Tail accessory of conical chuck connector, use method and connector

Abstract

The invention belongs to the technical field of connectors, and particularly relates to a conical chuck connector tail accessory, a using method and a connector, the tail of the connector is provided with the conical chuck connector tail accessory, the conical chuck connector tail accessory comprises a wire clamping cap and a connecting nut, an inner cavity of the rear end of the wire clamping cap is a conical hole, and the connecting nut is arranged in the conical hole. A conical chuck is inserted into the conical hole, the outer wall of the front end part of the conical chuck is a wedge-shaped surface, and a shielding layer of the cable is turned backwards and outwards and is clamped between the wedge-shaped surface and the conical hole; the rear end of the wire clamping cap is in threaded connection with a locking nut, the inner wall of the locking nut can extrude the rear end of the conical chuck forwards and inwards when the locking nut is screwed, a threading sleeve is embedded in the conical chuck, a cable penetrates through the threading sleeve, and the threading sleeve extends backwards out of the conical chuck. A conical chuck structure is arranged in the tail accessory of the connector, the function of clamping shielding wires and cables is achieved, meanwhile, a threading sleeve is additionally arranged at the tail of the tail accessory, the stress of the cables is reduced, and the threading sleeve is clamped.

Description

Technical Field

[0001] This invention belongs to the field of connector technology, specifically relating to a tapered clamp connector tail accessory and its usage method, and a connector. Background Technology

[0002] As indispensable components in electronic devices, electrical connectors and their tail accessories are widely used in fields such as electronic communications and aerospace. The main functions of connector tail accessories include: protecting the termination points of wires and contacts, securing cables, and improving the connector's environmental resistance, sealing performance, and electromagnetic shielding. Connector tail accessories are crucial for ensuring the long-term reliable operation of connectors in harsh environments; without proper stress relief, locking, and sealing, the connector itself is likely to fail rapidly. When implementing multiple functions, the number of parts in connector tail accessories increases, and the structure becomes more complex. For example, achieving cable clamping and securing requires a pressure plate structure in the tail accessory, and achieving good electromagnetic shielding (360° shielding) requires a clamping ring or clamping collar structure.

[0003] The following problems exist with existing connector tail accessories during assembly and use:

[0004] 1) Most existing connector tail accessories use external pressure plates to clamp the wire harness. However, in situations where installation space is limited but wire harness clamping is still required, the use of pressure plate accessories will be restricted.

[0005] 2) Pressure plate type accessories usually consist of one or two pressure plates, two screws, and two washers. The assembly process of the pressure plates is relatively complicated, and it is also necessary to take into account the anti-loosening of the screws.

[0006] 3) When electromagnetic shielding and cable clamping functions are implemented simultaneously, there are a large number of parts inside the tail accessory, making it inconvenient to assemble the tail accessory.

[0007] 4) The cable at the tail outlet of the existing tail accessory pressure plate is prone to bending under stress, and there is currently a lack of a good anti-bending device at this location. Summary of the Invention

[0008] To solve the above-mentioned technical problems, the present invention provides a tapered clamp connector tail accessory and its usage method, as well as a connector.

[0009] The objective of this invention is achieved through the following technical solution. A conical clamp connector tail accessory according to this invention includes a wire clamp cap and a connecting nut at the front end of the wire clamp cap for connection to the tail of the connector. The inner cavity of the rear end of the wire clamp cap is a conical hole, the inner diameter of which gradually increases from front to back. A conical clamp is inserted into the conical hole. The outer wall of the front end of the conical clamp is a wedge-shaped surface matching the conical hole. A cable passes through the conical clamp, and the conductor in the cable passes through the wire clamp cap and the connecting nut, enabling connection with the contacts inside the connector. The cable's shielding layer is turned outwards and clamped between the wedge-shaped surface and the conical hole. A locking nut is threaded to the rear end of the wire clamp cap. The rear end of the conical clamp extends beyond the wire clamp cap. When the locking nut is screwed on, its inner wall can press forward and inward against the rear end of the conical clamp. A cable threading sleeve is nested inside the conical clamp, and a cable passes through the cable threading sleeve. The cable threading sleeve extends backwards to form the conical clamp.

