Radio frequency coaxial connector

Abstract

The utility model discloses a radio frequency coaxial connector, and relates to the technical field of coaxial connectors. The device comprises a shell, the shell comprises an inner shell and an outer shell which are coaxially arranged, and a partition plate is connected between the inner shell and the outer shell; the central conductor is coaxially arranged in the inner shell, one end of the central conductor is provided with an insertion core head, and the other end of the central conductor is connected with a plurality of arc-shaped tail sheets which are distributed in a ring shape; the annular plate is arranged on the inner wall of the shell and close to one end of the arc-shaped tail piece; the annular plate is arranged on the inner wall of the shell, the sliding rods are slidably inserted into the annular plate, the abutting plates in lap joint with the arc-shaped tail pieces are arranged at the ends of the sliding rods, and the elastic abutting pieces are arranged and used for applying radial inward abutting force to the sliding rods, so that the abutting plates apply contraction force to the arc-shaped tail pieces, and the arc-shaped tail pieces can be prevented from falling off even if being plugged and pulled back and forth. The arc-shaped tail piece can contract inwards under the action of the elastic abutting piece, the elastic clamping force for clamping the connector can still be maintained, it is ensured that connecting points are tightly attached and not loosened, and stable signal transmission is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of coaxial connectors, and in particular to radio frequency coaxial connectors. Background Art

[0002] In today's electronic communications field, such as voice transmission, data transmission, image transmission and other occasions, the required signal propagation speed is getting faster and faster, the frequency is getting higher and higher, at the same time, the degree of systematization and integration is getting higher and higher, and the corresponding application of RF coaxial connectors is becoming more and more extensive, and the application of miniaturization and high frequency is gradually becoming a mainstream.

[0003] The central conductor inside some coaxial connectors is constructed with a ferrule head at one end and a number of tail pieces constructed in a circular array at the other end. The tail piece can be deformed, and the deformation characteristics can be used to clamp the connectors of other connectors or cables. However, after repeated plugging and unplugging, the clamping force of the tail piece on the connector will decrease due to excessive deformation, resulting in a failure to clamp smoothly and causing looseness. This leads to a reduction in the attenuation of the transmission signal, thereby reducing practicality. Therefore, the present application proposes a radio frequency coaxial connector. Utility Model Content

[0004] The purpose of the present application is to provide a radio frequency coaxial connector to solve the problem that the tail piece of the central conductor of the existing coaxial connector is easily excessively deformed during reciprocating plugging and unplugging, resulting in a decrease in the clamping force and affecting signal transmission.

[0005] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0006] RF coaxial connectors, including:

[0007] The housing comprises an inner housing and an outer housing which are coaxially arranged, wherein a partition is connected between the inner housing and the outer housing;

[0008] A central conductor is coaxially arranged in the inner shell, one end of the central conductor is configured with a core plug, and the other end is connected to a plurality of arc-shaped tail pieces distributed in an annular shape;

[0009] A ring plate is arranged on the inner wall of the housing and close to one end of the arc-shaped tail piece, and a plurality of slide bars distributed in an annular shape are slidably penetrated through the ring plate, and the plurality of slide bars correspond to the plurality of arc-shaped tail pieces respectively, and a contact plate overlapped with the arc-shaped tail piece is arranged at one end of the slide bar;

[0010] The elastic resistance member is arranged on the shell and is used for applying a radially inward resistance force to the plurality of slide bars.

[0011] Furthermore, the elastic resistance member includes a ring block slidably inserted between the inner shell and the outer shell, a spring is connected between one side of the ring block and the partition, and a conical annular surface is constructed on the other side of the ring block, and the free ends of several sliding rods are in contact and overlap with the conical annular surface.

[0012] Furthermore, the sliding rod is a rectangular rod and is hingedly connected to the contact plate.

[0013] Furthermore, a movable ring is slidably arranged between the partition and the ring block, one end of the spring away from the ring block is connected to the movable ring, and an adjusting member is arranged on the shell for adjusting the sliding of the movable ring to change the elastic strength of the spring.

[0014] Furthermore, the adjusting member comprises a sleeve threadedly mounted on the outer shell, two through grooves are symmetrically provided on the outer shell, and two support rods are symmetrically arranged on the outer surface of the movable ring, and the two support rods slide through the two through grooves respectively.

[0015] Furthermore, an insulating sleeve is provided on the inner wall of the inner shell, and the insulating sleeve is interference-fitted with the central conductor.

[0016] Furthermore, an insulating pad is provided on the contact plate, and the insulating pad contacts and overlaps the arc-shaped tail piece.

[0017] Furthermore, a magnetic ring is arranged between the inner shell and the ring plate.

