High-tensile cable entry device structure of connector
By designing a high tensile cable introduction device for connectors, clamping wire armored cables using a specific combination of cone sleeves and bushings, the problem of cables being easily displaced, slipped or pulled out in load-bearing applications is solved, achieving high-strength cable connections and tensile performance improvements.
Patent Information
- Application Number
- CN202411722376.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-02-28
AI Technical Summary
The prior art is difficult to effectively fix and connect the wire armored load-bearing cable and the connector, resulting in the cable being easily displaced, slipped or pulled out in load-bearing applications, posing safety hazards.
A high tensile cable introduction device structure for connectors is designed, including a connector housing, tensile cable unit, jacket and tail nut. The inner and outer steel wires are firmly clamped and locked by threaded screws to securely fix the cable on the connector housing.
It realizes a firm connection between the wire armored load-bearing cable and the connector, improves the tensile performance of the cable, and can work normally under axial tension of 6 tons, avoids the problems of cable displacement, slip and pull-off, and ensures the safety and reliability of the cable.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of mechanics, in particular to the field of electromechanical components, and specifically to a high tensile cable lead-in device structure for a connector. More specifically, the present application provides a cable lead-in device for a connector, which can achieve high tensile performance, meet the requirements of cable load-bearing applications in certain specific scenarios, and is conducive to expanding the application scope of load-bearing cable connectors. Background Art
[0002] The general structure of cable entry device is as follows: Figure 1 When using this cable entry device, first pass each component through the cable in sequence, then peel off a section of the cable outer rubber, leaving enough length to expose the aramid wire with a moderate length; then, put the aramid wire outside the bushing, and use a binding band to tighten the aramid wire to fix the aramid wire on the bushing; then, install the connector housing, and then install the sealing sleeve, compression sleeve, and tail nut in sequence, tighten them, and connect the tail nut to the connector housing; finally, use screws to lock and fix the cable with the clamping block to seal and clamp the cable; thus, the cable can withstand a certain amount of pulling.
[0003] The structure of a steel wire armored load-bearing cable is as follows Figure 2 As shown, from inside to outside, it is composed of soft copper stranded wire, insulation layer, protective layer, inner armored steel wire layer, and outer armored steel wire layer. Specifically, the steel wire armored load-bearing cable is a cable insulation sheath with two layers of steel wires tightly wound around it, with 12 wires in the inner layer and 18 wires in the outer layer (i.e., the inner armored steel wire layer has 12 wires and the outer armored steel wire layer has 18 wires). Each layer of steel wire is spirally wound around the cable, and the spiral directions of the inner and outer layers of steel wire are opposite (i.e., the spiral directions of the inner armored steel wire layer and the outer armored steel wire layer are opposite). The cable can withstand an axial tensile force of more than 5 tons.
[0004] Figure 3 The structural diagram of a steel wire armored cable is given, which includes an outer armored steel wire layer, a cable core, an insulating layer, an outer steel wire, and an inner steel wire.
[0005] To this end, the present application provides a high-tensile cable introduction device structure of a connector to meet the connection load-bearing requirements of the connector and the steel wire armored load-bearing cable. Summary of the invention
[0006] The purpose of the invention is to provide a high tensile cable introduction device structure of the connector for solving the problem of how to achieve fixed connection and load-bearing between the load-bearing cable and the connector, which usually adopts outer steel wire and inner steel wire in the existing steel wire armored cable structure. The invention can achieve the connection and fixation between the load-bearing cable and the connector, load-bearing and tensile resistance, and improve the load-bearing and tensile resistance performance.
