CN114865408A

CN114865408A - Coaxial cable connector

Info

Publication number: CN114865408A
Application number: CN202110811635.XA
Authority: CN
Inventors: 黄凯威
Original assignee: EZconn Corp
Current assignee: EZconn Corp
Priority date: 2021-02-04
Filing date: 2021-07-19
Publication date: 2022-08-05
Also published as: TWM624257U

Abstract

The invention provides a coaxial cable connector, which comprises an inner sleeve, a first outer sleeve, a nut sleeve and a second outer sleeve. The outer surface of the inner sleeve is in a step shape and surrounds an axis, and the inner sleeve comprises a first surface and a second surface. The head of the first outer sleeve surrounds the first surface of the inner sleeve. An inner flange of the nut sleeve surrounds the second surface of the inner sleeve, the inner flange having an angled surface disposed at an angle to the axis. The second outer sleeve is sleeved at the tail part of the first outer sleeve. When the second outer sleeve moves axially towards the nut sleeve, the inner circumferential surface of the second outer sleeve pushes the tail part of the first outer sleeve to contract towards the axis.

Description

Coaxial cable connector

Technical Field

The present invention relates to a coaxial cable connector, and more particularly, to a coaxial cable connector with good electrical connectivity.

Background

At present, cable television is the mainstream of television reception. The signals of the cable television are connected to the receiving television by Coaxial cable (Coaxial cable). The coaxial Cable is connected with a Cable television decoder (Cable TV decoders), a digital hard disk recorder (hard disk digital recorders) of a cassette recorder/digital video disk (VCR/DVD), a satellite receiver (satellite receivers), video games (video games), a television signal distributed splitter (TVsignal distribution splitters) and a switch (switches) through a rotary F-Type connector (screen-on F-Type connectors).

The conventional problem of poor electrical grounding connection of the rotary F-type connector is that when the nut of the F-type connector is coupled with the threaded interface connector of the equipment, the nut is not in full contact with the inner sleeve of the F-type connector, and the inner sleeve is not in contact with the threaded interface connector, which results in poor grounding performance between the connector body and the threaded interface connector, thereby reducing electrical signal transmission performance and causing poor contact therebetween. In addition, when a user pulls the coaxial cable of the coaxial cable connector, the coaxial cable is easily loosened, and thus the signal transmission is unstable, so how to improve the above problems to provide a more satisfactory product to the user becomes an important problem to be solved in the present invention.

Disclosure of Invention

Accordingly, it is an object of the present invention to provide a coaxial cable connector that overcomes at least one of the disadvantages of the prior art.

Thus, the coaxial cable connector of the present invention is adapted to engage a terminal of an electronic device having a threaded surface. The coaxial cable connector comprises an inner sleeve, a first outer sleeve, a nut sleeve and a second outer sleeve.

The inner sleeve surrounds an axis, the outer surface of the inner sleeve is stepped, and the inner sleeve comprises a first surface and a second surface.

The first outer sleeve is coaxially arranged outside the inner sleeve and comprises a head part and a tail part, and the head part surrounds the first surface of the inner sleeve.

The nut sleeve is sleeved on the inner sleeve and comprises a threaded part and an inner flange, the threaded part is used for being connected with the threaded surface of the electronic device, and an inclined surface of the inner flange is arranged at an angle with the axis.

The second outer sleeve is sleeved on the tail part of the first outer sleeve, wherein when the second outer sleeve axially moves towards the nut sleeve, the inner circumferential surface of the second outer sleeve pushes the tail part of the first outer sleeve to approach the axial lead.

The present invention further provides a coaxial cable connector adapted to engage a connector of an electronic device having a threaded surface. The coaxial cable connector comprises an inner sleeve, a first outer sleeve, a nut sleeve and a second outer sleeve.

The inner sleeve surrounds an axis, the outer surface of the inner sleeve is in a step shape, the inner sleeve comprises a first surface, a second surface and an inclined surface, and the inclined surface and the axis are arranged at an angle.

The nut sleeve is sleeved on the inner sleeve and comprises a threaded portion and an inner flange, the threaded portion is used for being connected with the threaded surface of the electronic device, and the inner flange surrounds the second surface of the inner sleeve.

