Waterproof adapter connector

Abstract

The utility model discloses a waterproof type adapter connector. The cable comprises a semi-flexible cable assembly used for connecting semi-flexible cables in series, a 1 / 2 super-flexible cable assembly used for connecting 1 / 2 super-flexible cables in series, and a connector assembly with a central conductor. The semi-flexible cable assembly is provided with a left fastening nut screwed with the left end of the connector assembly, a wire clamp arranged in the left fastening nut and a left inner sealing ring arranged on the left side of the left fastening nut. After a semi-flexible cable penetrates through the wire clamp, an inner conductor of the semi-flexible cable is connected with the center conductor. The 1 / 2 super-flexible cable assembly is provided with a right fastening nut screwed with the right end of the connector assembly, and the 1 / 2 super-flexible cable penetrates through the right fastening nut to enable an inner conductor of the 1 / 2 super-flexible cable to be connected with the central conductor; a left outer sealing ring is pressed between the left fastening nut and the connector assembly, and a right inner sealing ring is pressed between the connector assembly and the right fastening nut; a right sealing nut is screwed on the right side of the right fastening nut, and a right outer sealing ring used for sealing the 1 / 2 super-flexible cable is pressed between the right sealing nut and the right fastening nut.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cable adapter connector, especially to a waterproof adapter connector. BACKGROUND

[0002] In the prior art, semi-flexible cables are usually connected by welding, which has good electrical performance, but the welding process requires professional tools and precise operation, and is not suitable for on-site installation. At the same time, the adapter of semi-flexible cables and 1 / 2 super flexible cables usually requires the two to be made as independent cable assemblies, and then connected by male and female connectors. This method not only cannot meet the demand of on-site quick installation, but also increases the overall volume due to the complex structure, and increases the transportation cost. In addition, the existing adapter method often cannot achieve good sealing effect in outdoor or humid environment, and there is a risk of signal transmission performance degradation or equipment damage. SUMMARY

[0003] The utility model wants to solve the technical problem of providing a waterproof adapter connector with good waterproof performance, convenient on-site installation and low transportation cost.

[0004] In order to solve the above technical problems, the waterproof adapter connector of the utility model comprises a semi-flexible cable assembly for connecting semi-flexible cables in series, a 1 / 2 super flexible cable assembly for connecting 1 / 2 super flexible cables in series, and a connector assembly with a center conductor. The semi-flexible cable assembly has a left fastening nut screwed with the left end of the connector assembly, a wire clamp arranged in the left fastening nut, and a left inner sealing ring arranged on the left side of the left fastening nut. After the semi-flexible cable passes through the wire clamp, the inner conductor of the semi-flexible cable is connected with the center conductor, and after the connection, the wire clamp tightly holds the cable shielding layer, and at the same time, the left inner sealing ring tightly seals the outer skin of the semi-flexible cable. The 1 / 2 super flexible cable assembly has a right fastening nut screwed with the right end of the connector assembly. After the 1 / 2 super flexible cable passes through the right fastening nut, the inner conductor of the 1 / 2 super flexible cable is connected with the center conductor, and after the connection, the corrugated pipe layer of the 1 / 2 super flexible cable is extruded into the inner hole of the right fastening nut, so as to tightly press the 1 / 2 super flexible cable. The left outer sealing ring is pressed between the left fastening nut and the connector assembly, and the right inner sealing ring is pressed between the connector assembly and the right fastening nut. The right sealing nut is screwed with the right side of the right fastening nut, and the right outer sealing ring for sealing the 1 / 2 super flexible cable is pressed between the two.

[0005] The connector assembly further comprises a main shell and an insulator isolated between the main shell and the center conductor.

[0006] The end cover is arranged in the main shell and pressed on the right side end of the center conductor, and the compression ring is pressed between the end cover and the right fastening nut.

[0007] The right end of the compression ring is provided with a compression ring bevel for extruding the corrugated tube layer into the inner hole of the right fastening nut.

[0008] The center conductor is provided with a barb for piercing the insulator and a knurled surface for preventing rotation in the insulator.

[0009] The left outer sealing ring is sleeved on the left end of the main shell and can be compressed by tightening the left fastening nut.

[0010] The right inner sealing ring is sleeved on the left end of the right fastening nut and can be compressed on the right end of the main shell when the right fastening nut is tightened.

[0011] The right end of the main shell is provided with an annular surface for compressing the right inner sealing ring.

[0012] The inner hole of the left fastening nut is provided with a bevel for tightening the wire clamp.

[0013] The inner hole of the wire clamp is processed with a thread mark.

[0014] The utility model discloses the advantages of:

[0015] (1) through the multiple sealing design of left inner sealing ring, left outer sealing ring, right inner sealing ring and right outer sealing ring, the waterproof performance of the connector is effectively improved, water can be prevented from penetrating into the inside, the stability of signal transmission and the reliability of equipment are ensured, and the utility model is suitable for the use scene in outdoor or bad environment.

