CN216055343U

CN216055343U - SMA type low intermodulation high frequency radio frequency coaxial connector

Info

Publication number: CN216055343U
Application number: CN202122056482.0U
Authority: CN
Inventors: 李忠祥; 何旺旺
Original assignee: Xi'an Aoxing Communication Technology Co ltd
Current assignee: Xi'an Aoxing Communication Technology Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-03-15
Anticipated expiration: 2031-08-30

Abstract

The utility model belongs to the field of coaxial connectors, in particular to an SMA type low intermodulation high frequency radio frequency coaxial connector, which comprises a main shaft, wherein a fixed sleeve is arranged on the outer side of the main shaft, the outer wall of the main shaft is fixedly connected with the inner wall of the fixed sleeve, a fixed ring is arranged on the outer side of the fixed sleeve, the outer wall of the fixed sleeve is in threaded connection with the inner wall of the fixed sleeve, a movable sleeve is arranged on one side of the fixed sleeve and is inserted into the fixed sleeve, the outer wall of the movable sleeve is in threaded connection with the inner wall of the fixed sleeve, an auxiliary shaft is arranged on the inner side of the movable sleeve, and the top end of the auxiliary shaft is inserted onto the top end of the main shaft. The condition that the coating is consumed due to friction caused by inconsistent motion of the conductor in the shaft is avoided.

Description

SMA type low intermodulation high frequency radio frequency coaxial connector

Technical Field

The utility model belongs to the technical field of coaxial connectors, and particularly relates to an SMA type low-intermodulation high-frequency radio frequency coaxial connector.

Background

Low intermodulation connectors, which are intended to minimize passive intermodulation interference that may cause signal distortion in coaxial transmission lines, are primarily used in telecommunications applications, are made of certain non-ferromagnetic materials and are plated.

The main shaft of coaxial connector and the transmission conductor's in the countershaft top layer all electroplated protective coating to guarantee signal transmission, if the electroplating coating takes place the friction and drops and lead to connection failure easily, make low intermodulation effect inefficacy, general connector is pegged graft the back, and the conductor that drives the junction easily when one end vibration rocks, makes the looks mutual friction between two conductors, accelerates the consumption of surface electroplating coating, reduces the life of connector.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides the SMA type low-intermodulation high-frequency radio frequency coaxial connector which has the characteristics of strong stability, vibration prevention and long service life.

In order to achieve the purpose, the utility model provides the following technical scheme: the SMA type low intermodulation high-frequency radio frequency coaxial connector comprises a main shaft, wherein a fixed sleeve is arranged on the outer side of the main shaft, the outer wall of the main shaft is fixedly connected with the inner wall of the fixed sleeve, a fixed ring is arranged on the outer side of the fixed sleeve, the outer wall of the fixed sleeve is in threaded connection with the inner wall of the fixed ring, a movable sleeve is arranged on one side of the fixed sleeve and is inserted into the fixed sleeve, the outer wall of the movable sleeve is in threaded connection with the inner wall of the fixed sleeve, an auxiliary shaft is arranged on the inner side of the movable sleeve, and the top end of the auxiliary shaft is inserted into the top end of the main shaft.

As the preferable technical scheme of the SMA type low-intermodulation high-frequency radio frequency coaxial connector, one end of the main shaft is provided with a lead, and the lead is inserted into the auxiliary shaft.

As the preferable technical scheme of the SMA type low intermodulation high-frequency radio frequency coaxial connector, the fixed sleeve comprises a fixed plate, a clamping groove, a fixed cylinder wall, a first thread, a second thread and a fixed mechanism, the fixing plate is positioned at the periphery of the main shaft, the main shaft is fixedly connected with the inner wall of the fixing plate, a clamping groove is arranged on the side wall of the fixing plate, one end of the fixing ring is clamped in the clamping groove, the side wall of the fixing plate is provided with a fixing cylinder wall, the fixed cylinder wall is positioned at the inner side of the clamping groove, the fixed cylinder wall is positioned at the outer side of the main shaft, a first thread is arranged on the outer wall of one end of the fixed cylinder wall, the first thread is connected with the inner wall of the fixed ring through threads, the inner wall of one end of the fixed cylinder wall is provided with a second thread, the second thread is in threaded connection with the outer wall of the movable sleeve, a fixing mechanism is arranged on the fixed cylinder wall, and the fixing mechanism penetrates through the fixed cylinder wall.

As the preferable technical scheme of the SMA type low-intermodulation high-frequency radio frequency coaxial connector, the inner wall of the fixing ring is provided with a third thread, and the third thread is in threaded connection with the first thread.

