Welding-free radio frequency connector capable of being assembled on site

Abstract

The utility model discloses a welding-free radio frequency connector capable of being assembled on site, which comprises a connector shell, a central conductor and an insulating medium capable of supporting and positioning the central conductor are arranged in the connector shell, and the connector shell is provided with a welding-free lining assembly at a radio frequency cable connecting end. The other end opposite to the radio-frequency cable is provided with a connecting thread sleeve used for butting the radio-frequency connector for signal transmission, and the connecting thread sleeve and the wall surface of the connector shell are limited and fixed through an embedded C-shaped clamping ring; according to the utility model, by utilizing the welding-free lining assembly arranged on the connector shell, the field installation can be realized, the reliability is high, the cable can be cut according to the length required by the field and then is installed, the whole cable assembly does not need to be produced on a special production line, and the high adaptability and flexibility to the field are realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to radio frequency connector technical field, concretely relates to a kind of field assembly's welding-free radio frequency connector. BACKGROUND

[0002] Current cable assembly is produced directly to install on site, if the length needs to be adjusted if the on-site situation changes must be re-produced, not enough flexibility, affect operation schedule, and on-site welding operation cannot guarantee the assembly accuracy of connector, which can affect subsequent signal transmission. UTILITY MODEL CONTENTS

[0003] Technical purpose: in view of the deficiency of existing radio frequency connector, the utility model discloses a kind of field assembly's welding-free radio frequency connector.

[0004] Technical scheme: to achieve the above technical purpose, the utility model adopts the following technical scheme:

[0005] A kind of field assembly's welding-free radio frequency connector, including connector shell, center conductor and the insulating medium capable of supporting and positioning center conductor are arranged in connector shell, welding-free bushing assembly is arranged at radio frequency cable connection end of connector shell, connecting screw sleeve for radio frequency connector butt joint is arranged at the other end opposite to radio frequency cable and is used for signal transmission, connecting screw sleeve and the wall surface of connector shell are limited and fixed by the C-type snap ring of embedding.

[0006] Preferably, the welding-free bushing assembly of the utility model includes locking bushing and fixed bushing, outer wall of the locking bushing is provided with external thread, and the end of the connector shell is fixed by thread cooperation, the fixed bushing is concentrically press-fitted in the locking bushing, the end of the fixed bushing matched with the locking bushing adopts wedge-shaped slotted structure with diameter narrowing, the locking bushing is provided with tapered inclined surface matched with the wedge-shaped slotted structure, after determining the length of cable to be installed, the locking and fixing of radio frequency cable are carried out by the fixed bushing.

[0007] Preferably, the locking bushing of the utility model is provided with boss on the matched surface with the fixed bushing for positioning and fixing the press-in position of the fixed bushing, and the fixed bushing is provided with groove matched with the boss.

[0008] Preferably, the fixed bushing of the utility model is provided with compensation boss matched with the end face of the locking bushing, and buffer gasket is arranged between the compensation boss and the locking bushing, to compensate the axial assembly gap of the fixed bushing and the locking bushing through the buffer gasket.

[0009] Preferably, the center conductor of the utility model is provided with a positioning step for cooperating with the insulating medium to limit the axial position, the insulating medium is arranged on both sides of the positioning step, and is marked as a first insulating medium and a second insulating medium; and the inner hole of the connector shell is provided with a step surface for positioning and fixing the position of the insulating medium at the end of the insulating medium.

[0010] Preferably, the first insulating medium of the utility model is located on the side close to the welding-free bushing assembly, and the first insulating medium is provided with an impedance compensation groove with a width of 0.011-0.015 inches at the interface between the center conductor and the radio frequency cable.

[0011] Beneficial effects: the welding-free radio frequency connector which can be assembled on site has the following beneficial effects:

[0012] 1. The welding-free bushing assembly arranged on the connector shell can realize on-site installation, has high reliability, and can be installed according to the length of the cable required on site, without the need to produce the entire cable assembly on a special production line, and has high adaptability and flexibility on site.

[0013] 2. The wedge-shaped slot structure of the locking bushing can be tightly clamped around the cable after the cable is inserted into the connector, and the locking bushing is tightly installed between the connector shell through threaded connection, and the reliability can be further increased by applying thread glue on the threads.