According to the specific embodiment provided by the invention, the invention discloses the following technical effects: at least one of the elastic sheet and the C-shaped ring is additionally arranged between the nut sleeve and the inner sleeve, so that the invention can ensure good electrical connection in use, and the tail end part is designed to push the first outer sleeve through the second outer sleeve so as to compress the tail part of the first outer sleeve towards the axial lead, so that the tensile strength is increased when the coaxial cable is combined with the coaxial cable, and the coaxial cable is prevented from being separated from the coaxial cable.

Drawings

These and other components, steps, features, benefits and advantages of the present invention will become apparent from a review of the following detailed description of illustrative embodiments, the accompanying drawings and the claims.

Other features and effects of the present invention will be apparent from the embodiments with reference to the drawings, in which:

FIG. 1 is a cross-sectional view of a first embodiment of the coaxial cable connector of the present invention;

FIG. 2 is a cross-sectional view of the coaxial cable of the present invention;

FIG. 3 is a perspective view of the resilient plate of the first embodiment;

FIG. 4 is a left side view of the resilient plate of the first embodiment;

FIG. 5 is a front side view of the resilient plate of the first embodiment;

FIG. 6 is a cross-sectional view of the coaxial cable connector of the first embodiment with the coaxial cable installed, illustrating a first outer sleeve of the first embodiment deformed without being pushed by a second outer sleeve;

FIG. 7 is a view similar to FIG. 6, showing the first embodiment with the end of the first outer sleeve being urged against the second outer sleeve to contract toward the coaxial cable;

FIGS. 8 and 9 are schematic diagrams of steps of the first embodiment of the coaxial cable connector coupled to a header of an electronic device;

fig. 10, 11 and 12 are perspective, left side and cross-sectional views of another spring plate of the first embodiment of the coaxial cable connector of the present invention;

FIG. 13 is a schematic view of a coaxial cable connector coupled to a header of an electronic device using an alternative spring;

FIG. 14 is a cross-sectional view of the first embodiment of the coaxial cable connector using a C-ring;

fig. 15 is a cross-sectional view of a second embodiment of the coaxial cable connector of the present invention;

FIG. 16 is a cross-sectional view of the second embodiment using the resilient plate.

Description of the symbols:

1-inner sleeve, 11-first surface, 12-second surface, 13-outer flange, 14-rear extension, 141-outer circumference, 142-clearance, 15-bevel, 2-nut sleeve, 21-thread, 22-inner flange, 221-bevel surface, 222-radial extension, 223-axial extension, 31-first outer sleeve, 311-head, 312-tail, 313-shoulder, 314-inner surface, 315-groove, 32-second outer sleeve, 321-guide bevel, 4-spring, 41-stop, 42-base, 43-connection, 44-elastic wing, 45-through hole, 50-wire, 52-insulation layer, 54-thin metal layer, 56-woven layer, 58-plastic rubber layer, 6-C type ring, 9-electronic device, 91-joint, 92-thread surface, A-included angle, B-angle and L-axis line.

Detailed Description

Before the present invention is described in detail, it should be noted that in the following description, similar elements are represented by the same reference numerals, and furthermore, the relevant parameters such as the shapes, the sizes, the thicknesses, the angles, etc. of the elements in the drawings are not drawn to scale, and the simplification is only intended to facilitate the clear description.

Referring to fig. 1, 2 and 3, the first embodiment of the coaxial cable connector of the present invention is adapted to engage a connector 91 (shown in fig. 8) having a threaded surface 92 of an electronic device 9. The coaxial cable connector of the present invention comprises an inner sleeve 1, a nut 2, a first outer sleeve 31, a second outer sleeve 32, and a spring plate 4, wherein the inner sleeve 1, the first outer sleeve 31, and the second outer sleeve 32 coaxially receive a coaxial cable. The inner sleeve 1, the first outer sleeve 31 and the resilient plate 4 are made of a conductive material, such as copper, iron, silver, nickel, gold, copper-gold alloy, copper-tin alloy, copper-nickel alloy or other polymer or non-metal conductor with good conductivity, and the inner sleeve 1, the first outer sleeve 31 and the resilient plate 4 may be plated with a rust-proof metal layer on their surfaces, which includes a copper, iron, silver, nickel, gold, copper-gold alloy, copper-tin alloy, copper-nickel alloy or other polymer or non-metal conductor with good conductivity.