[0010] Furthermore, the outer wall of the wire clamp cap is provided with a positioning groove, and the inner wall of the connecting nut is provided with a corresponding groove, with a retaining spring nested in the positioning groove and the groove of the connecting nut.

[0011] Furthermore, the front end face of the wire clamp cap is provided with anti-rotation end teeth for engaging with the end teeth at the tail of the connector.

[0012] Furthermore, the inner wall of the wire clamp cap is provided with a limiting step (33) for stopping the forward-facing conical clamp.

[0013] Furthermore, the inner wall of the locking nut is provided with a stop and limiting structure for the rearward stop cone-shaped chuck so that the cone-shaped chuck is pushed forward when the locking nut is screwed on.

[0014] Furthermore, the outer wall of the rear end of the tapered chuck is provided with a quarter spherical surface so that the outer diameter of the rear end of the tapered chuck gradually decreases from front to back, and the inner wall of the locking nut is provided with a tapered surface for pressing the spherical surface.

[0015] Furthermore, the inner wall of the tapered chuck is provided with a serrated groove to increase the axial friction between the tapered chuck and the cable.

[0016] Furthermore, the wall of the conical chuck is circumferentially distributed with several oblique wedges I and / or oblique wedges II. Oblique wedges I are slotted with the front end face of the conical chuck as the reference, and oblique wedges II are slotted with the rear end face of the conical chuck as the reference. Oblique wedges I and oblique wedges II do not coincide with the generatrix of the conical chuck so that oblique wedges I and oblique wedges II are set at an angle.

[0017] Furthermore, the inner wall of the tapered clamp is provided with a slot, and the outer wall of the threading sleeve is provided with a boss nested in the slot.

[0018] Furthermore, the outer wall of the threading sleeve has several U-shaped serrations distributed axially, and the U-shaped serrations extend circumferentially on the outer wall of the threading sleeve.

[0019] Furthermore, the outer wall of the rear end of the cable threading sleeve is provided with a binding groove for nesting steel cable ties to lock the cable threading sleeve and the cable.

[0020] A method for using a tapered collet connector tail accessory includes the following steps:

[0021] Connect the wire clamp and the connecting nut to form an assembly;

[0022] The threading sleeve, locking nut, tapered clamp, and the aforementioned components are sequentially placed onto the cable;

[0023] Strip the outer sheath from the end of the cable, terminate the wires in the cable with the contacts in the connector, and turn the cable shield wire outward.

[0024] The component is screwed onto the tail of the connector;

[0025] Force the protrusion of the threading sleeve into the slot of the tapered clamp;

[0026] Turn the shielding wire outward onto the wedge-shaped surface of the tapered clamp, and then push the tapered clamp axially into the tapered hole of the wire clamp cap, clamping the cable shielding layer through the tapered surface engagement;

[0027] The locking nut is screwed axially into the external thread of the wire clamp cap. The conical surface of the locking nut presses against the spherical surface of the conical chuck. The opening at the rear end of the conical chuck gradually narrows to clamp the wire sleeve. The locking nut's stop and limit structure stops the conical chuck, causing it to move axially into the wire clamp cap. The wedge-shaped surface presses against the conical chuck, causing the opening at the front end to gradually narrow to clamp the cable, and the engagement with the conical hole clamps the shielding layer.

[0028] Steel cable ties are inserted into the binding groove of the cable threading sleeve to further secure the cable threading sleeve and the cable.

[0029] A connector having a tail attachment at its tail end, wherein the tail attachment is a tail attachment for a tapered clamp connector as described in any one of claims 1-11.

[0030] Compared with the prior art, the advantages of the present invention are:

[0031] The structure of installing a tapered clamp in the connector tail accessory realizes the clamping function of the shielding wire and cable. At the same time, a cable bending resistance structure (wire guide sleeve) is added to the tail of the tail accessory to reduce the stress on the cable at the tail of the tail accessory. The tapered clamp can also clamp the wire guide sleeve.

