CN223363352U - Quick connecting device for waveguide flange - Google Patents

Abstract

The utility model discloses a waveguide flange quick connecting device, which comprises a hollow first connecting piece and a second connecting piece, wherein the hollow first connecting piece can be axially penetrated by the waveguide flange, and the second connecting piece is in threaded connection with the first connecting piece, and is characterized in that: the two second connecting pieces can be respectively connected with the two ends of the first connecting piece in a threaded mode, the middle of each second connecting piece is provided with an axially extending through hole, the inner diameter of the through hole is smaller than the outer diameter of the waveguide flange, and meanwhile the peripheral wall of each second connecting piece is provided with radial channels penetrating through the two end faces of the second connecting piece and the through hole, and the radial channels can enable waveguides of the waveguides to radially enter the through holes. Compared with the prior art, the waveguide tube can directly enter the through hole along the radial direction from the radial channel of the second connecting piece, the split stud and the lock nut are not required to be split and sleeved outside the waveguide, the split stud and the lock nut are spliced completely by using the screw, and the complex process can be omitted, so that the quick connection is realized.

Description

Quick connecting device for waveguide flange

Technical Field

The utility model relates to the technical field of electromagnetic wave conduction, in particular to a waveguide flange quick connecting device.

Background

A waveguide is a component for transmitting high-frequency electromagnetic waves, and is generally made of metal, and has good electrical conductivity and thermal conductivity. The waveguide is usually tubular, flanges are arranged at two ends of the waveguide for connection, and the waveguide flange connection device is required to connect different waveguides in the microwave and radio frequency system to form a complete transmission path so as to realize signal transmission and control.

The chinese patent application No. 201721864401.7 (grant publication No. CN 207868367U) discloses a waveguide assembly connector device, which is characterized in that a larger-sized stud and a locking screw sleeve are respectively sleeved on a waveguide assembly, and when in interconnection, the locking screw sleeve is rotated clockwise or anticlockwise, so that an internal thread on the locking screw sleeve is matched with an external thread on the stud, thereby driving a flange surface of the waveguide assembly to be interconnected to move along the axial direction, and achieving the purpose of interconnecting the waveguide assemblies.

However, in view of the fact that the two ends of the waveguide are provided with flanges with larger outer diameters, the stud and the locking screw sleeve cannot be directly sleeved outside the waveguide. The stud and the locking screw sleeve are required to be detached from the middle (namely, are detached vertically in a peer-to-peer mode), are respectively clamped at the rear parts of flanges of the two waveguide assemblies to be interconnected, and then are assembled into a complete stud and a complete locking screw sleeve by using screws, so that the whole process is complicated. Therefore, further improvements are needed for the existing waveguide flange quick-connect devices.

Disclosure of utility model

The technical problem to be solved by the utility model is to provide a waveguide flange quick connecting device with a simpler structure and use aiming at the state of the art.

The quick waveguide flange connecting device is characterized in that two second connecting pieces are arranged and can be respectively connected with two ends of the first connecting piece in a threaded mode, the middle of each second connecting piece is provided with an axially extending through hole, the inner diameter of each through hole is smaller than the outer diameter of the waveguide flange, and meanwhile, the peripheral wall of each second connecting piece is provided with radial channels penetrating through the two end faces of the second connecting piece and the through holes, and the radial channels can enable waveguides of waveguides to radially enter the through holes.

Preferably, the opposite end surfaces of the two second connecting pieces are respectively provided with a groove which is axially recessed and communicated with the through hole, and the grooves are used for accommodating waveguide flanges. The waveguide flange is embedded in the second connector, thereby reducing the volume of the connection site.

Specifically, the first connecting piece is provided with an external thread to form a hollow stud, and the second connecting piece is provided with an internal thread matched with the first connecting piece to form a hollow screw sleeve.

Preferably, the internal thread of the second connecting piece is arranged on the inner side wall of the groove.

