Connecting assembly for coaxial cable outer conductor, installation method thereof and coaxial cable unit

Abstract

The invention discloses a connecting assembly for a coaxial cable outer conductor, an installation method thereof and a coaxial cable unit, and the connecting assembly for the coaxial cable outer conductor comprises a support ring which is used for sleeving an inner insulating layer of a coaxial cable, and an outer conductor of the coaxial cable is used for covering the outer peripheral wall of the support ring; the fastening ring is made of a conductive material and used for being connected outside the connecting part in a sleeving mode, the fastening ring is provided with an avoiding groove penetrating through the inner circumferential wall and the outer circumferential wall of the fastening ring, and the avoiding groove further penetrates through the end face of the fastening ring; the leading-out piece is made of a conductive material and comprises a leading-out ring and a leading-out part connected with the leading-out ring, the inner circumferential wall of the leading-out ring is a second conical surface, the diameter of the second conical surface is gradually increased in the preset direction, the fastening ring is sleeved with the leading-out ring, and the second conical surface and the first conical surface are extruded so that the inner circumferential wall of the fastening ring can be matched with the connecting part in an extrusion mode; the preset direction is the assembling direction when the leading-out ring is connected to the fastening ring in a sleeving mode.

Description

Technical Field

[0001] The present invention relates to the technical field related to coaxial cables, and in particular to a connecting assembly for a coaxial cable outer conductor, an installation method thereof, and a coaxial cable unit. Background Art

[0002] Coaxial cable is a special type of power cable. It has two layers of conductors, inner and outer. Therefore, when making a connection, inner and outer connection fittings are needed to connect or lead out the inner and outer conductors of the coaxial cable at the same time. As a conductive tool that connects the conductor of the cable to the electrical device, the connection fitting has excellent current carrying capacity and conductivity. In power transmission, it can not only transmit electric energy, but also has good mechanical connection performance and maintains the stability of the connection.

[0003] The outer conductor of a coaxial cable is different from other cable conductors in that it is similar to an armor layer wrapped around the inner insulation layer, so it cannot be directly crimped with a fitting like a conventional conductor. In related technologies, the outer conductor of a coaxial cable is led out by twisting it into a strand and then crimping it with a connecting fitting. However, the twisted outer conductor has an obvious tip, which is prone to tip discharge. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a connection assembly for the outer conductor of a coaxial cable, which does not require the outer conductor to be twisted into a strand, reduces the risk of sharp points, and improves safety.

[0005] The present invention also provides a method for installing the connection assembly for the outer conductor of the coaxial cable.

[0006] The present invention also provides a coaxial cable unit having the above-mentioned connection assembly for the outer conductor of the coaxial cable.

[0007] According to the first aspect of the present invention, a connecting assembly for the outer conductor of a coaxial cable comprises: a supporting ring, which is used to be sleeved outside the inner insulating layer of the coaxial cable, and the outer conductor of the coaxial cable is used to cover the outer peripheral wall of the supporting ring, wherein the outer conductor covered on the outer peripheral wall of the supporting ring is defined as a connecting portion; a fastening ring, which is made of conductive material, and is used to be sleeved outside the connecting portion, and the fastening ring is provided with an avoidance groove penetrating the inner and outer two walls of the fastening ring, and the avoidance groove also penetrates the end face of the fastening ring, wherein the fastening ring The outer circumferential wall is a first conical surface, and the diameter of the first conical surface gradually increases along a preset direction; the lead-out piece is made of conductive material, and the lead-out piece includes a lead-out ring and a lead-out portion connected to the lead-out ring, and the inner circumferential wall of the lead-out ring is a second conical surface, and the diameter of the second conical surface gradually increases along the preset direction, the lead-out ring is sleeved outside the fastening ring, and the second conical surface is squeezed with the first conical surface so that the inner circumferential wall of the fastening ring and the connecting portion are squeezed and matched, wherein the preset direction is the assembly direction when the lead-out ring is sleeved on the fastening ring.

[0008] The connecting assembly for the outer conductor of a coaxial cable according to the embodiment of the present invention has at least the following beneficial effects:

[0009] In the connection assembly for the outer conductor of the coaxial cable of the present invention, when the connection assembly is connected to the outer conductor of the coaxial cable, the support ring can be first sleeved on the outer side of the inner insulating layer of the coaxial cable, and then the outer conductor is covered on the outer peripheral wall of the support ring, wherein the outer conductor covered on the outer peripheral wall of the support ring is the connection part, and then the fastening ring is sleeved on the outer side of the connection part of the outer conductor, wherein after the fastening ring is assembled, it is necessary to ensure that the diameter of the outer peripheral wall of the fastening ring gradually increases along the preset direction, and then the lead-out ring of the lead-out piece is sleeved on the outside of the fastening ring, and similarly, in the process of assembling the lead-out piece, it is necessary to ensure that the inner peripheral wall of the lead-out ring gradually increases along the preset direction. In the process of assembling the lead-out piece, the second conical surface can squeeze the first conical surface, so that the lead-out piece and the fastening ring are held together, and because the fastening ring is provided with an avoidance groove penetrating the inner and outer two walls of the fastening ring, the avoidance groove also penetrates the end face of the fastening ring, so that in the process of assembling the lead-out piece, the second conical surface squeezes the first conical surface to cause the fastening ring to deform, thereby clamping the connection part of the outer conductor. In addition, during the assembly process, since the support ring is sleeved outside the inner insulating layer, during the installation of the fastening ring and the lead-out piece, the pressure will be transferred to the support ring, and the support ring can protect the inner insulating layer, reducing the risk of damage to the inner insulating layer. When the outer conductor of the coaxial cable is connected using the above-mentioned connection assembly, it is not necessary to twist the outer conductor of the coaxial cable into a strand, thereby reducing the number of operation steps and avoiding the generation of an obvious tip formed by twisting the outer conductor of the coaxial cable into a strand, thereby reducing the risk of tip discharge and improving safety.

