JP3365381B2 - Connection fixing structure of waveguide and waveguide clamper - Google Patents

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Conventionally, in order to connect and fix two waveguides at a flange portion, in many cases, fixing by screw fastening is performed. However, for high-frequency equipment that requires maintenance and inspection, and measurement layer equipment that requires the measurement object to be replaced, it is necessary to frequently connect and disconnect the waveguide,
There is a demand for simplicity of connection and fixation of the waveguide.

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

[0004]

However, in the disclosed waveguide flange clamper, connecting and fixing and disconnecting the two waveguide flanges by the operation of the above-mentioned stopper is rather troublesome, and the guide pin is not used. There is a drawback in that it is considerably difficult to attach the receiving fitting to the receiving fitting with a precise tolerance.

In addition, the waveguide flange clamper is usually separated from the waveguide with a flange at a normal time, and an accident such as loss may occur.

Therefore, an object of the present invention is to eliminate the above-mentioned drawbacks of the prior art, to make it easier to connect and disconnect two waveguides, and to guide the guide pin to the waveguide flange. An object of the present invention is to provide a waveguide connecting and fixing structure which can be easily inserted and in which loss of connecting and fixing components can be prevented, and a waveguide clamper used for the above connecting and fixing.

[0007]

A waveguide connecting / fixing structure according to the present invention is a waveguide connecting / fixing structure capable of connecting / fixing and unfixing a first waveguide and a second waveguide at end faces of flanges of the both. Of the first and second waveguides, which are separately arranged on both sides of the long sides of the first and second waveguides, and which are held on the back surface of the flange of the first waveguide to hold the first waveguide and the first waveguide. Two waveguide clampers are provided for connecting and fixing the two waveguides and having the aperture positioning mechanism for the first and second waveguides.

In the waveguide connecting / fixing structure, each of the waveguide clampers is parallel to the long side of the first waveguide on the back side of the end face of the flange of the first waveguide. It can be configured to be slidable.

In the structure for connecting and fixing the waveguide, 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. Parallel to each other, and two oval holes are provided at positions sandwiching the short side of the first waveguide, and the two oval holes are penetrated through the oval holes except for the head portion of the first waveguide. It can be configured to be held between the first and second special bolts including the screw portion fastened to the flange and the flange of the first waveguide.

In the connection fixing structure for the waveguide, the aperture positioning mechanism for the first and second waveguides corresponds to the elliptical position of the waveguide clamper and the flange for the second waveguide. The pin hole portion formed at the position and the tip portion of the first special bolt, and the pin hole portion so that the diameters of the first waveguide and the second waveguide are within the tolerance. And a pin portion to be inserted into.

In the structure for connecting and fixing the waveguide, the first special bolt and the second special bolt are arranged at substantially diagonal corners of the flange of the first waveguide. Can be configured.

The waveguide clamper according to the present invention is a waveguide clamper capable of connecting and fixing the first and second waveguides at the flange end faces of both the first and second waveguides. Placed separately on both sides of the long side of the wave tube,
A special bolt holds the back surface of the flange of the first waveguide to connect and fix the first waveguide and the second waveguide, and the diameters of the first and second waveguides. It has a positioning mechanism.

In the waveguide clamper, each of the waveguide clampers is parallel to the long side of the first waveguide on the back side of the end face of the flange of the first waveguide. In addition, two elliptical holes are provided at positions sandwiching the short side of the first waveguide, and the first guide is formed by penetrating the elliptical holes except for the head of the special bolt. A structure capable of sliding 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]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

1A and 1B are structural views of a waveguide connecting and fixing structure according to an embodiment of the present invention, wherein FIG. 1A is a top view and FIG.
Shows a side view. 2A and 2B are partial cross-sectional views of FIG. 1A, in which FIG. 2A is a cross-sectional view taken along line A1-A2, and FIG.
Two sectional views are shown.