Preferably, the depth of the groove of the second connecting piece is not larger than the circumferential thickness of the connected waveguide flange, so that the second connecting piece and the first connecting piece can continuously maintain the close fit of the two waveguide flanges after being screwed.

In order to prevent the second connecting piece from slipping when the user applies force to screw the second connecting piece, the outer side wall of the second connecting piece is preferably provided with anti-slip patterns.

Preferably, the peripheral wall of each second connecting piece is further provided with at least one pair of planes for clamping by the clamping piece, and two planes in each pair of planes are respectively positioned at two sides of the radial channel so as to facilitate clamping and force application of the tool.

Preferably, the width of the radial channel is the same as the inner diameter of the through hole, so as to facilitate processing.

Compared with the prior art, the radial channel is additionally arranged in the second connecting piece, and the waveguide tube can directly enter the through hole from the radial channel of the second connecting piece along the radial direction, so that during assembly, the split stud and the split lock nut are not required to be split up and down and sleeved outside the waveguide tube as in the prior art, and the split stud and the split lock nut are split completely through screws, so that the complex process can be omitted, and the quick connection between the second connecting piece and the waveguide flange can be realized directly through the radial channel. In addition, the existence of the radial channel enables the second connecting piece to generate elastic deformation when being screwed down, so that friction force between the second connecting piece and threads of the first connecting piece is increased, loosening caused by vibration and external force is resisted through elastic deformation of an inner structure, an anti-loosening effect is achieved, and the two interconnected waveguide flanges are continuously kept in close fit.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic diagram of an embodiment of the present utility model when connecting waveguide flanges;

FIG. 4 is an exploded view of FIG. 3;

Fig. 5 is a cross-sectional view of fig. 3.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1-5, a preferred embodiment of the waveguide flange quick connect device of the present utility model is shown.

The present embodiment comprises one first connector 1 and two second connectors 2. Referring to fig. 2, the first connecting member 1 is hollow and can be axially penetrated by the waveguide flange 31, and the two second connecting members 2 can be respectively screwed at two ends of the first connecting member 1.

Specifically, it is preferable that the first connector 1 has an external thread to be a hollow stud, and the two second connectors 2 have internal threads to be hollow threaded to be matched with the first connector 1, as shown in fig. 1. Except for the scheme that the second connecting piece 2 is sleeved outside the first connecting piece 1 shown in the embodiment, in production, external threads can be arranged on the second connecting piece 2 to form a hollow stud according to actual conditions, and internal threads are arranged on the first connecting piece 1 to form a hollow screw sleeve, so that the first connecting piece 1 is sleeved outside the second connecting piece 2, and the technical effect which can be achieved is similar to that of the embodiment.

With continued reference to fig. 2, the middle portion of each second connecting member 2 is provided with an axially extending through hole 22, and meanwhile, the peripheral wall of each second connecting member 22 is further provided with a radial channel 21 penetrating through both end surfaces of the second connecting member 2 and the through hole 22, and the radial channel 21 can allow the waveguide tube 32 of the waveguide 3 to radially enter into the through hole 22, as shown in fig. 3, the width of the radial channel 21 is the same as the inner diameter of the through hole 22, so as to facilitate processing and manufacturing. In addition, the inner diameter of the through hole 22 is set smaller than the outer diameter of the waveguide flange 31, so that it is ensured that the waveguide 3 cannot be axially separated from the second connector 2.

As shown in fig. 4, the opposite surfaces of the two second connectors 2 are also provided with grooves 23 which are axially recessed and are communicated with the through holes 22, the grooves 23 are used for accommodating waveguide flanges 31, the internal threads are arranged on the inner side walls of the grooves 23, and the first connector 1 with external threads is positioned at the gap between the waveguide flanges 31 and the grooves 23 when being screwed. Thus, after assembly, the whole volume is more compact.