[0010] According to some embodiments of the present invention, there are multiple avoidance grooves, and the multiple avoidance grooves are arranged at intervals along the circumference of the fastening ring.

[0011] According to some embodiments of the present invention, in every two adjacent avoidance grooves, one of the avoidance grooves passes through one end surface of the fastening ring, and the other avoidance groove passes through the other end surface of the fastening ring.

[0012] According to some embodiments of the present invention, an elastic ring coaxially arranged with the support ring is attached to the inner circumferential wall of the support ring, and the elastic ring is used to be sleeved outside the inner insulating layer of the coaxial cable.

[0013] According to some embodiments of the present invention, there are multiple types of the elastic rings, and the elastic rings of different types have different thicknesses. The elastic rings of different types can be selectively connected to the inner circumferential wall of the support ring, and the elastic rings are detachably connected to the support ring.

[0014] According to some embodiments of the present invention, the support ring has a first end and a second end sequentially arranged along the preset direction;

[0015] The outer peripheral wall of the first end of the support ring is connected to a cover ring coaxially arranged with the support ring, the cover ring is provided with an annular slot coaxially arranged with the support ring, the notch of the annular slot is arranged toward the second end of the support ring, the annular slot has a positioning wall arranged opposite to the notch, and the annular slot is used for the end of the connecting portion to be inserted;

[0016] Wherein, the covering ring and the supporting ring are both made of insulating materials.

[0017] According to some embodiments of the present invention, the outer peripheral wall of the first end of the support ring is concave and forms an annular recessed area coaxially arranged with the support ring, and the covering ring is connected to the wall surface of the annular recessed area;

[0018] Wherein, the distance between the outer circumferential wall of the covering ring and the non-annular recessed area on the outer circumferential wall of the supporting ring in the radial direction of the supporting ring is the same as the thickness of the connecting portion.

[0019] According to some embodiments of the present invention, the covering ring has an annular positioning edge, which is arranged around the notch of the annular slot, and the plane where the annular positioning edge is located is perpendicular to the axis of the covering ring, and the annular positioning edge is arranged coplanar with the notch of the annular slot.

[0020] A method for installing a connection assembly for a coaxial cable outer conductor according to a second aspect of the present invention includes:

[0021] Sleeve the support ring outside the inner insulating layer of the coaxial cable, keep the support ring coaxial with the inner insulating layer, and ensure that the first end and the second end of the support ring are arranged along the preset direction;

[0022] The connecting part of the outer conductor is evenly covered on the supporting ring, and the broken end of the connecting part is inserted into the annular slot;

[0023] Using a cutting tool to cut the connection portion along the annular positioning edge to form a new fracture on the connection portion;

[0024] Insert the new broken end of the connecting part into the annular slot again until the new broken end of the connecting part is tightly against the positioning wall of the annular slot;

[0025] Sleeve the fastening ring outside the connecting portion, and make the fastening ring sleeve outside the covering ring, wherein the diameter of the first conical surface of the fastening ring gradually increases along a preset direction;

[0026] The lead-out ring is sleeved on the outside of the fastening ring, and the second conical surface is pressed against the first conical surface so that the inner circumferential wall of the fastening ring is squeezed and fitted with the outer conductor, wherein the diameter of the second conical surface of the lead-out ring gradually increases along a preset direction, and the assembly direction of the lead-out ring when it is sleeved on the fastening ring is the preset direction.

[0027] The method for installing the connecting assembly for the outer conductor of a coaxial cable according to the embodiment of the present invention has at least the following beneficial effects:

[0028] The cutting tool can cut the connection part next to the annular positioning edge, so that a new fracture is formed in the connection part. Under the condition that the support ring is coaxial with the inner insulating layer, since the annular slot and the support ring are coaxially arranged, the plane where the annular positioning edge is located is perpendicular to the axis of the covering ring, and the annular positioning edge and the notch of the annular slot are arranged coplanarly, therefore, the newly formed fracture on the connection part will be very neat, which can avoid the problem of a sharp tip at the fracture end of the outer conductor. Moreover, when the connection part is cut, the newly formed fracture on the connection part is located outside the annular slot. At this time, the support ring can be pushed so that the new fracture end of the connection part is inserted into the annular slot until the new fracture end of the connection part is tightly against the positioning wall of the annular slot. It can be further understood that the new fracture end of the connection part is tightly against the positioning wall of the annular slot, which can indicate that the installation position of the support ring is in place. It should be noted that when the operator installs the support ring, in order to ensure that the installation position of the support ring is in place, it is determined by judging whether the broken end of the connection part is against the positioning wall of the annular slot. In the installation method of the connection assembly of the present invention, it can be ensured that the connection part forms a neatly cut broken end, so as to ensure that the support ring is still coaxial with the inner insulating layer after the broken end of the connection part is against the positioning wall of the annular slot. As shown in the figure, if the connection part is not re-cut, after the broken end of the connection part is against the positioning wall of the annular slot, due to the tilt or unevenness of the broken end of the connection part, the support ring may be deflected, so that the local pressure between the support ring and the inner insulating layer is too large, the contact area between the support ring and the inner insulating layer becomes smaller, and the connection is unreliable. Furthermore, in the process of assembling the lead-out piece, it is necessary to ensure that the inner peripheral wall of the lead-out ring gradually increases along the preset direction. During the process of assembling the lead-out piece, the second conical surface can squeeze the first conical surface, so that the lead-out piece and the fastening ring are butted together, and because the fastening ring is provided with an avoidance groove that penetrates the inner and outer walls of the fastening ring, and the avoidance groove also penetrates the end face of the fastening ring, in this way, during the process of assembling the lead-out piece, the second conical surface squeezes the first conical surface, causing the fastening ring to deform, thereby clamping the connecting portion of the outer conductor. Furthermore, when the outer conductor of the coaxial cable is connected using the above-mentioned connecting assembly, it is not necessary to twist the outer conductor of the coaxial cable into a strand, thereby reducing the number of operating steps, and avoiding the generation of an obvious tip formed by twisting the outer conductor of the coaxial cable into a strand, thereby reducing the risk of tip discharge and improving safety.

