JPH04131010U - Parabolic antenna elevation adjustment device - Google Patents

Abstract

(57) [Summary] (with modifications) [Purpose] To quickly and accurately adjust the elevation angle. [Structure] A rear frame 1 is attached to the back of the parabolic antenna. The rear frame 1 is provided with a protruding piece 7, which is rotatably attached to the upper end of a support frame 8 erected on a support stand 11 by bolts 9 and nuts 10. bolt 9
A support piece 12 is provided below the support piece 12, and the guide block 13 is rotatably supported by the support piece 12.
It is rotatably attached to the inclined rod 6 via an intermediary frame 19. Further, a first nut 16 and a second nut 18 are screwed onto the threaded rod 15 via the guide block 13. The parabolic antenna is rotated about the bolt 9 by pushing up or pulling the inclined rod 6 with the screw rod 15. Nut 26 screwed onto bolt 23 passing through long hole 25 provided in rotating rod 24
The adjusted elevation angle state is maintained by tightening.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to an elevation adjustment device for a parabolic antenna.

0002

[Conventional technology]

As a conventional technique of this type, there is a device disclosed in Japanese Utility Model Publication No. 1768/1983.

0003 The antenna elevation angle adjusting device of the same invention has a center piece at the upper end of the support and a A mounting base frame consisting of side pieces formed by bending both sides downward is placed, and the center piece is A support frame is provided directly above the through hole provided on the rear end side, and an adjustment button for fine adjustment of the elevation angle is attached to the center piece. Pass through the bolt and screw the nut engaged with the vertical movement frame onto the tip, and then Suspend the moving frame, pass through the support cylinder through holes provided on both sides of the vertical movement frame, and attach the support cylinder to both ends. Abut the elongated holes on both sides of the mounting base frame, and provide threaded portions at both ends of the support tube and the elongated holes. At the same time as passing through the girder bolt rods, attach the threaded parts of the bolt rods that protrude outward from both sides to the mounting plate. Insert it into the through hole provided on both sides of the frame, screw the nut onto the tip, and attach it to the attached base frame. Assemble the attachment plate, and attach the bolt to which the support tube and the attachment base frame are attached to the rear part of the attachment plate. A rod insertion hole is provided, and a large number of rods are placed on the same circumference around the insertion hole in the front part. A row of through holes for coarse elevation adjustment are provided, and a screw and nut inserted into any of the through holes allow The mounting plate is assembled with the mounting plate, and in order to adjust the elevation angle using the device, the mounting plate must be Insert a screw into an appropriate hole among the many holes arranged in a row, and tighten the pair of holes with a nut. The elevation angle of the antenna can be adjusted by temporarily fixing the mounting plate to the mounting base frame at an appropriate angle. After making the rough settings, turn the adjustment bolt and nut that penetrate the support frame with a spanner, etc. The vertical moving frame suspended by the adjusting bolt and nut and both sides of the vertical moving frame are By slightly moving the support tube inserted into the through hole in the vertical direction, it penetrates into the support tube. The mounting plate attached to the tip of the bolt is raised and lowered through the bolt rod, and the mounting base of the mounting plate is After finely adjusting the mounting angle to the frame, each part is tightened and fixed.

0004

[Problems with conventional technology] The elevation angle adjustment according to the conventional example described above is now performed in two steps: rough adjustment and fine adjustment. The length of the adjustment bolt for fine adjustment is passed through the support cylinder that moves in the vertical direction. The length of the bolt is limited so that it does not come into contact with the bolt rod, etc. The adjustment range is limited, and a large number of through holes for rough adjustment are required on the mounting plate. Therefore, if it is difficult to make an appropriate selection, and the selection is found to be inappropriate, it may be necessary to During work, it is necessary to remove the attached bolts and nuts, select an appropriate through hole, and reassemble. This is not desirable as it wastes a lot of time.

[0005] The present invention compensates for the drawbacks of the conventional example and provides a parameter that allows for quick and accurate elevation adjustment. It is an object of the present invention to provide a device for adjusting the elevation angle of a bolet antenna.

[0006]

[Problem that the idea aims to solve]

The protrusion on the rear frame that is attached to the back of the parabolic antenna and supports the parabolic antenna. The protrusion piece is rotatably attached to the upper end of the support frame, and the protrusion piece is pivotably attached to the upper end of the support frame, and the protrusion piece is pivotably attached to the upper end of the support frame. The guide block is rotatably supported on a pair of support pieces provided in the support frame. The first nut and the second nut are inserted through the guide block into the screw rod that is loosely passed through the inner block. Two nuts are screwed directly or indirectly into the guide block so that they can be freely approached and separated, and the protruding At the middle part of the inclined part of the back frame, which is arranged in a direction crossing the part, is the same as the pivot joint part. An intermediary frame is rotatably mounted in the direction, and the upper end of the screw rod is attached to the free end of the intermediary frame. furthermore, a tightening bolt is provided at the lower end of the inclined portion in the same direction as the pivot portion. is provided protrudingly, and the tightening bolt is passed through a long hole provided in the rotating rod so that it protrudes from the long hole. A tightening nut is screwed onto the tip of the tightening bolt, and the lower end of the rotating rod is attached to the support frame. It has a structure in which it is rotatably pivoted to.

[0007]

【Example】

The drawings show an embodiment of the elevation adjustment device for a parabolic antenna according to the present invention, and FIG. is a side view, Figure 2 is an enlarged partially cutaway side view, Figure 3 is a partially cutaway enlarged rear view, and Figure 4 is a screw rod. FIG. 3 is a partially cutaway enlarged side view showing the relationship between the first nut and the second nut.

