups, such as two groups, three groups, or four groups. Multiple groups of guide groove groups 122 are evenly spaced along the circumference of the pressure-bearing cylinder 120, and the number of guide posts 1323 on a single pressure ring 132 is the same as the number of guide groove groups 122, and the positions correspond one to one. Through the above arrangement, multiple groups of guide groove groups 122 cooperate with multiple guide posts 1323, which can improve the guiding effect of the guide groove groups 122 on the pressure ring 132 during the process of the pressure ring 132 being sleeved on the pressure-bearing cylinder 120, thereby making the installation of the pressure ring 132 smoother and making it easier for the pressure ring 132 to move the armored steel wire 22.

[0070] In some embodiments, the first guide groove 1221 includes a plurality of first straight groove segments 1223 and a plurality of first oblique groove segments 1224 that are connected in series and alternately arranged, the first straight groove segment 1223 extending along the axial direction of the pressure-bearing cylinder 120, and the first oblique groove segment 1224 being inclined relative to the first straight groove segment 1223. The second guide groove 1222 includes a plurality of second straight groove segments 1225 and a plurality of second oblique groove segments 1226 that are connected in series and alternately arranged, the second straight groove segment 1225 extending along the axial direction of the pressure-bearing cylinder 120, and the second oblique groove segment 1226 being inclined relative to the second straight groove segment 1225. The number of the first straight groove segments 1223 and the number of the second straight groove segments 1225 are the same, and the positions of the plurality of first straight groove segments 1223 and the plurality of second straight groove segments 1225 along the circumferential direction of the pressure-bearing cylinder 120 correspond one to one. The number of the first oblique slot segments 1224 and the number of the second oblique slot segments 1226 are the same, and the positions of the plurality of first oblique slot segments 1224 and the plurality of second oblique slot segments 1226 along the circumferential direction of the pressure-bearing cylinder 120 correspond one to one.

[0071] Through the above arrangement, according to the thickness of the pressure ring 132, the thickness of the thermosensitive ring 133, and the thickness change of the thermosensitive ring 133 when heated, the straight groove section (the first straight groove section 1223 and the second straight groove section 1225) and the oblique groove section (the first oblique groove section 1224 and the second oblique groove section 1226) with appropriate length can be calculated and designed, so that when the four pressure rings 132 are all sleeved on the pressure-bearing cylinder 120, the guide posts 1323 of the four pressure rings 132 are all located in the straight groove section (the first straight groove section 1223 or the second straight groove section 1225). When the ambient temperature rises, the armored steel wire 22 is easy to expand and elongate after being heated. At this time, the thickness of the thermosensitive ring 133 will increase after being heated, so as to increase the distance between two adjacent pressure rings 132, thereby providing expansion space for the armored steel wire 22. It should be noted that, in the above process, the guide posts 1323 of two adjacent pressure rings 132 move in their respective straight groove sections and move away from each other, and the guide posts 1323 do not move into the oblique groove section (the first oblique groove section 1224 or the second oblique groove section 1226 ).

[0072] On the contrary, when the ambient temperature decreases, the armored steel wire 22 is easily shrunk and shortened after being cooled. At this time, the thickness of the thermosensitive ring 133 will decrease after being cooled to match the change in the length of the armored steel wire 22, thereby ensuring that the armored steel wire 22 can be stably clamped by the pressure ring assembly 13 and the pressure sleeve 12. It should be noted that when the thickness of the thermosensitive ring 133 decreases, under the elastic squeezing action of the gasket 131, two adjacent pressure rings 132 will approach each other, so that the four pressure rings 132 and the three thermosensitive rings 133 always maintain a fitting state, so as to ensure the integrity of the pressure ring assembly 13, that is, to ensure the pressure line effect of the pressure ring assembly 13 on the armored steel wire 22.

[0073] See also Figure 1, Figure 2 and Figure 3 In some embodiments, the cable connector further includes a second housing 15, which is sleeved on an end of the first housing 11 away from the connecting sleeve 10. The second housing 15 is provided with a receiving cavity 151 and a wiring opening 1531 communicating with the receiving cavity 151, the receiving cavity 151 is communicated with the receiving through hole 110, and the cable 200 is passed through the receiving cavity 151 and the wiring opening 1531 and extends to the outside of the second housing 15.

[0074] Through the above arrangement, the second shell 15 is used to surround and seal the end of the first shell 11 away from the connecting sleeve to prevent foreign matter from entering the accommodating through hole 110 and affecting the safety of the cable 200 .