[0007] In order to achieve the above object, the present invention adopts the following technical solution: A high-tensile cable introduction device structure of a connector, comprising a connector housing, a tensile cable unit for directly clamping a cable, a jacket, and a tail nut; The cable comprises a cable core, an insulation layer, an inner wire layer, and an outer wire layer, and the cable core, the insulation layer, the inner wire layer, and the outer wire layer are arranged in sequence from the inside to the outside; The connector housing comprises a first housing tube and a first limit baffle, wherein the first limit baffle is arranged in the first housing tube and the first limit baffle and the first housing tube are integrally formed; One end of the first shell tube is provided with a first tail thread matched with the tail nut, and the other end of the first shell tube is provided with a first connecting thread; the first shell tube is connected to the tail nut through the first tail thread, and a first tensile space for arranging the tensile cable unit and the jacket is formed between the first limit baffle, the inner wall of the first shell tube, and the tail nut; The first limit baffle is provided with a first through hole, and the insulating layer and the cable core in the insulating layer can pass through the first through hole; The tensile cable unit comprises a cushion block, an inner cone sleeve, a middle cone sleeve, a bushing, a rear cone sleeve, and a double cone sleeve. The cushion block is sleeved on the insulating layer. The cushion block is arranged in the first tensile space and is located at one end of the first tensile space close to the first limit baffle. The outer surface of the inner cone sleeve is provided with a first cone surface, the inner cone sleeve is sleeved on the insulating layer, one end of the inner wire layer is arranged along the first cone surface, and one end of the inner cone sleeve close to the first limit baffle can be against the cushion block; The inner surface of the middle cone sleeve is provided with a second inner cone surface, the outer surface of the middle cone sleeve is provided with a second outer cone surface, and the middle cone sleeve is located between the inner wire layer and the outer wire layer; The bushing includes a third threading tube and a third annular protrusion, wherein the third annular protrusion is arranged on one end of the third threading tube close to the first limit baffle, and the third threading tube and the third annular protrusion are connected as a whole; the bushing is sleeved on the outer steel wire, and the third annular protrusion is located on one end of the bushing close to the cushion block; The outer surface of the rear cone sleeve is provided with a fourth cone surface, and the rear cone sleeve is sleeved on an end of the third threading tube away from the first limit baffle; The outer wire layer is arranged in sequence along the outer surface of the third annular protrusion, the outer surface of the third threading tube, and the fourth conical surface; The outer surface of the double-cone sleeve matches with the inner surface of the first shell tube and the first shell tube can limit the double-cone sleeve. The inner surface of the double-cone sleeve is provided with a fifth front cone surface matching with the third annular protrusion and a fifth rear cone surface matching with the fourth cone surface. The double-cone sleeve is arranged on the outer surface of the bushing and can clamp the outer wire layer through the matching between the fifth front cone surface and the third annular protrusion and the matching between the fifth rear cone surface and the fourth cone surface. The jacket comprises a sixth ring plate and a sixth cone sleeve, the sixth ring plate is in a circular shape, the outer surface of the sixth cone sleeve is provided with a sixth cone surface, and the sixth cone sleeve is connected to the sixth ring plate as a whole; The jacket is sleeved on the outer wire layer, and the jacket is attached to an end of the third threading tube away from the cushion block; The tail nut comprises a seventh fixing tube, the outer surface of the seventh fixing tube is provided with a seventh thread matched with the first tail thread, and the tail nut and the connector housing can be threadedly connected by the seventh thread on the seventh fixing tube and the first tail thread; The inner surface of the seventh fixed tube is provided with a seventh conical surface matched with the sixth conical surface, and the tail nut can make the jacket and the third threading tube, and the jacket and the rear conical sleeve respectively fit together through the cooperation of the seventh conical surface and the sixth conical surface on the seventh fixed tube; The seventh fixing tube is provided with a seventh through hole and the outer wire layer can pass through the seventh through hole to enter the first tensile-resistant space.
[0008] The inner wire layer is an inner layer of steel wires, and the outer wire layer is an outer layer of steel wires.
[0009] The spiral directions of the inner wire layer and the outer wire layer in the cable are opposite.
[0010] The cushion block is provided with a first arcuate surface matched with the third annular protrusion, and the outer thread layer can be clamped through the cooperation between the first arcuate surface and the outer surface of the third annular protrusion.
[0011] The insulating layer is arranged on the outer wall of the cable core, the inner wire layer is arranged on the outer wall of the insulating layer, and the outer wire layer is arranged on the outer wall of the inner wire layer.
[0012] The plane where the first limit baffle is located is perpendicular to the axis of the first shell tube.