Referring to fig. 5, when the groove 23 is designed, the depth of the groove 23 is not greater than the axial thickness of the waveguide flange 31, and when the second connector 2 is screwed to the first connector 1, the bottom surface of the groove 23 continuously pushes the waveguide flange 31 received in the groove 23 to be tightly attached to another waveguide flange 31 to be interconnected, and continuously limits the separation of the two waveguide flanges 31 after the interconnection is completed.

To prevent slipping when the user screws the second connector 2, the present embodiment is further provided with anti-slip threads 24 on the outside of the second connector 2.

Meanwhile, considering the force applied by tools such as a wrench, at least one pair of planes 25 for clamping by a clamping member (such as a wrench) are further provided on the peripheral wall of each second connecting member 2, and two planes 25 in each pair of planes 25 are respectively located at two sides of the radial channel 21, so that the peripheral force of the second connecting member is uniform, and the second connecting member is easy to rotate.

The working principle of the embodiment is as follows:

During the connection assembly process, the user places the waveguide 32 portion of the first waveguide 3 to be connected radially through the radial channel 21 into the through hole 22 of one of the second connectors 2, the waveguide flange 31 being received in the groove 23 of that second connector 2. Subsequently, the first connector 1 is rotated clockwise or counterclockwise until it is completely screwed, and the connection of the first end of the first connector 1 with the second connector is completed. Next, the user aligns the waveguide flange 31 of the second waveguide 3 using a mark or a positioning pin, and completes the precise butt joint of the second waveguide flange 31 and the first waveguide flange 31. After that, the other second connector 2 is sleeved outside the waveguide tube 32 of the second waveguide 3 through the radial channel 21, and the second connector 2 is rotated to be fixed at the other end of the first connector 1, so that the quick connection of the two waveguide flanges 31 is completed. When the interconnection needs to be released, the reverse operation is only needed to be realized quickly.

Claims (8)

1. The quick waveguide flange connecting device comprises a hollow first connecting piece (1) which can be axially penetrated by a waveguide flange (31) and second connecting pieces (2) which are in threaded connection with the first connecting piece (1), and is characterized in that the number of the second connecting pieces (2) is two, the two second connecting pieces can be respectively in threaded connection with two ends of the first connecting piece (1), the middle part of each second connecting piece (2) is provided with an axially extending through hole (22), the inner diameter of each through hole (22) is smaller than the outer diameter of the waveguide flange (31), meanwhile, the peripheral wall of each second connecting piece (2) is provided with radial channels (21) which penetrate through the two end faces of the second connecting piece (2) and the through holes (22), and the radial channels (21) can be used for a waveguide tube (32) of a waveguide (3) to radially enter the through holes (22).

2. The quick connection device for waveguide flanges according to claim 1, characterized in that the two second connection elements (2) have, on their opposite end faces, respectively, grooves (23) axially recessed and communicating with the through holes (22), which grooves (23) are intended to receive waveguide flanges (31).

3. Waveguide flange quick connection according to claim 2, characterized in that the first connection piece (1) has an external thread as a hollow stud and the second connection piece (2) has an internal thread as a hollow sleeve adapted to the first connection piece (1).

4. A waveguide flange quick connect device according to claim 3, characterized in that the internal thread of the second connector (2) is provided on the inner side wall of the recess (23).

5. Waveguide flange quick connection according to claim 2, characterized in that the groove (23) depth of the second connection piece (2) is not greater than the axial thickness of the connected waveguide flange (31).

6. Waveguide flange quick connection according to any of claims 1 to 5, characterized in that the outer side wall of the second connection piece (2) has anti-slip threads (24).

7. A quick connection for waveguide flanges according to any one of claims 1 to 5, characterized in that the peripheral wall of each second connection element (2) is further provided with at least one pair of planes (25) for clamping by a clamping element, two planes (25) of each pair of planes (25) being located respectively beside the radial channel (21).

8. Waveguide flange quick connection according to any of claims 1 to 5, characterized in that the radial channels (21) have the same width as the inner diameter of the through holes (22).