[0032] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the purpose, features and advantages of the present invention more obvious and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0033] Figure 1 This is an assembly sectional view of an embodiment of a tapered collet connector tail accessory according to the present invention;

[0034] Figure 2 for Figure 1 A cross-sectional view of the center clip cap;

[0035] Figure 3a for Figure 1 Side view of the conical chuck;

[0036] Figure 3b for Figure 1 A cross-sectional view of a conical chuck;

[0037] Figure 4 for Figure 1 A cross-sectional view of the locking nut;

[0038] Figure 5 for Figure 1 A cross-sectional view of the threaded sleeve;

[0039] Figure 6 for Figure 1 An explosion diagram.

[0040] Figure label:

[0041] 1-Connecting nut;

[0042] 2-Snap ring;

[0043] 3-Wire clamp cap, 31-Anti-rotation end tooth, 32-Positioning groove, 33-Limiting step, 34-Tapered hole, 35-External thread;

[0044] 4-Conical chuck, 41-Wedge-shaped surface, 42-Spherical surface, 43-Serpentine groove I, 44-Wedge groove I, 45-Wedge groove II, 46-Slot, 47-Serpentine groove II;

[0045] 5-Locking nut, 51-Internal thread, 52-Conical surface, 53-Stop and limit structure;

[0046] 6-Threading sleeve, 61-Leading boss, 62-U-shaped serration, 63-Binding groove;

[0047] 7-Cable. Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] An embodiment of the present invention provides a conical clamp connector tail accessory, such as... Figures 1 to 6 As shown, the tail accessory includes a connecting nut 1, a retaining ring 2, a wire clamp 3, a tapered clamp 4, a locking nut 5, a wire threading sleeve 6, and a cable 7. The description will focus on the end of the tail accessory that connects to the connector.

[0050] The structure of the wire cap 3 is as follows Figure 2 As shown, the cable 7 passes through the inner cavity of the wire clamp cap 3. The front end face of the wire clamp cap 3 has circumferentially distributed anti-rotation teeth 31, which mesh with the teeth at the tail of the connector to achieve anti-rotation. The outer wall of the wire clamp cap 3 near the front end has a positioning groove 32. A retaining spring 2 is nested within the positioning groove 32 to achieve locking with the connecting nut 1. The inner wall of the front end of the connecting nut 1 has threads that connect with the threaded portion of the connector tail. The connecting nut 1 is threaded to the connector tail to fix the tail accessory onto the connector, and the cable 7 passes through the inner cavity of the front end of the connecting nut 1. The inner wall of the rear end of the connecting nut 1 is fitted onto the outer wall of the front end of the wire clamp cap 3. The inner wall of the rear end of the connecting nut 1 has a groove corresponding to the positioning groove 32. The retaining spring 2 is engaged in the positioning groove 32 and the groove of the connecting nut 1 to achieve locking between the wire clamp cap 3 and the connecting nut 1. After the connecting nut 1 is connected to the connector tail, the connector tail passes through the connecting nut 1 and inserts into the inner cavity of the wire clamp 3. To prevent the conical chuck 4 installed in the inner cavity of the rear end of the wire clamp 3 from being squeezed too tightly, causing interference between the conical chuck 4 and the connector tail, a limiting step 33 is provided on the inner wall of the wire clamp 3. When the conical chuck 4 is pressed too tightly and installed too far forward, the limiting step 33 stops it from interfering with the connector tail. The inner wall of the rear end of the wire clamp 3 has a conical surface, so that the inner diameter of the rear end of the wire clamp 3 gradually increases from front to back, forming a conical hole 34. This conical hole 34 fits with the outer wall of the conical chuck 4, and the taper of the conical hole 34 is 1:10. The outer wall of the tail of the wire clamp 3 has an external thread 35 for locking with the locking nut 5.