[0013] The first connecting thread is used to connect to the connector body component.
[0014] The first conical surface can tilt the inner wire layer relative to the axial direction of the cable core.
[0015] The inner cone sleeve and the rear cone sleeve are arranged facing each other.
[0016] The small end of the sixth cone sleeve is located on one side of the sleeve close to the tail nut.
[0017] The tail nut also includes a seventh end plate. The seventh fixed tube is tubular, the seventh end plate is plate-shaped, the seventh end plate is connected to an end of the seventh fixed tube away from the tensile cable unit, and the seventh fixed tube and the seventh end plate are connected as a whole.
[0018] The tensile cable unit further comprises a rubber sleeve, which is arranged on the outer surface of the outer wire layer, and the rubber sleeve is respectively located between the outer wire layer and the seventh through hole, and between the outer wire layer and the inner side of the jacket.
[0019] Application of the high tensile strength cable entry device structure of the above connector.
[0020] The high tensile cable lead-in structure of the connector is used in deep well oil drilling rig detection cables.
[0021] The steps include: (1) Put all the parts on the cable in sequence, split the left end of the cable, and expose part of the inner and outer wire layers at the split end; (2) Then, place the inner cone sleeve between the insulation layer and the inner wire layer of the cable, and then place the middle cone sleeve between the inner wire layer and the outer wire layer of the cable. Use tools to tighten the inner cone sleeve and the middle cone sleeve like a wedge to play a clamping and limiting role; (3) The outer wire layer is bent along the arc surface of the third annular protrusion so that the surface of the outer wire layer is in contact with the outer surface of the third threading tube and the fourth conical surface; the double-conical sleeve is then placed on the outer wire layer, and the outer wire layer is clamped by the cooperation of the bushing, the double-conical sleeve, and the rear conical sleeve; the three are tightly plugged like a wedge by a tool to play a clamping and limiting role; (4) Install the spacer on the left end of the inner cone sleeve, middle cone sleeve, bushing, double cone sleeve and rear cone sleeve to limit the displacement of the corresponding parts; (5) Slide the connector housing onto the left end of the tensile cable assembly that has been processed previously, rotate the tail nut and the connector housing thread, and tighten the sleeve to complete the installation of the introduction device.
[0022] The following steps are also included: (6) Connect the introduction device to the connector body through the first connecting thread.
[0023] In step 2, the rubber sleeve is placed on the right end of the tensile cable assembly.
[0024] The present invention designs a connection introduction device for a special armored cable and a connector. Based on the improved structure, the connection introduction device is combined with a steel wire armored load-bearing cable, and can meet the needs of normal operation under the premise of withstanding 6 tons of axial tension. The present application effectively solves the problems of cable displacement, slipping, and pulling off that may occur in general cable introduction devices, and can effectively prevent the risks of the cable being pulled off from the inside of the connector, the conductor being damaged or destroyed, and the conductor being short-circuited. The present invention realizes the high-strength tensile cable introduction function and the connection between the cable and the connector main body shell, which can meet the load-bearing and tensile requirements of deep well oil drilling rig detection cables thousands of meters underground, and has extremely high application value. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The present invention will now be described by way of example with reference to the accompanying drawings, in which: Figure 1 This is a structural schematic diagram of an existing cable entry device.
[0026] Figure 2 This is a schematic diagram of the structure of a steel wire armored load-bearing cable.
[0027] Figure 3 This is a schematic diagram of the structure of a steel wire armored cable.
[0028] Figure 4 It is a structural schematic diagram of the combination of the tensile cable unit and the cable.
[0029] Figure 5 This is a schematic diagram of the structure of the connector's high-tensile-resistance cable entry device.
[0030] Figure 6 This is a schematic diagram of cable routing and branching.
[0031] Figure 7 Schematic diagram of the bending and shaping of the outer steel wire of the cable.
[0032] Figure 8 This is the front view of the jacket.
[0033] Fig. 9 A side view of the jacket.
[0034] Fig.10 It is a three-dimensional schematic diagram of the jacket.