Referring also to FIGS. 1 and 2, the waveguide 3
Of the rectangular waveguide section 3a and the flange 3b are joined together such that the end surfaces thereof are flush with each other. In the waveguide 4, the rectangular waveguide section 4a and the flange 4b are flush with each other. Are joined together. The clampers (waveguide clampers) 1A and 1B having the same structure are for simply connecting and fixing and releasing the waveguides 3 and 4 by using the special bolts 2A1 and 2A2 and the special bolts 2B1 and 2B2. is there. The special bolts 2A1 and 2A2 are also used for aligning the apertures of the waveguide portions 3a and 4b (calibration of apertures). Waveguides 3 and 4
Means that the end face of the flange 3b and the end face of the flange 4b are butted against each other and connected and fixed (see FIG. 1 (b)). That is, the clampers 1A and 1B are separately arranged with the rectangular long sides of the waveguide portions 3a and 3b sandwiched therebetween, and the tips of the clampers 1A and 1B are bent inward and the U-shaped clamp metal fitting 1a is bent. The end face of the flange 3b and the end face of the flange 4b are connected and fixed by the elastic restoring force of.

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 metal fitting 1a and a clamp handle 1b (1b
1 and 1b2). The clamp metal fitting 1a is a plate-shaped elastic metal bent in a substantially U-shape. However, while the portion of the flange 3b that contacts the back side of the end surface is substantially flat, the plate-shaped portion of which the tip portion contacts the back side of the end surface of the flange 4b is bent slightly toward the flange 4b. In addition, the waveguide 3a (and 4 of the clamp metal fitting 1a
The length of the part parallel to b) is the thickness of the flange 3b and 4b.
It is a little longer than the combined thickness. In addition, in the plate-like portion of the clamp metal fitting 1a corresponding to the four corners on the diagonally opposite side of the end face of the flange 3b, there are four oval-shaped ellipses through which special bolts 2A1 and 2A2 and special bolts 2B1 and 2B2, which will be described in detail later, penetrate. The bolt through holes 5A to 5D are opened. Each of the bolt through holes 5A to 5D is arranged in parallel to the long side of the waveguide portion 3b and at positions sandwiching the short side (positions outside the short side). Bolt through hole 5
The oval axes A to 5D can move the clampers 1A and 1B from the flange 3b in the perspective direction (left and right in FIG. 1A).
Direction.

One end of the flat plate-shaped clamp handle 1b1 is fixed to the flat plate portion of the clamp metal fitting 1a which is the back side of the end face of the flange 3b, and the other end is the waveguide portion 3 of the flange 3b.
It is a length protruding from an end portion parallel to the short side of a. Also,
One end of the plate-shaped clamp handle 1b2 has a flange 4b.
Is fixed to the flat plate portion of the clamp metal fitting 1a which is the back side of the end surface of the clamp metal fitting, and the other end is parallel to the short side of the waveguide portion 3a of the flange 4b from the flat plate partially contacting the back side of the end surface of the flange 4b of the clamp metal fitting 1a. It projects further outside the end.

The clamp metal fitting 1a of the clamper 1A is held on the flange 3b by the special bolts 2A1 and 2B2 at the portion contacting the back side of the end surface of the flange 3b. Further, the clamp metal fitting 1a of the clamper 1B is held by the flange 3b by the special bolts 2A2 and 2B1 at the portion contacting the back side of the end surface of the flange 3b. Therefore, 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 so that the clamp metal fitting 1a has a U-shape. State (state in which the flanges 3b and 4b can be separated: FIG. 1
(See (b)) to the flange 3b like the clamper 1B.
The clamp handle 1b1 and the other end of the clamp handle 1b2 is pulled out, and the part of the clamp metal fitting 1a that abuts against the back side of the end face of the flange 4b is slightly bent toward the flange 4b (see FIG. 1 (b)). Back 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 2A arranged at the corners of the flanges 3b and 4b, which are substantially diagonal to each other.
A2, together with the special bolts 2B1 and 2B2, has a role of holding the clampers 1A and 1B on the flange 3b, and a role of a pin (guide pin) for properly adjusting the diameters of the waveguide sections 3a and 4b (FIG. 2). (See (a)). That is, the special bolt 2A1 (and 2A2) has a head portion 2a1 thicker than the short diameter of the bolt through hole 5C of the clamp fitting 1a,
A seat portion 2a2 thicker than the plate thickness of the clamp metal fitting 1a, a male screw portion 2a3 fastened to a female screw portion 3b1 of the flange 3b,
This is a structure in which the pin hole portion 4b1 of the flange 4b and the pin portion 2a4, which is fitted with a clearance within a predetermined tolerance, are sequentially connected.
Naturally, the female screw portion 3b of the flange 3b and the flange 4
The pin hole portion 4b1 of b must be arranged so that the diameters of the waveguide portions 3a and 4b coincide with each other within a predetermined tolerance.

