CN212392451U

CN212392451U - Quick-insertion self-locking radio frequency coaxial connector

Info

Publication number: CN212392451U
Application number: CN202021359624.XU
Authority: CN
Inventors: 茹锦文; 许建涛
Original assignee: Xi'an Wenxinruikai Electronic Technology Co ltd; Shaanxi Yineng Electronic Technology Co ltd
Current assignee: Xi'an Wenxinruikai Electronic Technology Co ltd; Shaanxi Yineng Electronic Technology Co ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-01-22
Anticipated expiration: 2030-07-13

Abstract

The utility model discloses a quick-plug self-locking radio frequency coaxial connector, which relates to the field of radio frequency coaxial connectors and comprises a shell with a circular structure and a hollow inner part, wherein the inner wall of the shell is fixedly connected with an inner conductor through an insulating medium, the end part of the inner conductor is fixedly connected with a contact head, one end of the contact head is positioned outside the shell, and the other end of the contact head is fixedly connected with the inner wall of the shell; the end surface of the shell is uniformly connected with a plurality of guide pillars, a sliding block and an inclined block are sequentially and movably sleeved on the guide pillars, and a spring is sleeved on the guide pillars between the sliding block and the end surface of the shell; one end of the guide post, far away from the shell, is fixedly connected with a fixed block, the sliding block and the fixed block are both of an internal hollow structure, and the inclined block can vertically move along the radial direction of the guide post; the shell is sleeved with an unlocking sleeve, and the unlocking sleeve is located between the fixed block and the shell. The utility model discloses can compatible most connector, can realize inserting the auto-lock soon.

Description

Quick-insertion self-locking radio frequency coaxial connector

Technical Field

The utility model relates to a radio frequency coaxial connector technical field especially relates to a insert self-locking radio frequency coaxial connector soon.

Background

A radio frequency coaxial connector is generally considered to be a component attached to a cable or mounted on an instrument as a component to which a transmission line is electrically connected or separated. It belongs to a mechatronic product. In brief, it mainly acts as a bridge.

RF connectors have a shorter history of development compared to other electronic components. UHF connectors appeared in 1930 as the earliest RF connectors. During the second world war, due to the urgent needs of war, with the development of radar, radio and microwave communication, medium-sized series such as N, C, BNC, TNC and the like are generated, miniaturized products such as SMA, SMB, SMC and the like appear in 1958, the United states military standard MIL-C-39012 general Specification of radio frequency coaxial connectors is established in 1964, and then the development of RF connectors is in the direction of standardization, serialization and universalization.

With the continuous update of weapon assembly, the connector in threaded connection mode is gradually replaced by the electric connector that is plugged and unplugged quickly. In the field of radio frequency coaxial connectors, this is also fully demonstrated by the growing mass use of SMP, SBMA, and the like. And is able to accommodate all or most of the connectors, making it very little or none of the quick-plug self-locking.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fast insert from locking radio frequency coaxial connector to solve the problem that above-mentioned prior art exists, make it can compatible most connector, can realize inserting the auto-lock soon.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides a quick-plug self-locking radio frequency coaxial connector, which comprises a shell with a circular structure and a hollow inner part, wherein the inner wall of the shell is fixedly connected with an inner conductor through an insulating medium, the end part of the inner conductor is fixedly connected with a contact head, one end of the contact head is positioned outside the shell, and the other end of the contact head is fixedly connected with the inner wall of the shell; the end surface of the shell is uniformly connected with a plurality of guide pillars, a sliding block and an inclined block are sequentially and movably sleeved on the guide pillars, and a spring is sleeved on the guide pillars between the sliding block and the end surface of the shell; one end of the guide post, far away from the shell, is fixedly connected with a fixed block, the sliding block and the fixed block are both of an internal hollow structure, and the inclined block can vertically move along the radial direction of the guide post; the shell is sleeved with an unlocking sleeve, and the unlocking sleeve is located between the fixed block and the shell.

Optionally, the cross section of the sliding block is of a circular structure, and the inside of the sliding block is hollow; the end face of the sliding block is provided with a plurality of through holes, and the sliding block is movably inserted on the guide pillar through the through holes.

Optionally, the outer diameter of the slider close to the spring end is larger than the outer diameter of the slider far away from the spring end, and the outer diameter of the slider close to the spring end is the same as the outer diameter of the fixed block; an unlocking step is fixedly arranged on the inner wall of the unlocking sleeve and is arranged on the outer wall of the sliding block far away from the spring end in a sliding manner; the end face of the slider, which is far away from one end of the spring, is of an inclined surface structure which is inclined inwards.

Optionally, the cross section of the swash block is of a fan-shaped annular structure, and the plurality of swash blocks are uniformly distributed around the center of the same virtual circle; a strip-shaped hole is formed in the end face of the inclined block, the inclined block is movably inserted on the guide pillar through the strip-shaped hole, and the strip-shaped hole can drive the inclined block to move up and down along the radial direction of the guide pillar; the end surfaces of two ends of the inclined block are respectively a first inclined surface and a second inclined surface which incline outwards, the first inclined surface is matched with the end surface of one end of the fixed block, and the second inclined surface is matched with the inclined surface structure of the slide block far away from the spring end; the inner wall of the inclined block is provided with a convex block extending towards the center of the inclined block, one end, close to the fixed block, of the convex block is provided with a smooth third inclined surface, one end, close to the sliding block, of the convex block is provided with a smooth fourth inclined surface, the third inclined surface and the fourth inclined surface are in smooth connection at the top of the convex block, and the gradient of the third inclined surface is smaller than that of the fourth inclined surface.