[0008] In the figure, 1 is attached to the back of the parabolic antenna 80 and the parabolic antenna 80 is The rear frame 1 is attached to the center of the parabolic antenna 80 and is attached to the rear side. A main cylinder 2 protruding in the direction and a T-shaped auxiliary frame 3 welded to the tip of the main cylinder 2. Support rods 4, 4, . . . are constructed as appropriate between the antenna and the parabolic antenna 80. It is something.

[0009] The T-shaped auxiliary frame 3 has an upper rod 5 made of a square tube and a square tube whose upper end is welded to the upper rod 5. and an upper rod 5 with one end of the support rods 4, 4 attached to both ends. Protruding pieces 7, 7 are provided with an inclined rod 6 interposed in the middle part, and the protruding pieces 7 is rotatably attached to the upper end of the support frame 8 by bolts 9 and nuts 10. Ru. That is, the parabolic antenna 80 is connected to the bolt via the protruding pieces 7, 7 of the rear frame 1. The angle of elevation is changed by rotating around the pivot point 9.

0010 The support frame 8 is placed on a support stand 11, and the bolts 9 of the support frame 8 are A pair of support pieces 12, 12 are provided at the opposite positions, and a guide block is attached to the support pieces 12, 12. The guide block 13 is rotatably supported, and a screw is inserted into the insertion hole 14 provided in the guide block 13. 15 is loosely passed through the threaded rod 15, and a first nut is attached to the lower end side of the threaded rod 15 that protrudes from the insertion hole 14. 16, and a second nut 18 via a spacer 17 on the upper end side of the guide block 1. The spacer 17 is screwed directly or indirectly into the guide block 1 so as to be able to come into contact with and be separated from the guide block 1. 3, loosely pass through the screw rod 15 and assemble it to the screw rod 15, and operate the second nut 18. In order to prevent the support piece 12 from getting in the way during assembly, the support piece 12 and the second nut 18 are This is to maintain a gap between the two.

[0011] The inclined rod 6 of the T-shaped auxiliary frame 3 crosses the protruding direction of the protruding piece 7. In the middle part of this inclined rod 6, there is a middle part arranged in the same direction as the bolt 9. An intermediary frame 19 is rotatably pivoted 20, and the upper end of the screw rod 15 is passed through the intermediary frame 19. A nut 21 is then screwed onto this to attach the upper end of the threaded rod 15 to the intermediary frame 19.

0012 Additionally, an L-shaped rod 22 is attached to the lower end of the inclined rod 6 so as to be parallel to the upper rod 5. Then, pass the tightening bolt 23 through the flat piece 22a fixed to the end of the L-shaped rod 22. , the tip of the tightening bolt 23 is passed through the elongated hole 25 provided in the rotating rod 24, and inserted into it. A tightening nut 26 is screwed on.

[0013] The rotating rod 24 has its upper end as a free end, and its lower end is connected to the support frame 8 with bolts 27 and It is rotatably pivoted by a screw nut 28.

[0014] To adjust the elevation angle, loosen nuts 10, 28 and tightening nut 26. If you want to reduce the elevation angle of the antenna, move the second nut 18 in the direction of the inclined rod 6. When the first nut 16 is moved in the direction of moving the inclined rod 6, the screw rod 15 descends along the first nut 16 to obtain an appropriate elevation angle, and Conversely, by moving the first nut 16 in a direction away from the inclined rod (downward direction), When the second nut 18 is rotated in a direction away from the inclined rod 6, the screw rod 15 is rotated away from the second nut. It rises along the nut 18 to obtain a large elevation angle, and the nuts 10, 28 and tightening The appropriate angular condition is maintained by tightening the nut 26.

[0015]

[Effect of the idea]

Since the present invention has the above-mentioned structure, the degree of loosening of the first nut or the second nut is By adjusting the angle appropriately, you can first make rough adjustments to the elevation angle setting, and then proceed to fine adjustment operations. Since the angle of elevation can be adjusted quickly and accurately, there is no wasted work.

[Brief explanation of drawings]

FIG. 1: Side view.

FIG. 2 is a partially cutaway enlarged side view.

FIG. 3 is a partially cutaway enlarged rear view.

FIG. 4 is a partially cutaway enlarged side view showing the relationship between a screw rod, a first nut, and a second nut.

[Explanation of symbols]

1 Back frame 6 Slanted rod 7 Projecting piece 8 Support frame 12 Support piece 13 Guide block 15 Spiral rod 16 First nut 18 Second nut 19 Intermediary frame 24 Rotating rod 26 Tightening nut 80 parabolic antenna

Claims (1)

[Scope of utility model registration request] 1. A protruding piece of a back frame that is attached to the back of a parabolic antenna to support the parabolic antenna is rotatably pivoted to the upper end of the support frame, and the support is attached at a lower position of the pivot part. A guide block is rotatably supported on a pair of support pieces provided on the frame, and a first nut and a second nut are directly attached to the guide block through a threaded rod that loosely penetrates the guide block. Alternatively, the intermediary frame is rotated in the same direction as the pivoting part at the intermediate part of the inclined part of the back frame, which is indirectly screwed together so as to be freely accessible and detachable, and which is arranged in a direction crossing the protruding part. The upper end of the screw rod is attached to the free end of the intermediary frame, and a tightening bolt is provided protruding from the lower end of the inclined piece in the same direction as the pivoting part,
The tightening bolt is passed through an elongated hole provided in the rotating rod, and a tightening nut is screwed onto the tip of the tightening bolt protruding from the elongated hole, so that the lower end of the rotating rod is rotatably pivoted to the support frame. The elevation adjustment device for the parabolic antenna.