[0075] In some embodiments, the second housing 15 includes a connecting tube 152 and an end plate 153. The connecting tube 152 is roughly cylindrical with two ends open, and the end plate 153 is connected to one end of the connecting tube 152 and blocks one end of the connecting tube 152. One end of the connecting tube 152 away from the end plate 153 is threadedly sleeved on one end of the first housing 11 away from the connecting sleeve 10. The connecting tube 152 and the end plate 153 form a receiving chamber 151, and the wiring port 1531 is opened at the center of the end plate 153.

[0076] Through the above arrangement, since the connecting tube 152 is threadedly sleeved on the end of the first shell 11 away from the connecting sleeve 10, and the end plate 153 blocks the port of the connecting tube 152 away from the first shell 11, the connecting tube 152 cooperates with the end plate 153 to surround and block the end of the first shell 11 away from the connecting sleeve 10, so as to prevent external impurities from entering the accommodating through hole 110 and affecting the safe use of the cable 200.

[0077] In some embodiments, the cable connector further includes a sealing pad 16 and a sealing sleeve 17, wherein the sealing pad 16 is annular and the sealing sleeve 17 is substantially cylindrical. The sealing sleeve 17 is sleeved on the outer periphery of the cable 200 and is located in the accommodating cavity 151, the sealing pad 16 is sleeved on the outer periphery of the cable 200 and is located between the sealing sleeve 17 and the first housing 11, and the end of the first housing 11 away from the connecting sleeve 10 and the end plate 153 clamp the sealing pad 16 and the sealing sleeve 17 tightly.

[0078] Through the above arrangement, when the second shell 15 is screwed tight, the end of the first shell 11 away from the connecting sleeve 10 and the end plate 153 clamp the sealing gasket 16 and the sealing sleeve 17 together, so that a sealing structure can be formed between the wiring port 1531 and the accommodating cavity 151, which can prevent external liquid from entering the accommodating cavity 151 and the accommodating through hole 110 from the wiring port 1531, thereby further ensuring the safe use of the cable 200.

[0079] The specific connection process of the above-mentioned high-voltage switch cabinet cable connector 100 and the high-voltage switch cabinet is as follows: first, the second shell 15, the sealing sleeve 17 and the sealing gasket 16 are sequentially sleeved on the cable 200, and then the first shell 11, the pressure ring assembly 13, the pressure sleeve 12, the inner sleeve 14, and the connecting sleeve 10 are sequentially sleeved on the cable 200; then the connecting sleeve 10 is fixedly connected to the side wall of the high-voltage switch cabinet in turn, one end of the pressure sleeve 12 is inserted into the wiring through hole 104 of the connecting sleeve 10 to clamp the inner sleeve 14, the pressure ring assembly 13 is sleeved on the pressure sleeve 12, and the first shell 11 is threadedly connected to the connecting sleeve 10; finally, the second shell 15 is rotated to make the connecting sleeve 152 threadedly sleeved on the end of the first shell 11 away from the connecting sleeve 10, and the connection is completed, and the operation is simple and convenient.

[0080] In summary, this embodiment provides a high-voltage switch cabinet cable connector 100, which has the following beneficial effects:

[0081] First, the cable connector can make the clamped and fixed portion of the armored steel wire 22 of the cable 200 be S-shaped, thereby increasing the length and area of ​​the clamped and fixed portion of the armored steel wire 22, so as to improve the installation and fixing effect of the armored steel wire 22 and the pull-out resistance of the armored steel wire 22;

[0082] Furthermore, the cable connector can also enable the S-shaped portion of the armored steel wire 22 to be clamped to form a wedge-shaped anti-pulling structure, thereby further improving the anti-pulling performance of the armored steel wire 22;

[0083] Furthermore, the above-mentioned cable connector sets a thermistor ring 133 between adjacent pressure rings 132. When the temperature rises, the thickness of the thermistor ring 133 increases to push the adjacent pressure rings 132 away from each other, thereby providing an elongation space for the thermal expansion of the armored steel wire 22, thereby reducing the influence of temperature on the tensile strength of the armored steel wire 22, thereby further improving the stability and reliability of the installation of the cable 200.

