Coaxial cable connector made of crosslinked polystyrene and used for base station antenna

Abstract

The invention discloses a coaxial cable connector made of crosslinked polystyrene and used for a base station antenna, and relates to the field of coaxial cable connectors, the coaxial cable connector comprises a socket and a plug plugged with the socket, and the plug is composed of an external thread interface, an internal thread interface and a connecting seat; the conductive unit is arranged in the plug; the sealing assembly is arranged in the internal thread connector and comprises an annular mounting seat, and an outer conical shrinkage sleeve is arranged at one end of the annular mounting seat; the inner wall of the pressing connector is provided with an annular bulge; according to the invention, the pressing interface is screwed to rotate and move at the same time, and the outer conical shrinkage sleeve is extruded by the annular bulge, so that the outer conical shrinkage sleeve is shrunk and clings to the coaxial cable, the coaxial cable can be further fixed, sealing can be automatically completed, and waterproof and dustproof effects are realized; and the outer conical shrinkage sleeve gradually recovers and does not cling to the coaxial cable, and then the coaxial cable can be conveniently taken down.

Description

Technical Field

[0001] The present invention relates to the technical field related to coaxial cable connectors, and in particular to a coaxial cable connector made of cross-linked polystyrene and used for base station antennas. Background Art

[0002] A coaxial connector is a component that is attached to a cable or installed on an instrument. It serves as an element for electrical connection or separation. A coaxial connector generally includes a plug and a socket that can be plugged into each other. The socket is generally installed on an electronic device, and the plug is usually installed at the end of the coaxial cable. Electrical connection or separation is achieved by plugging the plug and the socket into each other.

[0003] During the entire feed network connection process of the base station antenna, coaxial connectors are needed to connect the various parts of the feed network. However, the existing coaxial connectors still have the following shortcomings during use: Sometimes, in order to avoid cable waste, the coaxial connector and the coaxial cable need to be connected outdoors. After the connection, waterproof tape, heat shrink tube, cold shrink tube and other waterproof structures need to be used to waterproof the connection between the coaxial connector and the coaxial cable, which will undoubtedly increase the difficulty of subsequent disassembly of the coaxial connector and the coaxial cable, especially the heat shrink tube and cold shrink tube that need to be cut open to remove. Regardless of whether heat shrink tube or cold shrink tube is used, it is easy to cut the coaxial connector and coaxial cable when cutting, which brings inconvenience to the maintenance of the base station antenna. Summary of the Invention

[0004] In order to solve the defects of the prior art, the present invention provides a coaxial cable connector made of cross-linked polystyrene for a base station antenna.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The present invention discloses a coaxial cable connector for a base station antenna made of cross-linked polystyrene, comprising a socket and a plug connected to the socket, wherein the plug comprises an external thread interface, an internal thread interface and a connecting seat;

[0007] A conductive unit provided in the plug, which is composed of a conductor and a pre-fixing component for pre-fixing the coaxial cable;

[0008] A sealing assembly provided in the internal threaded interface comprises an annular mounting seat, one end of which is provided with an outer conical shrink sleeve;

[0009] The compression interface is threaded with the internal thread interface, and its inner wall is provided with an annular protrusion that abuts against the outer conical shrink sleeve. The outer conical shrink sleeve is squeezed to shrink it to fix the coaxial cable and seal the connection between the coaxial cable and the plug.

[0010] As a preferred technical solution of the present invention, the sealing assembly also includes an annular movable bracket slidably sleeved outside the annular mounting seat and at least one tightening member for connecting the annular mounting seat and the annular movable bracket, a rotating ring is provided at one end of the annular movable bracket, and a positioning ring is also provided at the other end of the annular mounting seat.

[0011] As a preferred technical solution of the present invention, a rotating ring groove for rotating with the rotating ring is provided at one end of the clamping interface, and a tightening block is provided on the outer wall of the other end.

