A coaxial cable shield terminal and a coaxial cable connector

Abstract

The application provides a coaxial cable shielding terminal and a coaxial cable connector, and relates to the technical field of communication equipment connection, which comprises a mounting part connected with a connector, a containing part fixed by screwing at the right end of the mounting part and used for fixing a coaxial cable, the containing part comprising a tail shell used for fixing the coaxial cable and a head shell used for thread connection with the mounting part, an inner compression ring arranged in the tail shell and capable of linear displacement relative to the axis of the tail shell, the mounting part comprising a wire compression ring used for fixing the internal wire of the coaxial cable, a compression ring extending in the axial direction of the left end of the wire compression ring, and a limiting ring formed with a tapered peripheral wall and extending inward in the radial direction near one end of the mounting part, so that the terminal and the shielding layer of the cable are fixed around and cannot cause damage to the shielding layer, and meanwhile, the terminal can be firmly fixed outside the cable to ensure the anti-interference ability of the shielding layer at the connection part and the firmness of the connection.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication equipment connection, in particular to a coaxial cable shielding terminal and a coaxial cable connector. BACKGROUND

[0002] The coaxial cable is based on the ordinary cable, and a shielding layer made of a metal braid layer or a metal armor layer is arranged outside the cable, which can effectively isolate external electromagnetic interference and avoid the influence of the current inside the cable on the external environment. The coaxial cable has excellent electromagnetic shielding effect, can resist external interference, ensures stable model transmission, and is suitable for many fields. When the coaxial cable is connected with equipment, it needs to be connected through a terminal. At this time, the terminal needs to be connected with the shielding layer of the cable to form a coaxial cable shielding terminal with shielding function.

[0003] When the coaxial cable shielding terminal is connected with the cable, it needs to be surrounded by 360 degrees and connected with the shielding layer of the cable to ensure the anti-interference ability of the shielding layer. The traditional coaxial cable shielding terminal will peel off part of the shielding layer of the cable, and a metal ring is used to clamp it inside the terminal to realize the surrounding of the terminal and the shielding layer. However, when the clamping part in the terminal is connected with the shielding layer, the shielding layer is squeezed due to the clamping part, which causes the shielding layer at the connection to be excessively folded and broken, affecting the shielding effect. Some terminals rely entirely on the clamping of the terminal and the shielding layer to realize the fixation of the terminal and the cable. Such a terminal not only has poor shielding effect, but also is easy to separate and fall off from the shielding layer, so that the terminal cannot fix the cable on the connector, affecting the transmission of signals. Some rely on the deformation of the metal shell at the connection between the terminal and the shielding layer to connect. Since the metal shell deforms, it will squeeze the shielding layer, causing the shielding layer to be damaged and affecting the anti-interference of the shielding layer. SUMMARY

[0004] The purpose of the present application is to provide a coaxial cable shielding terminal and a coaxial cable connector, which can fix the terminal and the shielding layer of the cable without clamping and bending the shielding layer and the terminal, without causing damage to the shielding layer, and can firmly fix the terminal outside the cable to ensure the anti-interference ability of the shielding layer at the connection and the firmness of the connection.

[0005] The first aspect of the present application relates to a coaxial cable shielding terminal, comprising,

[0006] a mounting portion for connecting a connector;

[0007] a receiving portion fixed with the mounting portion by screwing, for fixing a coaxial cable, the receiving portion comprising a tail shell for fixing the coaxial cable and a head shell for threadedly connecting with the mounting portion;

[0008] An inner pressure ring arranged in the tail shell and capable of linear displacement relative to the axis of the tail shell;

[0009] The mounting portion comprises a wire pressing ring for fixing the inner wire of the coaxial cable, and a pressing ring extending in the axial direction of the wire pressing ring;

[0010] The tail shell is provided with a limiting ring formed by a tapered peripheral wall extending inward in the radial direction near one end of the mounting portion, and the middle section of the tail seat of the tail shell is provided with a convex rib extending inward in the radial direction and extending to both axial ends in a direction perpendicular to the convex rib to form a connecting ring;

[0011] The inner pressure ring comprises a clamping barrel having a tapered peripheral wall and an anti-disengagement barrel;

[0012] When the coaxial cable is mounted with the accommodating portion and the mounting portion, the connecting ring pushes the clamping barrel to displace, the limiting ring pushes the clamping barrel out of one end near the mounting portion, and the clamping barrel is offset towards the pressing ring at one end of the limiting ring, so that the clamping barrel and the pressing ring complete the fixation of the cable, and the anti-disengagement barrel is used to reinforce the connection of the coaxial cable with the accommodating portion.

