CN212625993U

CN212625993U - Coaxial attenuator

Info

Publication number: CN212625993U
Application number: CN202021891041.1U
Authority: CN
Inventors: 刘秀娟
Original assignee: Shenzhen Rufan Technology Co ltd
Current assignee: Shenzhen Rufan Technology Co ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-02-26
Anticipated expiration: 2030-09-02

Abstract

The utility model belongs to the technical field of attenuators, and provides a coaxial attenuator, which comprises a first base, a second base and an attenuation part arranged between the first base and the second base, inlay on the first base and be equipped with the contact pin connecting piece, it is equipped with the jack connecting piece to inlay on the second base, the contact pin connecting piece includes first fixing base and the contact pin of wearing to locate first fixing base center, first fixing base inlays to be established on first base, first recess has all been seted up to first fixing base position in the both sides of contact pin, be equipped with convex screening glass in the first recess, the first insulation layer has been laid to one side of convex screening glass, the opposite side fixed mounting of convex screening glass has extension spring, extension spring keeps away from the one end of convex screening glass and the lateral wall fixed connection of first recess, the one side slope that first insulation layer was kept away from to convex screening glass sets up, the inside of decay part is provided with the. The utility model discloses a coaxial attenuator, convenient to detach and maintenance to can protect the contact pin.

Description

Coaxial attenuator

Technical Field

The utility model relates to an attenuator technical field, concretely relates to coaxial attenuator.

Background

The coaxial attenuator is an energy-loss radio frequency or microwave element, and the inside of the element contains resistive materials. Besides the common resistive fixed attenuator, the attenuator also has an electrically controlled fast adjusting attenuator. Attenuators are widely used in a variety of applications where power level adjustment is required.

The conventional coaxial attenuator is connected with the attenuation part through the connecting part through the plug or the socket to achieve the purpose of power adjustment, but the plug and the socket are fixedly connected with the attenuation part through the connecting part, so that the coaxial attenuator is not only inconvenient for workers to detach and maintain, but also easy to damage a contact pin of the plug due to the fact that the contact pin cannot be protected in a frequent plugging process.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a pair of coaxial attenuator, convenient to detach and maintenance to can protect the contact pin.

In order to solve the technical problem, the utility model provides a following technical scheme:

a coaxial attenuator comprises a first base, a second base and an attenuation part arranged between the first base and the second base, wherein a contact pin connecting piece is embedded on the first base, a jack connecting piece is embedded on the second base, the contact pin connecting piece comprises a first fixing seat and a contact pin penetrating through the center of the first fixing seat, the first fixing seat is embedded on the first base, first grooves are formed in two sides, located on the contact pin, of the first fixing seat, an arc-shaped protection sheet is arranged in each first groove, a first insulating layer is laid on one side of the arc-shaped protection sheet, an extension spring is fixedly installed on the other side of the arc-shaped protection sheet, one end, far away from the arc-shaped protection sheet, of each extension spring is fixedly connected with the side wall of each first groove, one side, far away from the first insulating layer, of the arc-shaped protection sheet is obliquely arranged, an installation cavity, the utility model discloses a damping unit, including attenuation part, mounting cavity, first fixing base, first screw hole and installation cavity, first screw hole has been seted up to the one end that attenuation part is located the attenuation unit, and first screw hole threaded connection of first fixing base of installation cavity intercommunication, the one end that the installation cavity is close to the contact pin connecting piece is provided with the first connecting hole with the shape looks adaptation of convex screening glass, the one end that attenuation part is located the attenuation unit has seted up the second screw hole, jack connecting piece and second screw hole threaded.

Further, the jack connecting piece comprises a second fixing seat, a jack is formed in the second fixing seat, the other end, located on the attenuation unit, of the attenuation part is provided with a second threaded hole, the second threaded hole is communicated with the installation cavity, the second fixing seat is embedded in the first base, the second fixing seat is in threaded connection with the second threaded hole, one end, close to the jack connecting piece, of the installation cavity is provided with a second connecting hole matched with the second fixing seat, a second groove is formed in the side wall of the second connecting hole, a compression spring and an insulating top block are arranged in the second groove, one end of the compression spring is fixedly connected with the side wall of the second groove, and the other end of the compression spring is fixedly connected with the insulating top block.

Furthermore, one end of the second fixed seat close to the mounting cavity is a circular truncated cone.

Furthermore, a second insulating layer is arranged between the first base and the first fixing seat, and a second insulating layer is arranged between the second base and the second fixing seat.

Furthermore, a radiator is fixedly mounted on the outer side of the attenuation part.