As a preferable technical scheme of the SMA type low intermodulation high-frequency radio frequency coaxial connector, the movable sleeve comprises a movable plate, a movable cylinder wall and a fourth thread, the movable plate is positioned on the outer side of the auxiliary shaft, the movable cylinder wall is arranged on the side wall of the movable plate and fixed on the movable plate, the movable cylinder wall is positioned on the outer side of the auxiliary shaft, the movable cylinder wall is positioned on the inner side of the fixed cylinder wall, the fourth thread is arranged on the outer wall of the movable cylinder wall, and the fourth thread is in threaded connection with the third thread.

As a preferable technical scheme of the SMA type low-intermodulation high-frequency radio frequency coaxial connector, the auxiliary shaft comprises a jack and a clamping ring, the jack is positioned in the auxiliary shaft and is inserted into a wire, the clamping ring is arranged on the outer wall of the auxiliary shaft and is clamped on the inner side of the wall of the movable cylinder.

As the preferable technical scheme of the SMA type low intermodulation high-frequency radio frequency coaxial connector, the fixing mechanism comprises a stress plate, a connecting rod and a pressing plate, the stress plate is positioned on the outer side of the fixed cylinder wall and positioned on the inner side of the fixed ring, the connecting rod is fixedly arranged on the bottom surface of the stress plate, the pressing plate is fixedly arranged at the lower end of the connecting rod, and the bottom surface of the pressing plate is tightly attached to the outer wall of the main shaft.

Compared with the prior art, the utility model has the beneficial effects that:

1. when the connector is used, the fixed sleeve ring is fixed on the outer side of the main shaft, the movable sleeve is sleeved on the outer side of the auxiliary shaft, the movable sleeve is connected to the inner side of the fixed sleeve in a threaded mode, the main shaft and the auxiliary shaft are fixedly connected in an inserting mode, and when the movable sleeve is screwed into the fixed sleeve continuously, the clamping ring on the auxiliary shaft is extruded, so that connection is tight and stable;

2. when the connector is used, the first thread on the fixing sleeve and the first thread on the fixing mechanism are matched with the fixing ring, so that the third thread on the fixing ring is connected with the first thread on the fixing sleeve when the connector is used, the inner wall of the fixing ring extrudes the stress plate on the fixing mechanism during connection, pressure is generated on the lower pressure plate, the pressure plate tightly fixes the connection position of the main shaft and the auxiliary shaft, one of the main shaft or the auxiliary shaft vibrates along with the main shaft or the auxiliary shaft, and the condition that friction is generated due to inconsistent motion of conductors in the shaft to cause coating consumption is avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

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

FIG. 3 is a schematic structural view of the main shaft and the auxiliary shaft of the present invention;

FIG. 4 is a cross-sectional view of the traveling sleeve of the present invention;

FIG. 5 is a cross-sectional view of a retaining ring of the present invention;

FIG. 6 is a cross-sectional view of the traveling sleeve of the present invention;

fig. 7 is a schematic structural view of the fixing mechanism of the present invention.

In the figure: 1. a main shaft; 11. a wire; 2. fixing the sleeve; 21. a fixing plate; 22. a card slot; 23. fixing the cylinder wall; 24. a first thread; 25. a second thread; 26. a fixing mechanism; 261. a stress plate; 262. a connecting rod; 263. pressing a plate; 3. a fixing ring; 31. a third thread; 4. moving the sleeve; 41. moving the plate; 42. moving the cylinder wall; 43. a fourth thread; 5. a counter shaft; 51. a jack; 52. a snap ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-7, the present invention provides the following technical solutions: SMA type low intermodulation high frequency radio frequency coaxial connector, including main shaft 1, the outside of main shaft 1 is equipped with fixed sleeve 2, the outer wall fixed connection fixed sleeve 2's of main shaft 1 inner wall, fixed sleeve 2's the outside is equipped with solid fixed ring 3, the solid fixed ring 3's of fixed sleeve 2's outer wall threaded connection inner wall, one side of fixed sleeve 2 is equipped with movable sleeve 4, movable sleeve 4 pegs graft in fixed sleeve 2, the outer wall threaded connection fixed sleeve 2's of movable sleeve 4 inner wall, movable sleeve 4's inboard is equipped with countershaft 5, the top of countershaft 5 is pegged graft on main shaft 1's top, main shaft 1's one end is equipped with wire 11, wire 11 is pegged graft in countershaft 5.