Optionally, the inner wall of the housing and the insulating medium are fixed by press fitting, barb, potting, and the like.

Optionally, the end face of one end of the housing is uniformly provided with a plurality of guide pillar holes, and one end of each guide pillar is fixedly inserted into the corresponding guide pillar hole.

The utility model discloses for prior art gain following technological effect:

the utility model discloses holistic structural configuration has realized miniaturized design. The compatibility of the existing connector is higher, and meanwhile, the operation steps are fewer, so that the risk of no operation is reduced. The existing traditional thread locking connector such as SMA, TNC and N type can be replaced. And on the basis of the existing quick-plug self-locking connectors such as QMA, YMA and the like. The interchange is perfectly realized. The utility model discloses the structural style that adopts does not need unnecessary action can accomplish the blind auto-lock of looking for inserting the in-process. Meanwhile, the method is suitable for BMA and SBMA type blind-inspection structural joints.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a main sectional view of the quick-insertion self-locking radio frequency coaxial connector of the present invention;

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

FIG. 3 is a schematic view of the end face of the slider of the present invention;

FIG. 4 is a partial cross-sectional view of the swash block of the present invention;

FIG. 5 is a schematic end view of the swash block of the present invention;

FIG. 6 is a schematic view of the present invention connected to a threaded joint;

fig. 7 is a schematic view of the connection between the present invention and the quick lock joint;

wherein, 1 is an inner conductor, 2 is an insulating medium, 3 is a shell, 4 is a contact, 5 is a fixed block, 6 is an inclined block, 61 is a first inclined plane, 62 is a second inclined plane, 63 is a third inclined plane, 64 is a fourth inclined plane, 65 is a strip-shaped hole, 7 is a sliding block, 71 is a through hole, 8 is a spring, 9 is a guide post, 10 is an unlocking sleeve, and 11 is an unlocking step.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

The utility model provides a quick-plug self-locking radio frequency coaxial connector, which is divided into a radio frequency signal transmission part and a quick-plug self-locking mechanism part as shown in figures 1-7; the device comprises an inner conductor 1, an insulating medium 2, a shell 3, a contact 4, a fixed block 5, an inclined block 6, a sliding block 7, a spring 8, a guide post 9 and an unlocking sleeve 10.

The radio frequency signal transmission part, inner conductor 1, insulating medium 2 and shell 3 adopt current radio frequency coaxial connector technique to fix, and the fixed mode is "press fit", "barb", "embedment" etc.. The contact 4 and the shell 3 are fixed in an interference fit 'press fit' mode. The design is aimed at ensuring reliable connection for radio frequency signal transmission.

And 3 or 6 guide post holes are formed in the shell 3 according to the actual use environment requirement.

The guide post 9 and the shell 3 are fixed in an interference fit 'press fit' mode. The guide posts 9 are respectively sleeved with springs 8. A slider 7 is arranged at the front section of the spring 8. The slider 7 is provided with 3 or 6 through holes 71 which are through holes and are designed to allow the slider 7 to move back and forth in the horizontal direction along the guide posts 9. The front section of the guide post 9 is provided with an inclined block 6. The inclined block 6 is provided with 3 or 6 strip-shaped holes 65, and the inclined block 6 is respectively provided with a first inclined surface 61, a second inclined surface 62, a third inclined surface 63 and a fourth inclined surface 64, wherein the total number of the inclined surfaces is 4. The first inclined surface 61 and the second inclined surface 62 are designed such that the inclined block 6 can move up and down along the guide post 9 along the vertical direction following the strip-shaped hole 65, and the second inclined surface 62 can provide a horizontal backward force to the slider 7 to compress the spring 8. The angle of the third inclined surface 63 is smaller than that of the fourth inclined surface 64, and the design aim is that the small angle of the third inclined surface 63 can reduce the insertion force and play a certain positioning and aligning role in the insertion process. The fourth inclined surface 64 has a larger angle, and the design purpose of the self-locking mechanism is that after the self-locking mechanism is inserted, a high pull-out force is provided and the friction force provided by the inclined surface of the fixed block is combined, so that the self-locking function after the self-locking mechanism is inserted is realized.

Specifically, the fixed block 5 is provided with 3 or 6 interference holes. The specific design is similar to the slider 7. Carry out "pressure through interference fit and 9 tip of guide pillar and press fit", perhaps combine actual use environment to weld other modes such as fix, its design aim at plug main part is accomplishing the back of inserting to close, provides a perpendicular ascending power to sloping block 6, guarantees the reliability of locking.