[0013] Compared with the prior art, the coaxial cable shielding terminal of the present application extends the pressing ring into the space between the cable shielding layer and the PE layer for clamping and pressing, and completes the 360-degree ring connection between the terminal shielding part and the cable shielding layer when the mounting portion and the accommodating portion are connected. The mounting portion pushes and presses the clamping barrel, so that the clamping barrel and the pressing ring clamp the cable, without the need to fold and press the cable shielding layer, thereby avoiding damage and destruction to the cable shielding layer. When the coaxial cable is separated from the terminal, the anti-disengagement barrel is used to press the coaxial cable, thereby avoiding separation of the coaxial cable from the terminal under external force.

[0014] In some embodiments, the wire pressing ring is provided with a pressing ring, an outer clamping ring and a mounting ring in sequence in the radial direction perpendicular to the extension direction of the wire pressing ring, the outer clamping ring has a tapered peripheral wall, and the inner side of the mounting ring is provided with a thread for connection with the head shell.

[0015] In some embodiments, the head seat of the head shell is provided with a matching ring extending along the side near the mounting ring, the outer side of the matching ring is configured with a thread corresponding to the thread on the inner side of the mounting ring for threaded connection with the mounting ring.

[0016] In some embodiments, the head seat is provided with an annular convex rib extending inward in the radial direction, and the convex rib is provided with an inner clamping ring extending in the axial direction at one end near the outer clamping ring, the tapered peripheral wall of the inner clamping ring corresponds to the tapered peripheral wall of the outer clamping ring, and the generatrix of the cross section is parallel.

[0017] The coaxial cable shielding terminal of the present application, the inner and outer clamping rings with tapered cross section and parallel busbars but not in contact are reserved spaces for the extended shielding layer, the extended shielding layer is stored in the reserved space and will not be broken due to extrusion.

[0018] In some embodiments, the tail shell is threadedly connected to the head seat away from the mounting portion through the tail seat, both ends of the connecting ring of the tail shell are provided with first flange bodies, the first flange bodies are configured on both sides of the connecting ring, and the tail shell away from the head seat extends inward in the radial direction to form a anti-disengagement ring with a tapered peripheral wall at an end thereof.

[0019] In some embodiments, a groove for accommodating the connecting ring is formed at an end of the clamping barrel of the inner pressure ring close to the connecting ring, the groove divides the end of the clamping barrel close to the connecting ring into an outer ring and an inner ring, the outer ring is an outer connecting ring, the inner ring is an inner connecting ring, the inner sides of the outer connecting ring and the inner connecting ring are respectively configured with a second flange body and a third flange body, and the connecting ring is clamped in the outer connecting ring and the inner connecting ring through the second flange body and the third flange body.

[0020] In some embodiments, a groove for accommodating the connecting ring is formed at an end of the anti-disengagement barrel of the inner pressure ring close to the connecting ring, the groove divides the end of the anti-disengagement barrel close to the connecting ring into an outer ring and an inner ring, the outer ring is an outer connecting ring, the inner ring is an inner connecting ring, the inner sides of the outer connecting ring and the inner connecting ring are respectively configured with a second flange body and a third flange body, and the connecting ring is clamped in the outer connecting ring and the inner connecting ring through the second flange body and the third flange body.

[0021] The coaxial cable shielding terminal of the present application, when the terminal is mounted with the coaxial cable, the clamping barrel is displaced, the cable outer skin and the shielding layer are pressed tightly by cooperating with the pressing ring, reinforcement is realized, at the same time, the anti-disengagement barrel is pressed tightly by the anti-disengagement ring extruding the coaxial cable outer skin, the coaxial cable is prevented from being separated from the terminal, and the stability of the connection between the coaxial cable and the terminal is greatly improved.

[0022] The coaxial cable shielding terminal of the present application, when mounted, the clamping barrel is directly pressed into the tail seat, the groove at the tail end of the clamping barrel is clamped with the connecting ring, the fixation of the clamping barrel is realized, the clamping barrel and the tail seat become an integral part, the number of parts is reduced, the operation process is avoided to be complicated due to too many parts when the terminal is connected with the cable, and too many parts are easy to be lost during installation, which affects the construction efficiency.

[0023] In some embodiments, the inner side surface of the limiting ring is in contact with the surface of the clamping barrel, and the clamping barrel can slide along the inner side surface of the limiting ring.

[0024] In some embodiments, the inner side of the anti-escape ring is fitted with the surface of the anti-escape barrel, and the anti-escape barrel can slide along the inner side of the anti-escape ring

[0025] The coaxial cable shielding terminal of the present application can push the clamping barrel by the pushing force of the connecting ring, and the inner side of the limiting ring can push the clamping barrel in the radial direction, so that the clamping barrel is pushed to move while the tail seat is pushed, and the radial inward pushing force is applied to the clamping barrel, so that the clamping barrel can extrude the cable, the fixation between the clamping barrel and the cable is completed, and the friction between the clamping barrel and the cable is increased after the clamping barrel extrudes the cable, so that the terminal and the cable will not be separated due to the external force applied to the cable during use, the connection is more firm, and the coaxial cable and its shielding layer will not be damaged.