[0029] According to the third aspect of the present invention, the coaxial cable unit comprises: a coaxial cable having an inner insulating layer and an outer conductor sleeved outside the inner insulating layer; a connecting assembly for the outer conductor of the coaxial cable as described above, wherein the support ring is sleeved outside the inner insulating layer of the coaxial cable, and the outer conductor of the coaxial cable is covered on the outer peripheral wall of the support ring, and the outer conductor covered on the outer peripheral wall of the support ring is defined as a connecting portion; and the fastening ring is sleeved outside the connecting portion.

[0030] The coaxial cable unit according to the embodiment of the present invention has at least the following beneficial effects:

[0031] In the coaxial cable unit of the present invention, when connecting the connecting assembly to the outer conductor of the coaxial cable, the support ring can be first sleeved on the outer side of the inner insulating layer of the coaxial cable, and then the outer conductor can be covered on the outer peripheral wall of the support ring, wherein the outer conductor covered on the outer peripheral wall of the support ring is the connecting portion, and then the fastening ring is sleeved on the outer side of the connecting portion of the outer conductor, wherein after the fastening ring is assembled, it is necessary to ensure that the diameter of the outer peripheral wall of the fastening ring gradually increases along the preset direction, and then the lead-out ring of the lead-out piece is sleeved on the outside of the fastening ring, and similarly, in the process of assembling the lead-out piece, it is necessary to ensure that the inner peripheral wall of the lead-out ring gradually increases along the preset direction. In the process of assembling the lead-out piece, the second conical surface can squeeze the first conical surface, so that the lead-out piece and the fastening ring are held together, and because the fastening ring is provided with an avoidance groove that runs through the inner and outer two walls of the fastening ring, and the avoidance groove also runs through the end face of the fastening ring, in this way, in the process of assembling the lead-out piece, the second conical surface squeezes the first conical surface, which will cause the fastening ring to deform, thereby clamping the connecting portion of the outer conductor. In addition, during the assembly process, since the support ring is sleeved outside the inner insulating layer, during the installation of the fastening ring and the lead-out piece, the pressure will be transferred to the support ring, and the support ring can protect the inner insulating layer, reducing the risk of damage to the inner insulating layer. When the outer conductor of the coaxial cable is connected using the above-mentioned connection assembly, it is not necessary to twist the outer conductor of the coaxial cable into a strand, thereby reducing the number of operation steps and avoiding the generation of an obvious tip formed by twisting the outer conductor of the coaxial cable into a strand, thereby reducing the risk of tip discharge and improving safety.

[0032] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0034] Figure 1 A schematic diagram of the structure of a coaxial cable according to an embodiment;

[0035] Figure 2 A schematic structural diagram of a connecting assembly for a coaxial cable outer conductor according to an embodiment of the present invention;

[0036] Figure 3 A schematic diagram of the structure of a support ring according to an embodiment of the present invention;

[0037] Figure 4 A schematic diagram of the structure of a fastening ring according to an embodiment of the present invention;

[0038] Figure 5It is a schematic diagram of the three-dimensional structure of a fastening ring according to an embodiment of the present invention;

[0039] Figure 6 A schematic side view of the lead-out member according to an embodiment of the present invention;

[0040] Figure 7 It is a front view structural schematic diagram of a lead-out member according to an embodiment of the present invention;

[0041] Figure 8 A schematic diagram of the three-dimensional structure of a support ring and related accessories according to an embodiment of the present invention;

[0042] Fig. 9 It is a schematic cross-sectional structure diagram of a support ring and related accessories according to an embodiment of the present invention;

[0043] Fig.10 It is a schematic cross-sectional structural diagram of a support ring and related accessories of one embodiment of the present invention when assembled on a coaxial cable;

[0044] Fig.11 for Fig.10 A partial enlarged view of the figure shown;

[0045] Fig.12 Another cross-sectional structural schematic diagram of a support ring and related accessories of an embodiment of the present invention when assembled on a coaxial cable;

[0046] Fig.13 This is another schematic cross-sectional view of the structure of a support ring and related accessories when assembled on a coaxial cable according to an embodiment of the present invention.

