JPH04114207U - Parabolic antenna angle adjustment device - Google Patents

Abstract

(57) [Summary] (with modifications) [Purpose] Easily fine-tune the azimuth and elevation angle of a large parabolic antenna. [Structure] A base plate 4 of a support base frame 3 is placed on a support plate 1 provided at the upper end of a support column 2, and is pivotally connected with a screw 7 and a nut 9. The board 4 is provided with elongated holes 10, 10 extending along a circle with the screw 7 in the center. Loosen the screwed nut 14 and remove the substrate 4, that is, the support base frame 3.
By rotating , the azimuth angle of the parabolic antenna 50 attached to the side plate 5 of the support base frame 3 via the attachment plate 22 can be finely adjusted. The mounting plate 22 is rotatably attached to the side plate 5 of the support base frame 3 by a shaft screw, and a long hole 25 along an arc centered on the shaft screw 23 is provided in the side plate 5.
When the screw 26 passed through the elongated hole 25 is loosened, the mounting plate 22 rotates around the shaft screw 23, and the elevation angle of the parabolic antenna 50 can be adjusted.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to an angle adjustment device for a parabolic antenna for receiving satellite broadcasting. Ru.

0002

[Conventional technology]

As a conventional example, there is, for example, one disclosed in Japanese Utility Model Publication No. 1768/1983.

0003 In the case of the same known example, the elevation angle adjustment device is attached to the side plate of the mounting frame fixed to the upper end of the column. Select an appropriate hole from among the many holes lined up on the same arc, and insert bolts and nuts. After temporarily fixing the mounting plate to the mounting base frame and determining the approximate elevation angle, Finely adjust the elevation adjustment bolt that passes through the support frame fixed to the center piece by turning it with a tool such as a spanner. There is an adjustment structure, and the azimuth adjustment structure is attached to the parabolic antenna. The antenna has a certain height (usually around 1m) so that the lower end of the antenna does not touch the ground surface. A system in which the connecting bolt between the bottom end of the pillar and the foundation material installed on the ground surface serves as a rotation guide. It is set aside.

0004

[Problem that the idea aims to solve]

The elevation angle and direction depend on the latitude and longitude of the parabolic antenna installation location (local area). Because it is necessary to adjust the angle and properly face the antenna in the direction in which the radio waves arrive, The adjustment procedure is to determine the approximate direction and install the mounting device on the ground or rooftop. Then, after determining the approximate elevation angle and temporarily fixing, attach the antenna to the device, and then After fixing, fine-tune the elevation and azimuth angles several times to find the correct position, and then fix the Generally speaking, antennas are used in any country in the world. In order to properly face the direction in which the radio waves arrive, the adjustment range of the elevation angle is approximately 90 degrees. ° It is necessary to have.

[0005] However, with the structure of the conventional example, when adjusting the elevation angle, it is necessary to It is physically impossible to maintain the height of the support frame fixed at the end above a certain level (the back of the antenna is in contact with the The elevation angle adjustment range is reduced. ), the fine adjustment bolt had to be shortened, and the fine adjustment The range will naturally become smaller. Therefore, through-holes should be arranged in parallel on the side plate of the bolt mounting base frame. This is dealt with by increasing the number of Incidentally, in the case of the conventional example, the elevation of the fine adjustment bolt is The angle adjustment angle is about ±5°, so the pitch of the through holes is about 10°, which is a small amount. At least nine through holes are required, which is wasteful both in terms of processing and processing. In addition, when adjusting the azimuth angle, first loosen the foundation material and connecting bolts and nuts. It is necessary to perform the operation with the antenna at the center of the antenna. Since the antenna is far away and eccentric, the weight of the antenna may cause the entire mounting device to become unstable. The antenna is tilted slightly toward the antenna, so even if you make fine adjustments in this state, the When the antenna is tilted, the direction of the antenna is at the correct position. After that, fully tighten the bolts and nuts mentioned above, the column will be displaced vertically, and the antenna will be The disadvantage is that the orientation tends to deviate from the proper position.

[0006] Also, during fine adjustment operations, elevation adjustment and azimuth adjustment are repeated alternately. However, as mentioned above, in the conventional example, the two devices are far apart, and it is necessary to stand or squat each time. The work efficiency is poor as it requires repeated work.

[0007] The present invention aims to improve the drawbacks of such conventional examples, and can be provided at low cost. To provide an angle adjustment device for a parabolic antenna that can be easily finely adjusted by one person. It was devised for the purpose.