[0012] As a preferred technical solution of the present invention, the pre-fixing assembly is composed of a fixing seat and an elastic fixing member, and the elastic fixing member includes an annular fixing plate, at least two elastic arms and a plug-in arm corresponding to the elastic arm. One end of the elastic arm is bent outward and extends to the annular fixing plate and is connected to the annular fixing plate, and the other end is bent outward and extends to form a resistance portion. The resistance portion clamps the conductor of the coaxial cable by cooperating with the elastic arm, and one end of the plug-in arm is bent inward and extends to the resistance portion and is connected to the resistance portion.

[0013] As a preferred technical solution of the present invention, the fixing seat is a cylindrical structure with one end open and the other end closed. The closed end of the fixing seat is provided with a central hole for installing a conductor. A plurality of avoidance holes are provided on the fixing seat. One end of the avoidance hole is connected to a sliding groove that slides with the plug-in arm.

[0014] As a preferred technical solution of the present invention, the external threaded interface is externally threaded with a fastening screw sleeve that can be threaded with the socket, and the fastening screw sleeve fastens the socket and the plug by being threaded with the socket and the external threaded interface.

[0015] As a preferred technical solution of the present invention, an insulating sleeve is provided in the external threaded interface, an insulating partition in the insulating sleeve is provided with a mounting through hole capable of allowing the small-diameter end of the conductor to pass through, and the insulating sleeve is made of cross-linked polystyrene.

[0016] As a preferred technical solution of the present invention, the connecting seat and the insulating sleeve are both provided with an annular waist platform at one end close to the internal thread interface, and an annular positioning groove that can match the positioning ring is formed between the two annular waist platforms.

[0017] As a preferred technical solution of the present invention, the connecting seat is arranged between the external thread interface and the internal thread interface and is coaxially arranged with the external thread interface and the internal thread interface, and the annular movable bracket is slidably matched with the connecting seat.

[0018] As a preferred technical solution of the present invention, the inclined surface of the annular protrusion conflicts with the outer conical surface of the outer conical shrink sleeve, and the cross-sectional shape of the annular protrusion is a wedge shape or a right triangle.

[0019] The beneficial effects of the present invention are:

[0020] 1. This coaxial cable connector, made of cross-linked polystyrene and used for base station antennas, rotates and moves by twisting the compression interface, and uses the annular protrusion to squeeze the outer conical shrink sleeve, causing the outer conical shrink sleeve to shrink and fit tightly against the coaxial cable. This not only further secures the coaxial cable, but also automatically seals it to achieve waterproof and dustproof properties. When the compression interface is twisted to move it away from the connector, the outer conical shrink sleeve will gradually recover and no longer fit tightly against the coaxial cable, allowing the coaxial cable to be easily removed.

[0021] 2. This type of coaxial cable connector made of cross-linked polystyrene used for base station antennas has a tightening part that is always in a compressed state during the movement of the compression interface. With the help of the elastic force of the tightening part, the connecting seat and the compression interface, the annular mounting seat can be firmly pressed. After unscrewing the compression interface from the internal thread interface, the sealing assembly can be directly removed, which is conducive to the replacement or maintenance of the sealing assembly.

[0022] 3. This coaxial cable connector for base station antennas is made of cross-linked polystyrene. After the coaxial cable conductor is inserted into the fixing seat, the elastic triangular structure formed by the elastic arm and the contact part is used to clamp the conductor, pre-fixing the coaxial cable. This is conducive to maintaining good contact between the conductor and the conductive body. It can also be used to clamp conductors of various different diameters, and has a wider range of applications.

[0023] 4. This type of coaxial cable connector made of cross-linked polystyrene used for base station antennas, when the clamping interface is twisted to move it away from the connecting seat, the elastic force of the clamping piece will drive the annular movable bracket to come into contact with the clamping interface, so that the rotating ring can not be separated from the rotating ring groove, and the reliability is higher.

