A cable connector for power distribution cabinet with self-locking function

Abstract

The present invention discloses a power distribution cabinet cable connector with a self-locking function, and relates to the technical field of cable connectors. The present invention includes a connecting shell, which is fixedly installed on the bottom of the power distribution cabinet, and the inner top of the connecting shell is penetrated with multiple groups of upper wire holes, and also includes a bottom sleeve, the interior of the bottom sleeve is provided with a hexagonal groove, and the inner top of the hexagonal groove is provided with multiple groups of lower wire holes, and a rubber wire core is bonded between the bottom sleeve and the connecting shell, and the interior of the rubber wire core is provided with multiple groups of inner wire holes. The present invention is very convenient for threading because the lower wire hole, the inner wire hole and the upper wire hole are in the same straight line. After threading, the bottom sleeve is rotated, and the bottom sleeve drives the rubber wire core to rotate, and the rubber wire core and the cable are simultaneously turned into a spiral shape, and the rubber wire core tightly wraps the cable, and the spiral friction and limiting force can prevent the cable from being pulled, and it is a flexible clamping and will not damage the cable.

Description

Technical Field

[0001] The present invention relates to the technical field of cable connectors, and in particular to a distribution cabinet cable connector having a self-locking function. Background Art

[0002] Cable connectors are mainly suitable for signal transmission between distribution cabinets, internal connections of optoelectronic transmission equipment and distribution frames. They are used to transmit data, audio, video and other communication equipment. They mainly meet the needs of mutual docking through the friction force of the cable ends.

[0003] The existing cable connectors are not sufficient to cope with the external pulling of the cables, which may cause the connector and the cable to loosen easily and cause poor contact. In the document (application number: CN202410050302.3), a cable connector for a distribution cabinet with a self-locking function is disclosed. The connector also uses an abutment anti-slip ring connected by a limit spring to abut the connection between the main autonomous contact block and the auxiliary autonomous contact block, so that the cable locking sleeve is connected to the cable body, and the cable is clamped. The clamping force is used to prevent the cable from being pulled. Although it can prevent the cable from being pulled, the device is a rigid clamp. In order to prevent the cable from being pulled, a large clamping force is required, which is easy to clamp the cable casing. The cable structure may be damaged, resulting in an increased electrical safety risk. At the same time, the device has a complex structure and high manufacturing cost. Summary of the invention

[0004] The object of the present invention is to solve the above-mentioned problems, the present invention provides a distribution cabinet cable connector with a self-locking function.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A power distribution cabinet cable connector with a self-locking function, comprising a connecting shell, the connecting shell is fixedly mounted on the bottom of the power distribution cabinet, an outer side of the connecting shell is provided with an external thread, a locking nut is threadedly connected to the external thread, and a plurality of groups of upper wire holes are formed through the inner top of the connecting shell, and the plurality of groups of upper wire holes are distributed in a circumference;

[0007] It also includes a bottom sleeve, wherein a hexagonal groove is provided inside the bottom sleeve, and a plurality of lower wire holes are provided on the inner top of the hexagonal groove, wherein the lower wire holes are arranged corresponding to the upper wire holes, and an internal nut is slidably connected inside the hexagonal groove, and the internal nut is threadedly connected to the external thread;

[0008] A rubber wire core is bonded between the bottom sleeve and the connecting outer shell, and a plurality of groups of inner wire holes are provided inside the rubber wire core, and the inner wire holes are arranged corresponding to the upper wire holes. An inner support rod is arranged inside the rubber wire core, and the inner support rod is rotatably installed between the bottom sleeve and the connecting outer shell, and a plurality of groups of inner skeletons are rotatably installed on the outer side of the inner support rod, and the plurality of groups of inner skeletons are distributed at equal intervals.

[0009] Furthermore, a mounting flange is provided on the top of the connecting shell, and the mounting flange is fixed to the bottom of the distribution cabinet by bolts. The radius of the mounting flange is larger than the radius of the wire hole at the bottom of the distribution cabinet, and the radius of the bottom sleeve is smaller than the radius of the wire hole.

[0010] Further, the rubber wire core is made of flame retardant silicone.

[0011] Further, the inner wall of the inner wire hole is provided with friction protrusions.

[0012] Furthermore, the top and bottom of the rubber wire core are provided with multiple groups of connection holes, the inner top of the connection shell is provided with multiple groups of upper connection columns, and the inner bottom of the hexagonal groove is provided with multiple groups of lower connection columns, and the upper connection columns and the lower connection columns can be inserted into the connection holes.