[0016] (2) during the installation of the right fastening nut and the right sealing nut, the left inner sealing ring is tightly extruded on the cable outer skin to play a good waterproof role, at the same time, during the screwing of the connector assembly and the right fastening nut, the corrugated tube layer of the cable is extruded into the inner hole of the right fastening nut through the compression ring bevel, so that the cable is fastened and cannot rotate and move, similarly, after the semi-flexible cable of the other end is stripped, the left fastening nut and the wire clamp are installed into the correct position in turn, the inner conductor of the semi-flexible cable is connected with the center conductor, at the same time, the shielding layer of the cable is also clamped by the wire clamp, so that the fastness and coaxiality are doubly ensured, finally, the main shell is screwed with the left fastening nut, during the screwing, the wire clamp is tightened through the bevel in the inner hole of the left fastening nut to clamp the outer skin, and three clamping is used to ensure the reliable connection of the cable and the connector assembly.

[0017] (3) the left fastening nut and the right fastening nut can be directly screwed with the main shell, without welding operation, the dependence on professional tools and technology is reduced, and the user can conveniently install and debug on site.

[0018] (4) The semi-flexible cable and the 1 / 2 super flexible cable are independently designed as cable assemblies, which are separated from the connector assembly, and combined with the stepped groove of the main shell to facilitate disassembly and assembly, while effectively reducing the overall volume, reducing transportation cost, and improving the convenience of storage and carrying.

[0019] (5) The whole structure is reasonably designed, which can ensure the smooth switching of different cables and the mechanical and performance requirements of switching, because it is loaded on the same shell assembly, which plays a very good role in signal transmission, can have better electrical performance, and can reduce the cost, and provides a good guarantee for the switching of different cables, and will have more application scenarios in the future. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is an assembly diagram of the waterproof switching connector of the utility model;

[0021] Figure 2 It is a structure diagram of the semi-flexible cable assembly in the waterproof switching connector of the utility model;

[0022] Figure 3 It is a structure diagram of the 1 / 2 super flexible cable assembly in the waterproof switching connector of the utility model;

[0023] Figure 4 It is a structure diagram of the connector assembly in the waterproof switching connector of the utility model;

[0024] Figure 5 It is an exploded structure diagram of the waterproof switching connector of the utility model. DETAILED DESCRIPTION

[0025] The waterproof switching connector of the utility model will be further described in detail below in combination with the drawings and specific embodiments. (For the convenience of description, the left end and the right end are described according to the figure)

[0026] As shown in Figure 1 , Figure 5 The waterproof switching connector of the utility model comprises a semi-flexible cable assembly 16 for serially connecting semi-flexible cables, a 1 / 2 super flexible cable assembly 17 for serially connecting 1 / 2 super flexible cables, and a connector assembly 15 connected between the semi-flexible cable assembly 16 and the 1 / 2 super flexible cable assembly 17; as shown in Figure 4As shown, the connector assembly 15 includes a main housing 6, a center conductor 8, and an insulator 7 that is isolated between the center conductor 8 and the main housing; an end cap 9 is pressed onto the right end of the center conductor 8, and a pressure ring 10 for positioning is pressed between the end cap 9 and the right fastening nut 12; the right end of the pressure ring 10 is provided with a pressure ring bevel for pressing the bellows layer into the inner hole of the right fastening nut 12; the center conductor 8 is provided with barbs 18 for piercing the insulator 7 and knurling 19 for preventing rotation in the insulator 7, and the excessive tight fit of the barbs and knurling can prevent axial displacement and radial rotation.

[0027] like Figure 2 As shown, the inner conductors of the semi-flexible cable and the 1 / 2 ultra-flexible cable are connected to the center conductor 8; the semi-flexible cable assembly 16 has a left fastening nut 3 that is screwed to the left end of the connector assembly 15, a wire clamp 2 set inside the left fastening nut, and a left inner sealing ring 1 placed on the left side of the left fastening nut. The left side of the inner hole of the left fastening nut 3 is provided with an annular groove, and the left inner sealing ring 1 is placed in the annular groove; after the semi-flexible cable passes through the wire clamp 2, its inner conductor is connected to the center conductor 8, and after the connection, the wire clamp 2 hugs the cable shielding layer, while the left inner sealing ring 1 presses and seals the outer sheath of the semi-flexible cable. The inner hole of the wire clamp 2 is machined with thread marks; the left outer sealing ring 4 is fitted on the left side of the main housing 6 and can be pressed by tightening the left fastening nut 3.