[0024] 5. This coaxial cable connector made of cross-linked polystyrene for base station antennas can smoothly push the annular movable bracket to move by the rotating ring and the rotating ring groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 This is a schematic structural diagram of a socket and a plug of a coaxial cable connector made of cross-linked polystyrene for a base station antenna according to the present invention;

[0027] Figure 2 This is a schematic diagram of the internal structure of a plug of a coaxial cable connector made of cross-linked polystyrene for a base station antenna according to the present invention;

[0028] Figure 3 This is a schematic diagram of the internal structure of a plug (omitting the sealing component and the compression interface) of a coaxial cable connector made of cross-linked polystyrene for a base station antenna according to the present invention;

[0029] Figure 4 This is a schematic structural diagram of a sealing assembly of a coaxial cable connector made of cross-linked polystyrene for a base station antenna according to the present invention;

[0030] Figure 5 This is a three-dimensional cutaway view of a sealing assembly of a coaxial cable connector made of cross-linked polystyrene for a base station antenna according to the present invention;

[0031] Figure 6 This is an exploded view of a sealing assembly of a coaxial cable connector made of cross-linked polystyrene for a base station antenna according to the present invention;

[0032] Figure 7 This is a schematic diagram of the compression interface structure of a coaxial cable connector made of cross-linked polystyrene for a base station antenna according to the present invention;

[0033] Figure 8 This is a three-dimensional cutaway view of a compression interface of a coaxial cable connector made of cross-linked polystyrene for a base station antenna according to the present invention;

[0034] Figure 9 This is a schematic structural diagram of a conductive unit of a coaxial cable connector made of cross-linked polystyrene for a base station antenna according to the present invention;

[0035] Figure 10 This is a three-dimensional cross-sectional view of a fixing base and an elastic fixing member of a coaxial cable connector made of cross-linked polystyrene for a base station antenna of the present invention;

[0036] Figure 11 The present invention is a schematic structural diagram of an elastic fixing member of a coaxial cable connector made of cross-linked polystyrene for a base station antenna.

[0037] In the figure: 001, coaxial cable; 1, external thread interface; 2, internal thread interface; 3, fastening screw; 4, socket; 5, connecting seat; 6, conductive unit; 61, fixing seat; 62, conductor; 63, avoidance hole; 64, sliding groove; 65, annular fixing plate; 66, elastic arm; 67, resistance part; 68, plug-in arm; 7, insulating sleeve; 8, sealing assembly; 81, annular mounting seat; 811, positioning ring; 82, outer conical shrink sleeve; 83, tightening piece; 84, annular movable bracket; 841, rotating ring; 9, tightening interface; 91, rotating ring groove; 92, annular protrusion; 93, tightening block. DETAILED DESCRIPTION

[0038] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0039] Example: Figure 1-Figure 3 As shown, the present invention is a coaxial cable connector made of cross-linked polystyrene for base station antennas, including a socket 4 and a plug plugged into the socket 4, wherein the plug is composed of an external thread interface 1, an internal thread interface 2, and a connecting seat 5; the socket housing is composed of the external thread interface 1, the internal thread interface 2, and the connecting seat 5;

[0040] The conductive unit 6 provided in the plug is composed of a conductor 62 and a pre-fixing assembly for pre-fixing the coaxial cable 001; the conductor 62 is used to electrically connect with the conductor of the coaxial cable 001;

[0041] The sealing assembly 8 is provided in the internal thread interface 2, and includes an annular mounting seat 81, and one end of the annular mounting seat 81 is provided with an outer conical shrink sleeve 82;

[0042] The compression interface 9 threadedly connected to the internal thread interface 2 has an annular protrusion 92 on its inner wall that abuts against the outer conical shrink sleeve 82. The outer conical shrink sleeve 82 is squeezed to shrink it to fix the coaxial cable 001 and seal the connection between the coaxial cable 001 and the plug.