[0051] The structure of the conical chuck 4 is as follows Figures 3a to 3bAs shown, the cable 7 passes through the inner cavity of the conical chuck 4. The outer wall of the front end of the conical chuck 4 has a wedge-shaped surface 41, causing the outer diameter of the front end of the conical chuck 4 to gradually increase from front to back. The taper of the wedge-shaped surface 41 is consistent with the taper of the conical hole 34, both being 1:10. After the conical chuck 4 is inserted into the rear end of the wire clamp cap 3, the wedge-shaped surface 41 engages with the corresponding conical hole 34 inside the wire clamp cap 3. The rear end of the conical chuck 4 is a quarter-sphere 42, causing the outer diameter of the rear end of the conical chuck 4 to gradually decrease from front to back. The sphere 42 engages with the conical surface 52 inside the locking nut 5, causing the sphere 42 to stop backward on the conical surface 52. The inner surface of the conical chuck 4 is provided with serrated grooves I43 and II47 at its front and rear ends, respectively. In this embodiment, each of the serrated grooves I43 and II47 at the front and rear ends has three grooves. This increases the friction between the inner surface and the cable 7 during the contraction of the conical chuck 4, making the cable 7 clamped more firmly, especially increasing the axial friction to prevent the cable 7 from coming off and the wire from breaking. Several oblique wedge grooves I44 and II45 are formed on the wall of the conical chuck 4 to increase the deformation and clamping force during the deformation process of the conical chuck 4. Oblique wedge grooves I44 are grooved with the front end face of the conical chuck 4 as the reference, and several oblique wedge grooves I44 are distributed circumferentially on the wall of the front end of the conical chuck 4. Oblique wedge grooves II45 are grooved with the rear end face of the conical chuck 4 as the reference, and several oblique wedge grooves II45 are distributed circumferentially on the wall of the rear end of the conical chuck 4. Both the oblique wedge I 44 and oblique wedge II 45 do not coincide with the generatrix of the conical chuck 4, causing the oblique wedge I 44 and oblique wedge II 45 to be set at an angle, which can improve the toughness of the conical chuck 4 to a certain extent. A slot 46 is opened on the inner wall of the conical chuck 4 near the rear end to accommodate the threaded sleeve 6.

[0052] The structure of the locking nut 5 is as follows Figure 4As shown, the locking nut 5 covers the rear end of the wire clamp 3. The inner wall of the front end of the locking nut 5 is provided with an internal thread 51, which is used to connect with the external thread 35. The locking nut 5 is positioned at the rear end of the wire clamp 3. The inner wall of the rear end of the locking nut 5 is provided with a conical surface 52, so that the inner diameter of the locking nut 5 gradually decreases from front to back. After the locking nut 5 is installed on the wire clamp 3, the conical surface 52 abuts against the spherical surface 42. During the tightening process of the locking nut 5, the conical surface 52 will squeeze the spherical surface 42 of the conical chuck 4, which can push the conical chuck 4 further into the wire clamp 3, so that the front end of the conical chuck 4 retracts and can clamp the cable 7; at the same time, the rear end of the conical chuck 4 retracts, clamping the cable 7 and clamping the wire guide sleeve 6, and clamping and locking the wire guide sleeve 6 and the cable 7. To prevent the tapered chuck 4 from dislodging from the tail of the locking nut 5 during the compression process, a stop and limiting structure 53 is provided on the inner wall of the tail of the locking nut 5. The stop and limiting structure 53 is located on the rear side of the tapered surface 52, and the inner diameter of the stop and limiting structure 53 is smaller than the minimum inner diameter of the tapered surface 52. The stop and limiting structure 53 stops the rear end face of the tapered chuck 4 to prevent it from dislodging, while also pushing the tapered chuck 4 into the wire clamp cap 3.