According to the above technical scheme, the beneficial effects of the utility model are that: when the first fixing seat is in threaded connection with the first threaded hole, the tail end of the arc-shaped protection sheet is arranged in the first connecting hole, the arc-shaped protection sheet is driven to move into the first connecting hole along with the rotation of the first fixing seat, the two arc-shaped protection sheets move to one side close to the contact pin under the limiting action of the side wall of the first connecting hole, when the end part of the contact pin is in contact with the attenuation unit, the inner sides of the two arc-shaped protection sheets are just in contact with the surface of the contact pin, and at the moment, the extension spring is in a stretched state; when dismantling the contact pin, the first fixing base of reverse rotation, drive the contact pin and remove to the one side of keeping away from the decay unit, and simultaneously, under extension spring's effect, two convex screening glass remove to the one side of keeping away from the contact pin, move out first connecting hole completely until the contact pin, at the in-process of contact pin installation and dismantlement, because the guard action of convex screening glass, avoid the contact pin to take place the friction with other contact surfaces and protect the contact pin, under extension spring's pulling force effect, avoid convex screening glass to protect the excessive extrusion of contact pin, protect the contact pin.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic cross-sectional view of the present invention.

Reference numerals:

1-a first base; 2-a second base; 3-an attenuating member; 4-a second insulating layer;

11-a first fixed seat; 12-inserting pin; 13-a first groove; 21-a second fixed seat; 31-a mounting cavity; 32-a first threaded hole; 33-a second threaded hole; 34-a heat sink;

131-an extension spring; 132-arc shaped protective sheet; 311-an attenuation unit; 312 — a first connection hole; 313-second attachment hole;

1321 — a first insulating layer; 3131 — a second recess; 3132-a compression spring; 3133-insulating top piece.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Referring to fig. 1, the coaxial attenuator provided in this embodiment includes a first base 1, a second base 2, and an attenuating component 3 disposed between the first base 1 and the second base 2, a pin connector is embedded in the first base 1, a socket connector is embedded in the second base 2, the pin connector includes a first fixing seat 11 and a pin 12 penetrating through the center of the first fixing seat 11, the first fixing seat 11 is embedded in the first base 1, first grooves 13 are formed on both sides of the first fixing seat 11 on the pin 12, an arc protection sheet 132 is disposed in the first groove 13, a first insulating layer 1321 is disposed on one side of the arc protection sheet 132, an extension spring 131 is fixedly mounted on the other side of the arc protection sheet 132, one end of the extension spring 131 far from the arc protection sheet 132 is fixedly connected to a side wall of the first groove 13, one side of the arc protection sheet 132 far from the first insulating layer 1321 is disposed obliquely, the inside of decay part 3 is provided with installation cavity 31, be provided with decay unit 311 in the installation cavity 31, first screw hole 32 has been seted up to the one end that decay part 3 is located decay unit 311, first screw hole 32 communicates first fixing base 11 and first screw hole 32 threaded connection with installation cavity 31, the one end that installation cavity 31 is close to the contact pin connecting piece is provided with the first connecting hole 312 with the shape looks adaptation of arc protection piece 132, second screw hole 33 has been seted up to the one end that decay part 3 is located decay unit 311, jack connecting piece and second screw hole 33 threaded connection, decay unit 311 is prior art, the event is not repeated.

In practical use, while the first fixing base 11 is in threaded connection with the first threaded hole 32, the tail end of the arc protection piece 132 is placed in the first connection hole 312, the arc protection piece 132 is driven to move into the first connection hole 312 along with the rotation of the first fixing base 11, the two arc protection pieces 132 are moved to one side close to the pin 12 under the limiting action of the side wall of the first connection hole 312, when the end of the pin 12 contacts with the attenuation unit 311, the inner sides of the two arc protection pieces 132 just contact with the surface of the pin 12, and at this time, the tension spring 131 is in a stretched state; when dismantling contact pin 12, first fixing base 11 of reverse rotation drives contact pin 12 to the one side of keeping away from decay unit 311 and moves, simultaneously, under extension spring 131's effect, two circular arc protection pieces 132 move to the one side of keeping away from contact pin 12, until contact pin 12 shifts out first connecting hole 312 completely, in the in-process of contact pin 12 installation and dismantlement, because the guard action of circular arc protection piece 132, avoid contact pin 12 and other contact surfaces to take place the friction and protect contact pin 12, under extension spring 131's pulling force effect, avoid circular arc protection piece 132 to the excessive extrusion of contact pin 12, protect contact pin 12.

In this embodiment, the jack connector includes a second fixing seat 21, an jack is opened on the second fixing seat 21, a second threaded hole 33 is opened at the other end of the attenuation unit 311 of the attenuation member 3, the second threaded hole 33 is communicated with the mounting cavity 31, the second fixing seat 21 is embedded on the first base 1, the second fixing seat 21 is in threaded connection with the second threaded hole 33, a second connection hole 313 matched with the second fixing seat 21 is opened at one end of the mounting cavity 31 close to the jack connector, a second groove 3131 is opened on a side wall of the second connection hole 313, a compression spring 3132 and an insulating top block 3133 are arranged in the second groove 3131, one end of the compression spring 3132 is fixedly connected with a side wall of the second groove 3131, and the other end of the compression spring 3132 is fixedly connected with the insulating top block 3133.