[0026] In some embodiments, the mounting portion further comprises a protection ring, a positioning ring and a nut arranged on the back side of the compression ring, the protection ring is a hollow tube body for passing the cable core, the positioning ring is used for positioning when connected with the connector, and the nut is rotatably arranged on the outer side of the compression ring and used for connecting with the connector.

[0027] Another aspect of the present disclosure relates to a coaxial cable connector comprising the above-mentioned coaxial cable shielding terminal.

[0028] Based on the above technical solution, the present application has at least the following beneficial effects:

[0029] The coaxial cable shielding terminal of the present application can extrude the cable by stretching the compression ring into the shielding layer of the coaxial cable, and the friction force generated between the cable and the cable skin during movement can be converted into the pressure of the limiting ring on the clamping barrel, so that the clamping barrel can extrude the cable, and the compression ring can complete the fastening connection of the cable shielding layer, so that the anti-interference ability of the coaxial cable shielding layer is not affected during connection. When the cable is subjected to a force away from the terminal, the cable will also be displaced due to the friction force, so that the anti-escape ring can apply pressure to the anti-escape barrel through the inclined surface in contact with the anti-escape barrel, so that the anti-escape barrel is tightly pressed against the skin of the coaxial cable, preventing the coaxial cable from being separated from the terminal. The space formed between the outer clamping ring, the inner clamping ring and the cooperating ring can store the reserved cable shielding layer, so that the cable shielding layer will not be extruded, and the fixation of the cable and the terminal will not be affected, thereby greatly improving the stability of the connection between the terminal and the cable and the anti-interference ability of the connection. BRIEF DESCRIPTION OF DRAWINGS

[0030] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and serve to explain the present application. In the drawings:

[0031] Figure 1 This is a schematic diagram of the overall appearance structure of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the present invention from an exploded perspective;

[0033] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0034] Figure 4 This is a schematic cross-sectional view of the coaxial cable shielding terminal of the present invention after being connected to the cable;

[0035] Figure 5 This is a schematic cross-sectional view of the anti-slip ring squeezing the anti-slip barrel when connecting a cable according to the present invention;

[0036] Figure 6 This is a schematic cross-sectional view of the clamp barrel being squeezed by the limiting ring when connecting a cable according to the present invention;

[0037] Figure 7 For the present invention Figure 6 A schematic cross-sectional structure diagram of an enlarged perspective at point A;

[0038] Figure 8 It is a schematic diagram of the cross-sectional structure of the mounting portion of the present invention.

[0039] The reference numerals in the accompanying drawings are described as follows:

[0040] 10. Mounting part; 11. Wire pressing ring; 12. Protective ring; 13. Positioning ring; 14. Pressing ring; 15. External retaining ring; 16. Mounting ring; 17. Nut;

[0041] 20. Accommodation portion;

[0042] 30. Tail housing; 31. Tailstock; 32. Anti-slip ring; 33. Limiting ring; 34. Connecting ring; 35. First flange body;

[0043] 40. First shell; 41. First seat; 42. Matching ring; 43. Inner snap ring;

[0044] 50. Inner pressure ring; 51. Clamp barrel; 52. Outer connecting ring; 53. Inner connecting ring; 54. Second flange; 55. Third flange; 56. Anti-drop barrel;

[0045] 61. Coaxial cable; 62. Protective layer; 63. Shielding layer; 64. Iron core.

[0046] It should be understood that the size of each part shown in the drawings is not drawn according to the actual proportional relationship.In addition, the same or similar reference numerals represent the same or similar components. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way limiting on the application or its applications or uses. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of the present application.

[0048] Unless specifically stated otherwise, the relative arrangements of the components and steps, numerical expressions, and values shown in the embodiments presented herein are not meant to limit the scope of the present application. It is to be understood that the dimensions of the various parts shown in the drawings are not necessarily to scale. Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the description of the present application. In all examples shown and discussed herein, any specific value should be interpreted as merely illustrative and not as a limitation. Thus, other examples of the exemplary embodiments can have different values. It should be noted that like reference numerals and letters refer to like items throughout the several views of the drawings, and thus, once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

[0049] In the related art, the tail of the terminal is first sleeved outside the cable, a conical metal ring and a corresponding open horn ring are used, the shielding layer of the cable is first peeled off, the shielding layer is folded back to the periphery of the conical metal ring, and then the horn-shaped metal ring is sleeved outside the folded shielding layer, so that the conical metal ring and the horn-shaped metal ring are sleeved, the connection of the shielding layer is completed, and then the head end cap is connected with the tail end, the terminal and the cable are fixed together, and the tail of the terminal is provided with a reinforcing part for fixing the terminal and the cable.