[0008]

[Means to solve the problem]

A support base frame consisting of a substrate and side plates erected on opposite sides of the substrate is supported. It is placed on a base plate and pivoted so that it can rotate in the horizontal direction, and on a concentric circle centered on the pivot part. A plurality of elongated holes are provided in the substrate along the same line, and the elongated holes and the through hole provided in the support plate are connected to each other. A nut material is screwed onto the tip of the first tightening screw passed through, and the substrate in the nut material is A screw hole is provided horizontally on the top side, and the head is placed upright on the board in this screw hole. At the same time, the tip of the first adjustment screw received by the pressure-receiving piece is screwed into the support base frame. A mounting plate protruding from the back of the parabolic antenna is rotatably attached to the side plate of the parabolic antenna. A long hole along an arc centered on the mounting portion is provided in the side plate, and a long hole is provided in the long hole and the mounting plate. Insert the tip of the second tightening screw passed through the through hole into the screw at the end of the intermediary rod passed between the side plates. a second adjustment screw which is screwed into the slave hole and whose head is received by the pressure rod which is passed between the side plates; The tip end is screwed into a screw hole provided in the intermediate portion of the intermediate rod.

[0009]

【Example】

The drawings show an embodiment of the parabolic antenna angle adjustment device according to the present invention, and FIG. is a front view, FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1, and FIG. 3 is a cross-sectional view taken along line B-B in FIG. FIG. 4 is a sectional view taken along the line CC.

0010 1 in the figure is a support plate provided at the upper end of the support column 2, and the support base frame 3 is placed on the support plate 1. It is pivoted so that it can rotate freely in the horizontal direction.

[0011] The support base frame 3 consists of a substrate 4 and side plates 5, 5 standing on both sides of the substrate 4. A through hole 6 is provided in the center of the support plate 4, and the tip of the pivot screw 7 passing through the through hole 6 is inserted into the support plate. 1 through the first through hole 8 provided in the screw 7, and a nut is inserted into the tip of the screw 7 that protrudes from the first through hole 8. The support base frame 3 is rotatably assembled to the support plate 1 as described above by screwing the holes 9 together.

0012 Further, the substrate 4 of the support base frame 3 is provided with a concentric circle centered on the first through hole 8. Long holes 10, 10, 10, 10 are provided, and the long holes 10, 10, 10, 10 and supports are provided. The first tightening screws 12, 13, 13 are inserted into the second through holes 11, 11, 11, 11 provided in the panel 1. , 13 and protrudes from the second through hole 11. The first tightening screw 13 has a nut at its tip. A nut material 1 is attached to the tip of the first tightening screw 12 that protrudes from the elongated hole 10. 5 are screwed together.

[0013] A screw hole 16 is provided in the nut material 15, and the tip of the first adjustment screw 17 is inserted into this screw hole 16. The ends are screwed together.

[0014] The first adjustment screw 17 includes a narrow diameter portion 19 provided in the middle of a head 18 having a hexagonal cross section. In addition, the narrow diameter portion 19 is erected on the base plate 4 of the support base frame 3, and a notch is provided in the pressure receiving piece 20. 19a, and a regulating piece 21 is fixed near the pressure receiving part 20, and the regulating piece 21 is fixed to the pressure receiving part 20. The piece 21 is positioned directly above the head 18 to restrict the position of the first adjustment screw 17.

[0015] Mounting plates 22, 22 are attached to the side plates 5, 5 of the support base frame 3 on the outer surface side with shaft screws 2. 3, 23 and nuts 24, 24, and the shaft screw 23 , 23 are provided in the side plates 5, 5 along an arc centered on the holes 25, 23. It is written.

[0016] The illustrations 26, 26 indicate the elongated holes 25, 2 through the through holes 25 of the mounting plates 22, 22. 5 through the elongated holes 25, 25 of the second tightening screws 26, 26. An intermediary rod 27 with a U-shaped cross section interposed above between the side plates 5 and 5 has a protruding tip. The nut materials 28, 28 engaged at both ends are screwed together, and the intermediary rod 27 is attached to the nut materials 28 and 28. and is disposed across the side plates 5, 5 via the second tightening screw 26.

[0017] A nut clamping piece 30 is fixed to the middle part of the intermediary rod 27, and the nut clamping piece 30 The nut material 29 is engaged in the gap formed by the intermediate rod 27 and the second adjustment screw 3 1 is screwed into this nut material 29 through a clamping piece 30.