[0013] Furthermore, an upper rotating sleeve is rotatably installed on the top of the connecting shell, and a lower rotating sleeve is rotatably installed on the bottom of the bottom sleeve. The top and bottom of the inner support rod are both provided with connecting threaded holes, and the upper rotating sleeve and the lower rotating sleeve can be fixedly installed on the connecting threaded holes by bolts.

[0014] Furthermore, multiple groups of mounting protrusions are arranged on the outer side of the inner support rod, and the mounting protrusions are arranged corresponding to the inner skeleton. The inner skeleton is composed of two groups of frame plates, and the two groups of frame plates are fixed together by bolts. The inner walls of the two groups of frame plates are provided with mounting ring grooves, and the frame plates can be sleeved on the mounting protrusions through the mounting ring grooves.

[0015] Furthermore, the frame piece is designed to be V-shaped.

[0016] Further, the outer shape of the bottom sleeve is designed in a hexagonal shape.

[0017] The beneficial effects of the present invention are as follows:

[0018] The present invention makes threading very convenient by making the lower thread hole, the inner thread hole and the upper thread hole be in the same straight line. After threading, the bottom sleeve is rotated to drive the rubber wire core to rotate. The rubber wire core and the cable are simultaneously turned into a spiral shape, and the rubber wire core tightly wraps the cable. The spiral friction force and the limiting force can prevent the cable from being pulled, and the cable is flexibly clamped without damaging the cable.

[0019] The present invention twists the rubber core and the cable into a spiral shape at the same time, and the device can clamp cables of different specifications. The soft rubber clamping can ensure the sealing of the clamping position without the need for an additional sealing structure. The clamping effect is good, and multiple groups of cables can be clamped separately to prevent mutual influence between the cables, with high clamping safety.

[0020] The present invention arranges an inner support rod and an inner skeleton in the rubber wire core. The inner support rod can improve the overall tensile strength of the rubber wire core, and the inner skeleton can provide local tensile strength for the rubber wire core, which can greatly ensure the vertical structural stability of the rubber wire core. Moreover, under the guiding action of the inner skeleton, the spiral forming of the rubber wire core is more uniform, the spiral limiting force of the cable is greater, and the anti-pulling effect is better.

[0021] The present invention can complete cable clamping and sealing by connecting the shell, bottom sleeve and rubber wire core. It has a simple and compact structure, low manufacturing cost, and is convenient to connect. It is suitable for large-scale promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the power distribution cabinet of the present invention;

[0023] Figure 2 The connector structure of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 3 The connector structure of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 4 It is an exploded view of the present invention;

[0026] Figure 5 is a cross-sectional schematic diagram of the connection housing of the present invention;

[0027] Figure 6 It is a cross-sectional schematic diagram of the bottom sleeve and the inner nut of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the rubber wire core of the present invention;

[0029] Figure 8 It is a schematic diagram of the cross-sectional structure of the rubber wire core of the present invention;

[0030] Fig. 9 It is a schematic diagram of the inner strut and inner skeleton structure of the present invention.

[0031] Figure numerals: 1. Connecting shell; 11. Mounting flange; 12. Locking nut; 13. Upper wire hole; 14. Upper connecting column; 15. Upper rotating sleeve; 2. Bottom sleeve; 21. Hexagonal groove; 22. Lower wire hole; 23. Lower connecting column; 24. Lower rotating sleeve; 3. Inner nut; 4. Rubber wire core; 41. Inner wire hole; 42. Friction protrusion; 43. Connecting hole; 5. Inner support rod; 51. Mounting convex ring; 52. Connecting threaded hole; 6. Inner skeleton; 61. Mounting ring groove. DETAILED DESCRIPTION

[0032] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0033] Embodiment 1, as Figure 1-Figure 9 As shown, a power distribution cabinet cable connector with a self-locking function includes a connecting shell 1, which is fixedly installed at the bottom of the power distribution cabinet, an outer side of the connecting shell 1 is provided with an external thread, a locking nut 12 is threadedly connected to the external thread, and a plurality of groups of upper wire holes 13 are formed through the inner top of the connecting shell 1, and the plurality of groups of upper wire holes 13 are distributed in a circumference;

[0034] The bottom sleeve 2 is provided with a hexagonal groove 21, and a plurality of lower wire holes 22 are provided at the inner top of the hexagonal groove 21. The lower wire holes 22 are arranged corresponding to the upper wire holes 13. An inner nut 3 is slidably connected to the inner part of the hexagonal groove 21, and the inner nut 3 is threadedly connected to the outer thread.