Fig. 2 shows a cross-sectional view of a coaxial cable, which includes a metal wire 50 covered by an insulating layer 52, the insulating layer 52 covered by a thin metal layer 54, the thin metal layer 54 covered by a braided layer 56, finally the braided layer 56 covered by a plastic skin layer 58, wherein the metal wire 50 is made of copper, iron, silver, nickel, gold, copper-gold alloy, copper-tin alloy, copper-nickel alloy, or other polymer or nonmetal conductor with good conductivity, in addition, the material of the thin metal layer 54 is an aluminum-containing metal layer, a copper-containing metal layer or a conductive layer containing a conductive material, such as an aluminum foil clad layer or a copper foil clad layer, the thin metal layer 54 has an electrical shielding effect and can reduce interference, and the braided layer 56 has different coating forms including a two-layer braided (Standard), a three-layer braided (Tri-shield) and a four-layer braided (Quad).

The inner sleeve 1 of the present invention surrounds an axis L, and has a stepped outer surface, and includes a first surface 11, a second surface 12, an outer flange 13, and a rear end extension 14. The second surface 12 of the inner sleeve 1 is located between the outer flange 13 and the first surface 11. The rear end extension 14 has a smaller outer diameter and wall thickness than the first surface 11.

The nut sleeve 2 is sleeved on the inner sleeve 1 and includes a threaded portion 21 and an inner flange 22 inside thereof. The threaded portion 21 is configured to engage a threaded surface 92 of the electronic device 9 (see fig. 8). The inner flange 22 surrounds the second surface 12 of the inner sleeve 1, the inner flange 22 comprises a radially extending surface 222, an axially extending surface 223, and an inclined surface 221, the inclined surface 221 is disposed at an angle to the axis L and is inclined from the radially extending surface 222 to the axially extending surface 223, and an included angle a between the inclined surface 221 and the axially extending surface 223 is 15 to 60 degrees, 10 to 30 degrees, or 20 to 45 degrees. The nut case 2 of the present invention may be any type of nut such as a hex nut, a square nut, a ring nut, a wing nut, etc. and may be used to lock the coaxial cable connector to the electronic device 9 with a wrench or other tool.

The first outer sleeve 31 is coaxially disposed outside the inner sleeve 1, and includes a head portion 311 and a tail portion 312, and a shoulder portion 313 between the head portion 311 and the tail portion 312. The head 311 of the first outer sleeve 31 surrounds the first surface 11 of the inner sleeve 1 and in this embodiment the tail 312 has an outer diameter and a wall thickness which are smaller than the outer diameter and the wall thickness of the head 311. However, in other designs or embodiments it is also possible that the tail portion 312 has an outer diameter and wall thickness greater than or equal to the outer diameter and wall thickness of the head portion 311, the tail portion 312 of the first outer sleeve 31 and the rear end extension 14 of the inner sleeve 1 being in concentric surrounding relationship with an annular hollow in the middle.

The second outer sleeve 32 is sleeved on the tail portion 312 of the first outer sleeve 31. The inner peripheral surface of the second outer sleeve 32 has a guiding inclined surface 321, the guiding inclined surface 321 faces the tail part 312 of the first outer sleeve 31 and is disposed at an angle with the axis L, and preferably, the guiding inclined surface 321 matches the shape of the outer surface of the tail part 312 of the first outer sleeve 31.

Referring to fig. 1, 3, 4 and 5, the resilient piece 4 is sleeved on the second surface 12 of the inner sleeve 1 and includes a blocking portion 41, a plurality of bases 42, a plurality of connecting portions 43, and a plurality of resilient wings 44. The blocking portion 41 has a through hole 45, and the blocking portion 41 is annular or has a notch with an arc of 10 to 30 degrees, 20 to 45 degrees, 60 to 150 degrees or 60 to 120 degrees, and has a diameter such that the resilient tab 4 is disposed at the peripheral edge of the second surface 12 of the inner sleeve 1. Said base 42 is circumjacent to the second surface 12 of the inner sleeve 1. The connecting portions 43 are arranged at intervals in the circumferential direction, and one end of each connecting portion 43 is connected to the stopper portion 41, and the other end is connected to the corresponding base portion 42. The elastic wings 44 are respectively connected to the base 42, each elastic wing 44 being adapted to abut against an inclined surface 221 of the inner flange 22 of the nut 2. Preferably, the flap portion 41 is integrally formed with the base portion 42, the connecting portion 43 and the elastic wing portion 44.

