Radio frequency connection assembly with stable connection

Abstract

The utility model is suitable for the technical field of radio frequency connecting devices, and provides a radio frequency connecting assembly with stable connection, which comprises a mounting sleeve, a connecting part arranged at one end of the mounting sleeve, a first thread part arranged at one end far away from the connecting part, and an end cover screw hole arranged inside the connecting part, a pin hole penetrating through the end cover screw hole and the first thread part is formed in the mounting sleeve; the end, away from the connecting part, of the mounting sleeve is sleeved with a reinforcing rotating head. The reinforcing rotating head can slide on the mounting sleeve; a second thread part is arranged at the end, close to the first thread part, of the reinforcing rotating head. The first thread portion and the second thread portion have different thread pitches. Therefore, the device can solve the problem that the existing radio frequency connection assembly is easy to loosen in the use process; and under the condition of long-term use or frequent plugging and unplugging, the situation of infirm connection cannot be caused. Maintenance and replacement frequency is reduced, and equipment damage and performance reduction are prevented.

Description

TECHNICAL FIELD

[0001] The utility model is suitable for radio frequency connecting device technical field, provide a kind of stable connection's radio frequency connecting assembly. BACKGROUND

[0002] Radio frequency connecting assembly is a kind of key assembly for connecting radio frequency signal transmission line, is widely used in wireless communication, radar, satellite communication, test equipment and other fields.Its main function is to transmit radio frequency signal from signal source to receiving end or connect to other radio frequency equipment, ensure the stable transmission and efficient conduction of signal.Radio frequency connecting assembly usually includes radio frequency connector, connector, coaxial cable and other parts, and through high-precision design and manufacturing, the electrical performance and mechanical performance of connecting point are guaranteed to meet the transmission requirements of radio frequency signal in different frequency bands.

[0003] At present, the use method of radio frequency connecting assembly is usually manually connected with equipment or signal transmission line.User connects radio frequency connector with equipment port or cable plug, then tightens the screw thread on connector to realize firm connection.The fixation of connector ensures the stability of connection by screw or buckle and prevents poor contact or signal attenuation during signal transmission.

[0004] However, the existing radio frequency connecting assembly is prone to looseness during use, especially in the case of long-term use or frequent plugging and unplugging.As radio frequency connecting assembly usually adopts threaded connection mode, the connecting piece may loosen under the action of vibration, external force or thermal expansion and contraction, resulting in loose connector and affecting the stability and quality of signal transmission.In addition, frequent plugging and unplugging operation will exacerbate the wear of connector screw, causing screw looseness or damage, which not only increases the frequency of maintenance and replacement, but also may cause equipment damage or performance degradation. UTILITY MODEL CONTENTS

[0005] In view of the above defects, the utility model aims at providing a kind of stable connection's radio frequency connecting assembly, the purpose is to solve the problems raised in the background art, the device includes installation sleeve, the one end of installation sleeve is equipped with connecting part, the one end away from the connecting part is equipped with first threaded part, the inside of connecting part is equipped with end cover screw hole, the inside of installation sleeve is equipped with insertion pin hole through end cover screw hole and first threaded part;The one end away from the connecting part of installation sleeve is equipped with reinforcing screw head;The reinforcing screw head can slide on installation sleeve;The one end of reinforcing screw head close to first threaded part is equipped with second threaded part;The thread pitch of first threaded part and second threaded part is different.

[0006] Further, the outside of installation sleeve is equipped with abutment ring, and the one end of the outside of installation sleeve close to first threaded part is equipped with reinforcing screw head.

[0007] The reinforcing screw head is internally hollow, and one end of the reinforcing screw head is provided with an annular sliding groove; the abutting ring is slidingly arranged in the annular sliding groove, that is, the annular sliding groove is arranged outside the abutting ring and the abutting ring can slide in the annular sliding groove, and the abutting ring thus plays a limiting role for the reinforcing screw head.

[0008] Further, the rotating end cover is externally provided with a thread, one end of the rotating end cover is provided with a reserved hole, the inner side wall of the reserved hole is provided with a taper portion, and the rotating end cover is provided with a through hole; the other end of the rotating end cover is fixedly connected with a hexagonal screw head, and the inner surface of the connecting portion is provided with a thread matched with the rotating end cover; the inside of the locking ring is provided with a wire insertion hole, and the outside of the locking ring is provided with a gap.

[0009] Further, the locking ring is in abutment with the locking ring and the shielding ring at two ends thereof, respectively, and the two ends of the shielding ring are in abutment with the inner part annular surface of the elastic pad and the mounting sleeve, respectively.

[0010] Further, the insertion needle is provided with a needle tip at one end thereof, the other end of the insertion needle away from the needle tip is in abutment with the shielding ring, the inside of the insertion needle is provided with an insertion needle cavity, and the insertion needle is provided with a through hole penetrating through the insertion needle cavity and the outside.

