Satellite antenna tuner focal length adjusting device

Abstract

The utility model discloses a satellite antenna tuner focal length adjusting device, which comprises a foot stool, a telescopic rod, a supporting rod and a clamping piece, the height of the foot stool is adjustable, the telescopic rod is arranged at the top of the foot stool, is configured to rotate in the vertical direction and is used for adjusting the position of a tuner in the vertical direction, and the supporting rod is arranged at one end, far away from the foot stool, of the telescopic rod. And the clamping piece is arranged at one end, far away from the telescopic rod, of the supporting rod, and is used for clamping the feed source disc. The adjusting device is independent of a satellite antenna, the device body does not need to be disassembled and assembled repeatedly when the adjusting device is used for multiple times, front-back, left-right and pitching angle adjustment of the feed source disc and the tuner can be achieved, and therefore the bit error rate is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of satellite antennas, in particular to a satellite antenna high-frequency head focal length adjustment device. Background Art

[0002] The satellite receiving antenna is mainly composed of a parabola, a feed dish and a high-frequency head. The high-frequency head is installed on the feed dish, and the feed dish is installed on the parabola through several support rods. The parabola antenna reflects the satellite signal energy in the air and converges it to the high-frequency head at the focal position. The high-frequency head down-converts and amplifies the signal and sends it to the satellite receiver, which then decodes the satellite signal.

[0003] However, the spliced ​​parabolic dish surface may deform during transportation or use, causing the position of the high-frequency head to shift (i.e., focus shift), resulting in a high bit error rate or interruption of the received satellite signal.

[0004] A portable satellite antenna structure is disclosed in Chinese patent CN105811068A, specifically, a high-frequency head adjustment frame is installed on a reflector (parabola) to adjust the antenna to the star angle. However, the high-frequency head adjustment frame is installed on the rear-end fixed disk of the reflector through a rotation adjustment ring. The inner hole diameter of the rotation adjustment ring is larger than the diameter of the rear-end fixed disk, but it cannot be too much larger. The rotation adjustment ring is too large and cannot form an effective connection with the rear-end fixed disk. The rotation adjustment ring inner diameter is smaller than the diameter of the rear-end fixed disk, and the high-frequency head adjustment frame cannot be fixed either. Therefore, its versatility is poor and cannot be applied to satellite antennas of various sizes. In addition, the high-frequency head adjustment frame is one-to-one corresponding to the satellite antenna. When adjusting the high-frequency head of another satellite antenna, the high-frequency head adjustment frame needs to be removed and reassembled, and repeated disassembly and assembly cause trouble when using. And to completely remove the high-frequency head adjustment frame, the support of the satellite antenna needs to be separated from the connecting rod, and the rotation adjustment ring can be removed from the rear-end fixed disk, and the separation process will cause the high-frequency head and the reflector to change in position.

[0005] Based on this, a high-frequency head adjustment device which is easy to use and has good versatility is needed. Utility Model Content

[0006] In view of the above problems, the utility model provides a satellite antenna high-frequency head focal length adjustment device, which is easy to use, can be used repeatedly, is suitable for satellite receiving antennas of various sizes, and can effectively reduce the bit error rate.

[0007] Specifically, the utility model is achieved as follows:

[0008] A satellite antenna high-frequency head focal length adjustment device, comprising:

[0009] A tripod, configured to be height-adjustable;

[0010] A telescopic rod, disposed on the top of the tripod and configured to rotate in an up-and-down direction;

[0011] The support rod is arranged at one end of the telescopic rod away from the tripod and is configured to rotate in left and right directions;

[0012] A clamping member, provided at one end of the support rod away from the telescopic rod, for clamping the feed plate;

[0013] A number of guy wires are arranged on the support rods to simulate the fixing rods of the feed dish and the parabola.

[0014] Furthermore, the telescopic rod is connected step by step by a base rod and at least one connecting rod to form a multi-stage telescopic structure. The base rod is hinged to the top of the tripod and is fastened by a first fixing nut.

[0015] Furthermore, a threaded block is provided on the base rod, and the connecting rod is provided with a section, whose end close to the support rod is provided at a stopper, and the adjusting screw passes through the threaded block and is connected to the stopper, and the adjusting screw is used to drive the stopper to move in a direction parallel to the axis of the telescopic rod to drive the telescopic rod to extend and retract.

[0016] Furthermore, a hand wheel is provided at one end of the adjusting screw away from the stopper.

[0017] Furthermore, the clamping member comprises:

[0018] A base is fixed to an end of the support rod away from the telescopic rod;

[0019] The clamping claw is arranged on the base and is configured as an openable and closable structure for clamping the feed plate.

[0020] Furthermore, an automatic wire take-up device corresponding to the number of pull wires is provided on a side of the base away from the feed disk, and the pull wires are arranged in the automatic wire take-up device.