[0014] 3. The convex boss and the concave groove of the locking bushing can be matched to position the pressing position, and the installation precision and reliability are improved through the mechanical compensation of the buffer gasket. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below.

[0016] Fig. 1 It is a whole structure schematic view of the connector of the utility model;

[0017] Fig. 2 It is a fixed bushing structure view of the utility model;

[0018] Fig. 3 It is a locking bushing structure view of the utility model;

[0019] Wherein, 1-connector housing, 2-center conductor, 3-connection sleeve, 4-C type snap ring, 5-lock bushing, 6-fixed bushing, 7-wedge slot structure, 8-tapered slope, 9-tower, 10-groove, 11-compensation boss, 12-cushion gasket, 13-positioning step, 14-first insulating medium, 15-second insulating medium, 16-impedance compensation slot, 17-sealing ring. DETAILED DESCRIPTION

[0020] Reference will now be made in detail to embodiments of the present disclosure, one or more examples of which are set forth herein below. Each embodiment and example is provided by way of explanation of the present disclosure, not limitation. It is intended that the following description provide a convenient illustration for understanding the exemplary embodiments of the present disclosure. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present disclosure without departing from the scope or spirit of the present disclosure.

[0021] As Figs. 1-3 The utility model discloses a kind of field assembly's welding-free radio frequency connector, including connector housing 1, center conductor 2 and the insulating medium capable of being supported and positioned to center conductor 2 are arranged in connector housing 1, welding-free bushing assembly is arranged at the radio frequency cable connection end of connector housing 1, connection sleeve 3 for radio frequency connector butt joint is arranged for signal transmission at the other end opposite to radio frequency cable, connection sleeve 3 and the wall surface between connector housing 1 are limited and fixed by the C type snap ring 4 of embedding, connection sleeve 3 and connector housing 1 are all arranged and the clamping groove of C type snap ring 4 cooperation, when assembling, using the way that C type snap ring 4 can contract and change diameter, the butt joint of connector housing 1 and connection sleeve 3 is carried out, and after losing external force, C type snap ring 4 restores original shape, clamps in clamping groove, completes connection, and sealing ring 17 is arranged in the butt joint area formed between connection sleeve 3 and connector housing 1 to carry out the sealing of radio frequency connector butt joint.

[0022] The utility model discloses that center conductor 2 is provided with the positioning step 13 for cooperating with insulating medium and carrying out axial location, and insulating medium is divided and arranged on the both sides of positioning step 13, and it is recorded as first insulating medium 14 and second insulating medium 15, and the inner hole of connector housing 1 is provided with step face for the position of insulating medium at the end of insulating medium Positioning fixed;The first insulating medium 14 of the utility model is located on the side close to welding-free bushing assembly, and the first insulating medium 14 is provided with the impedance compensation slot 16 with the width of 0.011-0.015 inch at the interface of center conductor 2 and radio frequency cable connection;Guarantee good electrical performance, realize the overall assembly of coaxial cable and connecting body, and it is completely suitable for outdoor field operation.

[0023] As Fig. 2 And Fig. 3As shown, the welding-free bushing assembly of the utility model includes locking bushing 5 and fixed bushing 6, the outer wall of locking bushing 5 is provided with external thread, and the end of connector housing 1 is fixed by thread cooperation, fixed bushing 6 is concentrically press-fitted in locking bushing 5, the end of fixed bushing 6 matched with locking bushing 5 adopts wedge-shaped slot structure 7 with reduced diameter, the wedge-shaped slot structure 7 is specifically in the form of six-jaw slotting, and is uniformly slotted along the circumferential direction, locking bushing 5 is provided with tapered inclined surface 8 matched with wedge-shaped slot structure 7, under the stress condition, the slotting is used to realize radial contraction, so that the fixed cable can be fixed, and on-site assembly is realized; after the length of the cable to be installed is determined, the locking and fixing of the radio frequency cable are completed through fixed bushing 6.