[0043] By twisting the clamping interface 9, the clamping interface 9 is rotated and moved toward the connecting seat 5, and the annular protrusion 92 is used to squeeze the outer conical shrink sleeve 82, so that the outer conical shrink sleeve 82 shrinks and fits tightly against the coaxial cable 001, which not only further fixes the coaxial cable 001, but also automatically completes the seal to achieve waterproof and dustproof. When the clamping interface 9 is twisted to move away from the connecting seat 5, the outer conical shrink sleeve 82 will gradually recover and no longer fit tightly against the coaxial cable 001. After that, the coaxial cable 001 can be easily removed, which not only makes maintenance more convenient, but also effectively prevents the coaxial cable 001 from being scratched.

[0044] In this embodiment, the inclined surface of the annular protrusion 92 abuts against the outer conical surface of the outer conical shrink sleeve 82 . The cross-section of the annular protrusion 92 is a wedge or right triangle, and can abut against the outer wall of the outer conical shrink sleeve 82 .

[0045] In this embodiment, the connecting seat 5 is arranged between the external thread interface 1 and the internal thread interface 2 and is coaxially arranged with the external thread interface 1 and the internal thread interface 2, and the annular movable bracket 84 is slidably matched with the connecting seat 5.

[0046] In addition, the housings of the socket 4 and the plug may be made of cross-linked polystyrene in addition to being made of metal materials.

[0047] Among them, Figure 4-Figure 6 As shown, the sealing assembly 8 also includes an annular movable bracket 84 that is slidably sleeved on the outside of the annular mounting seat 81 and at least one tightening member 83 for connecting the annular mounting seat 81 and the annular movable bracket 84. One end of the annular movable bracket 84 is provided with a rotating ring 841, and the other end of the annular mounting seat 81 is also provided with a positioning ring 811. During the movement of the clamping interface 9, the tightening member 83 is always in a compressed state. With the help of the elastic force of the tightening member 83, the connecting seat 5 and the clamping interface 9, the annular mounting seat 81 can be firmly pressed. After unscrewing the clamping interface 9 from the internal threaded interface 2, the sealing assembly 8 can be directly taken out, which is convenient for replacing or repairing the sealing assembly 8.

[0048] In this embodiment, the pressing member 83 can be a spring or other elastic elastic member. When the pressing member 83 is a spring, it can be sleeved outside the annular mounting seat 81 (such as Figure 5 ), or more than two springs may be arranged in an annular distribution manner outside the annular mounting seat 81, so the specific installation method and installation position of the fastening member 83 are not limited.

[0049] In addition, the annular movable bracket 84 also plays a limiting role.

[0050] Among them, Figure 7 and Figure 8 As shown, one end of the clamping interface 9 is provided with a rotating ring groove 91 that rotates with the rotating ring 841, and the outer wall of the other end is provided with a tightening block 93. Through the rotational cooperation between the rotating ring 841 and the rotating ring groove 91, the rotating clamping interface 9 can smoothly push the annular movable bracket 84 to move; the user can rotate the clamping interface 9 by rotating the tightening block 93, which is convenient to use.

[0051] Among them, Figures 9-11 As shown, the pre-fixing component is composed of a fixing seat 61 and an elastic fixing part, and the elastic fixing part includes an annular fixing plate 65, at least two elastic arms 66 and a plug-in arm 68 corresponding to the elastic arm 66, one end of the elastic arm 66 is bent outward and extends to the annular fixing plate 65 and is connected to the annular fixing plate 65, and the other end is bent outward and extends to form a contact portion 67, and the contact portion 67 is cooperated with the elastic arm 66 to clamp the conductor of the coaxial cable 001, and one end of the plug-in arm 68 is bent inward and extends to the contact portion 67 and is connected to the contact portion 67. After the conductor of the coaxial cable 001 is inserted into the fixing seat 61, the elastic triangular structure formed by the elastic arm 66 and the contact portion 67 is used to clamp the conductor, and the coaxial cable 001 is pre-fixed, which is beneficial for the conductor to maintain good contact with the conductor 62, and can also be used to clamp conductors of various different diameters, with a wider range of applications.

