阅读说明：本技术 一种快插自锁紧射频同轴连接器 (Quick-insertion self-locking radio frequency coaxial connector ) 是由 茹锦文 许建涛 于 2020-07-13 设计创作，主要内容包括：本发明公开一种快插自锁紧射频同轴连接器,涉及射频同轴连接器领域,包括截面为圆形结构且内部中空的外壳,所述外壳内壁通过绝缘介质固定连接有内导体,所述内导体端部固定连接有接触头,所述接触头一端位于所述外壳外部,另一端与所述外壳内壁固定连接；所述外壳的端面上均匀连接有多个导柱,所述导柱上依次活动套设有滑块和斜块,位于所述滑块和所述外壳端面之间的所述导柱上套设有弹簧；所述导柱远离所述外壳的一端固定连接有固定块,所述滑块和固定块均为内部中空结构,且所述斜块能够沿所述导柱的径向垂直移动；所述外壳上套设有解锁套,所述解锁套位于所述固定块和所述外壳之间。本发明可以兼容大部分连接器,能够实现快插自锁。(The invention discloses a quick-insertion self-locking radio frequency coaxial connector, which relates to the field of radio frequency coaxial connectors and 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. The invention can be compatible with most connectors and can realize quick insertion and self locking.)

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 shell inner wall with the fixed mode of insulating medium is for pressing fit, barb, embedment etc..

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.

Technical Field

The invention relates to the technical field of radio frequency coaxial connectors, in particular to a quick-insertion self-locking radio frequency coaxial connector.

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.

Disclosure of Invention

The invention aims to provide a quick-insertion self-locking radio frequency coaxial connector, which solves the problems in the prior art, can be compatible with most connectors and can realize quick-insertion self-locking.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides a quick-insertion self-locking radio frequency coaxial connector which 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.

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.

Compared with the prior art, the invention has the following technical effects:

the overall structural layout of the invention realizes a 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 invention adopts a structural form, and blind checking and self-locking can be completed without redundant actions in the insertion 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 needed 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 it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a front cross-sectional view of a quick-connect, self-locking RF 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 end view of a slider according to 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 in connection with a threaded joint;

FIG. 7 is a schematic view of the present invention in connection with a quick lock coupling;

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 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.

The invention aims to provide a quick-insertion self-locking radio frequency coaxial connector, which solves the problems in the prior art, can be compatible with most connectors and can realize quick-insertion self-locking.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

The invention 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.

During the insertion process, due to the insertion force of the socket, the third inclined surface 63 arranged on the inclined block 6 of the invention acts on, and generates a certain extrusion force to the third inclined surface 63, and when the force acts on the inclined block 6, the inclined block 6 can vertically move downwards due to the strip-shaped hole 65 arranged in advance, and simultaneously the second inclined surface 62 arranged on the inclined block 6 and the through hole arranged on the sliding block 7 generate a horizontal backward force to push the spring 8 to compress through the action of the guide post 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.

In the locking state of the invention, the fourth inclined surface 64 arranged on the inclined block 6 and the inclined surface arranged on the fixed block 5 react with 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 invention is also provided with an unlocking sleeve 10, and the unlocking sleeve 10 is provided with an unlocking step 11. The unlocking step 11 is matched with the outside of the sliding block 7 for limiting and separating. When the separation is needed, the unlocking sleeve 10 is pulled backwards, the unlocking step 11 of the unlocking sleeve 10 drives the sliding block 7 to horizontally move backwards on the guide post 9, so that the spring 8 is compressed, the inclined block 6 is in a free state at the moment, the inclined block 6 moves downwards to complete the separation due to the double effects of gravity and separation force, the unlocking sleeve 10 is released after the separation, the spring 8 releases pressure, and the locking structure is reset. The mechanism of the invention can be inserted into and combined with sockets of various types of connectors and can complete self-locking, as shown in fig. 6 and 7, fig. 6 is a schematic view of the invention connected with a threaded joint, and fig. 7 is a schematic view of the invention connected with a quick-lock joint.

The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.