[0011] Further, the reinforcing screw head is uniformly provided with a plurality of screw head insertion holes at one end thereof away from the second thread portion, the mounting sleeve is provided with a pin portion, the inside of the pin portion is provided with a thread, and the pin portion is connected with a stud through the thread in the inside of the pin portion.

[0012] Further, the outside of the reinforcing screw head is provided with a second anti-skid groove.

[0013] Further, the outside of the mounting sleeve is provided with a first anti-skid groove.

[0014] Therefore, the utility model has the following beneficial effects:

[0015] 1. The thread connection between the second thread portion of the reinforcing screw head and the first connecting portion of the connecting seat, and the thread connection between the first thread portion of the mounting sleeve and the second connecting portion of the connecting seat, jointly constitute a double thread locking structure, greatly improving the connection stability of the radio frequency connection assembly and the equipment interface, effectively preventing loosening problems caused by factors such as vibration, external force or thermal expansion and contraction, and thus ensuring the stability and quality of radio frequency signal transmission.

[0016] 2. The thread pitches of the first thread portion and the second thread portion are different, and this innovative design makes it possible that when any part loosens, the other part will be prevented from continuing to rotate due to the different thread pitches, and will be further tightened. The self-locking mechanism effectively prevents loosening of the thread connection during long-term use or frequent plugging and unplugging, greatly prolonging the service life of the radio frequency connection assembly.

[0017] 3. By the cooperation of the rotating end cover, the locking ring, the elastic pad, the shielding ring and the pin, the reliable fixation and shielding protection of the radio frequency wire are realized. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a first perspective view of the device;

[0019] Figure 2 is a second perspective view of the device;

[0020] Figure 3 is a side view of the device;

[0021] Figure 4 is a side view of the reinforcing rotating head;

[0022] Figure 5 is a side view of the mounting sleeve;

[0023] Figure 6 is a side view of the pin;

[0024] Figure 7 is a side view of the locking ring;

[0025] Figure 8 is a structure diagram of the radio frequency wire;

[0026] Figure 9 is a side view of the connecting seat;

[0027] In the drawings: 001-connecting seat; 002-first connecting part; 003-second connecting part; 01-radio frequency wire; 02-braided layer; 03-dielectric layer; 04-core wire; 1-mounting sleeve; 100-first anti-slip groove; 101-pin part; 102-pin hole; 11-first threaded part; 12-connecting part; 121-end cover rotating hole; 13-abutting ring; 2-reinforcing rotating head; 21-rotating head insertion hole; 22-second threaded part; 23-annular sliding groove; 24-second anti-slip groove; 3-rotating end cover; 31-hexagonal rotating head; 32-cone part; 4-pin; 41-pin cavity; 42-through hole; 5-shielding ring; 6-elastic pad; 7-locking ring; 71-wire insertion hole; 72-gap. DETAILED DESCRIPTION

[0028] 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.

[0029] It should be noted that in the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] At the same time, in the description of the utility model, unless otherwise specified and limited, the terms "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below with reference to the drawings. It should be understood that the specific embodiments described herein are only used to explain the utility model and not to limit the utility model.

[0032] Referring to Figures 1-9 The utility model aims at providing a stable connection's radio frequency connection assembly, including installation sleeve 1, one end of installation sleeve 1 is equipped with connecting portion 12, the end away from connecting portion 12 is equipped with first threaded portion 11, and first threaded portion 11 is equipped with internal thread inside. The inside of connecting portion 12 is equipped with end cap screw hole 121, and the inside of installation sleeve 1 is equipped with needle hole 102 through end cap screw hole 121 and first threaded portion 11.

[0033] The outside of installation sleeve 1 is equipped with abutment ring 13, and abutment ring 13 is arranged at one end close to first threaded portion 11, and abutment ring 13 is integrally connected with installation sleeve 1. The outside of installation sleeve 1 is equipped with reinforcing screw head 2 at one end close to first threaded portion 11.

[0034] The inside of reinforcing screw head 2 is hollow, and one end of the inside of reinforcing screw head 2 is equipped with annular sliding groove 23, and abutment ring 13 is slidingly arranged in the inside of annular sliding groove 23, that is, annular sliding groove 23 is arranged on the outside of abutment ring 13, and abutment ring 13 can slide in the inside of annular sliding groove 23, and abutment ring 13 thus plays a limiting role for reinforcing screw head.

[0035] The reinforcing screw head 2 is provided with a second threaded part 22 at one end close to the first threaded part 11, i.e. the second threaded part 22 is provided at one end of the reinforcing screw head 2 away from the annular sliding groove 23.