[0084] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0085] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A high voltage switch cabinet cable connector, characterized in that: The invention is applied to a high-voltage switch cabinet to realize a fixed connection between a cable (200) and a side wall of the high-voltage switch cabinet; the cable (200) comprises a connecting wire (20), an inner wire sheath (21), an armored steel wire (22) and an outer wire sheath (23); the inner wire sheath (21) wraps the connecting wire (20); a plurality of armored steel wires (22) are provided, and the plurality of armored steel wires (22) are arranged on the surface of the inner wire sheath (21) along the circumference of the connecting wire (20); the outer wire sheath (23) wraps the plurality of armored steel wires (22); the cable (200) connector comprises: A connecting sleeve (10) is suitable for being inserted into the side wall of the high-voltage switch cabinet, the outer side wall of the connecting sleeve (10) is provided with an external thread, the connecting sleeve (10) comprises a first external thread section (101) and a second external thread section (102) which are connected in series, the outer peripheral fixed sleeve of the connecting sleeve (10) is provided with a positioning ring (103), the positioning ring (103) is located between the first external thread section (101) and the second external thread section (102), the first external thread section (101) is inserted into the side wall of the high-voltage switch cabinet; the connecting sleeve (10) is provided with a wiring through hole (104), the cable (200) is inserted into the wiring through hole (104); A connecting nut, threadably sleeved on the first external thread section (101), the connecting nut and the positioning ring (103) jointly clamping the side wall of the high-voltage switch cabinet; A first housing (11) is provided with a receiving through hole (110), wherein the receiving through hole (110) comprises a smooth hole section (111) and an internal threaded hole section (112) connected in series, and at least a part of the structure of the second external thread section (102) is inserted into the receiving through hole (110) and is threadedly connected to the internal threaded hole section (112); A pressure-bearing sleeve (12) is sleeved on the outer circumference of the cable (200), the pressure-bearing sleeve (12) is located in the accommodating through hole (110), and at least a part of the structure of the pressure-bearing sleeve (12) is threadedly connected to the internal threaded hole section (112); A pressure ring assembly (13) is sleeved on the outer circumference of the pressure-bearing sleeve (12) and fits the smooth hole section (111). The pressure ring assembly (13) is provided with a wire-pulling structure. At least part of the structure of the armored steel wire (22) is located between the pressure ring assembly (13) and the pressure-bearing sleeve (12), and is clamped and fixed by the pressure ring assembly (13) and the pressure-bearing sleeve (12). The wire-pulling structure places the armored steel wire (22) between the pressure ring assembly (13) and the pressure-bearing sleeve (12). The partial shift between the ring assembly (13) and the pressure-bearing sleeve (12) is an S-shaped curved segment (223); the armored steel wire (22) further comprises a straight segment (221) and a connecting segment (222); the straight segment (221) is arranged on the outer surface of the inner wire skin (21) and extends along the axial direction of the connecting wire (20); the connecting segment (222) is connected between the straight segment (221) and the curved segment (223).

2. The high-voltage switch cabinet cable connector according to claim 1, characterized in that: The pressure-bearing sleeve (12) comprises a pressure-bearing sleeve (120) and a connecting ring (121), wherein the pressure-bearing sleeve (120) is sleeved on the outer circumference of the cable (200), and the connecting ring (121) is fixedly sleeved on the outer circumference of the pressure-bearing sleeve (120), and the outer side wall of the connecting ring (121) is threadedly connected to the internal threaded hole section (112); the smooth hole section (111) comprises a first smooth hole section (1111) and a second smooth hole section (1112) which are connected in series, and the first smooth hole section (1111) is connected in series to the internal threaded hole section (112). The aperture of the second smooth hole section (1112) at one end close to the first smooth hole section (1111) is smaller than the aperture of the first smooth hole section (1111) so as to form a step annular surface (113) between the second smooth hole section (1112) and the first smooth hole section (1111); the pressure ring assembly (13) is sleeved on the outer circumference of the pressure-bearing cylinder (120), one end face of the pressure ring assembly (13) is in contact with the step annular surface (113), and the other end face is in contact with the surface of the connecting ring (121) facing the step annular surface (113).

3. The high-voltage switch cabinet cable connector according to claim 2, characterized in that: The cable (200) connector also includes an inner sleeve (14), which is sleeved on the outer circumference of the cable (200) and located in the wiring through hole (104), the outer wall of the inner sleeve (14) is in contact with the inner wall of the wiring through hole (104), one end of the pressure-bearing cylinder (120) is inserted into the inner sleeve (14), and the pressure-bearing cylinder (120) and the connecting sleeve (10) jointly clamp and fix the inner sleeve (14).

4. The high-voltage switch cabinet cable connector according to claim 1, characterized in that: The curved section (223) comprises a first bending section (2231) and a second bending section (2232) which are connected in series, wherein the first bending section (2231) is connected between the second bending section (2232) and the connecting section (222); and the curvature of the first bending section (2231) is smaller than that of the second bending section (2232).