[0018] The beneficial effects of the present application are as follows: In the present application, a ring plate is provided on the inner wall of the outer shell, a sliding rod is slidably inserted on the ring plate, and a contact plate overlapping the arc-shaped tail piece is provided at the end of the sliding rod. An elastic contact piece is provided, which is used to apply a radially inward resistance force to a plurality of sliding rods, so that the contact plate applies a contraction force to the arc-shaped tail piece. Even if the arc-shaped tail piece is subjected to reciprocating plugging and pulling, the arc-shaped tail piece will contract inwardly under the action of the elastic contact piece, and can still maintain the elastic clamping force of the clamping connector, thereby ensuring that the connection point fits tightly and does not loosen, thereby ensuring stable signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural diagram of this application;

[0020] Figure 2 It is a sectional view of the three-dimensional structure of the present application;

[0021] Figure 3 This application Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This application Figure 2 Enlarged view of point B in the middle;

[0023] Figure numerals: 1, shell; 2, center conductor; 3, ferrule head; 4, arc-shaped tail piece; 5, ring plate; 6, slide rod; 7, contact plate; 8, elastic contact member; 9, movable ring; 10, adjustment member; 11, insulating sleeve; 12, insulating pad; 13, magnetic ring; 101, inner shell; 102, outer shell; 103, partition; 801, ring block; 802, spring; 803, conical ring surface; 1001, sleeve; 1002, groove; 1003, support rod. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0025] like Figure 1-Figure 4 As shown, a radio frequency coaxial connector proposed in an embodiment of the present application includes: a shell 1, including an inner shell 101 and an outer shell 102 arranged coaxially, and a partition 103 is connected between the inner shell 101 and the outer shell 102; a central conductor 2, coaxially arranged in the inner shell 101, one end of the central conductor 2 is constructed with a core plug 3, and the other end is connected with a plurality of arc tail pieces 4 distributed in an annular shape; the central conductor 2, the core plug 3 and the arc tail piece 4 are integrally formed, a ring plate 5, arranged on the inner wall of the shell 102 and close to one end of the arc tail piece 4, a plurality of slide rods 6 distributed in an annular shape are slidably penetrated on the ring plate 5, and the plurality of slide rods 6 correspond to the plurality of arc tail pieces 4 one by one, and a contact plate 7 overlapped with the arc tail piece 4 is arranged at one end of the slide rod 6; an elastic contact member 8, arranged on the shell 1, which is used for In order to apply radially inward resistance force to the plurality of slide bars 6, the plurality of slide bars 6 are slidably arranged on the inner wall of the shell 102 through the ring plate 5, and the end of the slide bar 6 resists the arc tail piece 4 through the resistance plate 7, and the elastic resistance member 8 is used to apply radially inward resistance force to the plurality of slide bars 6, so that the plurality of resistance plates 7 respectively apply inward contraction resistance force to the plurality of arc tail pieces 4, forcing the plurality of arc tail pieces 4 to contract, which can not only ensure effective clamping and connection, but also, even if the arc tail piece 4 is subjected to reciprocating plugging and unplugging, after losing its elastic clamping force due to excessive deformation, it will also generate inward contraction elastic resistance due to the elastic resistance of the resistance plate 7, and can still maintain the elastic clamping force of the clamping connector, thereby ensuring that the connection point is tightly fitted and not loose, thereby ensuring stable signal transmission.

[0026] like Figure 3 and Figure 4As shown, in some embodiments, the elastic resistance member 8 includes a ring block 801 slidably inserted between the inner shell 101 and the outer shell 102, a spring 802 is connected between one side of the ring block 801 and the partition 103, and a conical ring surface 803 is constructed on the other side of the ring block 801, and the free ends of several sliding rods 6 are all in contact and overlap with the conical ring surface 803. Under the elastic resistance of the spring 802, the ring block 801 has an elastic resistance force toward the ring plate 5. By utilizing the resistance between the conical ring surface 803 and the sliding rod 6, under the resistance force of the inclined surface, a radial inward thrust is applied to the sliding rod 6, so that the resistance plate 7 applies a contraction force to the arc tail piece 4. Preferably, the free end of the arc tail piece 4 is constructed with a transition slope, so that when several arc tail pieces 4 are contracted to a certain extent, the connecting head can also be inserted therein.

[0027] like Figure 4 As shown, in some embodiments, the slide rod 6 is a rectangular rod and is hingedly connected to the contact plate 7. When the arc-shaped tail piece 4 contracts, the end thereof away from the center conductor 2 contracts and deforms in an arc. The contact plate 7 is hinged to the slide rod 6, so that when the slide rod 6 slides, the contact plate 7 can rotate around the hinge point, effectively fitting and squeezing the arc-shaped tail piece 4, thereby improving practicality.

[0028] like Figure 2 and Figure 3 As shown, in some embodiments, a movable ring 9 is slidably arranged between the partition 103 and the ring block 801. Preferably, the movable ring 9 is slidably sleeved on the inner shell 101, and one end of the spring 802 away from the ring block 801 is connected to the movable ring 9. An adjusting member 10 is arranged on the shell 1, which is used to adjust the sliding of the movable ring 9 to change the elastic strength of the spring 802. The sliding of the movable ring 9 is adjusted by the adjusting member 10 to change the elastic strength of the spring 802, so that when the connecting head is inserted, the elastic strength of the spring 802 can be reduced, so that the several arc-shaped tail pieces 4 will not shrink excessively, which is convenient for the insertion of the connecting head. After the connecting head is inserted, the elastic strength of the spring 802 is strengthened, so that the clamping force of the several arc-shaped tail pieces 4 on the connecting head is better, thereby improving practicality.