[0047] Figure Number:

[0048] 10. coaxial cable; 11. inner conductor; 12. inner insulating layer; 13. outer conductor; 13a. connecting part; 14. outer insulating layer; 15. sheath;

[0049] 100, support ring; 101, first end; 102, second end; 103, annular recessed area;

[0050] 200, fastening ring; 210, first conical surface; 220, avoidance groove;

[0051] 300, lead-out member; 310, lead-out ring; 311, second cone surface; 320, lead-out portion;

[0052] 400, elastic ring;

[0053] 500, covering ring; 510, annular slot; 520, positioning wall; 530, annular positioning edge;

[0054] 600. Limiting ring. DETAILED DESCRIPTION

[0055] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0056] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0057] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] Figure 1 A coaxial cable 10 is shown, which includes an inner conductor 11, an inner insulating layer 12 sleeved outside the inner conductor 11, an outer conductor 13 sleeved outside the inner insulating layer 12, an outer insulating layer 14 sleeved outside the outer conductor 13, and a sheath 15 sleeved outside the outer insulating layer 14.

[0059] The connection end of the coaxial cable 10 is configured as follows: the inner conductor 11 extends out of the inner insulating layer 12 , the inner insulating layer 12 extends out of the outer conductor 13 , the outer conductor 13 extends out of the outer insulating layer 14 , and the outer insulating layer 14 extends out of the sheath 15 .

[0060] It should be noted that the sheath 15, outer insulation layer 14, outer conductor 13, and inner insulation layer 12 of the connecting end of the coaxial cable 10 can be stripped in sequence by stripping, so that the inner conductor 11 of the connecting end of the coaxial cable 10 extends out of the inner insulation layer 12, the inner insulation layer 12 extends out of the outer conductor 13, the outer conductor 13 extends out of the outer insulation layer 14, and the outer insulation layer 14 extends out of the sheath 15.

[0061] It can be understood that different coaxial cables 10 may include other structures.

[0062] Figure 2 A connecting assembly for a coaxial cable outer conductor according to an embodiment of the present invention is shown. Figure 1 and Figure 2 The connection assembly is used to connect the outer conductor 13 of the coaxial cable 10 and can be connected to the conductive core of other cables or other devices.

[0063] like Figure 2 As shown, the connection assembly includes a support ring 100 , a fastening ring 200 and a lead-out piece 300 .

[0064] Combination Figure 1 , Figure 2 and Figure 3 The support ring 100 is used to be sleeved outside the inner insulating layer 12 of the coaxial cable 10, and the outer conductor 13 of the coaxial cable 10 is used to cover the outer peripheral wall of the support ring 100, wherein the outer conductor 13 covered on the outer peripheral wall of the support ring 100 is defined as the connecting portion 13a (refer to Fig.10 ).

[0065] Specifically, the support ring 100 is used to be sleeved on the inner insulating layer 12 located at the connection end of the coaxial cable 10 and extending out of the outer conductor 13, and the outer conductor 13 located at the connection end of the coaxial cable 10 and extending out of the outer insulating layer 14 is evenly covered on the outer peripheral wall of the support ring 100.

[0066] It should be noted that the outer conductor 13 is braided with multiple strands of conductive wires, and the portion located at the break of the outer conductor 13 can be covered on the outer peripheral wall of the support ring 100 under the operation of an operator.

[0067] Combination Figure 1 and Figure 2 The fastening ring 200 is made of a conductive material, such as gold, silver, copper or aluminum. The fastening ring 200 is used to be sleeved outside the connecting portion 13 a of the outer conductor 13 and electrically connected to the outer conductor 13 .

[0068] Combination Figure 2 , Figure 6 and Figure 7The lead-out member 300 is made of a conductive material, such as gold, silver, copper or aluminum. The lead-out member 300 includes a lead-out ring 310 and a lead-out portion 320 connected to the lead-out ring 310. The lead-out ring 310 is sleeved on the outside of the fastening ring 200 and electrically connected to the fastener. The lead-out portion 320 is used to connect to the conductive core of other cables or other devices.

[0069] In this way, under the action of the above-mentioned connecting assembly, the outer conductor 13 of the coaxial cable 10 can be connected with the conductive core of other cables or other devices.

[0070] Combination Figure 2 , Figure 4 and Figure 5 It should be noted that the fastening ring 200 is provided with an avoidance groove 220 which passes through the inner and outer walls of the fastening ring 200, and the avoidance groove 220 also passes through the end surface of the fastening ring 200, wherein the outer peripheral wall of the fastening ring 200 is a first conical surface 210, and the diameter of the first conical surface 210 gradually increases along a preset direction; the inner peripheral wall of the lead-out ring 310 is a second conical surface 311, and the diameter of the second conical surface 311 gradually increases along a preset direction; the lead-out ring 310 is sleeved outside the fastening ring 200, and the second conical surface 311 is squeezed with the first conical surface 210 so that the inner peripheral wall of the fastening ring 200 is squeezed and matched with the connecting portion 13a of the outer conductor 13, wherein the preset direction is the assembly direction when the lead-out ring 310 is sleeved on the fastening ring 200.

[0071] It should be noted that the inner circumferential wall and the outer circumferential wall of the support ring 100 and the inner circumferential wall of the fastening ring 200 are all cylindrical surfaces.

[0072] It can be understood that when connecting the connecting assembly to the outer conductor 13 of the coaxial cable 10, the support ring 100 can be first sleeved on the outside of the inner insulating layer 12 of the coaxial cable 10, and then the outer conductor 13 can be covered on the outer peripheral wall of the support ring 100, wherein the outer conductor 13 covered on the outer peripheral wall of the support ring 100 is the connecting portion 13a, and then the fastening ring 200 is sleeved on the outside of the connecting portion 13a of the outer conductor 13, wherein after the fastening ring 200 is assembled, it is necessary to ensure that the diameter of the outer peripheral wall of the fastening ring 200 gradually increases along the preset direction, and then the lead-out ring 310 of the lead-out piece 300 is sleeved on the outside of the fastening ring 200, and similarly, during the process of assembling the lead-out piece 300, it is necessary to ensure that the inner peripheral wall of the lead-out ring 310 gradually increases along the preset direction.