[0035] Markings in the figure: 1. Cable core wire, 2. Aramid wire, 3. Cable outer rubber, 4. Wire clamp block, 5. Tail nut, 6. Compression sleeve, 7. Sealing sleeve, 8. Compression sleeve, 9. Bushing, 10. Binding tape, 11. Potting glue, 12. Connector shell, 13. Soft copper stranded wire, 14. Insulation layer, 15. Protective layer, 16. Inner armored steel wire layer, 17. Outer armored steel wire layer, 18. Insulation layer, 19. Outer steel wire, 20. Inner steel wire, 21. Spacer, 22. Inner cone sleeve, 23. Middle cone sleeve, 24. Bushing, 25. Rear cone sleeve, 26. Double cone sleeve, 27. Rubber sleeve, 28. Connector shell, 29. Tensile cable unit, 30. Jacket, 31. Tail nut. DETAILED DESCRIPTION
[0036] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.
[0037] Any feature disclosed in this specification, unless otherwise stated, can be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.
[0038] Example 1 As mentioned above, the surface of the existing steel wire armored cable structure is usually provided with an insulating layer. If the external lead-in device is welded to the outer steel wire of the steel wire armored cable structure by fusion welding methods such as argon arc welding, the high temperature will destroy the insulation protection of the cable, so welding is absolutely not used. If the outer steel wire is fixed by binding, firstly, the steel wire itself is very hard and slippery, and it cannot be tied; secondly, 10 times the radius of the steel wire is the bending radius of the steel wire, and it cannot be bent at will. Hard bending will cause the steel wire to break.
[0039] To this end, the present embodiment provides a high-tensile cable introduction device for a connector, which includes a connector housing, a tensile cable unit for directly clamping the cable, a jacket, and a tail nut. It should be noted that the cable is the object of the introduction device of the present application. The cable includes a cable core, an insulation layer, an inner wire layer, and an outer wire layer, and the cable core, the insulation layer, the inner wire layer, and the outer wire layer are sequentially wrapped as a whole from the inside to the outside. In this embodiment, the inner wire layer is an inner steel wire, and the outer wire layer is an outer steel wire. In the cable, the spiral direction of the inner steel wire is opposite to that of the outer steel wire.
[0040] The connector housing includes a first housing tube and a first limit baffle. As shown in the figure, the first limit baffle is arranged in the first housing tube, and the first limit baffle and the first housing tube are integrally formed. A first tail thread matching with a tail nut is arranged at one end of the first housing tube, and a first connecting thread is arranged at the other end of the first housing tube. The first housing tube is connected to the tail nut through the first tail thread, and a first tensile space for arranging a tensile cable unit and a jacket is formed between the first limit baffle, the inner wall of the first housing tube, and the tail nut. A first through hole is arranged on the first limit baffle, and the insulating layer and the cable core in the insulating layer can pass through the first through hole.
[0041] In this embodiment, the tensile cable unit includes a cushion block, an inner cone sleeve, a middle cone sleeve, a bushing, a rear cone sleeve, and a double cone sleeve. Among them, the cushion block is sleeved on the insulating layer, the cushion block is arranged in the first tensile space, and the cushion block is located at one end of the first tensile space close to the first limit baffle. The outer surface of the inner cone sleeve is provided with a first cone surface, the inner cone sleeve is sleeved on the insulating layer, one end of the inner steel wire is arranged along the first cone surface, and the end of the inner cone sleeve close to the first limit baffle can be against the cushion block. The inner surface of the middle cone sleeve is provided with a second inner cone surface, the outer surface of the middle cone sleeve is provided with a second outer cone surface, and the middle cone sleeve is located between the inner steel wire and the outer steel wire.