Further, the special bolts 2A1 and 2A2, which are arranged at the corners of a diagonal line different from each other by approximately 90 degrees, are provided.
B1 and 2B2 have a role of holding the clampers 1A and 1B on the flange 3b together with the special bolts 2A1 and 2A2 (see FIG. 2B). That is, the special bolt 2B1 (and 2B2) has a head portion 2b1 thicker than the short diameter of the bolt through hole 5D of the clamp metal fitting 1a, a seat portion 2b2 thicker than the plate thickness of the clamp metal fitting 1a, and a female screw portion 3b1 of the flange 3b. This is a structure in which the tightened male screw portion 2b3 is sequentially connected. However, the special bolts 2B1 and 2B2 do not have a pin portion at the tip. The clamp metal fitting 1a is the head 2a of the special bolts 2A1, 2A2, 2B1 and 2B2.
1 and the back surface (back side of the end surface) of the flange 3b.

Here, the special bolts 2A1, 2A2, 2B
In 1 and 2B2, the lengths of the seat portions 2a2 and 2b2 are made longer than the plate thickness of the clamp metal fitting 1a, and the clamp metal fitting 1a causes the back surface (side) of the flange 3b to extend in the long axis direction of the ellipse of the bolt through holes 5A to 5D. In other words, the waveguide is slidable parallel to the long side of the waveguide. In addition, special bolts 2A1, 2A
A2, 2B1 and 2B2 have driver insertion holes for screw fastening in the head portions 2a1 and 2b1, and the male screw portions 2a3 and 2b3 are fastened to the female screw portion 3b1 of the flange 3b, and the two clamp fittings 1a are attached to the flange 3a. Hold between the back side. Further, the pin portions 2a4 at the tips of the special bolts 2A1 and 2A2 are fitted and inserted into the pin hole portions 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 aligning the diameters of the waveguide portions 3a and 4b. It should be noted that arranging only the special bolts 2A1 and 2A2 having the pin portion 2a4 substantially on the diagonal line on the back side of the end face of the flange 3b has the effect of making it easy to match the diameters of the waveguide portion 3a and the waveguide portion 4b. There is.

Next, the operation of fixing the connection between the waveguide 3 and the waveguide 4 and releasing the connection fixation (also referred to as releasing the fixation) in the waveguide connection fixing structure shown in FIG. 1 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.
It is sandwiched by the special bolts 2A1 and 2B2 and the special bolts 2A2 and 2B1 on the back side of the end face of the and held respectively. That is, the special bolts 2A1 and 2B2 are attached to the clamp metal fitting 1a.
The male screw portion 2a3 and the female screw portion 3b1 of the flange 3b penetrating the bolt through holes 5C and 5A, respectively, 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 hole portions 4b1 of the flange 4b. To this end, the flange 3b
Of the clamper 1A by aligning the end face of the flange with 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 metal fitting 1a must be formed in a U-shape by gripping the.

Next, from the above state, the clampers 1A and 1B are slid as close to the waveguide 3 and the waveguide 4 as possible,
Remove the force that brings the clamp handles 1b1 and 1b2 closer together. Then, the tip end portion of the clamp handle 1b2 strongly abuts on the back side of the end surface of the flange 4b by the elastic restoring force of the clamp metal fitting 1a, and the end surface of the flange 3b and the end surface of the flange 4b are strongly abutted to each other to guide the waveguide 3 and the waveguide. Connection and fixation with 4 is completed.

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

As described above, the waveguide connecting and fixing structure according to the embodiment of FIG. 1 has two clampers 1A having a simple structure in order to fix and release the connection between the flanged waveguides 3 and 4. And 1B and two types of special bolts 2A1, 2A
B2 and 2A2, 2B1 are required, and the operation is simple. Further, in this waveguide connection fixing structure, the clampers 1A and 1B and the special bolts 2A1, 2B2 and 2A2, 2B1 are usually coupled to the waveguide 3, so that the waveguide connection component is lost. There is a feature that such an accident does not occur.