[0073] It should be noted that when manufacturing the lead-out piece 300 and the fastening ring 200, the size of the first conical surface 210 of the fastening ring 200 should be larger than the size of the second conical surface 311 of the lead-out piece 310. In this way, during the process of assembling the lead-out piece 300, the second conical surface 311 can squeeze the first conical surface 210, so that the lead-out piece 300 and the fastening ring 200 are held together, and since the fastening ring 200 is provided with an escape groove 220 that passes through the inner and outer two walls of the fastening ring 200, and the escape groove 220 also passes through the end surface of the fastening ring 200, in this way, during the process of assembling the lead-out piece 300, the second conical surface 311 squeezes the first conical surface 210, which causes the fastening ring 200 to deform, thereby clamping the connecting portion 13a of the outer conductor 13. In addition, during the assembly process, since the support ring 100 is sleeved outside the inner insulating layer 12, during the installation of the fastening ring 200 and the lead-out piece 300, the pressure will be transmitted to the support ring 100, and the support ring 100 can protect the inner insulating layer 12 and reduce the risk of the inner insulating layer 12 being damaged.

[0074] When the outer conductor 13 of the coaxial cable 10 is connected by using the above-mentioned connecting assembly, there is no need to twist the outer conductor 13 of the coaxial cable 10 into a strand. Therefore, the operation steps can be reduced, and the obvious tip formed after the outer conductor 13 of the coaxial cable 10 is twisted into a strand can be avoided, thereby reducing the risk of tip discharge and improving safety.

[0075] Combination Figure 4 and Figure 5 In some embodiments, the number of the avoidance grooves 220 is multiple, and the multiple avoidance grooves 220 are arranged at intervals along the circumference of the fastening ring 200. In this way, when the fastening ring 200 is squeezed by the lead-out ring 310, the deformation of the fastening ring 200 is more uniform in the circumference of the fastening ring 200, which can improve the contact uniformity between the inner circumferential wall of the fastening ring 200 and the connecting portion 13a.

[0076] Specifically, in each of two adjacent avoidance grooves 220, one avoidance groove 220 penetrates one end surface of the fastening ring 200, and the other avoidance groove 220 penetrates the other end surface of the fastening ring 200. In this way, the strength of both ends of the fastening ring 200 can be made as close as possible, avoiding the problem of low strength of one end surface of the fastening ring 200 when all the avoidance grooves 220 penetrate one end surface of the fastening ring 200.

[0077] like Figures 8 to 10 As shown, in some embodiments, an elastic ring 400 coaxially arranged with the support ring 100 is attached to the inner circumferential wall of the support ring 100 , and the elastic ring 400 is used to be sleeved on the outside of the inner insulating layer 12 of the coaxial cable 10 .

[0078] It can be understood that the elastic ring 400 is used to abut between the inner insulating layer 12 of the coaxial cable 10 and the support ring 100 , so that the support ring 100 can be more reliably sleeved outside the inner insulating layer 12 of the coaxial cable 10 .

[0079] The elastic ring 400 may be made of elastic rubber or elastic plastic.

[0080] It should be noted that there are many types of elastic rings 400 , and different types of elastic rings 400 have different thicknesses. Different types of elastic rings 400 can be selectively connected to the inner circumferential wall of the support ring 100 , and the elastic ring 400 and the support ring 100 are detachably connected.

[0081] It is understandable that different types of elastic rings 400 may be selected according to the different sizes of the outer insulating layer 14 of the coaxial cable 10 , so that the connection assembly can be applicable to more coaxial cables 10 .

[0082] The elastic ring 400 may be attached to the inner circumferential wall of the support ring 100 by bonding, or the elastic ring 400 may be interference fit with the support ring 100 so as to be attached to the inner circumferential wall of the support ring 100 .

[0083] like Figures 9 to 11 As shown, it should be noted that the support ring 100 has a first end 101 and a second end 102 arranged in sequence along a preset direction, and the inner circumferential wall of the first end 101 of the support ring 100 is also connected to a limiting ring 600 coaxially arranged with the support ring 100, and the limiting ring 600 is used to axially limit the elastic ring 400, which can avoid the problem of misalignment between the elastic ring 400 and the support ring 100 in the axial direction of the support ring 100 due to the resistance of the outer insulating layer 14 when the elastic ring 400 and the support ring 100 are assembled together on the coaxial cable 10.

[0084] It should be noted that the support ring 100 and the limiting ring 600 are an integrally formed structure. Of course, in other embodiments, the support ring 100 and the limiting ring 600 can also be manufactured separately, and then the limiting ring 600 is fixed to the support ring 100.

[0085] like Figures 9 to 11 As shown, in some embodiments, the outer peripheral wall of the first end 101 of the support ring 100 is connected to a cover ring 500 coaxially arranged with the support ring 100, and the cover ring 500 is provided with an annular slot 510 coaxially arranged with the support ring 100, the notch of the annular slot 510 is arranged toward the second end 102 of the support ring 100, and the annular slot 510 has a positioning wall 520 arranged opposite to the notch, and the annular slot 510 is used for inserting the end of the connecting portion 13a of the outer conductor 13. Wherein, the cover ring 500 and the support ring 100 are both made of insulating materials.