Fixed sleeve 2 includes fixed plate 21, draw-in groove 22, fixed cylinder wall 23, screw thread 24, No. two screw threads 25 and fixed establishment 26, fixed plate 21 is located the periphery of main shaft 1, the inner wall of 1 fixed connection fixed plate 21 of main shaft, be equipped with draw-in groove 22 on the lateral wall of fixed plate 21, the one end block of solid fixed ring 3 is in draw-in groove 22, be equipped with fixed cylinder wall 23 on the lateral wall of fixed plate 21, fixed cylinder wall 23 is located the inboard of draw-in groove 22, fixed cylinder wall 23 is located the outside of main shaft 1, be equipped with screw thread 24 on the one end outer wall of fixed cylinder wall 23, the inner wall threaded connection of screw thread 24 and solid fixed ring 3, be equipped with No. two screw threads 25 on the one end inner wall of fixed cylinder wall 23, No. two screw threads 25 and the outer wall threaded connection of removal sleeve 4, be equipped with fixed establishment 26 on the fixed cylinder wall 23, fixed establishment 26 runs through fixed cylinder wall 23.

The inner wall of the fixed ring 3 is provided with a third thread 31, the third thread 31 is in threaded connection with a first thread 24, the movable sleeve 4 comprises a movable plate 41, a movable sleeve wall 42 and a fourth thread 43, the movable plate 41 is located on the outer side of the auxiliary shaft 5, the side wall of the movable plate 41 is provided with the movable sleeve wall 42, the movable sleeve wall 42 is fixed on the movable plate 41, the movable sleeve wall 42 is located on the outer side of the auxiliary shaft 5, the movable sleeve wall 42 is located on the inner side of the fixed sleeve wall 23, the outer wall of the movable sleeve wall 42 is provided with the fourth thread 43, and the fourth thread 43 is in threaded connection with the third thread 31.

The auxiliary shaft 5 comprises a jack 51 and a clamping ring 52, the jack 51 is positioned inside the auxiliary shaft 5, the jack 51 is inserted into the wire 11, the clamping ring 52 is arranged on the outer wall of the auxiliary shaft 5, the clamping ring 52 is clamped inside the movable cylinder wall 42, the fixed sleeve 2 is fixed outside the main shaft 1, the movable sleeve 4 is sleeved outside the auxiliary shaft 5, and then the movable sleeve 4 is in threaded connection with the inner side of the fixed sleeve 2, so that the main shaft 1 and the auxiliary shaft 5 are fixedly inserted, when the movable sleeve 4 is continuously screwed into the fixed sleeve 2, the clamping ring 52 on the auxiliary shaft 5 is extruded, and connection is tighter and more stable.

The fixing mechanism 26 comprises a stress plate 261, a connecting rod 262 and a pressing plate 263, wherein the stress plate 261 is located on the outer side of the fixed cylinder wall 23, the stress plate 261 is located on the inner side of the fixed ring 3, the connecting rod 262 is fixedly arranged on the bottom surface of the stress plate 261, the pressing plate 263 is fixedly arranged at the lower end of the connecting rod 262, the bottom surface of the pressing plate 263 is tightly attached to the outer wall of the main shaft 1, the third thread 31 on the fixed ring 3 is connected with the first thread 24 on the fixed sleeve 2, when the connection is performed, the inner wall of the fixed ring 3 extrudes the stress plate 261 on the fixing mechanism 26, pressure is generated on the pressing plate 263 below, the pressing plate 263 enables the pressing plate 263 to fix the connection position of the main shaft 1 and the auxiliary shaft 5 tightly, when one of the main shaft 1 or the auxiliary shaft 5 vibrates, the other shaft vibrates along with the main shaft, and the situation that friction is generated due to inconsistent motion of conductors in the shaft and the coating is consumed is avoided.

The working principle and the using process of the utility model are as follows: in the using process of the utility model, firstly, a main shaft 1 is fixed at the inner side of a fixed sleeve 2, a secondary shaft 5 is sleeved at the inner side of a movable sleeve 4, when the fixed ring 3 is inserted, the fixed ring 2 is placed between the fixed sleeve 2 and the movable sleeve 4, then the movable sleeve 4 and the secondary shaft 5 are inserted into the fixed sleeve 2 through the fixed ring 3, a fourth thread 43 and a second thread 25 are connected in a threaded manner, the secondary shaft 5 is inserted on the main shaft 1, when the movable sleeve 4 is continuously inserted into the fixed sleeve 2, a movable cylinder wall 42 continuously presses a snap ring 52 on the secondary shaft 5, so that the connection between the secondary shaft 5 and the movable sleeve 4 is more stable, the sealing performance of the connector is improved, then the fixed ring 3 is connected at the outer side of a fixed cylinder wall 23 through a third thread 31 in a threaded manner, in the process that the fixed ring 3 is continuously screwed, the inner wall of the fixed ring 3 is contacted with a stress plate 261 of a fixed mechanism 26, then, the pressure is applied to the stress plate 261 along with the screwing of the fixing ring 3, so that the pressure is transmitted to the pressure plate 263 through the connecting rod 262, the pressure plate 263 is tightly fixed at the joint of the main shaft 1 and the auxiliary shaft 5, the connection of the main shaft 1 and the auxiliary shaft 5 is more stable, when the main shaft 1 or the auxiliary shaft 5 outside the connector vibrates, the vibration force is transmitted to the joint, when a conductor in one shaft vibrates, the other shaft is simultaneously driven to vibrate, the two shafts are always vibrated on the same plane, the conductor in the shaft is prevented from being dislocated and rubbed, the consumption of a coating is prevented, and the service life is shortened.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