[0053] The structure of threaded sleeve 6 is as follows Figure 5 As shown, the part is made of plastic, and the cable 7 is threaded through the cable threading sleeve 6. The outer wall of the front end of the cable threading sleeve 6 has a boss 61. During assembly, the boss 61 is embedded in the groove 46 of the conical clamp 4. When the conical clamp 4 retracts, it can lock the boss 61 into the groove 46. Several U-shaped serrations 62 are axially distributed on the outer wall of the middle part of the cable threading sleeve 6. The U-shaped serrations 62 extend circumferentially on the outer wall of the cable threading sleeve 6, and their cross-section is U-shaped. The groove formed between two U-shaped serrations 62 also has a U-shaped cross-section. This U-shaped serration structure has good load-bearing and stress dispersion functions, and can achieve bending resistance, preventing cable damage. A bundling groove 63 is opened on the outer wall of the rear end of the cable threading sleeve 6. Steel cable ties are attached to the bundling groove 63 to further secure the cable 7 and the cable threading sleeve 6.

[0054] In other embodiments, improvements are made based on the above embodiments. The inner cavity at the front end of the wire clip cap 3 can be enlarged, so that the diameter of the inner cavity gradually increases from back to front, such as... Figure 2 As shown, after removing the outer sheath of the cable 7, the wire passes through the inner cavity and is connected to the contact of the connector. By enlarging the inner cavity, interference between the wire and the inner wall of the front end of the wire clamp cap 3 is avoided, which would cause the wire to bend and be damaged.

[0055] In other embodiments, improvements are made based on the above embodiments. The conical chuck 4 can have its serrated grooves I43 and II47 removed. Pressure is applied by tightening the nut 5 to increase the friction between the inner wall of the conical chuck 4 and the cable 7. Figure 1 As shown.

[0056] In other embodiments, improvements are made based on the above embodiments. The tapered chuck 4 can have the oblique wedge I44 and oblique wedge II45 removed, and the tapered chuck 4 can be made of a material with greater elasticity, such as... Figure 1 As shown. Alternatively, only wedge groove I44 or wedge groove II 45 can be provided.

[0057] In other embodiments, improvements are made based on the above embodiments, and the outer wall of the rear end of the threading sleeve 6 may not have a binding groove 63, such as... Figure 1 As shown, the steel cable tie is directly tied to the cable threading sleeve 6, or the steel cable tie is not used, and the cable threading sleeve 6 is locked and fixed by the locking nut 5.

[0058] In other embodiments, improvements are made based on the above embodiments, and the spherical surface 42 of the outer wall of the rear end of the conical chuck 4 can be replaced with an inclined surface that matches the conical surface 52.

[0059] In other embodiments, improvements are made based on the above embodiments. The inner wall of the tapered chuck 4 may not have a slot 46. Correspondingly, the outer wall of the threading sleeve 6 may not have a boss 61. The threading sleeve 6 is locked by the clamping force of the tapered connector 4.

[0060] An embodiment of the method of using a tapered clamp connector tail accessory of the present invention includes the following steps:

[0061] Step 1: Insert the snap ring 2 into the positioning groove 32 of the wire clip cap 3.

[0062] Step 2: Then, insert both (the wire clip 3 and the snap ring 2) into the connecting nut 1 as a whole to form an assembly. First, insert the middle part of the snap ring 2 into the groove of the connecting nut 1. Then, use a special snap ring tool or a milling cutter and tweezers to insert the open end of the snap ring 2 into the groove of the connecting nut 1 respectively. Finally, use a press to press the snap ring 2 into place.

[0063] Step 3: Place the threading sleeve 6, locking nut 5, tapered clamp 4, and the components from Step 2 (including the wire clamp 3, snap ring 2, and connecting nut 1) onto the cable 7 in sequence.

[0064] Step 4: Strip the outer sheath from the end of cable 7, terminate the wires in cable 7 with the contacts in the connector according to the corresponding wiring relationship, and loosen and turn the shielding layer of cable 7 outward. Note that you should wrap tape around the wires at the outward part of the shielding layer for protection to avoid the shielding wires puncturing the wires.

[0065] Step 5: Use a pliers wrench or soft-nose pliers to screw the assembled components from Step 2 onto the tail of the connector. Apply adhesive to the threads before screwing to prevent loosening.

[0066] Step 6: Forcefully install the boss 61 of the threading sleeve 6 into the slot 46 of the tapered chuck 4.