[0086] It can be understood that after assembling the support ring 100, the broken end of the connecting portion 13a of the outer conductor 13 can be inserted into the annular slot 510, so that the broken end of the connecting portion 13a of the outer conductor 13 is covered, which can reduce the risk of the broken end of the connecting portion 13a of the outer conductor 13 being contaminated by pollutants. At the same time, it can also prevent the safety hazard caused by the broken end of the connecting portion 13a of the outer conductor 13 being exposed.

[0087] Furthermore, the outer peripheral wall of the first end 101 of the support ring 100 is concave to form an annular recessed area 103 coaxially arranged with the support ring 100, and the covering ring 500 is connected to the wall surface of the annular recessed area 103; wherein, the distance between the outer peripheral wall of the covering ring 500 and the non-annular recessed area on the outer peripheral wall of the support ring 100 in the radial direction of the support ring 100 is the same as the thickness of the connecting portion 13a.

[0088] It can be understood that when the broken end of the connecting portion 13a of the outer conductor 13 is inserted into the annular slot 510, the outer peripheral wall of the covering ring 500 is flush with the outer surface of the outer conductor 13 on the non-annular recessed area covering the outer peripheral wall of the support ring 100. In this way, the inner peripheral wall of the fastening ring 200 can be squeezed on the outer surface of the outer conductor 13 and the outer peripheral wall of the covering ring 500, thereby achieving sealing of the connecting portion 13a.

[0089] Furthermore, the covering ring 500 has an annular positioning edge 530 , which is arranged around the notch of the annular slot 510 . The plane where the annular positioning edge 530 is located is perpendicular to the axis of the covering ring 500 . The annular positioning edge 530 and the notch of the annular slot 510 are arranged coplanarly.

[0090] like Fig.12 As shown, it can be understood that the annular positioning edge 530 can position the cutting tool used to cut the outer conductor 13. After the operator uses the cutting tool to cut the outer conductor 13, a new fracture can be formed. By positioning the cutting tool using the annular positioning edge 530, it can be ensured that the fracture is cut more neatly, thereby avoiding the problem of a pointed end of the fracture end of the outer conductor 13.

[0091] Combination Fig.10 and Fig.11 Specifically, the installation method of the above-mentioned connection component includes the following steps:

[0092] S100 , sleeve the support ring 100 onto the inner insulating layer 12 of the coaxial cable 10 , and keep the support ring 100 coaxial with the inner insulating layer 12 .

[0093] Specifically, the support ring 100 is sleeved on the connection end of the coaxial cable 10 and extends outside the inner insulating layer 12 of the outer conductor 13. After the support ring 100 is installed, it should be ensured that the support ring 100 is coaxial with the inner insulating layer 12, that is, the support ring 100 is not biased. In addition, it is necessary to ensure that the notch of the annular slot 510 faces the outer conductor 13.

[0094] like Fig.12 As shown, S200 , the connecting portion 13 a of the outer conductor 13 is evenly covered on the supporting ring 100 , and the broken end of the connecting portion 13 a is inserted into the annular slot 510 .

[0095] Specifically, the outer conductor 13 located at the connection end of the coaxial cable 10 and extending out of the outer insulating layer 14 is evenly covered on the support ring 100, and the broken end of the connecting portion 13a is inserted into the annular slot 510, wherein it should be ensured that in the circumferential direction of the connecting portion 13a, all parts of the connecting portion 13a extend into the annular slot 510, and in this process, the support ring 100 is still ensured to be coaxial with the inner insulating layer 12.

[0096] Combination Fig.11 and Fig.12 , S300, using a cutting tool to cut the connection portion 13a along the annular positioning edge 530 to form a new fracture on the connection portion 13a.

[0097] The cutting tool may be a cutter or an electric saw, and the connection portion 13a may be cut along the annular positioning edge 530, so that a new fracture is formed on the connection portion 13a. Under the condition that the support ring 100 is coaxial with the inner insulating layer 12, since the annular slot 510 is coaxially arranged with the support ring 100, the plane where the annular positioning edge 530 is located is perpendicular to the axis of the cover ring 500, and the notch of the annular positioning edge 530 and the annular slot 510 are arranged coplanarly, the newly formed fracture on the connection portion 13a will be very neat, and the problem of a sharp tip at the fracture end of the outer conductor 13 can be avoided.

[0098] Combination Fig.10 and Fig.11 , S400, insert the new broken end of the connecting portion 13a into the annular slot 510 again until the new broken end of the connecting portion 13a is tightly pressed against the positioning wall 520 of the annular slot 510.

[0099] It can be understood that when the connecting portion 13a is cut, the newly formed fracture on the connecting portion 13a is located outside the annular slot 510. At this time, the support ring 100 can be pushed so that the new fracture end of the connecting portion 13a is inserted into the annular slot 510 until the new fracture end of the connecting portion 13a is tightly pressed against the positioning wall 520 of the annular slot 510.

[0100] It can be further understood that the new broken end of the connecting portion 13 a is tightly pressed against the positioning wall 520 of the annular slot 510 , which indicates that the installation position of the support ring 100 has been in place.