[0035] A rubber wire core 4 is bonded between the bottom sleeve 2 and the connecting shell 1. A plurality of inner wire holes 41 are provided inside the rubber wire core 4. The inner wire holes 41 are arranged corresponding to the upper wire holes 13. An inner support rod 5 is arranged inside the rubber wire core 4. The inner support rod 5 is rotatably installed between the bottom sleeve 2 and the connecting shell 1. A plurality of inner skeletons 6 are rotatably installed on the outer side of the inner support rod 5. The plurality of inner skeletons 6 are distributed at equal intervals.

[0036] During installation, the connecting shell 1 is fixedly installed in the wire hole at the bottom of the distribution cabinet, and the external thread part is located below the distribution cabinet. Then, the locking nut 12 and the inner nut 3 are threadedly connected to the external thread, and the locking nut 12 is located above the inner nut 3. Then, the rubber wire core 4 is bonded between the connecting shell 1 and the bottom sleeve 2, and the inner support rod 5 is rotated and installed between the connecting shell 1 and the bottom sleeve 2, and the inner nut 3 is inserted into the hexagonal groove 21. The device installation is completed, the structure is simple, and the manufacturing cost is low. It should be noted that the rubber wire core 4 is injection molded on the outer surface of the inner support rod 5 to ensure the structural integrity of the rubber wire core 4;

[0037] At this time, the lower wire hole 22, the inner wire hole 41 and the upper wire hole 13 are in the same straight line, and the cable can be easily passed through the device for connection. Moreover, through the arrangement of multiple sets of lower wire holes 22, inner wire holes 41 and upper wire holes 13, multiple sets of cables can be passed through, and adjacent cables will not contact each other, and the threading safety is high. Then rotate the bottom sleeve 2, the bottom sleeve 2 drives the rubber wire core 4 to rotate, and the rubber wire core 4 drives the cable to rotate synchronously. The rubber wire core 4 and the cable are turned into a spiral shape at the same time. Since the positions of the two ends of the rubber wire core 4 remain unchanged, the rubber wire core 4 will be twisted and clamped on the cable, thereby softly clamping the cable, and the clamping effect is good. The rubber wire core 4 Under the action of multiple groups of inner skeletons 6, the cable is spiraled in a stable posture, and a certain spiral limiting force is given to the cable after spiraling, and the friction between the rubber wire core 4 and the cable can effectively prevent the cable from being pulled, and the protection effect is good. At the same time, the bottom sleeve 2 drives the inner nut 3 to rotate through the hexagonal groove 21, and the inner nut 3 rises under the action of the external thread. The inner nut 3 limits the rotation of the bottom sleeve 2 through the friction between the external thread, and at the same time, the locking nut 12 is screwed down, and the locking nut 12 is pressed tightly on the inner nut 3. The friction between the locking nut 12 and the inner nut 3 again limits the rotation of the bottom sleeve 2, ensuring the stability of the device.

[0038] Since the present invention twists the rubber wire core 4 and the cable into a spiral shape at the same time, the device can clamp cables of different specifications, and the sealing of the clamping position can be ensured by the rubber soft clamping, without the need to set up an additional sealing structure, the clamping effect is good, and multiple groups of cables can be clamped separately to prevent the cables from affecting each other, and the clamping safety is high;

[0039] In the present invention, an inner support rod 5 and an inner skeleton 6 are arranged in the rubber core 4. The inner support rod 5 can improve the overall tensile strength of the rubber core 4, and the inner skeleton 6 can provide local tensile strength for the rubber core 4, which can greatly ensure the vertical structural stability of the rubber core 4. Moreover, under the guiding action of the inner skeleton 6, the spiral forming of the rubber core 4 is more uniform, the spiral limiting force of the cable is greater, and the anti-pulling effect is better.

[0040] Furthermore, the outer shape of the bottom sleeve 2 is designed in a hexagonal shape, and by this design, it is easy to drive the bottom sleeve 2 to rotate.