5. The high-voltage switch cabinet cable connector according to claim 2, characterized in that: The pressure ring assembly (13) comprises two gaskets (131), four pressure rings (132) and three thermal rings (133); the four pressure rings (132) and the three thermal rings (133) are alternately arranged in sequence; one of the gaskets (131) is in contact with the step ring surface (113) and is in contact with the pressure ring (132) closest to the step ring surface (113); the other gasket (131) is in contact with the surface of the connecting ring (121) facing the step ring surface (113) and is in contact with the pressure ring (132) closest to the connecting ring (121); the gasket (131) is elastic; the thickness of the thermal ring (133) increases with the increase of ambient temperature, and the thickness of the thermal ring (133) decreases with the decrease of ambient temperature; The inner side wall of the pressure ring (132) is provided with a plurality of wire-moving teeth (1321), and the wire-moving teeth (1321) are the wire-moving structure; a wire-moving gap (1322) is provided between two adjacent wire-moving teeth (1321), and the number of the wire-moving gaps (1322) is the same as the number of the armored steel wires (22), and each of the armored steel wires (22) passes through a wire-moving gap (1322) of each pressure ring (132) to form the S-shaped curved segment (223).

6. The high-voltage switch cabinet cable connector according to claim 5, characterized in that: The outer side wall of the pressure-bearing cylinder (120) is provided with a guide groove group (122); the guide groove group (122) comprises a first guide groove (1221) and a second guide groove (1222); an end of the first guide groove (1221) away from the connecting ring (121) and an end of the second guide groove (1222) away from the connecting ring (121) are arranged adjacent to each other; an end of the first guide groove (1221) close to the connecting ring (121) and an end of the second guide groove (1222) close to the connecting ring (121) are separated from each other; The inner side wall of the pressure ring (132) is provided with a guide column (1323), and the guide column (1323) of one of the two adjacent pressure rings (132) is embedded in the first guide groove (1221) and can slide along the first guide groove (1221), and the guide column (1323) of the other one is embedded in the second guide groove (1222) and can slide along the second guide groove (1222).

7. The high-voltage switch cabinet cable connector according to claim 6, characterized in that: The first guide groove (1221) comprises a plurality of first straight groove sections (1223) and a plurality of first oblique groove sections (1224) which are connected in series and arranged alternately, the first straight groove section (1223) extending along the axial direction of the pressure bearing cylinder (120), and the first oblique groove section (1224) being arranged obliquely relative to the first straight groove section (1223); The second guide groove (1222) includes a plurality of second straight groove segments (1225) and a plurality of second oblique groove segments (1226) which are connected in series and arranged alternately, the second straight groove segments (1225) extending along the axial direction of the pressure-bearing cylinder (120), and the second oblique groove segments (1226) being arranged obliquely relative to the second straight groove segments (1225).

8. The high-voltage switch cabinet cable connector according to claim 1, characterized in that: The cable (200) connector further comprises a second shell (15), wherein the second shell (15) is sleeved on an end of the first shell (11) away from the connecting sleeve (10); the second shell (15) is provided with a receiving cavity (151) and a wiring opening (1531) connected to the receiving cavity (151), wherein the receiving cavity (151) is connected to the receiving through hole (110), and the cable (200) is passed through the receiving cavity (151) and the wiring opening (1531) and extends to the outside of the second shell (15).

9. The high-voltage switch cabinet cable connector according to claim 8, characterized in that: The second shell (15) comprises a connecting tube (152) and an end plate (153), wherein the end plate (153) is connected to one end of the connecting tube (152), and one end of the connecting tube (152) away from the end plate (153) is threadedly sleeved on one end of the first shell (11) away from the connecting sleeve (10); the connecting tube (152) and the end plate (153) constitute the accommodating cavity (151), and the wiring opening (1531) is opened at the center position of the end plate (153).

10. The high-voltage switch cabinet cable connector according to claim 9, characterized in that: The cable (200) connector further comprises a sealing gasket (16) and a sealing sleeve (17); the sealing sleeve (17) is sleeved on the outer circumference of the cable (200) and is located in the accommodating cavity (151); the sealing gasket (16) is sleeved on the outer circumference of the cable (200) and is located between the sealing sleeve (17) and the first shell (11); an end of the first shell (11) away from the connecting sleeve (10) and the end plate (153) clamp the sealing gasket (16) and the sealing sleeve (17) in a tightly fitting manner.

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