[0050] The inventor found in the research process that the shielding layer is folded back, the conical metal ring and the horn-shaped metal ring are used to extrude and fix the shielding layer, and in long-term extrusion, the ports of the conical metal ring and the horn-shaped metal ring will extrude the metal shielding layer excessively, causing the metal shielding layer to break, and a fracture is generated at the connection between the terminal and the shielding layer, affecting the anti-interference ability of the shielding layer. In addition, due to the long-term effect of external force, the cable will be affected by the force away from the terminal, which will further pull the metal shielding layer and aggravate the fracture of the shielding layer at the connection, affecting the anti-interference ability of the connection.

[0051] Based on the above findings, the present application provides a shielding terminal of a coaxial cable and a coaxial cable connector using the shielding terminal.

[0052] Reference will now be made to the drawings Figures 1 to 8 A coaxial cable shielding terminal according to some embodiments of the present application is described in detail below. The coaxial cable shielding terminal according to some embodiments of the present application is used to connect the mounting portion 10 of the connector;

[0053] The receiving portion 20 is fixed to the mounting portion 10 by screwing and is used to fix the coaxial cable 61. The receiving portion 20 includes a tail housing 30 used to fix the coaxial cable 61 and a head housing 40 used to be screwed to the mounting portion 10;

[0054] The inner pressing ring 50 is arranged in the tail housing 30 and can be linearly displaced relative to the axis of the tail housing 30;

[0055] In some embodiments, the mounting portion 10 includes a wire pressing ring 11 used to fix the inner wire of the coaxial cable 61, and a pressing ring 14 extending in the axial direction of the wire pressing ring 11;

[0056] In some embodiments, the tail housing 30 is formed with a limiting ring 33 having a tapered peripheral wall extending inward in the radial direction near one end of the mounting portion 10. The tail seat 31 of the tail housing 30 is formed with a convex rib extending inward in the radial direction in the middle section, and is formed with a connecting ring 34 extending in the axial direction perpendicular to the convex rib towards both ends.

[0057] In some embodiments, the inner pressing ring 50 includes a clamping barrel 51 having a tapered peripheral wall and an anti-displacement barrel 56;

[0058] In some embodiments, when the coaxial cable 61 is installed with the receiving portion 20 and the mounting portion 10, the connecting ring 34 pushes the clamping barrel 51 to displace, and the limiting ring 33 pushes the clamping barrel 51 away from one end of the mounting portion 10, so that the clamping barrel 51 is offset towards the pressing ring 14 at one end of the limiting ring 33, thereby completing the fixation of the cable by the clamping barrel 51 and the pressing ring 14. The anti-displacement barrel 56 is used to reinforce the connection between the coaxial cable 61 and the receiving portion 20.

[0059] In the application, the compression ring 14 extends between the cable shielding layer 63 and the internal protection layer 62 (such as PE, armored layer or other internal protection layer), and completes the 360-degree ring connection of the compression ring 14 and the cable shielding layer 63. When the mounting part 10 is connected with the accommodating part 20, the connecting ring 34 of the accommodating part 20 pushes the clamp barrel 51 to move horizontally, the inner side of the limiting ring 33 is a slope with a gradually reduced radius towards one end of the mounting part 10. At this time, the clamp barrel 51 moves close to the inner side slope of the limiting ring 33 under the action of the connecting ring 34, and continuously extrudes the cable in the radial direction of the clamp barrel 51. Under the extrusion force of the clamp barrel 51 on the coaxial cable 61, the clamp barrel 51 and the compression ring 14 complete the extrusion of the cable sheath and the cable shielding layer 63 therebetween, so that the compression ring 14 and the cable shielding layer 63 are tightly attached around 360 degrees, and the clamp barrel 51 and the coaxial cable 61 are tightly attached to complete the connection of the accommodating part 20 and the coaxial cable 61, and the accommodating part 20 and the mounting part 10 are tightened, and the mounting part 10 limits the accommodating part 20,

[0060] In the application, during installation, the coaxial cable 61 is first inserted into the accommodating part 20, and then the position of the accommodating part 20 is adjusted so that the cable breakage is close to the accommodating part 20. At this time, the cable and the accommodating part 20 move in opposite directions, and the friction force between the coaxial cable 61 and the anti-extraction barrel 56 drives the anti-extraction barrel 56, and the direction of the friction force is opposite to the moving direction of the anti-extraction barrel 56. At this time, the anti-extraction barrel 56 moves along the tapered peripheral wall of the anti-extraction ring 32, and the anti-extraction ring 32 extrudes the anti-extraction barrel 56, so that the anti-extraction barrel 56 extrudes the sheath of the coaxial cable 61. The greater the displacement, the stronger the extrusion force, and the connection between the accommodating part 20 and the coaxial cable 61 is more stable.