[0101] like Fig.10 As shown, it should be noted that when the operator installs the support ring 100, in order to ensure that the installation position of the support ring 100 is in place, it is determined by judging whether the broken end of the connecting portion 13a is in contact with the positioning wall 520 of the annular slot 510. In the installation method of the connection assembly of the present invention, it can be ensured that the connecting portion 13a forms a neatly cut broken end, thereby ensuring that after the broken end of the connecting portion 13a is in contact with the positioning wall 520 of the annular slot 510, the support ring 100 is still coaxial with the inner insulating layer 12. Fig.13 As shown, if the connecting portion 13a is not re-cut, after the broken end of the connecting portion 13a abuts against the positioning wall 520 of the annular slot 510, the broken end of the connecting portion 13a is tilted or uneven, which may cause the support ring 100 to be skewed, making the local pressure between the support ring 100 and the inner insulating layer 12 too large, and the contact area between the support ring 100 and the inner insulating layer 12 becomes smaller, making the connection unreliable.

[0102] Combination Figure 1 , Figure 2 and Fig.10 , S500, sleeve the fastening ring 200 outside the connecting portion 13a of the outer conductor 13, and sleeve the fastening ring 200 outside the covering ring 500, wherein the diameter of the first conical surface 210 of the fastening ring 200 gradually increases along a preset direction.

[0103] Specifically, after the fastening ring 200 is assembled, it is necessary to ensure that the diameter of the outer peripheral wall of the fastening ring 200 gradually increases along a preset direction.

[0104] S600, the lead-out ring 310 is sleeved on the outside of the fastening ring 200, and the second conical surface 311 is squeezed with the first conical surface 210 so that the inner circumferential wall of the fastening ring 200 is squeezed and matched with the outer conductor 13, wherein the diameter of the second conical surface 311 of the lead-out ring 310 gradually increases along a preset direction, and the assembly direction of the lead-out ring 310 when it is sleeved on the fastening ring 200 is the preset direction.

[0105] Specifically, during the process of assembling the lead-out member 300, it is necessary to ensure that the inner circumferential wall of the lead-out ring 310 gradually increases along a preset direction. During the process of assembling the lead-out member 300, the second conical surface 311 can squeeze the first conical surface 210, so that the lead-out member 300 and the fastening ring 200 are held together, and since the fastening ring 200 is provided with an escape groove 220 that penetrates the inner and outer two walls of the fastening ring 200, and the escape groove 220 also penetrates the end surface of the fastening ring 200, in this way, during the process of assembling the lead-out member 300, the second conical surface 311 squeezes the first conical surface 210, which causes the fastening ring 200 to deform, thereby clamping the connecting portion 13a of the outer conductor 13.

[0106] It should be noted that when the outer conductor 13 of the coaxial cable 10 is connected using the above-mentioned connecting assembly, there is no need to twist the outer conductor 13 of the coaxial cable 10 into a strand. Therefore, the operation steps can be reduced, and the obvious tip formed after the outer conductor 13 of the coaxial cable 10 is twisted into a strand can be avoided, thereby reducing the risk of tip discharge and improving safety.

[0107] The present invention further provides a coaxial cable 10 unit, comprising the coaxial cable 10 and a connecting assembly for the outer conductor of the coaxial cable.

[0108] The coaxial cable 10 comprises an inner insulating layer 12 and an outer conductor 13 sleeved outside the inner insulating layer 12 .

[0109] Specifically, the coaxial cable 10 includes an inner conductor 11, an inner insulating layer 12 sleeved outside the inner conductor 11, an outer conductor 13 sleeved outside the inner insulating layer 12, an outer insulating layer 14 sleeved outside the outer conductor 13, and a sheath 15 sleeved outside the outer insulating layer 14. The connection end of the coaxial cable 10 is configured such that the inner conductor 11 extends out of the inner insulating layer 12, the inner insulating layer 12 extends out of the outer conductor 13, the outer conductor 13 extends out of the outer insulating layer 14, and the outer insulating layer 14 extends out of the sheath 15.

[0110] When connecting the connecting assembly to the outer conductor 13 of the coaxial cable 10, the support ring 100 can be first sleeved on the outside of the inner insulating layer 12 of the coaxial cable 10, and then the outer conductor 13 can be covered on the outer peripheral wall of the support ring 100, wherein the outer conductor 13 covered on the outer peripheral wall of the support ring 100 is the connecting portion 13a, and then the fastening ring 200 is sleeved on the outside of the connecting portion 13a of the outer conductor 13, wherein after the fastening ring 200 is assembled, it is necessary to ensure that the diameter of the outer peripheral wall of the fastening ring 200 gradually increases along the preset direction, and then the lead-out ring 310 of the lead-out piece 300 is sleeved on the outside of the fastening ring 200, and similarly, during the process of assembling the lead-out piece 300, it is necessary to ensure that the inner peripheral wall of the lead-out ring 310 gradually increases along the preset direction. During the process of assembling the lead-out member 300, the second conical surface 311 can squeeze the first conical surface 210, so that the lead-out member 300 and the fastening ring 200 are held together, and since the fastening ring 200 is provided with an escape groove 220 that penetrates the inner and outer two walls of the fastening ring 200, and the escape groove 220 also penetrates the end surface of the fastening ring 200, in this way, during the process of assembling the lead-out member 300, the second conical surface 311 squeezes the first conical surface 210, which causes the fastening ring 200 to deform, thereby clamping the connecting portion 13a of the outer conductor 13. In addition, during the assembly process, since the support ring 100 is sleeved outside the inner insulating layer 12, during the process of installing the fastening ring 200 and the lead-out member 300, pressure will be transmitted to the support ring 100, and the support ring 100 can protect the inner insulating layer 12, reducing the risk of the inner insulating layer 12 being damaged. When the outer conductor 13 of the coaxial cable 10 is connected by using the above-mentioned connecting assembly, there is no need to twist the outer conductor 13 of the coaxial cable 10 into a strand. Therefore, the operation steps can be reduced, and the obvious tip formed after the outer conductor 13 of the coaxial cable 10 is twisted into a strand can be avoided, thereby reducing the risk of tip discharge and improving safety.