SMA type low intermodulation high frequency radio frequency coaxial connector, including main shaft (1), its characterized in that: the outer side of the main shaft (1) is provided with a fixed sleeve (2), the outer wall of the main shaft (1) is fixedly connected with the inner wall of the fixed sleeve (2), the outer side of the fixed sleeve (2) is provided with a fixed ring (3), the outer wall of the fixed sleeve (2) is in threaded connection with the inner wall of the fixed ring (3), one side of the fixed sleeve (2) is provided with a movable sleeve (4), the movable sleeve (4) is inserted into the fixed sleeve (2), the outer wall of the movable sleeve (4) is in threaded connection with the inner wall of the fixed sleeve (2), the inner side of the movable sleeve (4) is provided with an auxiliary shaft (5), and the top end of the auxiliary shaft (5) is inserted into the top end of the main shaft (1).
2. The SMA type low intermodulation high frequency radio frequency coaxial connector of claim 1, wherein: one end of the main shaft (1) is provided with a lead (11), and the lead (11) is inserted into the auxiliary shaft (5).
3. The SMA type low intermodulation high frequency radio frequency coaxial connector of claim 1, wherein: the fixing sleeve (2) comprises a fixing plate (21), a clamping groove (22), a fixing barrel wall (23), a first thread (24), a second thread (25) and a fixing mechanism (26), the fixing plate (21) is located on the periphery of the main shaft (1), the main shaft (1) is fixedly connected with the inner wall of the fixing plate (21), the clamping groove (22) is formed in the side wall of the fixing plate (21), one end of the fixing ring (3) is clamped in the clamping groove (22), the fixing barrel wall (23) is arranged on the side wall of the fixing plate (21), the fixing barrel wall (23) is located on the inner side of the clamping groove (22), the fixing barrel wall (23) is located on the outer side of the main shaft (1), the first thread (24) is arranged on the outer wall of one end of the fixing barrel wall (23), the first thread (24) is in threaded connection with the inner wall of the fixing ring (3), the second thread (25) is arranged on the inner wall of one end of the fixing barrel wall (23), the second thread (25) is in threaded connection with the outer wall of the movable sleeve (4), a fixing mechanism (26) is arranged on the fixed cylinder wall (23), and the fixing mechanism (26) penetrates through the fixed cylinder wall (23).
4. The SMA type low intermodulation high frequency radio frequency coaxial connector of claim 1, wherein: be equipped with No. three screw threads (31) on the inner wall of solid fixed ring (3), No. three screw threads (31) and a screw thread (24) threaded connection.
5. The SMA type low intermodulation high frequency radio frequency coaxial connector of claim 1, wherein: the movable sleeve (4) comprises a movable plate (41), a movable cylinder wall (42) and a fourth thread (43), the movable plate (41) is located on the outer side of the auxiliary shaft (5), the movable cylinder wall (42) is arranged on the side wall of the movable plate (41), the movable cylinder wall (42) is fixed on the movable plate (41), the movable cylinder wall (42) is located on the outer side of the auxiliary shaft (5), the movable cylinder wall (42) is located on the inner side of the fixed cylinder wall (23), the fourth thread (43) is arranged on the outer wall of the movable cylinder wall (42), and the fourth thread (43) is in threaded connection with the third thread (31).
6. The SMA type low intermodulation high frequency radio frequency coaxial connector of claim 1, wherein: the auxiliary shaft (5) comprises a jack (51) and a clamping ring (52), the jack (51) is located inside the auxiliary shaft (5), the jack (51) is inserted into the wire (11), the clamping ring (52) is arranged on the outer wall of the auxiliary shaft (5), and the clamping ring (52) is clamped on the inner side of the movable cylinder wall (42).
7. The SMA type low intermodulation high frequency radio frequency coaxial connector according to claim 3, wherein: fixed establishment (26) are including atress board (261), connecting rod (262) and clamp plate (263), atress board (261) is located the outside of fixed section of thick bamboo wall (23), atress board (261) is located the inboard of solid fixed ring (3), the fixed connecting rod (262) that is equipped with in bottom surface of atress board (261), the fixed clamp plate (263) that is equipped with of lower extreme of connecting rod (262), the bottom surface of clamp plate (263) is hugged closely on the outer wall of main shaft (1).