[0061] Reference Figure 4 and Figure 8 In some embodiments, the wire compression ring 11 is provided with the compression ring 14, the outer clamping ring 15 and the mounting ring 16 in sequence along the radial direction perpendicular to the extension direction of the wire compression ring 11. The outer clamping ring 15 has a tapered peripheral wall, and the inner side of the mounting ring 16 is provided with threads for connecting with the first shell 40. The compression ring 14 can separate the cable shielding layer 63 and the protection layer 62 adjacent to the inner side of the shielding layer 63, and complete the 360-degree ring connection of the shielding layer 63 without damaging the shielding layer 63 by means of the extrusion force of the coaxial cable 61 sheath and in cooperation with the installed clamp barrel 51.

[0062] In some embodiments, the first seat 41 of the first shell 40 extends to form a matching ring 42 along the side close to the mounting ring 16, and the outer side of the matching ring 42 is configured with threads corresponding to the inner side threads of the mounting ring 16 for threaded connection with the mounting ring 16.

[0063] Reference Figure 3 and Figure 4In some embodiments, the first seat 41 extends inwardly in the radial direction to form a ring-shaped convex rib, and the convex rib extends in the axial direction to form an inner clasp 43 near one end of the outer clasp 15. The tapered peripheral wall of the inner clasp 43 corresponds to the tapered peripheral wall of the outer clasp 15, and the generatrix of the cross section is parallel. After installation, the tapered peripheral wall of the outer clasp 15 corresponds to the tapered peripheral wall of the inner clasp 43, and the generatrix of the cross section is parallel, but the two do not contact, forming a space between the inner clasp 43 and the outer clasp 15 for accommodating the shielding layer 63. Since there is no contact, no extrusion force is exerted on the shielding layer 63, and the shielding layer 63 will not be broken after being folded and extruded, thereby affecting the shielding effect.

[0064] Reference Figure 3 and Figure 7 In some embodiments, the tail shell 30 is threadedly connected to the first seat 41 away from the mounting portion 10 through the tail seat 31. The two ends of the connecting ring 34 of the tail shell 30 are provided with first flange bodies 35, which are constructed on both sides of the connecting ring 34. The tail shell 30 extends inwardly in the radial direction to form a tapered peripheral wall of the anti-disengagement ring 32 at one end away from the first seat 41. The inner diameter of the anti-disengagement ring 32 gradually decreases in the axial direction near one end of the connecting ring 34.

[0065] Reference Figure 7 In some embodiments, the clamping barrel 51 of the inner pressure ring 50 is provided with a groove near one end of the connecting ring 34 for accommodating the connecting ring 34. The groove divides the clamping barrel 51 into an outer connecting ring 52 and an inner connecting ring 53 near one end of the connecting ring 34. The inner sides of the outer connecting ring 52 and the inner connecting ring 53 are respectively provided with second flange bodies 54 and third flange bodies 55. The connecting ring 34 is clamped in the outer connecting ring 52 and the inner connecting ring 53 through the second flange bodies 54 and the third flange bodies 55. The clamping barrel 51 can move relative to the connecting ring 34. Through the cooperation of the first flange body 35, the second flange body 54 of the outer connecting ring 52, and the third flange body 55 of the inner connecting ring 53, when the clamping barrel 51 is connected to the connecting ring 34, the first flange body 35 is extruded after the second flange body 54 and the third flange body 55, and extends between the outer connecting ring 52 and the inner connecting ring 53. When the clamping barrel 51 and the connecting ring 34 move in opposite directions, the first flange body 35 and the second flange body 54 come into contact and limit the second flange body 54, preventing the clamping barrel 51 and the connecting ring 34 from being separated.

[0066] Reference Figure 7In some embodiments, a groove for accommodating the connecting ring 34 is provided at one end of the anti-slip barrel 56 of the inner pressure ring 50 close to the connecting ring 34. The groove divides the anti-slip barrel 56 close to the connecting ring 34 into an outer ring and an inner ring. The outer ring is the outer connecting ring 52, and the inner ring is the inner connecting ring 53. The inner sides of the outer connecting ring 52 and the inner connecting ring 53 are respectively constructed with a second flange body 54 and a third flange body 55. The connecting ring 34 is clamped in the outer connecting ring 52 and the inner connecting ring 53 through the second flange body 54 and the third flange body 55. The anti-slip barrel 56 can move relative to the connecting ring 34. Similarly, the anti-slip barrel 56 can be fixed on the connecting ring 34 through the first flange body 35, the second flange body 54 and the third flange body 55, and the anti-slip barrel 56 is limited to prevent it from detaching.