[0021] Working principle:

[0022] When in use, place the tripod 1 in front of the satellite receiving antenna, fix the high-frequency head 61 on the feed plate 62, and clamp the feed plate 62 with the clamp 4, and make the receiving end of the high-frequency head 61 face the satellite receiving antenna parabola 63, so that the signal reflected by the parabola 63 can be normally received by the high-frequency head 61. When clamping the feed plate 62, the connection point of the fixed rod on the feed plate 62 needs to correspond to the pull line 52, and the feed plate 62 is rotated upward to determine the position. After the feed plate 62 is fixed, connect the spectrum analyzer with the RF line, and then extend the telescopic rod 2 to the approximate position of the satellite receiving antenna feed source to start fine-tuning. You can first turn the support rod 3 left and right, and then turn the telescopic rod 2 up and down until the best signal is seen on the spectrum analyzer.

[0023] Then pull the pull wire 52 to the connection point of the fixed rod of the parabola 63 and fix it, simulating the installation position of the fixed rod used to fix the feed plate 62. Then connect the two ends of the fixed rod to the feed plate 62 and the parabola 63 respectively. After the position of the feed plate 62 is fixed, untie the pull wire 52, loosen the feed plate 62, and complete the adjustment.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] (1) The satellite antenna high-frequency head focal length adjustment device provided by the utility model is independent of the satellite antenna. When used multiple times, there is no need to repeatedly disassemble and assemble the device body, and the feed plate and the high-frequency head can be adjusted in front and back, left and right, and in pitch, thereby effectively reducing the bit error rate.

[0026] (2) The device can preliminarily determine the rotation direction of the feed disk at the initial stage of adjustment, and can simulate the position of the feed disk fixing rod by pulling a wire, thereby improving the accuracy of the fixing rod installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of the satellite antenna high-frequency head focal length adjustment device in Example 1;

[0028] Figure 2 is a cross-sectional view of the telescopic rod in Example 1;

[0029] Figure 3 An exploded view of the telescopic rod and the support rod in Example 1;

[0030] Figure 4 This is a schematic diagram of the operation of the satellite antenna high-frequency head focus adjustment device in Example 1;

[0031] Figure 5 is a schematic structural diagram of the clamping member in Example 1;

[0032] Figure 6 is a cross-sectional view of the automatic wire take-up device in Example 1;

[0033] Figure 7 This is a usage status diagram of the satellite antenna high-frequency head focus adjustment device in Example 1.

[0034] Reference numerals:

[0035] 1-tripod; 2-telescopic rod; 21-base rod; 22-connecting rod; 23-adjusting screw; 24-threaded block; 25-stopper; 26-handwheel; 27-first fixing nut; 3-support rod; 31-second fixing nut; 4-clamping piece; 41-base; 42-clamping claw; 43-bolt; 5-automatic wire take-up device; 51-housing; 52-pull wire; 53-wire reel shaft; 54-spring; 61-high-frequency head; 62-feed source plate; 63-parabola. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0037] Example 1

[0038] like Figure 1 As shown, this embodiment provides a satellite antenna high-frequency head focal length adjustment device, including: a tripod 1, a telescopic rod 2, a support rod 3 and a clamp 4. The tripod 1 adopts a height-adjustable tripod to provide reliable device stability, and the tripod 1 can be adjusted to a suitable height according to the height and size of the satellite receiving antenna and the height of the operator, so as to facilitate the subsequent adjustment of the high-frequency head focal length.

[0039] like Figure 2 As shown, one end of the telescopic rod 2 is hinged to the top of the tripod 1, and the other end is hinged to the support rod 3, which includes: a base rod 21 and a connecting rod 22 nested on the base rod 21, a threaded block 24 is provided on the end of the base rod 21, and the end of the connecting rod 22 close to the support rod 3 is provided on the stopper 25, and the adjusting screw 23 passes through the threaded block 24 and is connected to the stopper 25. Rotating the adjusting screw 23 can push / pull the stopper 25 and the connecting rod 22 to move along the axial direction of the base rod 21, thereby achieving the purpose of telescoping the telescopic rod 2.

[0040] like Figure 3 As shown, a U-shaped seat is provided on the top of the tripod 1, and the end of the base rod 21 is connected to the U-shaped seat through a pin shaft and is locked by a first fixing nut 27. When the position of the telescopic rod 2 needs to be adjusted up and down, the first fixing nut 27 is loosened, and the telescopic rod 2 is rotated up and down to a suitable position, and then locked by the first fixing nut 27. Similarly, the support rod 3 is connected to the telescopic rod 2 with a similar structure, and is fastened with a second fixing nut 31 to achieve adjustment of the support rod 3 in the left and right directions. Figure 4 As shown, the telescopic rod 2 and the support rod 3 can be used to adjust the up and down position (actually the distance from the parabola 63) and the left and right position (the position on the parabola 63) of the high-frequency head 61, so as to find the best satellite alignment position.

