JP2001196801A - Waveguide connection fixing structure and waveguide clamper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waveguide connection fixing structure capable of simplifying the connection fixing and the connection releasing of waveguides and capable of completely avoiding losing the parts of a waveguide clamper, etc., for fixing connection. SOLUTION: The connection fixing and the fixing release of waveguides 3 and 4 are performed at the end faces of the flanges 3b and 4a of both of them. The clampers 1A and 1b are arranged separated on both sides of the long edges of the waveguide part 3a and 4b, are held on the backside of the flange 3a of the waveguide 3 to fix the connection of the waveguide 3 and the waveguide 4, and have the aperture diameter positioning mechanism of both of the waveguides. The connection of the waveguides 3 and 4 are fixed by the elastic recovery force of a U-shaped metallic clamp 1a. The clampers 1A and 1B are held by special bolts 2A1, 2A2, 2B1 and 2B2 on the rear side of the end face of a flange 3b but can be slid in parallel to the long edge of the part 3a. Consequently, the clampers 1A and 1B can be removed from the flange 4a and the connection release of the waveguides 3 and 4 is easy.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waveguide connection fixing structure for connecting and fixing two waveguides at a flange portion, and a waveguide clamper used for the connection and fixing.

[0002]

2. Description of the Related Art Conventionally, in order to connect and fix two waveguides at a flange, fixing is often performed by screwing. However, in high-frequency devices that require maintenance and inspection, measurement layer devices that require replacement of the device under test, etc., it is necessary to frequently connect and disconnect the waveguide,
There is a demand for simplicity in fixing and releasing connection of the waveguide.

As an example satisfying such requirements, Japanese Utility Model Application Laid-Open No. 62-61501 (name of the invention: waveguide flange clamper) is disclosed. The disclosed waveguide flange clamper includes a receiving metal fitting for fixing a guide pin to be inserted into a pin hole provided in the waveguide flange, a holding metal fitting for holding a flange overlapped with both sides from both sides,
By providing a stopper for fixing the receiving member and the holding member to each other and holding the connection state of the flange, the connection of the waveguide flange can be easily performed without using a tool.

[0004]

However, in the disclosed waveguide flange clamper, it is somewhat troublesome to fix and disconnect the two waveguide flanges by operating the stopper. There is a drawback in that it is quite difficult to attach to the above-mentioned metal fittings with a close tolerance.

[0005] In addition, the waveguide flange clamper is usually separated from the flanged waveguide in many cases, and there is an accident that it is lost.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned disadvantages of the prior art, to make connection and disconnection of two waveguides easier, and to provide a guide pin to a waveguide flange. An object of the present invention is to provide a waveguide connection / fixing structure that can be easily inserted and can be used without loss of connection / fixing parts, and a waveguide clamper used for the connection / fixing.

[0007]

SUMMARY OF THE INVENTION According to the present invention, there is provided a waveguide connection / fixing structure for connecting and releasing a first and a second waveguide at both flange end surfaces. Wherein the first waveguide and the second waveguide are separately disposed on both sides of a long side of the first and second waveguides, and are held on a back surface of a flange of the first waveguide. And two waveguide clampers for connecting and fixing the two waveguides and having a diameter positioning mechanism for the first and second waveguides.

[0008] In the connection fixing structure for a waveguide, each of the waveguide clampers may be parallel to a long side of the first waveguide on the back side of an end face of a flange of the first waveguide. It can be configured to be slidable.

[0009] The connection fixing structure of the waveguide may be such that each of the waveguide clampers is arranged on the back side of the end face of the flange of the first waveguide with respect to the long side of the first waveguide. And two oblong holes are provided at positions parallel to each other and across the short side of the first waveguide, and penetrate through the oblong hole except for the head portion of the first waveguide. It is possible to adopt a configuration in which the first and second special bolts including a screw portion fastened to the flange and the flange of the first waveguide are held.