The spring plate 4 of the present invention is in an open state when not assembled with other components, and each elastic wing portion 44 is bent outward from the corresponding base portion 42 by an angle B, which is an acute angle, for example, between 10 degrees and 20 degrees, between 15 degrees and 60 degrees, between 20 degrees and 45 degrees, or between 30 degrees and 75 degrees, and the opening direction of the acute angle is toward the retaining portion 41. When the striking plate 4 is disposed on the inner sleeve 1, the elastic wing portions 44 are adapted to abut against the inclined surface 221 of the inner flange 22 of the nut sleeve 2, and the connecting portions 43 of the striking plate 4 are in close contact with the peripheral edge of the second surface 12, so that the striking plate 4 and the inner sleeve 1 are firmly coupled. Further, the thickness of the blocking portion 41, the connecting portion 43 and the elastic wing portion 44 of the elastic sheet 4 is between 0.05mm and 0.5mm or between 0.03mm and 1mm, and the shape of the elastic wing portion 44 includes a square, triangle, semicircle or polygon, and the surface of the elastic wing portion 44 may be smooth, rough or granular.

Referring to fig. 1, 5, 6 and 7, the coaxial cable connector of the present invention may be assembled, for example, by first passing the through hole 45 of the elastic piece 4 through the rear end extension 14 of the inner sleeve 1 and disposed on the second surface 12 of the inner sleeve 1, then passing the nut sleeve 2 through the rear end extension 14 of the inner sleeve 1, so that the inner flange 22 of the nut sleeve 2 surrounds the second surface 12 of the inner sleeve 1 and the surface of the elastic piece 4, then passing the rear end extension 14 of the inner sleeve 1 through the first outer sleeve 31 in a tight fit manner, and tightly engaging the first surface 11 of the inner sleeve 1 with the head 311 of the first outer sleeve 31, and then passing the second outer sleeve 32 through the tail 312 of the first outer sleeve 31.

When the coaxial cable is installed in the coaxial cable connector, the braid 56 and the plastic sheath 58 of the coaxial cable are extruded into the gap formed by the rear end extension 14 of the inner sleeve 1 and the tail portion 312 of the first outer sleeve 31, at this time, a portion of the braid 56 is turned over to cover a portion of the plastic sheath 58, and the metal wire 50, the insulator layer 52 and the thin metal layer 54 of the coaxial cable pass through the outer flange 13 of the inner sleeve 1, wherein the metal wire 50 extends into the space formed by the threaded portion 21 of the nut sleeve 2. In order to prevent the coaxial cable from being easily loosened from the connector due to the pulling of the coaxial cable by the user, the present invention forces the inner circumferential surface of the second outer sleeve 32 to push the tail portion 312 of the first outer sleeve 31 to approach the axial line L through the process of moving the second outer sleeve 32 axially toward the nut sleeve 2, so that the tail portion 312 of the first outer sleeve 31 with elasticity is disposed on the coaxial cable line in a closer fit under the action of the radial component force, as shown in fig. 7.

Referring to fig. 8 and 9, the step of mounting the coaxial cable connector to the electronic device 9 may be, for example, aligning the connector with the coaxial cable to be close to the connector 91 with the threaded surface 92 of the electronic device 9, inserting the wire 50 at the center of the coaxial cable into the connector 91 with the threaded surface 92, then rotating the nut 2 to make the outer flange 13 of the inner sleeve 1 of the coaxial cable connector gradually approach the connector 91, the inner flange 22 of the nut 2 gradually approaches the blocking portion 41 of the elastic piece 4 while rotating until contacting each other, and the inner flange 22 of the nut 2 also simultaneously presses the elastic wing portion 44 of the elastic piece 4 to reduce the opening angle of the elastic wing portion 44. During the rotation of the nut 2, the elastic wing portions 44 of the elastic piece 4 are compressed (or contracted) from the expanded state (as shown in fig. 8) to the contracted state (as shown in fig. 9), when the nut 2 is completely coupled to the connector 91 of the electronic device 9, the coaxial cable connector and the connector 91 of the electronic device 9 are completely locked, wherein the elastic wing portions 44 are radially located between the inner flange 22 of the nut 2 and the second surface 12 of the inner sleeve 1, the inner flange 22 of the nut 2 interferes with the blocking portion 41 of the elastic piece 4, the blocking portion 41 is pressed by the inner flange 22 of the nut 2 to tightly contact the outer flange 13 of the inner sleeve 1, the blocking portion 41 is located between the outer flange 13 and the inner flange 22, the elastic wing portions 44 have elastic force to tightly contact the surface of the inner sleeve 1, the elastic wing portions 44 and the connecting portions 43 are radially located between the inner flange 22 and the inner sleeve 1, the inner flange 22 of the nut 2 simultaneously contacts the stop portion 41, the elastic wing portion 44 and the connecting portion 43, so that the contact between the three is good, and a good electrical connection is provided, thereby ensuring the signal transmission quality, wherein the electrical connection is a ground (ground).