[0042] The bushing includes a third threading tube and a third annular protrusion. The third annular protrusion is arranged on one end of the third threading tube close to the first limit baffle, and the third threading tube is connected to the third annular protrusion as a whole. The bushing is sleeved on the outer steel wire, and the third annular protrusion is located on one end of the bushing close to the cushion block. The outer surface of the rear cone sleeve is provided with a fourth cone surface, and the rear cone sleeve is sleeved on one end of the third threading tube away from the first limit baffle. At the same time, the outer steel wire is arranged along the outer surface of the third annular protrusion, the outer surface of the third threading tube, and the fourth cone surface in sequence. Further, the cushion block is provided with a first arc surface that matches the third annular protrusion, and the outer steel wire can be clamped by the cooperation between the first arc surface and the outer surface of the third annular protrusion. At the same time, the inner cone sleeve and the rear cone sleeve are arranged opposite to each other. Further, the middle cone sleeve and the rear cone sleeve are arranged opposite to each other.
[0043] The outer surface of the double-cone sleeve matches the inner surface of the first shell tube, and the first shell tube can limit the double-cone sleeve. The inner surface of the double-cone sleeve is provided with a fifth front cone surface matching the third annular protrusion and a fifth rear cone surface matching the fourth cone surface. The double-cone sleeve is arranged on the outer surface of the bushing, and the outer layer steel wire can be clamped by the matching between the fifth front cone surface and the third annular protrusion, and the matching between the fifth rear cone surface and the fourth cone surface.
[0044] The jacket comprises a sixth ring plate and a sixth cone sleeve. The sixth ring plate is in a circular shape. The outer surface of the sixth cone sleeve is provided with a sixth cone surface. The sixth cone sleeve is connected to the sixth ring plate as a whole. The jacket is provided on the outer layer of steel wire, and the jacket is fitted on the end of the third threading tube away from the cushion block. The small end of the sixth cone sleeve is located on the side of the jacket close to the tail nut.
[0045] The tail nut includes a seventh fixed tube. In one example, the seventh fixed tube is tubular, and the outer surface of the seventh fixed tube is provided with a seventh thread that matches the first tail thread, and the threaded connection between the tail nut and the connector housing can be achieved through the cooperation of the seventh thread on the seventh fixed tube and the first tail thread. The inner surface of the seventh fixed tube is provided with a seventh conical surface that matches the sixth conical surface, and the tail nut can fit the jacket and the third threading tube, and the jacket and the rear cone sleeve together respectively through the cooperation of the seventh conical surface on the seventh fixed tube and the sixth conical surface, providing a pressing thrust. The seventh fixed tube is provided with a seventh through hole, and the outer wire layer can pass through the seventh through hole into the first tensile space. Preferably, the tail nut also includes a seventh end plate, the seventh end plate is plate-shaped, the seventh end plate is connected to one end of the seventh fixed tube away from the tensile cable unit, and the seventh end plate is connected to the seventh fixed tube as a whole, and the outer wire layer can pass through the seventh through hole into the first tensile space.
[0046] Furthermore, the tensile cable unit also includes a rubber sleeve, which is arranged on the outer surface of the outer wire layer. The rubber sleeve is respectively located between the outer wire layer and the seventh through hole and between the outer wire layer and the inner side of the jacket to increase the friction between the steel wire and the jacket.
[0047] Furthermore, the first connecting thread is used to connect to the connector body component, the plane where the first limit baffle is located is perpendicular to the axis of the first shell tube, and the first conical surface can lift the inner thread layer axially relative to the cable core.
[0048] The installation method of the aforementioned introduction device comprises the following steps: (1) Put all the parts on the cable in sequence, split the left end of the cable, and expose part of the inner and outer wire layers at the split end; (2) Then, place the inner cone sleeve between the insulation layer and the inner wire layer of the cable, and then place the middle cone sleeve between the inner wire layer and the outer wire layer of the cable. Use tools to tighten the inner cone sleeve and the middle cone sleeve like a wedge to play a clamping and limiting role; (3) The outer wire layer is bent along the arc surface of the third annular protrusion so that the surface of the outer wire layer is in contact with the outer surface of the third threading tube and the fourth conical surface; the double-conical sleeve is then placed on the outer wire layer, and the outer wire layer is clamped by the cooperation of the bushing, the double-conical sleeve, and the rear conical sleeve; the three are tightly plugged like a wedge by a tool to play a clamping and limiting role; (4) Install the spacer on the left end of the inner cone sleeve, middle cone sleeve, bushing, double cone sleeve and rear cone sleeve to limit the displacement of the corresponding parts; (5) Slide the connector housing onto the left end of the tensile cable assembly that has been processed previously, rotate the tail nut and the connector housing thread, and tighten the sleeve to complete the installation of the introduction device.