[0052] Specifically, the fixing seat 61 is a cylindrical structure with one end open and the other end closed. The closed end of the fixing seat 61 is provided with a central hole for installing the conductor 62. The fixing seat 61 is provided with a plurality of avoidance holes 63. The avoidance holes 63 are conducive to the movement of the elastic arm 66 and the resistance part 67. One end of the avoidance hole 63 is connected to a sliding groove 64 that slides with the plug-in arm 68. During assembly, the plug-in arm 68 can be more conveniently inserted into the sliding groove 64. The provided sliding groove 64 is used to guide the plug-in arm 68.

[0053] Among them, Figure 1 As shown, the external threaded interface 1 is externally threaded with a fastening screw sleeve 3 that can be threaded with the socket 4. The fastening screw sleeve 3 is threaded with the socket 4 and the external threaded interface 1 to fasten the socket 4 and the plug. The electrical connection is achieved by plugging the socket 4 and the plug. Then, the fastening screw sleeve 3 is rotated to move the fastening screw sleeve 3 away from the connecting seat 5. The fastening screw sleeve 3 is threaded with the socket 4 and the plug to tightly fix the two.

[0054] Among them, Figure 2 and Figure 3 As shown, an insulating sleeve 7 is provided in the external threaded interface 1, and an insulating partition in the insulating sleeve 7 is provided with an installation through hole that can accommodate the small diameter end of the conductor 62 to pass through. The insulating sleeve 7 is made of cross-linked polystyrene and can play a good insulating role.

[0055] Among them, Figure 2 and Figure 3 As shown, the connecting seat 5 and the insulating sleeve 7 are both provided with an annular waist at one end close to the internal thread interface 2, and an annular positioning groove that can match the positioning ring 811 is formed between the two annular waists. The annular waist on the connecting seat 5 is located on the inner wall of the connecting seat 5, and the annular waist on the internal thread interface 2 is located on the outer wall of the internal thread interface 2. The sealing assembly 8 is positioned using the annular positioning groove and the positioning ring 811 that matches the annular positioning groove.

[0056] During operation, after the conductor of the coaxial cable 001 is inserted into the fixing seat 61, the elastic triangular structure formed by the elastic arm 66 and the abutment portion 67 is used to clamp the conductor to pre-fix the coaxial cable 001. Then, the tightening block 93 is used to screw the tightening interface 9, so that the tightening interface 9 is rotated and moved toward the connecting seat 5. The movable tightening interface 9 pushes the annular movable bracket 84 close to the connecting seat 5 and squeezes the abutment 83. At the same time, the annular protrusion 92 is used to squeeze the outer conical shrink sleeve 82, so that The outer conical shrinking sleeve 82 shrinks and fits tightly against the coaxial cable 001, which not only further fixes the coaxial cable 001, but also automatically completes the seal to achieve waterproof and dustproof. When the clamping interface 9 is twisted to move it away from the connecting seat 5, the elastic force of the clamping member 83 will drive the annular movable bracket 84 to contact the clamping interface 9. The clamping member 83 is used to stabilize the annular mounting seat 81, and the outer conical shrinking sleeve 82 will gradually recover and no longer fit tightly against the coaxial cable 001. After that, the coaxial cable 001 can be easily removed.

[0057] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A coaxial cable connector made of cross-linked polystyrene for base station antennas, characterized in that: include: A socket (4) and a plug connected to the socket (4), wherein the plug is composed of an external thread interface (1), an internal thread interface (2) and a connecting seat (5); A conductive unit (6) provided in the plug, which is composed of a conductor (62) and a pre-fixing component for pre-fixing a coaxial cable (001); A sealing assembly (8) disposed in the internal threaded interface (2) comprises an annular mounting seat (81), one end of the annular mounting seat (81) being provided with an outer conical shrink sleeve (82); The compression interface (9) is threadedly connected to the internal thread interface (2), and an annular protrusion (92) is provided on its inner wall, which abuts against the outer conical shrink sleeve (82). The outer conical shrink sleeve (82) is squeezed to shrink it, thereby fixing the coaxial cable (001) and sealing the connection between the coaxial cable (001) and the plug.