[0067] Step 7: Flip the shielding wire 360° outward from Step 4 onto the wedge-shaped surface 41 of the conical clamp 4, and then push the conical clamp 4 axially into the conical hole 34 of the cable clamp cap 3 to clamp the cable shielding layer through the conical surface engagement.

[0068] Step 8: Screw the locking nut 5 axially into the external thread 35 of the wire clamp cap 3. At this time, the conical surface 52 of the locking nut 5 presses against the spherical surface 42 of the conical chuck 4. The opening at the rear end of the conical chuck 4 gradually narrows and clamps the wire threading sleeve 6. At the same time, the stop and limit structure 53 of the locking nut 5 will stop the conical chuck 4, causing it to move axially into the inside of the wire clamp cap 3. Under the pressure of the wedge surface 41, the opening at the front end of the conical chuck 4 also gradually narrows and clamps the cable 7. At the same time, it can also clamp the shielding layer by cooperating with the conical hole 34.

[0069] Step 9: Secure the cable tie in the binding groove 63 of the cable threading sleeve 6 to further tighten the cable threading sleeve 6 and the cable 7.

[0070] The advantages of this invention are summarized as follows:

[0071] (1) The tail accessory uses the contraction of the conical clamp 4 to clamp the cable 7 and clamp the shielding layer of the conductor at the same time to achieve 360° shielding function. The structure is more compact and saves the installation space of the tail accessory.

[0072] (2) In view of the problem that the cable 7 at the tail outlet of the tail accessory is easily bent or worn, an anti-bending cable sleeve 6 is added to the tail of the tail accessory, which can effectively reduce the stress on the cable 7 and reduce the risk of the cable 7 bending or even breaking.

[0073] (3) The tapered clamp 4 has a certain range of shrinkage, so the tapered clamp 4 can provide a stable clamping force for cables 7 with different outer diameters; at the same time, for cables 7 that exceed the clamping range, it is only necessary to design and change the inner diameter of the tapered clamp 4 to adapt to cables 7 with different diameters.

[0074] An embodiment of the connector of the present invention is provided at the tail end of the connector as described in the above embodiment.

[0075] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tapered clamp connector tail accessory, comprising a wire clamp cap (3) and a connecting nut (1) disposed at the front end of the wire clamp cap (3) for connecting to the tail of the connector, characterized in that: The inner cavity of the rear end of the wire clamp cap (3) is a tapered hole (34), the inner diameter of which gradually increases from front to back. A tapered chuck (4) is inserted into the tapered hole (34). The outer wall of the front end of the tapered chuck (4) is a wedge-shaped surface (41) that matches the tapered hole (34). A cable (7) is threaded through the tapered chuck (4). The wires in the cable (7) pass through the wire clamp cap (3) and the connecting nut (1) and can connect with the contacts in the connector. The shield of the cable (7) The shielding layer is turned outward and clamped between the wedge-shaped surface (41) and the conical hole (34); the rear end of the wire clamp cap (3) is threaded to the locking nut (5), the rear end of the conical chuck (4) extends out of the wire clamp cap (3), when the locking nut (5) is screwed in, its inner wall can press forward and inward to the rear end of the conical chuck (4), the conical chuck (4) is nested inside the wire threading sleeve (6), the wire threading sleeve (6) is threaded with a cable (7), and the wire threading sleeve (6) extends out of the conical chuck (4) backward.

2. The conical clamp connector tail accessory according to claim 1, characterized in that: The outer wall of the wire clamp cap (3) is provided with a positioning groove (32), and the inner wall of the connecting nut (1) is provided with a corresponding groove. The positioning groove (32) and the groove of the connecting nut (1) are nested together with a retaining spring (2).

3. The conical clamp connector tail accessory according to claim 1, characterized in that: The front end face of the wire clamp cap (3) is provided with anti-rotation end teeth (31) for engaging with the end teeth of the connector tail.