[0049] Furthermore, after the introduction device is installed, the introduction device can be connected to the connector body component through the first connecting thread.
[0050] Furthermore, in step (2), the rubber sleeve is installed on the right end of the tensile cable assembly.
[0051] In one example, the introduction device structure is used in a deep well oil drilling rig detection cable, and the sample sample can withstand a tensile force of at least 5 tons.
[0052] In this application, the connector housing is the part connected to the connector main structure, which is the load-bearing, position-limiting and protective shell of the cable tension assembly. The parts of the cable tension assembly are assembled into a tension cable unit after the steel wire is shaped by tooling. Figure 4 In the present application, the inner cone sleeve, the middle cone sleeve, the bushing, the rear cone sleeve and the double cone sleeve are matched to ensure that the inner steel wire and the outer steel wire are firmly clamped between the cone sleeve and the bushing.
[0053] The tensile cable unit is fixed inside the first tensile space by screwing and locking, limiting the loosening of the steel wire caused by the displacement of the parts in the tensile cable unit, thereby achieving the effect of cable clamping and steel wire tensile resistance. With this structure, the cable core and the insulation layer in the cable are not subjected to stress, and the tensile force borne by the cable is finally transmitted to the connector housing to form a connector as a whole, thereby improving the overall tensile resistance of the connector.
[0054] The present invention is not limited to the above-mentioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.
Claims
1. A high tensile cable entry structure of a connector, characterized in that: It includes a connector housing, a tensile cable unit for directly clamping the cable, a jacket, and a tail nut; The cable comprises a cable core, an insulation layer, an inner wire layer, and an outer wire layer, and the cable core, the insulation layer, the inner wire layer, and the outer wire layer are arranged in sequence from the inside to the outside; The connector housing comprises a first housing tube and a first limit baffle, wherein the first limit baffle is arranged in the first housing tube and the first limit baffle and the first housing tube are integrally formed; One end of the first shell tube is provided with a first tail thread matched with the tail nut, and the other end of the first shell tube is provided with a first connecting thread; the first shell tube is connected to the tail nut through the first tail thread, and a first tensile space for arranging the tensile cable unit and the jacket is formed between the first limit baffle, the inner wall of the first shell tube, and the tail nut; The first limit baffle is provided with a first through hole, and the insulating layer and the cable core in the insulating layer can pass through the first through hole; The tensile cable unit comprises a cushion block, an inner cone sleeve, a middle cone sleeve, a bushing, a rear cone sleeve, and a double cone sleeve. The cushion block is sleeved on the insulating layer. The cushion block is arranged in the first tensile space and is located at one end of the first tensile space close to the first limit baffle. The outer surface of the inner cone sleeve is provided with a first cone surface, the inner cone sleeve is sleeved on the insulating layer, one end of the inner wire layer is arranged along the first cone surface, and one end of the inner cone sleeve close to the first limit baffle can be against the cushion block; The inner surface of the middle cone sleeve is provided with a second inner cone surface, the outer surface of the middle cone sleeve is provided with a second outer cone surface, and the middle cone sleeve is located between the inner wire layer and the outer wire layer; The bushing includes a third threading tube and a third annular protrusion, wherein the third annular protrusion is arranged on one end of the third threading tube close to the first limit baffle, and the third threading tube and the third annular protrusion are connected as a whole; the bushing is sleeved on the outer steel wire, and the third annular protrusion is located on one end of the bushing close to the cushion block; The outer surface of the rear cone sleeve is provided with a fourth cone surface, and the rear cone sleeve is sleeved on an end of the third threading tube away from the first limit baffle; The outer wire layer is arranged in sequence along the outer surface of the third annular protrusion, the outer surface of the third threading tube, and the fourth conical surface; The outer surface of the double-cone sleeve matches with the inner surface of the first shell tube and the first shell tube can limit the double-cone sleeve. The inner surface