It should be noted that the number of the elastic wing portion 44, the connecting portion 43 and the base portion 42 of the elastic sheet 4 of the present invention can be only one, so as to achieve the same purpose and effect of the present invention.

Referring to fig. 10, fig. 11, fig. 12 and fig. 13, another embodiment of the elastic piece 4 is adopted for the coaxial cable connector according to the first embodiment of the present invention.

The elastic sheet 4 is only provided with a base 42, a plurality of connecting portions 43 and a plurality of elastic wing portions 44, the base 42 and the connecting portions 43 are integrally formed, and the connecting portions 43 and the elastic wing portions 44 are arranged in a staggered manner in the circumferential direction of the base 42. When the coaxial cable connector is assembled in the electronic device 9, the inner flange 22 of the nut 2 is in contact with the outer flange 13 of the inner sleeve 1, and the elastic wing portion 44 is radially located between the inner flange 22 of the nut 2 and the second surface 12 of the inner sleeve 1, so that the nut 2 is in close contact with the inner sleeve 1 by the elastic force of the elastic wing portion 44 itself, thereby providing a good electrical connection, and further ensuring the signal transmission quality, wherein the electrical connection is ground (ground).

Referring to fig. 14, the coaxial cable connector of the present invention may be implemented by disposing a C-ring 6 instead of the elastic piece, wherein the C-ring 6 is located between the second surface 12 of the inner sleeve 1 and the inclined surface 221 of the inner flange 22, the cross section of the C-ring 6 is a rectangle with equal width in the upper and lower portions in the present embodiment, and in other embodiments, the C-ring 6 may be a parallelogram with equal width in the upper and lower portions, a circle, an ellipse or a polygon, the C-ring 6 is made of a conductive material, such as copper, iron, silver, nickel, tin, gold, copper-gold alloy, copper-tin alloy, copper-nickel alloy, brass alloy, phosphor bronze, beryllium copper, aluminum alloy, zinc alloy, steel alloy or other polymer with good conductivity (such as conductive plastic) or non-metallic conductor, and the surface of the C-ring 6 may be plated, electroplated or covered with a layer of anti-rust metal, the material includes copper, iron, silver, nickel, tin, gold and other metal materials. In the present embodiment, during the process that the inner flange 22 of the nut sleeve 2 axially moves towards the outer flange 13 of the inner sleeve 1, the inclined surface 221 of the inner flange 22 allows the C-ring 6 to move along the surface thereof, so that the C-ring 6 deforms in a limited space and contacts with the nut sleeve 2 and the inner sleeve 1 more tightly, thereby ensuring that the present invention is in a conducting state at any time during operation, so as to provide good electrical connection and ensure signal transmission quality.

It should be noted that, in other embodiments, the coaxial cable connector of the present invention can also be implemented by disposing the C-ring and the spring plate at the same time. In the component configuration, for example, the base of the spring plate is connected to the second surface of the inner sleeve, and the elastic wing of the spring plate and the partial C-shaped ring are located between the second surface of the inner sleeve and the inclined surface of the inner flange. The inclined surface of the inner flange contacts the resilient wing and the C-ring with a tight fit as the inner flange moves axially towards the outer flange, which also serves to provide good electrical contact.

Referring to fig. 15, a second embodiment of the coaxial cable connector of the present invention is shown, which is similar to the first embodiment, and the main differences are:

the inner sleeve 1 further comprises a ramp 15, the second surface 12 of the inner sleeve 1 being located between the first surface 11 and the ramp 15, said ramp 15 being arranged at an angle to the axis L. In this embodiment, the spring is replaced by a C-shaped ring 6, and the C-shaped ring 6 is connected to the inclined surface 15 of the inner sleeve 1. During assembly, when the inner flange 22 of the nut 2 moves axially towards the outer flange 13 of the inner sleeve 1, the radially extending surface 222 of the inner flange 22 contacts the C-ring 6 and pushes the C-ring 6 to move along the inclined surface 15, which ensures that the nut 2 and the inner sleeve 1 are in a conductive state during operation, thereby providing a good electrical connection and ensuring signal transmission quality. In addition, the outer peripheral surface 141 of the rear end extension 14 of the inner sleeve 1 is serrated, and the inner surface 314 of the tail portion 312 of the first outer sleeve 31 is rough, for example, a knurled interference surface, which is used to increase the tensile strength when the coaxial cable is combined.