[0010] In the connection fixing structure for a waveguide, the caliber positioning mechanism of the first and second waveguides may include a flange of the second waveguide corresponding to an elliptical position of the waveguide clamper. And a pin hole formed at a tip end of the first special bolt, the pin hole being formed so that the apertures of the first waveguide and the second waveguide are within a tolerance. And a pin portion to be inserted into the connector.

[0011] In the connection fixing structure of the waveguide, the first special bolt and the second special bolt are respectively arranged at substantially diagonal corners of a flange of the first waveguide. Configuration can be taken.

The waveguide clamper according to the present invention is a waveguide clamper which can fix and release the first and second waveguides at the end faces of the two flanges, wherein the first and second waveguides are fixed. Placed separately on both sides of the long side of the tube,
The first waveguide is connected to and fixed to the second waveguide by being held on the back surface of the flange of the first waveguide by a special bolt, and the diameters of the first and second waveguides are fixed. It has a positioning mechanism.

[0013] The waveguide clamper may be configured such that each of the waveguide clampers is parallel to a long side of the first waveguide on the back side of the end face of the flange of the first waveguide. Further, two elliptical holes are provided at positions sandwiching the short side of the first waveguide, and the first waveguide extends through the elliptical hole except for the head of the special bolt. A structure that can be slid parallel to the long side of the first waveguide by being fastened to the flange of the waveguide and held between the head of the special bolt and the flange of the first waveguide. Can be taken.

[0014]

Next, the present invention will be described with reference to the drawings.

FIG. 1 is a structural view of a waveguide connection fixing structure according to an embodiment of the present invention, wherein FIG. 1A is a top view, and FIG.
Shows a side view. 2 is a partial sectional view of FIG. 1A, FIG. 2A is a sectional view taken along line A1-A2, and FIG.
2 shows a sectional view.

Referring to FIGS. 1 and 2, the waveguide 3
Is formed by joining a rectangular waveguide portion 3a and a flange 3b so that the end faces thereof are flush with each other. The waveguide 4 has a rectangular waveguide portion 4a and a flange 4b which are flush with each other. So that they are joined together. Clampers (waveguide clampers) 1A and 1B having the same structure are used for simply connecting and fixing the waveguides 3 and 4 using special bolts 2A1 and 2A2 and special bolts 2B1 and 2B2. is there. The special bolts 2A1 and 2A2 are also used for adjusting the diameter of the waveguide sections 3a and 4b (calibration positioning). Waveguides 3 and 4
Is connected and fixed by abutting the end face of the flange 3b and the end face of the flange 4b (see FIG. 1B). In other words, the clampers 1A and 1B are separately arranged with the rectangular long sides of the waveguide sections 3a and 3b interposed therebetween, and the U-shaped clamp fitting 1a having the clampers 1A and 1B with the tips bent inward. By the elastic restoring force, the end face of the flange 3b and the end face of the flange 4b are connected and fixed.

Since the clampers 1A and 1B have the same structure, the structure will be described with the clamper 1A as a representative. The clamper 1A includes a clamp 1a and a clamp handle 1b (1b
1 and 1b2). The clamp fitting 1a is a plate-like elastic metal bent in a substantially U-shape. However, while the portion corresponding to the back side of the end surface of the flange 3b is substantially flat, the plate-shaped portion whose front end portion corresponds to the back side of the end surface of the flange 4b is slightly bent toward the flange 4b. The waveguide 3a (and 4) of the clamp 1a
The length of the part parallel to b) is the thickness of the flange 3b and 4b
It is slightly longer than the combined thickness. In addition, special bolts 2A1, 2A2 and four elliptical holes through which special bolts 2B1, 2B2 to be described later are inserted are formed in the plate-like portions of the clamp fitting 1a corresponding to the four corners on the diagonal line on the back side of the end face of the flange 3b. Bolt through holes 5A to 5D are drilled. Each of the bolt through holes 5A to 5D is arranged in a position parallel to the long side of the waveguide portion 3b and at a position sandwiching the short side (outside of the short side). Bolt through hole 5
The elliptical axes of A to 5D can move the clampers 1A and 1B in the near and far directions from the flange 3b (left and right in FIG. 1A).
Direction.