[0067] refer to Figure 4 、 Figure 5 and Figure 6 In some embodiments, the inner side of the limiting ring 33 fits with the surface of the clamp barrel 51, and the clamp barrel 51 can slide along the inner side of the limiting ring 33. The dotted line a and the dotted line b are the inner reference lines of the terminal. Figure 5 and Figure 6 It is divided into two areas, B and C. Area B is the cable accommodation area, which is used to accommodate and fix the cables. Area C is the terminal area, which is used to indicate the position of the various components of the terminal.

[0068] In some embodiments, the inner side surface of the anti-slip ring 32 fits against the surface of the anti-slip barrel 56 , and the anti-slip barrel 56 can slide along the inner side surface of the anti-slip ring 32 .

[0069] refer to Figure 4 and Figure 6 In this embodiment, the inner side surface of the limiting ring 33 fits the inner side surface of the clamping barrel 51, and the contact surfaces of the two are inclined surfaces relative to the axial direction of the limiting ring 33. The tail stock 31 is sleeved on the outside of the coaxial cable 61. When the tail stock 31 moves in the opposite direction of the cable port, the connecting ring 34 pushes the clamping barrel 51 to move. The inclined surface of the limiting ring 33 applies pressure perpendicular to the contact surface to the moving clamping barrel 51, thereby pressing the clamping barrel 51 against the cable surface. Figure 6 At this time, part of the clamp barrel 51 crosses the dotted lines a and b, and enters the B area from the C area, that is, from the terminal area into the cable accommodating area, so that the clamp barrel 51 can apply pressure to the cable. At the same time, since part of the clamp barrel 51 will overlap with the pressure ring 14 in the radial direction when moving, a force-bearing structure will be formed in which the clamp barrel 51 and the pressure ring 14 jointly squeeze the cable skin and the cable shielding layer 63, so that the clamp barrel 51 completes the fastening of the contact between the pressure ring 14 and the shielding layer 63.

[0070] refer to Figure 4 and Figure 5In this embodiment, similar to the cooperation structure of the clamping barrel 51 and the limiting ring 33, when the tail seat 31 moves towards the cable port direction, under the action of the friction force between the anti-escape barrel 56 and the coaxial cable 61, an opposite friction force to the moving direction of the tail seat 31 is applied to the anti-escape barrel 56, which hinders the displacement of the anti-escape barrel 56, thereby applying a force to the anti-escape barrel 56 on the inclined surface of the anti-escape ring 32 and the anti-escape barrel 56, which is pressed towards the coaxial cable 61, so that the anti-escape barrel 56 is tightly pressed on the outer skin of the coaxial cable 61, for reference Figure 5 At this time, part of the anti-escape barrel 56 crosses the dashed lines a and b, enters the B area from the C area, thereby extruding the coaxial cable 61, increasing the friction force and pressure between the anti-escape barrel 56 and the outer skin of the coaxial cable 61, and preventing the coaxial cable 61 from being separated from the anti-escape barrel 56. In other words, when the tail seat 31 moves towards the cable port direction, the anti-escape ring 32 applies a force to the anti-escape barrel 56, which is pressed towards the coaxial cable 61, so that the tail shell 30 is firmly fixed on the coaxial cable 61, preventing the coaxial cable 61 from being separated from the terminal. At the same time, due to the limited plastic deformation of the inclined surface of the anti-escape barrel 56 and the inclined surface of the anti-escape ring 32, the anti-escape barrel 56 will not be separated from the tail seat 31 in this movement mode.

[0071] In this embodiment, the clamping barrel 51 and the anti-escape barrel 56 are both made of silicone rubber. In this embodiment, the silicone rubber used can produce partial deformation when extruded, but will not adhere to the cable skin due to long-term contact.

[0072] In some embodiments, the mounting portion 10 further comprises a protection ring 12, a positioning ring 13 and a nut 17 arranged on the back side of the compression ring 14. The protection ring 12 is a hollow tube body configured to pass the cable core. The positioning ring 13 is used for positioning when connected with the connector. The nut 17 is rotatably arranged on the outside of the wire compression ring 11 and is used for connecting with the connector. The protection ring 12 is attached to the surface of the iron core 64 inside the coaxial cable 61, preventing the iron core 64 from being bent or broken due to collision when the terminal is connected with the connector. The nut 17 is used to connect the terminal to the connector by only rotating the nut 17 when the terminal is rotated.

[0073] The coaxial cable connector of the embodiment of the present application comprises the coaxial cable shielding terminal of any one of the above.