[0041] like Figure 5 As shown, the clamping member 4 is arranged at one end of the support rod 3 away from the telescopic rod 2, and includes: a base 41 and three clamping claws 42, the clamping claws 42 are hinged to the base 41, and bolts 43 are provided thereon. When installing the feed plate 62, the clamping claws 42 are opened, and after the feed plate 62 is placed, the clamping claws 42 are closed, and then the feed plate 62 is clamped by the bolts 43.

[0042] A plurality of automatic wire take-ups 5 are provided on one side of the base 41 away from the feed plate 62. The automatic wire take-ups 5 are mounted on the support rod 3 in a snap-fit ​​manner. Figure 6As shown, the automatic wire take-up device 5 adopts a conventional automatic wire take-up box, which includes a shell 51 and a reel shaft 53. A metal spring 54 is provided inside the reel shaft 53, and the pull wire 52 is wound around the reel shaft 53. When the pull wire 52 is pulled out, the reel shaft 53 is driven to rotate, thereby pulling the metal spring 54. When it automatically contracts, the reel shaft 53 is driven to rotate in the opposite direction by the resilience of the metal spring 54, thereby automatically winding the pull wire 52 onto the reel shaft 53.

[0043] like Figure 7 As shown, when the device is used, the tripod 1 is first placed in front of the parabola 63, the high-frequency head 61 is fixed on the feed plate 62, and then the feed plate 62 is installed on the clamp 4. When clamping, the connection point of the fixed rod on the feed plate 62 needs to correspond to the pull wire 52, and the feed plate 62 is rotated upward to determine the position. After the feed plate 62 is fixed, the spectrum analyzer is connected with the RF line, and then the adjustment screw 23 is rotated to extend the telescopic rod 2, so that the feed plate 62 and the high-frequency head 61 move forward to the approximate position of the satellite receiving antenna feed source and start fine-tuning. The support rod 3 can be rotated left and right first, and then the telescopic rod 2 can be rotated up and down until the best signal is seen on the spectrum analyzer.

[0044] Then pull the pull wire 52 to the connection point of the fixed rod of the parabola 63 and fix it, simulating the installation position of the fixed rod used to fix the feed plate 62 to determine whether there is any offset in the installation position of the fixed rod, which may cause installation inconvenience. If it can be installed normally, connect the two ends of the fixed rod to the feed plate 62 and the parabola 63 respectively. After the feed plate 62 is fixed, untie the pull wire 52, loosen the bolt 43, and complete the adjustment.

[0045] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. A satellite antenna high-frequency head focus adjustment device, characterized in that: include: A tripod (1) configured to be height-adjustable; A telescopic rod (2) is arranged on the top of the tripod (1) and is configured to rotate in an up-and-down direction; A support rod (3) is arranged at one end of the telescopic rod (2) away from the tripod (1) and is configured to rotate in left and right directions; A clamping member (4), arranged at one end of the support rod (3) away from the telescopic rod (2), and used for clamping the feed plate (62); A plurality of pull wires (52) are arranged on the support rod (3) and are used to simulate the fixing rods of the feed plate (62) and the parabola (63).

2. The satellite antenna high-frequency head focus adjustment device as claimed in claim 1, characterized in that: The telescopic rod (2) is formed by connecting a base rod (21) and at least one connecting rod (22) step by step to form a multi-stage telescopic structure. The base rod (21) is hinged to the top of the tripod (1) and is fastened by a first fixing nut (27).

3. The satellite antenna high-frequency head focus adjustment device as claimed in claim 2, characterized in that: The base rod (21) is provided with a threaded block (24), the connecting rod (22) is provided with a section, one end of which close to the support rod (3) is provided with a stopper (25), the adjusting screw (23) passes through the threaded block (24) and is connected to the stopper (25), and the adjusting screw (23) is used to drive the stopper (25) to move in a direction parallel to the axis of the telescopic rod (2) so as to drive the telescopic rod (2) to extend and retract.

4. The satellite antenna high-frequency head focus adjustment device as claimed in claim 3, characterized in that: A hand wheel (26) is provided at one end of the adjusting screw rod (23) away from the stopper (25).

5. The satellite antenna high-frequency head focus adjustment device as claimed in claim 1, characterized in that: The clamping member (4) comprises: A base (41) is fixed to an end of the support rod (3) away from the telescopic rod (2); The clamping claw (42) is disposed on the base (41) and is configured as an openable and closable structure for clamping the feed plate (62).

6. The satellite antenna high-frequency head focus adjustment device as claimed in claim 5, characterized in that: An automatic wire take-up device (5) corresponding to the number of the pulling wires (52) is provided on one side of the base (41) away from the feed plate (62), and the pulling wires (52) are arranged in the automatic wire take-up device (5).

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