One end of the plate-like clamp handle 1b1 is fixed to a plate portion of the clamp 1a, which is on the back side of the end face of the flange 3b, and the other end is the waveguide portion 3 of the flange 3b.
The length protrudes from the end parallel to the short side of a. Also,
One end of the flat clamp handle 1b2 is a flange 4b.
The other end is parallel to the short side of the waveguide portion 3a of the flange 4b from the flat plate partly in contact with the back side of the end surface of the flange 4b of the clamp 1a. It protrudes further outside the end.

The clamp 1a of the clamper 1A is held on the flange 3b by special bolts 2A1 and 2B2 at a portion abutting on the rear side of the end face of the flange 3b. Further, the clamp 1a of the clamper 1B is held on the flange 3b by special bolts 2A2 and 2B1 at a portion abutting on the back side of the end face of the flange 3b. Accordingly, the clampers 1A and 1B are separated from the flange 3b like the clamper 1A, and the other ends of the clamp handles 1b1 and 1b2 are brought close to each other by a human hand or the like so that the clamp 1a approaches a U-shape. State (flange 3b and 4b can be separated: FIG. 1)
(See (b)), the flange 3b like the clamper 1B
And the portion of the clamp fitting 1a that comes into contact with the rear side of the end face of the flange 4b is slightly bent toward the flange 4b side (see FIG. 1 (b)) by releasing the force applied to both other ends of the clamp handles 1b1 and 1b2. To return to flange 3
b and the flange 4b are connected and fixed, that is, the waveguides 3 and 4 are connected and fixed.

Here, the special bolts 2A1 and 2A2 are arranged at corners substantially diagonal to the flanges 3b and 4b.
A2 has a role of holding the clampers 1A and 1B on the flange 3b together with the special bolts 2B1 and 2B2, and a role of a pin (guide pin) for properly adjusting the diameter of the waveguide portions 3a and 4b (FIG. 2). (A)). That is, the special bolt 2A1 (and 2A2) has a head 2a1 that is thicker than the short diameter of the bolt through hole 5C of the clamp 1a,
A seat portion 2a2 thicker than the plate thickness of the clamp 1a, a male screw portion 2a3 for fastening to the female screw portion 3b1 of the flange 3b,
This is a structure in which pin holes 4b1 of the flange 4b are sequentially connected to pin portions 2a4 which are fitted into the gaps within a predetermined tolerance.
Naturally, the female thread 3b of the flange 3b and the flange 4
It is necessary to arrange the pin holes 4b1 of b so that the apertures of the waveguide portions 3a and 4b coincide within a predetermined tolerance.

Further, the special bolt 2 disposed at a diagonal corner which is different from the special bolts 2A1 and 2A2 by approximately 90 degrees.
B1 and 2B2 hold the clampers 1A and 1B together with the special bolts 2A1 and 2A2 on the flange 3b (see FIG. 2B). In other words, the special bolt 2B1 (and 2B2) has the head 2b1 larger than the short diameter of the bolt through hole 5D of the clamp 1a, the seat 2b2 thicker than the plate thickness of the clamp 1a, and the female screw 3b1 of the flange 3b. This is a structure in which the male screw portions 2b3 to be fastened are sequentially connected. However, the special bolts 2B1 and 2B2 do not have a pin at the tip. In addition, the clamp 1a is a head 2a of the special bolts 2A1, 2A2, 2B1 and 2B2.
1 and the back surface of the flange 3b (the back side of the end surface).