[0074] The coaxial cable shielding terminal of the embodiment, when installed, first strips the outer skin of the cable to expose the iron core 64 and the cable shielding layer 63, presses the end of the clamp barrel 51 connected with the head shell 40, makes the coaxial cable 61 pass through the tail shell 30 of the accommodating part 20, and does not completely penetrate the tail shell 30, the outer skin incision of the coaxial cable 61 is located in the middle section of the clamp barrel 51, during which the anti-dropping ring 32 does not extrude the anti-dropping barrel 56, the limiting ring 33 does not press the clamp barrel 51, continuously pressing the clamp barrel 51 slowly pushes the coaxial cable 61, so that the cable shielding layer 63 passes through the inside of the inner clamping ring 43 of the head shell 40, then, the cable shielding layer 63 is bent and curved in the direction towards the end of the anti-dropping ring 32, the pressing ring 14 of the mounting part 10 is inserted between the cable shielding layer 63 and the protective layer 62, and the skin layer of the coaxial cable 61 is accommodated in the accommodation space formed between the inner clamping ring 43 and the outer clamping ring 15, the tail shell 30 and the head shell 40 are pulled in opposite directions after being pushed in the direction of the incision of the coaxial cable 61 for a certain distance, the connection of the head seat 41 and the tail seat 31 is completed, during the reverse pulling process, due to the action of friction, the clamp barrel 51 moves in the opposite direction relative to the tail shell 30, so that the limiting ring 33 exerts pressure on the clamp barrel 51, and then the clamp barrel 51 extrudes the cable outer skin, at this time, the mounting part 10 is twisted, the end of the mounting part 10 is connected to the head shell 40, during which the pressing ring 14 is continuously inserted between the cable shielding layer 63 and the protective layer 62, and cooperates with the clamp barrel 51 to clamp the cable shielding layer 63 and the outer skin between the pressing ring 14 and the clamp barrel 51, so that the pressing ring 14 and the cable shielding layer 63 realize 360-degree surrounding contact, that is, the connection of the coaxial cable shielding terminal and the coaxial cable 61 is completed, when the coaxial cable 61 is subjected to the force of being separated from the terminal, due to the friction between the outer skin of the coaxial cable 61 and the anti-dropping barrel 56, the anti-dropping barrel 56 will move in the opposite direction of the tail shell 30, so that the inclined surface of the anti-dropping ring 32 extrudes the anti-dropping barrel 56, and then the anti-dropping barrel 56 extrudes the coaxial cable 61, so that the coaxial cable 61 and the terminal are more firmly connected, avoiding the terminal and the coaxial cable 61 being separated due to external force, affecting the signal transmission effect.

[0075] The coaxial cable shielding terminal of the present application, by extending the pressing ring into the shielding layer of the coaxial cable, uses the inclined surface between the clamp barrel and the limiting ring to make the coaxial cable displace due to the friction force generated by the cable skin when moving, and convert the friction force into the pressure of the limiting ring on the clamp barrel, so that the clamp barrel presses the cable, and cooperates with the pressing ring to complete the fastening connection of the cable shielding layer, avoiding the gap in the shielding layer during connection affecting the anti-interference ability of the coaxial cable shielding layer, when the cable is affected by the force away from the terminal, the same friction force causes the cable to drive the anti-dropping barrel to displace, so that the anti-dropping ring applies pressure to the anti-dropping barrel through the inclined surface in contact with the anti-dropping barrel, so that the anti-dropping barrel is tightly pressed on the skin of the coaxial cable, preventing the coaxial cable from being separated from the terminal, using the gap formed between the outer clasp ring, the inner clasp ring and the cooperating ring to store the reserved cable shielding layer, without extruding the cable shielding layer, ensuring that it will not be broken, and will not affect the fixation of the cable and the terminal, thereby greatly improving the stability of the connection between the terminal and the cable and the anti-interference ability of the connection.

[0076] Based on the above embodiments of the present application, the technical features of one of the embodiments can be beneficially combined with one or more of the other embodiments without explicit negation or conflict.

[0077] Although the present application has been described with reference to the preferred embodiments, various modifications can be made to it without departing from the scope of the present application, and equivalent components can be substituted therefor. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A coaxial cable shielding terminal, comprising: A mounting portion (10) for connecting a connector; an accommodating portion (20) screwed and fixed to the mounting portion (10) and used to be fixed to the coaxial cable, the accommodating portion (20) comprising a tail shell (30) used to be fixed to the coaxial cable and a head shell (40) used to be threadedly connected to the mounting portion (10); An inner pressure ring (50) disposed in the tail housing (30) and capable of linear displacement relative to the axis of the tail housing (30); It is characterized by: The mounting portion (10) comprises a wire pressing ring (11) for fixing the inner conductor of the coaxial cable, and a pressure ring (14) extending in the axial direction of the wire pressing ring (11); The tail housing (30) is located near one end of the mounting portion (10) and extends inwardly in the radial direction to form a limiting ring (33) with a tapered peripheral wall. The middle section of the tail seat (31) of the tail housing (30) extends inwardly in the radial direction to form a rib, and a connecting ring (34) is formed along a direction perpendicular to the rib and extending toward both ends in the axial direction. The inner pressure ring (50) includes a clamping barrel (51) with a tapered peripheral wall and an anti-slip barrel (56); When the coaxial cable is installed with the accommodating portion (20) and the mounting portion (10), the connecting ring (34) pushes the clamp barrel (51) to move, and the limiting ring (33) pushes the clamp barrel (51) toward one end of the mounting portion (10), so that the clamp barrel (51) is offset toward the pressure ring (14) toward one end of the limiting ring (33), thereby completing the fixing of the cable by the clamp barrel (51) and the pressure ring (14), and the anti-slip barrel (56) is used to reinforce the connection between the coaxial cable and the accommodating portion (20).