[0028]

As described above, according to the present invention, the first and second waveguides are separately arranged on both sides of their long sides 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 the two waveguide clampers having the second waveguide diameter positioning mechanism are provided, so that connection and fixation of the two waveguides can be further simplified, and at the same time, the guide pin can be connected to the waveguide flange. It is easy to insert, and there is an effect that parts such as a waveguide clamper for connection and fixing can be completely lost.

[Brief description of drawings]

1A and 1B are structural views of a waveguide connection fixing structure according to an embodiment of the present invention, in which FIG. 1A is a top view and FIG. 1B is a side view.

FIG. 2 is a partial cross-sectional view of FIG. 1 (a), where (a) is A1.
-A2 sectional view, (b) has shown B1-B2 sectional view.

[Explanation of symbols]

1A, 1B clamper 1a Clamp bracket 1b (1b1, 1b2) Clamp handle 2A1, 2A2, 2B1, 2B2 Special bolt 2a1, 2b1 head 2a2, 2b2 seat 2a3, 2b3 Male thread 2a4 pin part 3,4 Waveguide 3a, 4a Waveguide section 3b, 4b flange 3b1 Female thread 4b1 pin hole 5A-5D Bolt through hole

─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-9-158320 (JP, A) JP-A-48-50312 (JP, A) Actual flat 3-126568 (JP, U) Actual flat 2- 82105 (JP, U) Actual opening Flat 7-38411 (JP, U) Actual opening Sho 59-195801 (JP, U) Actual opening Sho 64-15895 (JP, U) Actual opening Sho 62-61501 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) H01P 1/04 F16L 23/036

Claims (6)

(57) [Claims] 1. A waveguide connecting and fixing structure capable of connecting and fixing the first and second waveguides at the flange end surfaces of the both, wherein the lengths of the first and second waveguides are long. The first waveguide and the second waveguide are separately arranged on both sides of the side and held on the back surface of the flange of the first waveguide to connect and fix the first waveguide and the second waveguide. Two waveguide clampers having two waveguide aperture positioning mechanisms, each of the waveguide clampers having a first waveguide flapper
On the long side of the first waveguide on the back side of the end face of the
A structure for connecting and fixing waveguides that can slide in parallel . 2. Each of the waveguide clampers is parallel to the long side of the first waveguide on the back side of the end face of the flange of the first waveguide and is parallel to the first side of the first waveguide. Two oval holes are provided at positions sandwiching the short side of the waveguide, and a screw part that penetrates the oval hole except the head and is fastened to the flange of the first waveguide is provided. 2. The waveguide connecting and fixing structure according to claim 1, wherein the structure is held between the first and second special bolts including the flange and the flange of the first waveguide. 3. A bore hole positioning mechanism for the first and second waveguides, and a pin hole portion arranged at a flange position of the second waveguide corresponding to an oval position of the waveguide clamper. A pin portion that is formed at the tip of the first special bolt and that is inserted into the pin hole so that the diameters of the first waveguide and the second waveguide are within the tolerance. The connection fixing structure for a waveguide according to claim 2, wherein . Wherein said first special bolt and said second special bolt, according to claim 3, characterized in that it is arranged substantially in corners on a diagonal line of the flange of the first waveguide
A structure for connecting and fixing a waveguide as described. 5. A waveguide clamper capable of connecting and fixing and releasing the fixation of the first and second waveguides at the flange end faces of the both, wherein both sides of the long sides of the first and second waveguides. Are arranged separately from each other, and are held on the back surface of the flange of the first waveguide by a special bolt to connect and fix the first waveguide and the second waveguide, and the first and second waveguides. 2. A waveguide clamper having a waveguide diameter positioning mechanism of 2. 6. Each of the waveguide clampers is parallel to the long side of the first waveguide on the back side of the end face of the flange of the first waveguide and is parallel to the first side of the first waveguide. Two elliptical holes are provided at positions sandwiching the short side of the waveguide, and the flange of the first waveguide is penetrated through the elliptical hole except the head of the special bolt. The fastener is fastened and held between the head of the special bolt and the flange of the first waveguide so that it can slide parallel to the long side of the first waveguide. 5. The waveguide clamper according to item 5 .