[0029] like Figure 1 and Figure 3 As shown, in some embodiments, the adjusting member 10 includes a sleeve 1001 threadedly mounted on the outer shell 102, and two through grooves 1002 are symmetrically provided on the outer shell 102. Two support rods 1003 are symmetrically provided on the outer surface of the movable ring 9. The two support rods 1003 slide through the two through grooves 1002 respectively. Preferably, the two support rods 1003 overlap the ends of the sleeve 1001, and the sleeve 1001 is twisted to rotate and move, thereby resisting the two support rods 1003 from sliding along the two through grooves 1002 respectively, thereby achieving the effect of driving the movable ring 9 to move.

[0030] like Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the inner wall of the inner shell 101 is provided with an insulating sleeve 11, and the insulating sleeve 11 is interference fit with the center conductor 2. Preferably, the insulating sleeve 11 is made of rubber material, and the insulating sleeve 11 is provided to wrap the center conductor 2 to ensure safe operation.

[0031] like Figure 4 As shown, in some embodiments, an insulating pad 12 is provided on the contact plate 7, and the insulating pad 12 is in contact with and overlaps the arc-shaped tail piece 4. Preferably, the insulating pad 12 is made of rubber. The insulating pad 12 is provided to prevent electrical conduction between the contact plate 7 and the arc-shaped tail piece 4, thereby playing a protective role.

[0032] like Figure 4 As shown, in some embodiments, a magnetic ring 13 is provided between the inner shell 101 and the ring plate 5. The magnetic ring 13 is an anti-interference element. Under the action of the magnetic ring 13, normal and useful signals can pass through the connection points well, and the high-frequency noise of the interference signal can be well suppressed, thereby improving practicality.

[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A radio frequency coaxial connector, characterized in that: include: The housing (1) comprises an inner housing (101) and an outer housing (102) which are coaxially arranged, wherein a partition plate (103) is connected between the inner housing (101) and the outer housing (102); A central conductor (2) is coaxially arranged in the inner shell (101), one end of the central conductor (2) is configured with a core plug (3), and the other end is connected to a plurality of arc-shaped tail pieces (4) distributed in a ring shape; A ring plate (5) is arranged on the inner wall of the housing (102) and close to one end of the arc-shaped tail piece (4); a plurality of slide bars (6) distributed in an annular shape are slidably penetrated through the ring plate (5); the plurality of slide bars (6) correspond to the plurality of arc-shaped tail pieces (4) respectively; and a contact plate (7) overlapped with the arc-shaped tail piece (4) is arranged at one end of the slide bar (6); An elastic resistance member (8) is arranged on the housing (1) and is used to apply a radially inward resistance force to a plurality of sliding rods (6).

2. The radio frequency coaxial connector according to claim 1, characterized in that: The elastic abutment (8) comprises an annular block (801) slidably inserted between the inner shell (101) and the outer shell (102); a spring (802) is connected between one side of the annular block (801) and the partition (103); a conical annular surface (803) is constructed on the other side of the annular block (801); and the free ends of a plurality of sliding rods (6) are in abutment and overlap with the conical annular surface (803).

3. The radio frequency coaxial connector according to claim 1, characterized in that: The sliding rod (6) is a rectangular rod and is hingedly connected to the contact plate (7).

4. The radio frequency coaxial connector according to claim 2, characterized in that: A movable ring (9) is slidably arranged between the partition plate (103) and the ring block (801); one end of the spring (802) away from the ring block (801) is connected to the movable ring (9); and an adjusting member (10) is arranged on the housing (1) for adjusting the sliding of the movable ring (9) to change the elastic strength of the spring (802).

5. The radio frequency coaxial connector according to claim 4, characterized in that: The adjusting member (10) comprises a sleeve (1001) threadedly sleeved on a housing (102), two through grooves (1002) are symmetrically provided on the housing (102), and two support rods (1003) are symmetrically provided on the outer surface of the movable ring (9), and the two support rods (1003) slide through the two through grooves (1002) respectively.

6. The radio frequency coaxial connector according to claim 1, characterized in that: The inner wall of the inner shell (101) is provided with an insulating sleeve (11), and the insulating sleeve (11) is interference-fitted with the central conductor (2).

7. The radio frequency coaxial connector according to claim 1, characterized in that: An insulating pad (12) is provided on the contact plate (7), and the insulating pad (12) contacts and overlaps the arc-shaped tail piece (4).

8. The radio frequency coaxial connector according to claim 1, characterized in that: A magnetic ring (13) is arranged between the inner shell (101) and the ring plate (5).

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