[0024] In order to limit the pressing depth of the edge, the locking bushing 5 of the utility model is provided with a boss 9 for positioning and fixing the pressing position of the fixed bushing on the matching surface of the fixed bushing 6, a groove 10 matched with the boss 9 is arranged on the fixed bushing 6, and when the groove 10 moves to the position of the boss 9 during the pressing process, the boss 9 is clamped into the groove 10, thereby limiting the axial movement of the fixed bushing; the fixed bushing 6 of the utility model is also provided with a compensation boss 11 matched with the end face of the locking bushing 5, and a buffer gasket 12 is arranged between the compensation boss 11 and the locking bushing 5, the axial assembly gap of the fixed bushing 6 and the locking bushing 5 is compensated through the buffer gasket 12, the buffer gasket 12 is made of high molecular material, the assembly mechanical gap is compensated through the buffer gasket 12 when the fixed bushing 6 and the locking bushing 5 are assembled, the reliability of the overall structure is ensured after assembly, and loosening due to the matching gap is avoided, so that the connection of the cable and the center conductor is affected.

[0025] The main purpose of the utility model is to assemble the radio frequency cable and the connector on site, so that the length of the cable can be adjusted flexibly according to the site working condition, thereby improving the flexibility of the connector installation, the center conductor, the insulating medium and the connecting screw sleeve and other components of the connector can be assembled in advance to improve the efficiency of the on-site installation; when the connector is installed on site, the cable can be directly stripped of the shielding layer and the center conductor, then inserted into the connector housing, and after the center conductor is connected, the welding-free bushing assembly of the utility model is used for locking.

Claims

1. A field-assemblable, weldless radio frequency connector, characterized by, The application relates to a connector shell (1) provided with a center conductor (2) and insulation medium capable of supporting and positioning the center conductor (2), a welding-free bushing assembly arranged at a radio frequency cable connecting end of the connector shell (1), and a connecting sleeve (3) for signal transmission of radio frequency connector mating arranged at the other end opposite to the radio frequency cable, wherein the connecting sleeve (3) is limited and fixed between the wall surface of the connector shell (1) by a C-shaped clasp (4).

2. A field-assemblable, weldless RF connector according to claim 1, wherein, The welding-free bushing assembly comprises a locking bushing (5) and a fixed bushing (6), the outer wall of the locking bushing (5) is provided with external threads, and the end of the connector shell (1) is fixed by thread cooperation, the fixed bushing (6) is concentrically press-fitted in the locking bushing (5), the end of the fixed bushing (6) matched with the locking bushing (5) adopts a wedge-shaped slot structure (7) with a reduced diameter, the locking bushing (5) is provided with a tapered inclined surface (8) matched with the wedge-shaped slot structure (7), and after the length of the cable to be installed is determined, the radio frequency cable is locked and fixed by the fixed bushing (6).

3. A field-assemblable, weldless RF connector according to claim 2, wherein, The locking bushing (5) is provided with a boss (9) for positioning and fixing the press-in position of the fixed bushing on the matched surface of the fixed bushing (6), and the fixed bushing (6) is provided with a groove (10) matched with the boss (9).

4. A field-assemblable, weldless RF connector according to claim 3, wherein, The fixed bushing (6) is provided with a compensation boss (11) matched with the end surface of the locking bushing (5), a buffer gasket (12) is arranged between the compensation boss (11) and the locking bushing (5), and the axial assembly gap of the fixed bushing (6) and the locking bushing (5) is compensated by the buffer gasket (12).

5. A field-assemblable, weldless RF connector according to claim 1, wherein, The center conductor (2) is provided with a positioning step (13) for axial limitation matched with the insulation medium, the insulation medium is arranged on both sides of the positioning step (13) and is marked as a first insulation medium (14) and a second insulation medium (15), and the inner hole of the connector shell (1) is provided with a step surface for positioning and fixing the position of the insulation medium at the end of the insulation medium.

6. A field-assemblable, weldless RF connector according to claim 5, wherein, The first insulation medium (14) is arranged on the side close to the welding-free bushing assembly, and the first insulation medium (14) is provided with an impedance compensation groove (16) with a width of 0.011-0.015 inches at the interface between the center conductor (2) and the radio frequency cable.

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