Referring to fig. 16, the coaxial cable connector according to the second embodiment of the present invention can be implemented by disposing the resilient plate 4 instead of the C-ring, wherein the base portion 42 of the resilient plate 4 is connected to the second surface 12 of the inner sleeve 1, and the elastic wing portion 44 is bent outward from the base portion 42 at an angle. When the inner flange 22 of the nut sleeve 2 moves axially towards the outer flange 13 of the inner sleeve 1, the axially extending surface 223 of the inner flange 22 contacts the base 42 of the resilient plate 4 and pushes the resilient wing 44 of the resilient plate 4 to lie against the inclined surface 15 of the inner sleeve 1, so as to provide a good electrical connection through the design of the nut sleeve 2, the resilient plate 4 and the inner sleeve 1 in close fit contact with each other, wherein the electrical connection is grounded.

In addition, in order to make the portions (the braid and the plastic sheath) of the coaxial cable easily inserted into the gap 142 formed by the rear end extension section 14 and the tail portion 312 of the first outer sleeve 31, in the embodiment, the outer peripheral surface 141 of the rear end extension section 14 of the inner sleeve 1 is parallel to the axis L, preferably, the inner surface of the tail portion 312 of the first outer sleeve 31 has a groove 315, and the groove 315 is used for accommodating the portion of the coaxial cable deformed by extrusion, thereby increasing the tensile strength between the tail portion 312 of the first outer sleeve 31 and the coaxial cable after being compressed and deformed toward the axis L.

In summary, the coaxial cable connector of the present invention can ensure good electrical connection in use by adding at least one of the spring plate and the C-ring between the nut sleeve and the inner sleeve, and the tail end of the coaxial cable connector is designed to compress the tail of the first outer sleeve toward the axial line by pushing the second outer sleeve against the first outer sleeve, so as to increase the tensile strength when the coaxial cable connector is combined with the coaxial cable, so as to prevent the coaxial cable from separating from the coaxial cable connector, thereby achieving the purpose of the present invention.

The technical content disclosed by the present invention is not limited to the above embodiments, and all the concepts and principles of the invention disclosed by the present invention are the same as those of the claims of the present invention. It is noted that the definitions of elements, such as "first" and "second," are not words of limitation, but rather are words of distinction. As used herein, "comprising" or "including" encompasses the concepts of "including" and "having" and means the elements, acts and/or groups or combinations thereof, and does not imply an exclusive or an added meaning. Additionally, unless specifically stated, the order of steps of operations does not represent an absolute order. The use of the terms "a" and "an" when referring to an element in the singular, such as the use of the article "a" or "an," does not denote "one and only one" but rather "one or more" unless specifically stated otherwise. As used herein, "and/or" means "and" or "as well as" and "or". The terms "about" and/or "about" as used herein include all and/or about limitations, such as "at least," "greater than," "less than," "not greater than," and the like, and refer to either the upper or lower limit of a range.

However, the above description is only an example of the present invention, and the scope of the present invention should not be limited thereby, and all simple equivalent changes and modifications made according to the claims and the contents of the patent specification are still within the scope covered by the present invention.

Claims

1. A coaxial cable connector adapted to engage a terminal of an electronic device having a threaded surface, the coaxial cable connector comprising:

an inner sleeve surrounding an axis, the outer surface of the inner sleeve is in a step shape and comprises a first surface and a second surface;

a first outer sleeve coaxially arranged outside the inner sleeve and comprising a head part and a tail part, wherein the head part surrounds the first surface of the inner sleeve;

the nut sleeve is sleeved on the inner sleeve and comprises a threaded part and an inner flange, the threaded part is used for being jointed with the threaded surface of the electronic device, and an inclined surface of the inner flange is arranged at an angle with the axis; and

and the second outer sleeve is sleeved on the tail part of the first outer sleeve, and when the second outer sleeve axially moves towards the nut sleeve, the inner circumferential surface of the second outer sleeve pushes the tail part of the first outer sleeve to approach the axial lead.