2. The coaxial cable shielding terminal according to claim 1, characterized in that: The wire pressing ring (11) extends perpendicularly to the wire pressing ring (11) and is provided with a pressing ring (14), an outer snap ring (15) and a mounting ring (16) in sequence along a radial direction. The outer snap ring (15) has a tapered peripheral wall. The inner side of the mounting ring (16) is provided with a thread for connection with the head shell (40).

3. The coaxial cable shielding terminal according to claim 2, characterized in that: A first seat (41) of the first shell (40) extends along a side close to the mounting ring (16) to form a matching ring (42), and an outer side of the matching ring (42) is configured with an external thread corresponding to the inner thread of the mounting ring (16) for threaded connection with the mounting ring (16).

4. The coaxial cable shielding terminal according to claim 3, characterized in that: The first seat (41) extends inwardly in the radial direction to form an annular rib, and the rib extends in the axial direction at one end close to the outer retaining ring (15) to form an inner retaining ring (43), and the conical peripheral wall of the inner retaining ring (43) corresponds to the conical peripheral wall of the outer retaining ring (15), and the generatrix of the cross section is parallel.

5. The coaxial cable shielding terminal according to claim 4, characterized in that: The tail housing (30) is threadedly connected to the end of the head seat (41) away from the mounting portion (10) through the tail seat (31), and both ends of the connecting ring (34) of the tail housing (30) are provided with a first flange body (35), and the first flange body (35) is constructed on both sides of the connecting ring (34). The end of the tail housing (30) away from the head seat (41) extends inwardly in the radial direction to form an anti-slip ring (32) with a tapered peripheral wall, and the inner diameter of the anti-slip ring (32) gradually decreases along the axial direction toward one end of the connecting ring (34).

6. The coaxial cable shielding terminal according to claim 1, characterized in that: The clamp barrel (51) of the inner pressure ring (50) is provided with a groove for accommodating the connecting ring (34) at one end thereof close to the connecting ring (34). The groove divides the clamp barrel (51) at one end thereof close to the connecting ring (34) into an outer ring and an inner ring. The outer ring is an outer connecting ring (52), and the inner ring is an inner connecting ring (53). A second flange body (54) and a third flange body (55) are respectively constructed on the inner sides of the outer connecting ring (52) and the inner connecting ring (53). The connecting ring (34) is clamped in the outer connecting ring (52) and the inner connecting ring (53) via the second flange body (54) and the third flange body (55). The anti-slip barrel (56) of the inner pressure ring (50) is provided with a groove for accommodating the connecting ring (34) at one end thereof close to the connecting ring (34). The groove divides the anti-slip barrel (56) at one end thereof close to the connecting ring (34) into an outer ring and an inner ring. The outer ring is an outer connecting ring (52), and the inner ring is an inner connecting ring (53). The inner sides of the outer connecting ring (52) and the inner connecting ring (53) are respectively provided with a second flange body (54) and a third flange body (55). The connecting ring (34) is clamped in the outer connecting ring (52) and the inner connecting ring (53) through the second flange body (54) and the third flange body (55).

7. The coaxial cable shielding terminal according to claim 6, characterized in that: The inner side surface of the limiting ring (33) is in contact with the surface of the clamping barrel (51), and the clamping barrel (51) can slide along the inner side surface of the limiting ring (33).

8. The coaxial cable shielding terminal according to claim 5, characterized in that: The inner side surface of the anti-slip ring (32) is in contact with the surface of the anti-slip barrel (56), and the anti-slip barrel (56) can slide along the inner side surface of the anti-slip ring (32).

9. The coaxial cable shielding terminal according to claim 1, characterized in that: The mounting portion (10) further comprises a protective ring (12), a positioning ring (13) and a nut (17) arranged on the back side of the pressing ring (14); the protective ring (12) is configured as a hollow tube for allowing the cable core to pass through; the positioning ring (13) is used for positioning when connected to a connector; and the nut (17) is rotatably arranged on the outside of the pressing ring (11) for connection to the connector.

10. A coaxial cable connector, characterized in that: The coaxial cable shielding terminal comprises the coaxial cable shielding terminal according to any one of claims 1 to 9.

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