[0111] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0112] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A connection assembly for a coaxial cable outer conductor, characterized in that: include: A support ring, used for sleeved outside the inner insulating layer of the coaxial cable, the outer conductor of the coaxial cable is used for covering the outer peripheral wall of the support ring, wherein the outer conductor covering the outer peripheral wall of the support ring is defined as a connecting portion; A fastening ring, which is made of conductive material, is used to be sleeved outside the connecting portion, and is provided with an avoidance groove penetrating the inner and outer walls of the fastening ring, and the avoidance groove also penetrates the end surface of the fastening ring, wherein the outer peripheral wall of the fastening ring is a first conical surface, and the diameter of the first conical surface gradually increases along a preset direction; The lead-out piece is made of conductive material, and includes a lead-out ring and a lead-out portion connected to the lead-out ring. The inner circumferential wall of the lead-out ring is a second conical surface, and the diameter of the second conical surface gradually increases along the preset direction. The lead-out ring is sleeved outside the fastening ring, and the second conical surface is squeezed with the first conical surface so that the inner circumferential wall of the fastening ring is squeezed and matched with the connecting portion, wherein the preset direction is the assembly direction when the lead-out ring is sleeved on the fastening ring.

2. The connection assembly for the coaxial cable outer conductor according to claim 1, characterized in that: There are multiple avoidance grooves, and the multiple avoidance grooves are arranged at intervals along the circumference of the fastening ring.

3. The connection assembly for the coaxial cable outer conductor according to claim 2, characterized in that: In each of two adjacent avoidance grooves, one of the avoidance grooves penetrates one end surface of the fastening ring, and the other avoidance groove penetrates the other end surface of the fastening ring.

4. The connection assembly for the coaxial cable outer conductor according to claim 1, characterized in that: An elastic ring coaxially arranged with the support ring is attached to the inner peripheral wall of the support ring, and the elastic ring is used for sleeved outside the inner insulating layer of the coaxial cable.

5. The connection assembly for the coaxial cable outer conductor according to claim 4, characterized in that: There are many types of elastic rings, and different types of elastic rings have different thicknesses. Different types of elastic rings can be selectively connected to the inner circumferential wall of the support ring, and the elastic ring is detachably connected to the support ring.

6. The connection assembly for the coaxial cable outer conductor according to claim 1, characterized in that: The support ring has a first end and a second end arranged in sequence along the preset direction; The outer peripheral wall of the first end of the support ring is connected to a cover ring coaxially arranged with the support ring, the cover ring is provided with an annular slot coaxially arranged with the support ring, the notch of the annular slot is arranged toward the second end of the support ring, the annular slot has a positioning wall arranged opposite to the notch, and the annular slot is used for the end of the connecting portion to be inserted; Wherein, the covering ring and the supporting ring are both made of insulating materials.

7. The connection assembly for the coaxial cable outer conductor according to claim 6, characterized in that: The outer peripheral wall of the first end of the support ring is concave to form an annular recessed area coaxially arranged with the support ring, and the covering ring is connected to the wall surface of the annular recessed area; Wherein, the distance between the outer circumferential wall of the covering ring and the non-annular recessed area on the outer circumferential wall of the supporting ring in the radial direction of the supporting ring is the same as the thickness of the connecting portion.

8. The connection assembly for the outer conductor of a coaxial cable according to claim 6 or 7, characterized in that: The covering ring has an annular positioning edge, which is arranged around the notch of the annular slot, and the plane where the annular positioning edge is located is perpendicular to the axis of the covering ring, and the annular positioning edge is arranged coplanar with the notch of the annular slot.

9. A method for installing a connection assembly for a coaxial cable outer conductor as claimed in claim 8, characterized in that: include: Sleeve the support ring outside the inner insulating layer of the coaxial cable, keep the support ring coaxial with the inner insulating layer, and ensure that the first end and the second end of the support ring are arranged along the preset direction; The connecting part of the outer conductor is evenly covered on the supporting ring, and the broken end of the connecting part is inserted into the annular slot; Using a cutting tool to cut the connection portion along the annular positioning edge to form a new fracture on the connection portion; Insert the new broken end of the connecting part into the annular slot again until the new broken end of the connecting part is tightly against the positioning wall of the annular slot; Sleeve the fastening ring outside the connecting portion, and make the fastening ring sleeve outside the covering ring, wherein the diameter of the first conical surface of the fastening ring gradually increases along a preset direction; The lead-out ring is sleeved on the outside of the fastening ring, and the second conical surface is pressed against the first conical surface so that the inner circumferential wall of the fastening ring is squeezed and fitted with the outer conductor, wherein the diameter of the second conical surface of the lead-out ring gradually increases along a preset direction, and the assembly direction of the lead-out ring when it is sleeved on the fastening ring is the preset direction.

10. A coaxial cable unit, characterized in that: include: A coaxial cable having an inner insulating layer and an outer conductor sleeved outside the inner insulating layer; A connection assembly for a coaxial cable outer conductor as described in any one of claims 1 to 9, wherein the support ring is sleeved outside the inner insulating layer of the coaxial cable, and the outer conductor of the coaxial cable is covered on the outer peripheral wall of the support ring, and the outer conductor covered on the outer peripheral wall of the support ring is defined as a connecting portion; and the fastening ring is sleeved outside the connecting portion.

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