Because the insertion force of socket is in the process of inserting and closing, act on the utility model discloses on the third inclined plane 63 that sets up on the sloping block 6, certain extrusion force has been produced to third inclined plane 63, and when this force was used in sloping block 6, because the bar hole 65 that sets up in advance can lead to the perpendicular downstream of sloping block 6, the via hole that sets up on second inclined plane 62 and the slider 7 on the sloping block 6 simultaneously produced a strength that the level was backward and promoted the spring 8 compression through the effect of guide pillar 9. After the socket is inserted and closed, the socket passes through the third inclined surface 63, the extrusion force disappears, the spring 8 releases the force to enable the sliding block 7 and the inclined block 6 to reset, and the fourth inclined surface 64 is clamped with the socket to complete self-locking.

The utility model discloses when locking state, because the inclined plane that sets up on fourth inclined plane 64 on sloping block 6 and fixed block 5 becomes the reaction each other. And the friction force of the two inclined surfaces locking the pulling-out force is larger gradually. Thereby completing the self-locking.

The utility model discloses on still be provided with the unlocking sleeve 10, be provided with unblock step 11 on the unlocking sleeve 10. The unlocking step 11 is matched with the outside of the sliding block 7 for limiting and separating. When needs separation, backward pulling unlocking sleeve 10, unlocking step 11 of unlocking sleeve 10 drives slider 7 and moves backward at guide pillar 9 upper level to compression spring 8 makes sloping block 6 be in free state this moment, because the dual function of gravity and separating force, the separation is accomplished to the downward motion of sloping block 6, and the unlocking sleeve 10 is released to the separation back, spring 8 release pressure, the utility model discloses locking structure resets. The utility model discloses mechanism form can insert with the socket of multiple type connector and close to accomplish the auto-lock, as shown in figure 6 and figure 7, figure 6 does the utility model discloses with screwed joint connection schematic diagram, figure 7 does the utility model discloses with quick-lock articulate schematic diagram.

The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. The utility model provides a quick-plug self-locking radio frequency coaxial connector which characterized in that: the cable connector comprises a shell with a circular structure in cross section and a hollow interior, wherein the inner wall of the shell is fixedly connected with an inner conductor through an insulating medium, the end part of the inner conductor is fixedly connected with a contact head, one end of the contact head is positioned outside the shell, and the other end of the contact head is fixedly connected with the inner wall of the shell; the end surface of the shell is uniformly connected with a plurality of guide pillars, a sliding block and an inclined block are sequentially and movably sleeved on the guide pillars, and a spring is sleeved on the guide pillars between the sliding block and the end surface of the shell; one end of the guide post, far away from the shell, is fixedly connected with a fixed block, the sliding block and the fixed block are both of an internal hollow structure, and the inclined block can vertically move along the radial direction of the guide post; the shell is sleeved with an unlocking sleeve, and the unlocking sleeve is located between the fixed block and the shell.

2. The quick-insert self-locking radio frequency coaxial connector according to claim 1, wherein: the section of the sliding block is of a circular structure, and the inside of the sliding block is hollow; the end face of the sliding block is provided with a plurality of through holes, and the sliding block is movably inserted on the guide pillar through the through holes.

3. The quick-insert self-locking radio frequency coaxial connector according to claim 2, wherein: the outer diameter of the sliding block close to the spring end is larger than the outer diameter of the sliding block far away from the spring end, and the outer diameter of the sliding block close to the spring end is the same as the outer diameter of the fixed block; an unlocking step is fixedly arranged on the inner wall of the unlocking sleeve and is arranged on the outer wall of the sliding block far away from the spring end in a sliding manner; the end face of the slider, which is far away from one end of the spring, is of an inclined surface structure which is inclined inwards.

4. The quick-connect, self-locking radio frequency coaxial connector of claim 3, wherein: the cross section of the inclined block is of a fan-shaped annular structure, and a plurality of inclined blocks are uniformly distributed around the center of a virtual circle; a strip-shaped hole is formed in the end face of the inclined block, the inclined block is movably inserted on the guide pillar through the strip-shaped hole, and the strip-shaped hole can drive the inclined block to move up and down along the radial direction of the guide pillar; the end surfaces of two ends of the inclined block are respectively a first inclined surface and a second inclined surface which incline outwards, the first inclined surface is matched with the end surface of one end of the fixed block, and the second inclined surface is matched with the inclined surface structure of the slide block far away from the spring end; the inner wall of the inclined block is provided with a convex block extending towards the center of the inclined block, one end, close to the fixed block, of the convex block is provided with a smooth third inclined surface, one end, close to the sliding block, of the convex block is provided with a smooth fourth inclined surface, the third inclined surface and the fourth inclined surface are in smooth connection at the top of the convex block, and the gradient of the third inclined surface is smaller than that of the fourth inclined surface.

5. The quick-insert self-locking radio frequency coaxial connector according to claim 1, wherein: the inner wall of the shell and the insulating medium are fixed in a press fit mode, a barb mode and an embedding mode.

6. The quick-insert self-locking radio frequency coaxial connector according to claim 1, wherein: the end face of one end of the shell is uniformly provided with a plurality of guide post holes, and one end of each guide post is fixedly inserted into the corresponding guide post hole.