[0036] The device can be installed outside the radio frequency wire 01 through a fixing mechanism, i.e. the staff can install the device on the radio frequency wire 01 through simple processing of the radio frequency wire 01 and through the fixing mechanism matched with the device, and the specific method is as follows:

[0037] The radio frequency wire is a multi-layer core-spun yarn, including an inner core wire 04, and the outer layer of the core wire 04 is successively wrapped from inside to outside with a dielectric layer 03, a braided layer 02 and an outer skin layer. When processing, the staff can use wire strippers to cut off the outer skin layer, and the braided wire will be rolled back after being cut off to cover a section of the outermost outer skin layer, at which time the wire strippers are used again to cut off the dielectric layer 03 to expose the core wire 04 outside, completing the pre-installation processing of the radio frequency wire 01.

[0038] The device includes a matched rotating end cover 3, a locking ring 7, an elastic pad 6, a shielding ring 5 and a pin 4.

[0039] The rotating end cover 3 can be detachably connected with the locking ring 7 and the mounting sleeve 1 in cooperation; on the one hand, the radio frequency wire 01 is locked, and on the other hand, the locked radio frequency wire 01 is firmly connected with the mounting sleeve 1. Specifically:

[0040] The rotating end cover 3 includes a thread provided on the outside, one end of the rotating end cover 3 is provided with a reserved hole, and the rotating end cover 3 is provided with a through hole through which the radio frequency wire 01 can pass. The inner side wall of the reserved hole is provided with a taper part 32, and the other end of the rotating end cover 3 is fixedly connected with a hexagonal screw head 31. The inner surface of the connecting part 12 is provided with a thread matched with the rotating end cover 3. The inside of the locking ring 7 is provided with a wire insertion hole 71, and the outside of the locking ring 7 is provided with a gap 72. The processed radio frequency wire 01 can be inserted into the inside of the wire insertion hole 71 with a little force. When installing, the operator first passes the radio frequency wire 01 through the rotating end cover 3, and then inserts the end of the radio frequency wire 01 processed into the wire insertion hole 71 of the locking ring 7. Since the locking ring 7 enters the mounting sleeve 1, one end of the locking ring 7 is abutted by the mounting sleeve 1, and the other end is abutted by the taper part 32 to push inward, so that the gap 72 is reduced, the radio frequency wire 01 is clamped, and reliable fixation is achieved.

[0041] The elastic pad 6 and the shielding ring 5 respectively play the roles of further fixation and shielding of external interference signals. When installing, the two ends of the locking ring 7 are respectively abutted by the locking ring 7 and the shielding ring 5, and one end of the shielding ring 5 is abutted by the elastic pad 6, and the other end is abutted by the inner part of the ring surface of the mounting sleeve 1.

[0042] One end of the pin 4 is provided with a needle tip, the pin 4 can be installed outside the core wire 04, and the end of the pin 4 away from the needle tip abuts against the shielding ring 5, the pin 4 is provided with a mounting surface abutting against the inner part ring surface of the mounting sleeve 1, which can ensure that the pin will not fall off; at the same time, the pin 4 is welded with the core wire 04, which enhances the connectivity while ensuring the electrical property. Specifically, the pin 4 is internally provided with a pin cavity 41, and the pin 4 is provided with a through hole 42 communicating with the outside of the pin cavity 41. During installation, the core wire 04 is first pre-added with a layer of solder, and then the pin 4 is sleeved on the outside of the core wire 04, solder is added to the inside through the through hole 42, and at the same time, the solder pen will heat and liquefy the internal solder, thereby completing the full welding of the two.

[0043] In addition, the device is matched with a connecting seat 001, that is, the device can be installed on the equipment interface with the connecting seat 001, the connecting seat 001 has an outwardly convex second connecting part 003, the outer ring surface of the second connecting part 003 is provided with threads matched with the first threaded part 11, and the first connecting part 002 is embeddedly arranged on the connecting seat 001 outside the second connecting part 003, and the inside of the first connecting part 002 is provided with threads matched with the second threaded part 22.

[0044] The thread pitches of the first threaded part 11 and the second threaded part 22 are different.

[0045] Preferably, the reinforcing screw head 2 is provided with a plurality of screw head insertion holes 21 uniformly arranged on the outer part thereof away from the second threaded part 22. The mounting sleeve 1 is provided with a pin part 101, the inside of the pin part 101 is provided with threads, and a stud can be threadedly connected in the inside of the pin part 101.

[0046] Preferably, the outer part of the reinforcing screw head 2 is provided with a second anti-skid groove 24. The second anti-skid groove 24 can provide an anti-skid effect when the staff member twists the reinforcing screw head 2.

[0047] Preferably, the outer part of the mounting sleeve 1 is provided with a first anti-skid groove 100. The second anti-skid groove 100 can provide an anti-skid effect when the staff member twists the mounting sleeve 1.