Here, the special bolts 2A1, 2A2, 2B
1 and 2B2, the length of the seats 2a2 and 2b2 is longer than the plate thickness of the clamp 1a, and the clamp 1a extends the back surface (side) of the flange 3b in the major axis direction of the oval bolt through holes 5A to 5D. That is, it is possible to slide and move in parallel with the long side of the waveguide. In addition, the special bolts 2A1, 2A
A2, 2B1 and 2B2 have screwdriver insertion holes for screw fastening in the heads 2a1 and 2b1, fasten the male screw portions 2a3 and 2b3 to the female screw portion 3b1 of the flange 3b, and connect the two clamps 1a to the flange 3a. Hold it between the back. Further, the pin portions 2a4 at the tips of the special bolts 2A1 and 2A2 are fitted and inserted into the pin holes 4b1 of the flange 4b, and the diameters of the waveguide portions 3a and 4b match within a predetermined tolerance. Since the special bolts 2B1 and 2B2 do not have a pin portion, they are not used for adjusting the diameter of the waveguide portions 3a and 4b. It should be noted that only the special bolts 2A1 and 2A2 having the pin portions 2a4 are arranged substantially diagonally on the back side of the end face of the flange 3b, because the diameter of the waveguide portion 3a and the diameter of the waveguide portion 4b can be easily matched. There is.

Next, with respect to the waveguide connection fixing structure shown in FIG. 1, the operation of connecting and releasing the connection between the waveguide 3 and the waveguide 4 and releasing the connection (also referred to as release) will be described.

In order to connect and fix the waveguide 3 and the waveguide 4, first, the two clampers 1A and 1B are connected to the flange 3b.
Are held between the special bolts 2A1 and 2B2 and the special bolts 2A2 and 2B1 on the back side of the end surfaces of the two. That is, the special bolts 2A1 and 2B2 are connected to the clamp 1a.
The male screw portion 2a3 penetrating through the bolt through holes 5C and 5A respectively and the female screw portion 3b1 of the flange 3b are fastened. At this time, the pin portions 2a4 at the tips of the special bolts 2A1 and 2A2 must be fitted and inserted into the pin holes 4b1 of the flange 4b. For this purpose, the flange 3b
Of the flange 4b and the end face of the flange 4b.
And 1B as far as possible from the outer surfaces of the flanges 3b and 4b, and the clamp handles 1b1 and 1b2
The clamp 1a must be formed in a U-shape by, for example, gripping the clamp.

Next, from the above-described state, the clampers 1A and 1B are slid toward the waveguides 3 and 4 as much as possible.
Release the force to bring the clamp handles 1b1 and 1b2 closer. Then, the distal end of the clamp handle 1b2 comes into strong contact with the back side of the end face of the flange 4b due to the elastic restoring force of the clamp fitting 1a, and the end face of the flange 3b and the end face of the flange 4b are strongly butted against each other. 4 is completed.

On the other hand, in order to release the fixing between the waveguide 3 and the waveguide 4, first, the force for bringing the other ends of the clamp handles 1b1 and 1b2 closer to each other is released (the clamp handle 1b1).
And force to bring the other ends of 1b2 closer to each other). Then, the end face of the flange 3b by the clamp 1a and the flange 4
Since there is no force to abut the end face of the flange b, the fixing force between the flange 3b and the flange 4b is released. Next, the clamp handles 1b1 and 1b2 are connected to the flanges 3b and 4
b, the flanges 3b and 4b
Can be separated, and the fixing of the waveguide 3 and the waveguide 4 can be released.

As described above, the waveguide connection fixing structure according to the embodiment shown in FIG. 1 has two simple clampers 1A for fixing and releasing connection between the flanged waveguides 3 and 4. And 1B and two types of special bolts 2A1 and 2A2
B2, 2A2, and 2B1 are required, and the operation is simple. Further, in this waveguide connection fixing structure, since the clampers 1A and 1B and the special bolts 2A1 and 2B2 and 2A2 and 2B1 are usually connected to the waveguide 3, the waveguide connection parts are lost. There is a feature that such accidents do not occur.