[0041] Embodiment 2: Based on the above-mentioned embodiment, a connecting housing 1 installation structure is provided;

[0042] like Figure 5As shown, a mounting flange 11 is provided on the top of the connecting shell 1, and the mounting flange 11 is fixedly installed on the bottom of the distribution cabinet by bolts. The radius of the mounting flange 11 is larger than the radius of the threading hole at the bottom of the distribution cabinet, and the radius of the bottom sleeve 2 is smaller than the radius of the threading hole. Through the arrangement of this embodiment, during installation, the locking nut 12 and the inner nut 3 are first threadedly connected on the external thread, and the locking nut 12 is located above the inner nut 3, and then the rubber wire core 4 is bonded between the connecting shell 1 and the bottom sleeve 2, and the inner support rod 5 is rotatably installed between the connecting shell 1 and the bottom sleeve 2, and the inner nut 3 is inserted into the hexagonal groove 21, the device assembly is completed in advance, and then the device as a whole is installed in the wire hole at the bottom of the distribution cabinet, which is more convenient to install.

[0043] Embodiment three, based on the above embodiment, also includes that the rubber core 4 is made of flame-retardant silicone. Flame-retardant silicone rubber is a material with good fire resistance, usually used in applications that need to maintain stability and fire safety in high temperature environments. Silicone rubber itself has excellent high temperature resistance, weather resistance and electrical insulation properties, which makes it widely used in many industries and specific engineering fields. By utilizing the softness of silicone rubber itself, the rubber core 4 can be better wrapped with the cable, and the clamping effect is better.

[0044] Embodiment 4, based on the above embodiment, further includes that the inner wall of the inner wire hole 41 is provided with a friction protrusion 42. By providing the friction protrusion 42, the friction force between the rubber wire core 4 and the cable can be increased, and the clamping effect is better.

[0045] Embodiment 5: Based on the above-mentioned embodiments, a rubber wire core 4 bonding structure is provided;

[0046] like Figure 5-Figure 7 As shown, the top and bottom of the rubber wire core 4 are provided with multiple groups of connecting holes 43, the inner top of the connecting shell 1 is provided with multiple groups of upper connecting columns 14, and the inner bottom of the hexagonal groove 21 is provided with multiple groups of lower connecting columns 23, and the upper connecting columns 14 and the lower connecting columns 23 can be inserted into the connecting holes 43.

[0047] During installation, first apply a certain amount of glue on one end of the rubber core 4 and the connecting hole 43 of the end, then insert the end of the rubber core 4 into the hexagonal groove 21, and insert the lower connecting column 23 into the connecting hole 43 to complete the preliminary bonding of the rubber core 4, and then apply glue on the other end, then insert the end into the connecting shell 1, and insert the upper connecting column 14 into the connecting hole 43 to complete the bonding of the rubber core 4. Through the setting of the bonding structure, not only can the rubber core 4 be bonded and positioned to ensure that the rubber core 4 is located in the center of the device, so that the lower wire hole 22, the inner wire hole 41 and the upper wire hole 13 are in the same straight line, but also the bonding area can be increased, and the bonding stability is high. In addition, through the setting of the upper connecting column 14, the lower connecting column 23 and the connecting hole 43, the rubber core 4 can be prevented from rotating relative to the bottom sleeve 2 and the connecting shell 1, and the transmission is more stable.

[0048] Embodiment 6, based on the above embodiment, further includes: an upper rotating sleeve 15 is rotatably installed on the top of the connecting shell 1, a lower rotating sleeve 24 is rotatably installed on the bottom of the bottom sleeve 2, and connecting threaded holes 52 are opened on the top and bottom of the inner support rod 5, and the upper rotating sleeve 15 and the lower rotating sleeve 24 can be fixed on the connecting threaded holes 52 by bolts.

[0049] After the rubber wire core 4 is bonded, the inner support rod 5 can be easily rotated and installed between the connecting shell 1 and the bottom sleeve 2 by passing the bolt through the upper rotating sleeve 15 and the lower rotating sleeve 24. The installation is more convenient, and the bottom sleeve 2 can rotate relative to the connecting shell 1. At the same time, the inner support rod 5 can improve the tensile strength of the device.

[0050] Embodiment 7: Based on the above-mentioned embodiment, an inner frame 6 installation structure is provided;

[0051] like Fig. 9 As shown, multiple groups of mounting convex rings 51 are arranged on the outer side of the inner support rod 5, and the mounting convex rings 51 are arranged corresponding to the inner skeleton 6. The inner skeleton 6 is composed of two groups of frame plates, and the two groups of frame plates are fixed together by bolts. The inner walls of the two groups of frame plates are provided with mounting ring grooves 61, and the frame plates can be sleeved on the mounting convex rings 51 through the mounting ring grooves 61.