[0048] In actual use, the staff first puts on the rotating end cap 3, then inserts the radio frequency wire 01 into the locking ring 7, and then successively connects the elastic pad 6 and the shielding ring, and then welds a layer of solder on the remaining exposed part of the core wire 04, and then quickly inserts it into the pin 4, adds solder inside through the through hole 42, and at the same time the solder pen liquefies the internal solder, thereby completing the full welding of the two. Then insert the above completed end into the mounting sleeve 1, and rotate the rotating end cap 3 into the inside of the connecting part 12. Further tighten by wrench. Complete the installation of the radio frequency connection line interface device. At this time, the first threaded part 11 is screwed tightly with the second connecting part 003. Then rotate the second threaded part 22 to be screwed tightly with the first connecting part 002. Use the stud to rotate into the pin part 101, and the end of the stud inserted into the rotating head insertion hole 21.

[0049] Because the first threaded part 11 and the second threaded part 22 have different pitch. When any part is loose, the other part will prevent it from continuing to rotate, and will further tighten the other part, and at the same time the first threaded part 11 and the second threaded part 22 cannot rotate relative to each other due to the effect of the stud, so that the device cannot be detached from the connecting seat 001.

[0050] Of course, the present application can also have other various embodiments, and those skilled in the art can make various corresponding changes and modifications according to the present application without departing from the spirit and essence of the present application. However, these corresponding changes and modifications should all belong to the protection scope of the claims attached to the present application.

Claims

1. A stable connected radio frequency connection assembly, characterized in that, The installation sleeve (1) is provided with a connecting portion (12) at one end, a first threaded portion (11) at the other end away from the connecting portion (12), an end cap through hole (121) in the connecting portion (12), and a pin hole (102) in the installation sleeve (1) passing through the end cap through hole (121) and the first threaded portion (11); a reinforcing screw head (2) is sleeved on the end of the installation sleeve (1) away from the connecting portion (12); the reinforcing screw head (2) can slide on the installation sleeve (1); The end of the reinforcing screw head (2) close to the first threaded portion (11) is provided with a second threaded portion (22). The thread pitches of the first threaded portion (11) and the second threaded portion (22) are different.

2. The stably connected radio frequency connection assembly of claim 1, wherein, The outside of the installation sleeve (1) is provided with an abutting ring (13), and the end of the outside of the installation sleeve (1) close to the first threaded portion (11) is sleeved with the reinforcing screw head (2); The inside of the reinforcing screw head (2) is hollow, and the end of the inside of the reinforcing screw head (2) is provided with an annular sliding groove (23); the abutting ring (13) is slidingly arranged in the annular sliding groove (23), that is, the annular sliding groove (23) is sleeved on the outside of the abutting ring (13), and the abutting ring (13) can slide in the annular sliding groove (23), so that the abutting ring (13) plays a limiting role for the reinforcing screw head.

3. The stably connected radio frequency connection assembly of claim 1, wherein, It also includes a rotating end cap (3) and a locking ring (7); the outside of the rotating end cap (3) is provided with a thread, one end of the rotating end cap (3) is provided with a reserved hole, the inner side wall of the reserved hole is provided with a taper portion (32), and the rotating end cap (3) is provided with a through hole; the other end of the rotating end cap (3) is fixedly connected with a hexagonal screw head (31), and the inner surface of the connecting portion (12) is provided with a thread matched with the rotating end cap (3); the inside of the locking ring (7) is provided with a wire insertion hole (71), and the outside of the locking ring (7) is provided with a gap (72).

4. The stably connected radio frequency connection assembly of claim 3, wherein, It also includes an elastic pad (6) and a shielding ring (5); the two ends of the locking ring (7) are respectively abutted with the locking ring (7) and the shielding ring (5), and the two ends of the shielding ring (5) are respectively abutted with the elastic pad (6) and the inner part ring surface of the installation sleeve (1).

5. The stably connected radio frequency connection assembly of claim 4, wherein, It also includes a pin (4), one end of the pin (4) is provided with a needle tip, the end of the pin (4) away from the needle tip is abutted with the shielding ring (5), the inside of the pin (4) is provided with a pin cavity (41), and the pin (4) is provided with a through hole (42) passing through the pin cavity (41) and the outside.

6. The stably connected radio frequency connection assembly of claim 1, wherein, The end of the reinforcing screw head (2) away from the second threaded portion (22) is uniformly provided with a plurality of screw head insertion holes (21), the installation sleeve (1) is provided with a pin portion (101), the inside of the pin portion (101) is provided with a thread, and the inside of the pin portion (101) is threadedly connected with a stud.

7. The stably connected radio frequency connection assembly of claim 1, wherein, The outside of the reinforcing screw head (2) is annularly provided with a second anti-skid groove (24).

8. The stably connected radio frequency connection assembly of claim 1, wherein, The outside of the installation sleeve (1) is annularly provided with a first anti-skid groove (100).

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