[0028]

As described above, according to the present invention, the first and second waveguides are separately arranged on both sides of the long side, and are held on the back surface of the flange of the first waveguide. The first waveguide and the second waveguide are connected and fixed together with the first waveguide.
And two waveguide clampers having a second waveguide diameter positioning mechanism, so that the connection and disconnection of the two waveguides can be further simplified, and the guide pins can be connected to the waveguide flanges. Insertion is easy, and there is an effect that parts such as a waveguide clamper for connection and fixing can be completely eliminated.

[Brief description of the drawings]

FIG. 1 is a structural view of a waveguide connection fixing structure according to an embodiment of the present invention, where (a) is a top view and (b) is a side view.

FIG. 2 is a partial cross-sectional view of FIG. 1A, where FIG.
-A2 sectional view, (b) has shown B1-B2 sectional view.

[Explanation of symbols]

 1A, 1B Clamper 1a Clamp fitting 1b (1b1, 1b2) Clamp handle 2A1, 2A2, 2B1, 2B2 Special bolt 2a1, 2b1 Head 2a2, 2b2 Seat 2a3, 2b3 Male thread 2a4 Pin 3,4 Waveguide 3a , 4a Waveguide section 3b, 4b Flange 3b1 Female thread section 4b1 Pin hole section 5A-5D Bolt through hole

Claims (7)

[Claims] 1. A connection and fixing structure for a waveguide, wherein said first and second waveguides can be connected and fixed at said flange end faces, and wherein said first and second waveguides are long. Separately arranged on both sides of the side, the first waveguide and the second waveguide are held by the back surface of the flange of the first waveguide to connect and fix the first waveguide and the second waveguide. A connection and fixing structure for a waveguide, comprising two waveguide clampers having two waveguide diameter positioning mechanisms. 2. Each of the waveguide clampers is provided with the first
2. The connection fixing structure for a waveguide according to claim 1, wherein the waveguide can be slid parallel to the long side of the first waveguide on the back side of the end face of the flange of the waveguide. 3. Each of the waveguide clampers is provided with the first
On the back side of the end face of the flange of the waveguide, two oblong holes are respectively provided at positions parallel to the long side of the first waveguide and sandwiching the short side of the first waveguide. A first and a second special bolt including a threaded portion that is screwed to the flange of the first waveguide through the oval hole except for the head, and 3. The connection fixing structure for a waveguide according to claim 2, wherein the structure is held between the flange and the flange. 4. A pin hole portion disposed at a flange position of the second waveguide corresponding to an elliptical position of the waveguide clamper, the aperture positioning mechanism of the first and second waveguides being provided. ,
A pin formed at the tip of the first special bolt and inserted into the pin hole so that the apertures of the first waveguide and the second waveguide are within a tolerance; 4. The connection fixing structure for a waveguide according to claim 3, wherein: 5. The first special bolt and the second special bolt are arranged at substantially diagonal corners of a flange of the first waveguide, respectively. A connection fixing structure for a waveguide as described in the above. 6. A waveguide clamper which can fix and release the first and second waveguides at the end faces of the two flanges, wherein both sides of the long sides of the first and second waveguides are provided. The first waveguide and the second waveguide are connected and fixed by being held on the back surface of the flange of the first waveguide by a special bolt, and the first and second waveguides are connected. 2. A waveguide clamper having a waveguide diameter positioning mechanism according to (2). 7. Each of said waveguide clampers is provided with said first
On the back side of the end face of the flange of the waveguide, two oblong holes are respectively provided at positions parallel to the long side of the first waveguide and sandwiching the short side of the first waveguide. In addition, the head of the special bolt and the first waveguide are fastened to the flange of the first waveguide through the oval hole except for the head of the special bolt. 7. The waveguide clamper according to claim 6, wherein the first waveguide is slidable parallel to a long side of the first waveguide by being held between the first waveguide and the flange.