2. The coaxial cable connector of claim 1, wherein the inner peripheral surface of the second outer sleeve has a guiding bevel facing the tail of the first outer sleeve.

3. The coaxial cable connector of claim 1, wherein an inner surface of the tail portion of the first outer sleeve is roughened.

4. The coaxial cable connector of claim 1, wherein an outer peripheral surface of a rear end extension of the inner sleeve is parallel to the axial line, and an inner surface of the tail portion of the first outer sleeve has a groove.

5. The coaxial cable connector of claim 1, further comprising a C-ring positioned between the second surface of the inner sleeve and the angled surface of the inner flange.

6. The coaxial cable connector of claim 1, further comprising a spring plate, the spring plate including a base portion and at least one resilient wing portion, the base portion being disposed around the second surface of the inner sleeve, the at least one resilient wing portion being angled outwardly from the base portion when the spring plate is in an expanded state, the at least one resilient wing portion being radially positioned between the inner flange and the inner sleeve when the spring plate is in a contracted state.

7. The coaxial cable connector of claim 6, further comprising a C-ring positioned between the second surface of the inner sleeve and the angled surface of the inner flange.

8. The coaxial cable connector of claim 7, wherein the C-ring has a cross-section that is equal in width from top to bottom.

9. The coaxial cable connector of claim 6, wherein the at least one resilient wing is adapted to bear against an inclined surface of the inner flange of the nut sleeve, the inclined surface being inclined from a radially extending surface of the inner flange to an axially extending surface of the inner flange.

10. The coaxial cable connector of claim 6, wherein the at least one resilient wing has a thickness of between 0.05mm and 0.5 mm.

11. The coaxial cable connector of claim 6, wherein the base portion is integral with the at least one resilient wing portion.

12. The coaxial cable connector of claim 6, wherein the inner sleeve further comprises an outer flange, the second surface of the inner sleeve is positioned between the outer flange and the first surface, the spring plate further comprises a blocking portion and a connecting portion, the connecting portion connects the blocking portion and the base portion, the spring plate assumes the retracted state when the nut sleeve fully engages the connector of the electronic device, the blocking portion is positioned between the outer flange and the inner flange, and the connecting portion is adapted to be positioned radially between the inner flange and the inner sleeve.

13. The coaxial cable connector of claim 12, wherein the angle of the spring is acute when the spring is in the open state, and the opening of the acute angle faces the blocking portion.

14. The coaxial cable connector of claim 12, wherein the thickness of the stop portion is between 0.05mm and 0.5 mm.

15. A coaxial cable connector adapted to engage a terminal of an electronic device having a threaded surface, the coaxial cable connector comprising:

an inner sleeve surrounding an axis, the outer surface of the inner sleeve is in a step shape and comprises a first surface, a second surface and an inclined surface, and the inclined surface and the axis are arranged in an angle;

the nut sleeve is sleeved on the inner sleeve and comprises a thread part and an inner flange, the thread part is used for being jointed with the thread surface of the electronic device, and the inner flange surrounds the second surface of the inner sleeve; and

the second outer sleeve is sleeved on the tail part of the first outer sleeve, and when the second outer sleeve axially moves towards the nut sleeve, the inner circumferential surface of the second outer sleeve pushes the tail part of the first outer sleeve to approach the axial lead.

16. The coaxial cable connector of claim 15, wherein an outer peripheral surface of a rear end extension of the inner sleeve is parallel to the axial line, and an inner surface of the tail portion of the first outer sleeve has a groove.

17. The coaxial cable connector of claim 15, wherein an inner surface of the tail portion of the first outer sleeve is roughened.

18. The coaxial cable connector of claim 15, further comprising a C-ring, the C-ring being coupled to the ramp of the inner sleeve, a radially extending surface of the inner flange being configured to urge the C-ring to move along the ramp.

19. The coaxial cable connector of claim 18, wherein the C-ring has a cross-section that is one of rectangular, circular, oval, and polygonal.

20. The coaxial cable connector of claim 15, further comprising a spring plate, the spring plate comprising a base and at least one elastic wing, the base surrounding the second surface of the inner sleeve, the at least one elastic wing lying against the inclined surface of the inner sleeve.