2. The coaxial cable connector made of cross-linked polystyrene for base station antenna according to claim 1, characterized in that: The sealing assembly (8) further comprises an annular movable bracket (84) slidably sleeved outside the annular mounting seat (81) and at least one abutting member (83) for connecting the annular mounting seat (81) and the annular movable bracket (84); a rotating ring (841) is provided at one end of the annular movable bracket (84), and a positioning ring (811) is also provided at the other end of the annular mounting seat (81).

3. The coaxial cable connector made of cross-linked polystyrene for base station antenna according to claim 2, characterized in that: One end of the clamping interface (9) is provided with a rotating ring groove (91) that is rotatably matched with the rotating ring (841), and the outer wall of the other end is provided with a tightening block (93).

4. The coaxial cable connector made of cross-linked polystyrene for base station antenna according to claim 1, characterized in that: The pre-fixing assembly is composed of a fixing seat (61) and an elastic fixing member, wherein the elastic fixing member includes an annular fixing plate (65), at least two elastic arms (66) and a plug-in arm (68) corresponding to the elastic arm (66), one end of the elastic arm (66) is bent outward and extends to the annular fixing plate (65) and is connected to the annular fixing plate (65), and the other end is bent outward and extends to form a contact portion (67), and the contact portion (67) clamps the conductor of the coaxial cable (001) by cooperating with the elastic arm (66), and one end of the plug-in arm (68) is bent inward and extends to the contact portion (67) and is connected to the contact portion (67).

5. The coaxial cable connector made of cross-linked polystyrene for base station antenna according to claim 4, characterized in that: The fixing seat (61) is a cylindrical structure with one end open and the other end closed. The closed end of the fixing seat (61) is provided with a central hole for mounting a conductor (62). The fixing seat (61) is provided with a plurality of avoidance holes (63). One end of the avoidance hole (63) is connected to a sliding groove (64) that is slidably matched with the plug arm (68).

6. The coaxial cable connector made of cross-linked polystyrene for base station antenna according to claim 1, characterized in that: The external threaded interface (1) is externally threaded with a fastening screw sleeve (3) that can be threaded with the socket (4); the fastening screw sleeve (3) fastens the socket (4) and the plug by being threaded with the socket (4) and the external threaded interface (1).

7. The coaxial cable connector made of cross-linked polystyrene for base station antenna according to claim 1, characterized in that: An insulating sleeve (7) is provided in the external threaded interface (1), an insulating partition in the insulating sleeve (7) is provided with a mounting through hole capable of allowing the small-diameter end of the conductor (62) to pass through, and the insulating sleeve (7) is made of cross-linked polystyrene.

8. The coaxial cable connector made of cross-linked polystyrene for base station antenna according to claim 7, characterized in that: The connecting seat (5) and the insulating sleeve (7) are both provided with an annular waist platform at one end close to the internal thread interface (2), and an annular positioning groove capable of matching with the positioning ring (811) is formed between the two annular waist platforms.

9. The coaxial cable connector made of cross-linked polystyrene for base station antenna according to claim 2, characterized in that: The connecting seat (5) is arranged between the external thread interface (1) and the internal thread interface (2) and is coaxially arranged with the external thread interface (1) and the internal thread interface (2), and the annular movable bracket (84) is slidably matched with the connecting seat (5).

10. The coaxial cable connector made of cross-linked polystyrene for base station antenna according to claim 1, characterized in that: The inclined surface of the annular protrusion (92) conflicts with the outer conical surface of the outer conical shrink sleeve (82), and the cross-sectional shape of the annular protrusion (92) is a wedge shape or a right-angled triangle.

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