4. The conical clamp connector tail accessory according to claim 1, characterized in that: The inner wall of the wire clamp cap (3) is provided with a limiting step (33) for the forward-stopping conical clamp (4).

5. The tail accessory of the tapered clamp connector according to claim 1, characterized in that: The inner wall of the locking nut (5) is provided with a stop and limit structure (53) for the rearward stop cone chuck (4) so ​​that the cone chuck (4) is pushed forward when the locking nut (5) is screwed on.

6. The tail accessory of the tapered clamp connector according to claim 1, characterized in that: The outer wall of the rear end of the tapered chuck (4) is provided with a quarter spherical surface (42) so that the outer diameter of the rear end of the tapered chuck (4) gradually decreases from front to back, and the inner wall of the locking nut (5) is provided with a tapered surface (52) for pressing the spherical surface (42).

7. The tail accessory of the tapered clamp connector according to claim 1, characterized in that: The inner wall of the conical chuck (4) is provided with a serrated groove to increase the axial friction between the conical chuck (4) and the cable (7).

8. The tail accessory of the tapered clamp connector according to claim 1, characterized in that: The wall of the conical chuck (4) has several oblique grooves I (44) and / or oblique grooves II (45) distributed circumferentially. Oblique groove I (44) is slotted with the front end face of the conical chuck (4) as the reference, and oblique groove II (45) is slotted with the rear end face of the conical chuck (4) as the reference. Oblique grooves I (44) and oblique groove II (45) do not coincide with the generatrix of the conical chuck (4) so ​​that oblique grooves I (44) and oblique groove II (45) are set at an angle.

9. The tail accessory of a tapered clamp connector according to claim 1, characterized in that: The inner wall of the tapered chuck (4) is provided with a slot (46), and the outer wall of the threading sleeve (6) is provided with a boss (61) nested in the slot (46).

10. The tail accessory of a tapered clamp connector according to claim 1, characterized in that: The outer wall of the threading sleeve (6) has a plurality of U-shaped serrations (62) axially distributed, and the U-shaped serrations (62) extend circumferentially on the outer wall of the threading sleeve (6).

11. The tail accessory of a tapered clamp connector according to claim 1, characterized in that: The outer wall of the rear end of the cable threading sleeve (6) is provided with a binding groove (63) for nesting steel cable ties to lock the cable threading sleeve (6) and the cable (7).

12. A method of using a tail accessory of a tapered clamp connector, characterized in that: Includes the following steps: Connect the wire clamp cap (3) and the connecting nut (1) to form an assembly; The threading sleeve (6), locking nut (5), tapered clamp (4) and the aforementioned components are sequentially placed onto the cable (7); Strip the outer sheath from the end of the cable (7), terminate the wires in the cable (7) with the contacts in the connector, and turn the shielding wire of the cable (7) outward; The component is screwed onto the tail of the connector; The protrusion (61) of the threading sleeve (6) is forcibly installed into the slot (46) of the tapered chuck (4); Turn the shielding wire outward onto the wedge-shaped surface (41) of the conical clamp (4), and then push the conical clamp (4) axially into the conical hole (34) of the wire clamp cap (3) to clamp the shielding layer of the cable (7) through the conical surface. The locking nut (5) is screwed into the external thread (35) of the wire clamp (3) along the axial direction. The conical surface (52) of the locking nut (5) presses against the spherical surface (42) of the conical chuck (4). The opening at the rear end of the conical chuck (4) gradually narrows to clamp the wire sleeve (6). The stop and limit structure (53) of the locking nut (5) stops the conical chuck (4) and causes it to move axially into the inside of the wire clamp (3). The wedge surface (41) presses against the opening at the front end of the conical chuck (4) to gradually narrow to clamp the cable (7) and cooperates with the conical hole (34) to clamp the shielding layer. Steel cable ties are attached to the binding groove (63) of the cable threading sleeve (6) to further tighten the cable threading sleeve (6) and the cable (7).

13. A connector having a tail accessory at its tail end, characterized in that: The tail accessory is a tapered clamp connector tail accessory as described in any one of claims 1-11.

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