[0018] Like the first adjustment screw 17, the second adjustment screw 31 has a head 3 having a hexagonal cross section. 2, the narrow diameter portion 33 is provided between the side plates 5, 5. The pressure receiving rod 34 is engaged with and supported by a notch 34a provided at an intermediate portion.

[0019] Directly above the head 32 of this second adjustment screw 31 is a regulating piece fixed to the pressure receiving rod 34. 21 is arranged.

[0020] The mounting plate 22 is screwed to the base frame 51 provided on the back of the parabolic antenna 50, and It is arranged so as to protrude from the back surface of the laboratory antenna 50.

[0021] The present invention adjusts the azimuth and elevation angle of a parabolic antenna, but the embodiment The azimuth angle adjustment of the position is performed by operating the first adjustment screw 17.

[0022] When the first adjustment screw 17 is rotated, the first adjustment screw 17 advances along the nut material 15. As a result of this forward and backward movement, the head 18 moves to the pressure receiving part 20 erected on the base plate 4 of the support base frame 3. by pressing in a direction approaching the parabolic antenna 50 or pulling in a direction away from the parabolic antenna 50, Along with this, the nut material 15 rotates around the first tightening screw 12, and 3 rotates around the pivot screw 7, so that the azimuth angle adjustment of the parabolic antenna 50 is possible. direction by tightening each first tightening screw 12, 13, 13, 13. The angular position is set.

[0023] In addition, when adjusting the elevation angle, when the second adjustment screw 31 is rotated, the second adjustment screw 31 is The narrow diameter portion of the head 18 is engaged with and received by the notch 19a of the pressure receiving piece 20 provided upright on the base plate 4. Therefore, the second adjustment screw 31 itself rotates but does not move forward or backward, so it is inevitable that A nut material 29 screwed onto the tip of the screw advances and retreats along the second adjustment screw 31. Therefore, The intermediate rod 27 to which the nut material 29 is attached will not move forward or backward together with the nut material 29. Ru. a second tightening screw connected to the nut material 29 via an intermediary rod and the nut material 28; The child 26 moves along the elongated hole 25, and as a result, the mounting plate 22 moves around the shaft screw 23. The parabolic antenna 50 is rotated, the elevation angle of the parabolic antenna 50 is adjusted, and the second tightening screw 26 is tightened. By doing so, the work of setting the position of the parabolic antenna 50 in the elevation direction is completed.

[0024]

[Effect of the idea]

Since the present invention has the configuration as described above, the azimuth and elevation angles of the parabolic antenna are Therefore, the angle adjustment work can be done in a circular manner. It can be done smoothly and quickly and has good workability.

[Brief explanation of drawings]

FIG. 1: Front view.

FIG. 2 is a sectional view taken along the line A-A in FIG.

FIG. 3 is a sectional view taken along the line B-B in FIG.

FIG. 4 is a sectional view taken along line C-C in FIG.

[Explanation of symbols]

1 Support plate 3 Support base frame 4 Substrate 5 Side plate 10 long hole 11 Second through hole 12 First tightening screw 13 First tightening screw 14 Nut material 15 Nut material 16 Screw hole 17 First adjustment screw 18 First adjustment screw head 20 Pressure receiving piece 22 Mounting plate 25 long hole 26 Second tightening screw 27 Intermediary rod 28 Nut material 29 Nut material 34 Pressure rod 35 Through hole

Claims (1)

[Scope of utility model registration request] Claim 1: A substrate of a support base frame consisting of a substrate and side plates erected on opposite sides of the substrate is placed on a support plate and pivotally connected to be horizontally rotatable; A plurality of elongated holes are provided in the substrate along concentric circles centered on the part, and a nut material is attached to the tip of the first tightening screw that passes through the elongated holes and the through hole provided in the support plate. A first screw hole is provided horizontally in the nut material disposed on the upper surface side of the substrate, and the head portion is received in the screw hole by a pressure receiving piece provided upright on the substrate. In addition to screwing the tips of the adjustment screws together, a mounting plate protruding from the back of the parabolic antenna is rotatably attached to the side plate of the support base frame, and a long hole is formed along an arc centered at the pivot point. is provided in the side plate, and the tip of a second tightening screw passed through the elongated hole and the through hole provided in the mounting plate is screwed into the screw hole at the end of the intermediary rod passed between the side plates, and the head An angle adjustment device for a parabolic antenna, wherein a tip of a second adjustment screw whose portion is received by a pressure rod extending between the side plates is screwed into a screw hole provided in an intermediate portion of the intermediate rod.