of the double-cone sleeve is provided with a fifth front cone surface matching with the third annular protrusion and a fifth rear cone surface matching with the fourth cone surface. The double-cone sleeve is arranged on the outer surface of the bushing and can clamp the outer wire layer through the matching between the fifth front cone surface and the third annular protrusion and the matching between the fifth rear cone surface and the fourth cone surface. The jacket comprises a sixth ring plate and a sixth cone sleeve, the sixth ring plate is in a circular shape, the outer surface of the sixth cone sleeve is provided with a sixth cone surface, and the sixth cone sleeve is connected to the sixth ring plate as a whole; The jacket is sleeved on the outer wire layer, and the jacket is attached to an end of the third threading tube away from the cushion block; The tail nut comprises a seventh fixing tube, the outer surface of the seventh fixing tube is provided with a seventh thread matched with the first tail thread, and the tail nut and the connector housing can be threadedly connected by the seventh thread on the seventh fixing tube and the first tail thread; The inner surface of the seventh fixed tube is provided with a seventh conical surface matched with the sixth conical surface, and the tail nut can make the jacket and the third threading tube, and the jacket and the rear conical sleeve respectively fit together through the cooperation of the seventh conical surface and the sixth conical surface on the seventh fixed tube; The seventh fixing tube is provided with a seventh through hole and the outer wire layer can pass through the seventh through hole to enter the first tensile-resistant space.
2. The introduction device according to claim 1, characterized in that: The cushion block is provided with a first arcuate surface matched with the third annular protrusion, and the outer thread layer can be clamped through the cooperation between the first arcuate surface and the outer surface of the third annular protrusion.
3. The introduction device according to claim 1 or 2, characterized in that: The plane where the first limit baffle is located is perpendicular to the axis of the first shell tube.
4. The introduction device according to claim 1, 2 or 3, characterized in that: The first connecting thread is used to connect to the connector body component.
5. The introduction device according to claim 1, characterized in that: The first conical surface can tilt the inner wire layer relative to the axial direction of the cable core.
6. The introduction device according to any one of claims 1 to 5, characterized in that: The tail nut also includes a seventh end plate. The seventh fixed tube is tubular, the seventh end plate is plate-shaped, the seventh end plate is connected to an end of the seventh fixed tube away from the tensile cable unit, and the seventh fixed tube and the seventh end plate are connected as a whole.
7. The introduction device according to any one of claims 1 to 6, characterized in that: The tensile cable unit further comprises a rubber sleeve, which is arranged on the outer surface of the outer wire layer, and the rubber sleeve is respectively located between the outer wire layer and the seventh through hole, and between the outer wire layer and the inner side of the jacket.
8. Application of the high tensile cable entry structure of the connector according to any one of claims 1 to 7.
9. The use according to claim 1, characterized in that: The steps include: (1) Put all the parts on the cable in sequence, split the left end of the cable, and expose part of the inner and outer wire layers at the split end; (2) Then, place the inner cone sleeve between the insulation layer and the inner wire layer of the cable, and then place the middle cone sleeve between the inner wire layer and the outer wire layer of the cable. Use tools to tighten the inner cone sleeve and the middle cone sleeve like a wedge to play a clamping and limiting role; (3) The outer wire layer is bent along the arc surface of the third annular protrusion so that the surface of the outer wire layer is in contact with the outer surface of the third threading tube and the fourth conical surface; the double-conical sleeve is then placed on the outer wire layer, and the outer wire layer is clamped by the cooperation of the bushing, the double-conical sleeve, and the rear conical sleeve; the three are tightly plugged like a wedge by a tool to play a clamping and limiting role; (4) Install the spacer at one end of the inner cone sleeve, middle cone sleeve, bushing, double cone sleeve and rear cone sleeve to limit the displacement of the corresponding parts; (5) Slide the connector housing onto one end of the tensile cable assembly that has been processed previously, rotate the tail nut and the connector housing thread, and tighten the sleeve to complete the installation of the introduction device.