[0052] During installation, the two sets of frame pieces are placed together on the outside of the inner skeleton 6, and the mounting convex ring 51 is located in the mounting ring groove 61, and then the two sets of frame pieces are fixed with bolts. The inner skeleton 6 can rotate relative to the inner support rod 5, which will not affect the torsion of the rubber core 4, but will provide the rubber core 4 with a stable supporting force, making the torsion of the rubber core 4 more stable.

[0053] Further, the frame sheet has a V-shaped design, through which the closed inner frame 6 can stably support the surroundings of the rubber wire core 4, making the support more stable.

[0054] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A power distribution cabinet cable connector with a self-locking function, comprising a connecting housing (1), characterized in that: The connecting shell (1) is fixedly mounted on the bottom of the power distribution cabinet, an outer side of the connecting shell (1) is provided with an external thread, a locking nut (12) is threadedly connected to the external thread, and a plurality of groups of upper thread holes (13) are formed through the inner top of the connecting shell (1), and the plurality of groups of upper thread holes (13) are distributed in a circumference; It also includes a bottom sleeve (2), wherein the bottom sleeve (2) has a hexagonal groove (21) formed inside, and the inner top of the hexagonal groove (21) has a plurality of lower wire holes (22), and the lower wire holes (22) are arranged correspondingly to the upper wire holes (13), and the inner part of the hexagonal groove (21) is slidably connected to an inner nut (3), and the inner nut (3) is threadedly connected to the outer thread, and a rubber wire core (4) is bonded between the bottom sleeve (2) and the connecting shell (1), and the inner part of the rubber wire core (4) has a plurality of inner wire holes (41), and the inner wire holes (41) are arranged correspondingly to the upper wire holes (13), and an inner support rod (5) is arranged inside the rubber wire core (4), and the inner support rod (5) is rotatably installed between the bottom sleeve (2) and the connecting shell (1), and the outer side of the inner support rod (5) is rotatably installed with a plurality of inner skeletons (6), and the plurality of inner skeletons (6) are distributed at equal intervals; An upper rotating sleeve (15) is rotatably mounted on the top of the connecting shell (1), and a lower rotating sleeve (24) is rotatably mounted on the bottom of the bottom sleeve (2). The top and bottom of the inner support rod (5) are both provided with connecting threaded holes (52), and the upper rotating sleeve (15) and the lower rotating sleeve (24) can be fixedly mounted on the connecting threaded holes (52) by means of bolts. A plurality of groups of mounting convex rings (51) are arranged on the outer side of the inner support rod (5), and the mounting convex rings (51) are arranged corresponding to the inner frame (6). The inner frame (6) is composed of two groups of frame plates, and the two groups of frame plates are fixedly connected together by means of bolts. The inner walls of the two groups of frame plates are both provided with mounting ring grooves (61), and the frame plates can be sleeved on the mounting convex rings (51) through the mounting ring grooves (61). The frame plates are designed in a V-shape.

2. A power distribution cabinet cable connector with self-locking function according to claim 1, characterized in that: A mounting flange (11) is provided on the top of the connection housing (1), and the mounting flange (11) is fixedly mounted on the bottom of the power distribution cabinet by means of bolts, wherein the radius of the mounting flange (11) is greater than the radius of the threading hole at the bottom of the power distribution cabinet, and the radius of the bottom sleeve (2) is smaller than the radius of the threading hole.

3. A power distribution cabinet cable connector with self-locking function according to claim 1, characterized in that: The rubber wire core (4) is made of flame-retardant silicone.

4. A power distribution cabinet cable connector with self-locking function according to claim 3, characterized in that: The inner wall of the inner wire hole (41) is provided with a friction protrusion (42).

5. A power distribution cabinet cable connector with self-locking function according to claim 4, characterized in that: The top and bottom of the rubber wire core (4) are provided with a plurality of connection holes (43); the inner top of the connection housing (1) is provided with a plurality of upper connection columns (14); the inner bottom of the hexagonal groove (21) is provided with a plurality of lower connection columns (23); and the upper connection columns (14) and the lower connection columns (23) can both be plugged into the connection holes (43).

6. A power distribution cabinet cable connector with self-locking function according to claim 1, characterized in that: The bottom sleeve (2) has a hexagonal shape.

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