[0028] like Figure 3 As shown, the 1 / 2 ultra-flexible cable assembly 17 has a right fastening nut 12 that screws onto the right end of the connector assembly 15. After the 1 / 2 ultra-flexible cable passes through the right fastening nut 12, its inner conductor connects with the center conductor 8. After connection, the corrugated layer of the 1 / 2 ultra-flexible cable is squeezed into the inner hole of the right fastening nut 12, thereby compressing the 1 / 2 ultra-flexible cable. A left outer sealing ring 4 is pressed between the left fastening nut 3 and the connector assembly 15, and a right inner sealing ring 11 is pressed between the connector assembly 15 and the right fastening nut 12. The inner side of the right end of the main housing 6 is provided with a clamping cable corrugated layer. A conical annular surface is used to press the right inner sealing ring 11; a right sealing nut 14 is screwed onto the right side of the right fastening nut 12 and a right outer sealing ring 13 for sealing the 1 / 2 ultra-flexible cable is pressed between the two, and the right outer sealing ring 13 is placed in the inner cavity of the right sealing nut 14; the left outer sealing ring 4 is fitted on the left side of the main housing 6 and can be pressed by tightening the left fastening nut 3; the right inner sealing ring 11 is fitted on the left side of the right fastening nut 12 and can be pressed against the right side of the main housing 6 when the right fastening nut is tightened.

[0029] Installation process: 1 / 2 super flexible cable according to the size of the stripping requirements, right after the fastening nut 12 and right sealing nut 14 to the cable in the right position, right fastening nut 12 and right sealing nut 14 to tighten the formation of the assembly, during which the right inner sealing ring 11 tightly pressed on the cable outer protective layer to play a good waterproof effect, then the cable conductor inserted into the center conductor 8 slot hole, find the center after the main shell 6 and right fastening nut 12 are connected, in the process of tightening by the main shell in the ring inclined surface to the cable bellow layer extruded into the right fastening nut 12 inner hole, so as to fasten the cable, can't turn and move. Similarly, the other end of the semi flexible cable stripping, in turn, the left fastening nut 3 and wire clamp 2 into the correct position after the semi flexible cable conductor inserted into the center conductor 8 slot hole, in this action at the same time, the cable shield layer is also clamped by wire clamp 2, so as to double guarantee its firmness and coaxiality, finally through the main shell 6 and left fastening nut 3 of the screw connection, in the process of screw connection, through the inclined surface in the left fastening nut 3 inner hole to tighten the wire clamp 2 so as to clamp the outer skin, there are three clamping to ensure the reliable connection of the cable and connector, and the inside and outside have sealing ring to ensure its waterproof effect.

[0030] Through the test, the performance parameters of the product in the current use frequency band are 0-4200MHz, voltage standing wave ratio ≤1.15, even in the future if the use frequency band is expanded to 6000MHz, the voltage standing wave ratio can be controlled within 1.20, at the same time, PIM reaches above-117dBm. This structure can not only ensure the smooth switching of different cables, but also ensure the mechanical and performance requirements of switching, because it is loaded on the same shell assembly, which plays a very good role in signal transmission, which can not only have good electrical performance, but also can reduce the cost, and provides a good guarantee for the switching of different cables, and there will be more application scenarios in the future.

Claims

1. A waterproof adapter connector characterized by: The connector assembly (15) further comprises a main shell (6) and an insulator (7) isolated between the main shell (6) and the center conductor (8).

2. The waterproof adapter connector according to claim 1, characterized by: The main shell (6) is provided with an end cover (9) pressed against the right end of the center conductor (8), and the end cover (9) and the right fastening nut (12) are pressed with a compression ring (10).

3. The waterproof adapter connector according to claim 2, characterized by: The right end of the compression ring (10) is provided with a compression ring bevel for extruding the corrugated tube layer into the inner hole of the right fastening nut (12).

4. The waterproof adapter connector according to claim 3, characterized by: The center conductor (8) is provided with a barb (18) for piercing the insulator (7) and a knurled surface (19) for preventing rotation in the insulator (7).

5. The waterproof adapter connector according to claim 2, 3 or 4, characterized in that: The left outer sealing ring (4) is sleeved on the left end of the main shell (6) and can be compressed by tightening the left fastening nut (3).

6. The waterproof adapter connector according to claim 5, wherein: The right inner sealing ring (11) is sleeved on the left end of the right fastening nut (12) and can be compressed on the right end of the main shell (6) when the right fastening nut is tightened.

7. The waterproof adapter connector according to claim 2, 3, 4 or 6, characterized by: The right end of the main shell (6) is provided with an annular surface for compressing the right inner sealing ring (11).

8. The waterproof adapter connector according to claim 7, characterized by: The inner hole of the left fastening nut (3) is provided with a bevel for tightening the wire clamp (2).

9. The waterproof adapter connector according to claim 8, wherein: The inner hole of the wire clamp (2) is processed with a thread mark.

10. The waterproof adapter connector according to claim 1, characterized by: ​

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