In practical use, the second fixing seat 21 is in threaded connection with the second threaded hole 33, and during the process of rotating the second fixing seat 21, the second fixing seat 21 moves towards the inner side of the second connecting hole 313, and meanwhile, the insulating top block 3133 is abutted against the second fixing seat 21 under the action of the compression spring 3132 until the second fixing seat 21 completely enters the second connecting hole 313 and is in contact with the attenuation unit 311; when the jack connector is disassembled and the second fixing base 21 is rotated in the opposite direction, the second fixing base 21 moves to the outside of the second connection hole 313, and at the same time, the second fixing base 21 is ejected to the outside of the second connection hole 313 under the elastic force of the compression spring 3132, thereby facilitating the disassembly of the jack connector.

In this embodiment, one end of the second fixing seat 21 close to the mounting cavity 31 is a truncated cone.

In practical use, the shape of the second connection hole 313 is adapted to the shape of the truncated cone, and the insulating top block 3133 is in contact with the inclined side surface of the truncated cone to generate thrust on the side surface of the truncated cone, so that the second fixing base 21 can be conveniently taken out of the second connection hole 313.

In this embodiment, the second insulating layer 4 is disposed between the first base 1 and the first fixing base 11, and the second insulating layer 4 is disposed between the second base 2 and the second fixing base 21.

In the present embodiment, a heat sink 34 is fixedly mounted on the outer side of the attenuation member 3, so as to dissipate heat generated by the attenuation member 3.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A coaxial attenuator comprising a first base (1), a second base (2), and an attenuating member (3) disposed between the first base (1) and the second base (2), characterized in that: the pin connector is embedded in the first base (1), the jack connector is embedded in the second base (2), the pin connector comprises a first fixing seat (11) and a pin (12) penetrating through the center of the first fixing seat (11), the first fixing seat (11) is embedded in the first base (1), first grooves (13) are formed in two sides, located on the pin (12), of the first fixing seat (11), circular arc-shaped protection plates (132) are arranged in the first grooves (13), a first insulating layer (1321) is laid on one side of each circular arc-shaped protection plate (132), tension springs (131) are fixedly mounted on the other sides of the circular arc-shaped protection plates (132), one ends, far away from the circular arc-shaped protection plates (132), of the tension springs (131) are fixedly connected with the side walls of the first grooves (13), and one sides, far away from the first insulating layer (1321), of the circular arc-shaped protection plates (132), the inside of decay part (3) is provided with installation cavity (31), is provided with decay unit (311) in installation cavity (31), first screw hole (32) have been seted up to the one end that decay part (3) are located decay unit (311), first screw hole (32) and installation cavity (31) first fixing base (11) and first screw hole (32) threaded connection of intercommunication, the one end that installation cavity (31) are close to the contact pin connecting piece is provided with first connecting hole (312) with the shape looks adaptation of convex protection piece (132), second screw hole (33) have been seted up to the one end that decay part (3) are located decay unit (311), jack connecting piece and second screw hole (33) threaded connection.

2. A coaxial attenuator according to claim 1, wherein: the jack connecting piece comprises a second fixed seat (21), the second fixed seat (21) is provided with a jack, the other end of the attenuation part (3) positioned on the attenuation unit (311) is provided with a second threaded hole (33), the second threaded hole (33) is communicated with the mounting cavity (31), the second fixed seat (21) is embedded on the second base (2), the second fixed seat (21) is in threaded connection with the second threaded hole (33), the one end that installation cavity (31) is close to jack connector offers second connecting hole (313) with second fixing base (21) looks adaptation, has seted up second recess (3131) on the lateral wall of second connecting hole (313), is provided with compression spring (3132) and insulating kicking block (3133) in second recess (3131), the one end of compression spring (3132) and the lateral wall fixed connection of second recess (3131), the other end and the insulating kicking block (3133) fixed connection of compression spring (3132).

3. A coaxial attenuator according to claim 2, wherein: one end of the second fixed seat (21) close to the mounting cavity (31) is a circular truncated cone.

4. A coaxial attenuator according to claim 2, wherein: a second insulating layer (4) is arranged between the first base (1) and the first fixing seat (11), and a second insulating layer (4) is arranged between the second base (2) and the second fixing seat (21).

5. A coaxial attenuator according to claim 1, wherein: and a radiator (34) is fixedly arranged on the outer side of the attenuation part (3).