CN219833023U - Leveling mechanism and satellite navigation antenna using same - Google Patents
Leveling mechanism and satellite navigation antenna using same Download PDFInfo
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- CN219833023U CN219833023U CN202320733293.9U CN202320733293U CN219833023U CN 219833023 U CN219833023 U CN 219833023U CN 202320733293 U CN202320733293 U CN 202320733293U CN 219833023 U CN219833023 U CN 219833023U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 34
- 230000033001 locomotion Effects 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 abstract description 12
- 230000008054 signal transmission Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of satellite angle adjustment, in particular to a leveling mechanism, which comprises a base arranged on an inclined plane facing to a pointing satellite; the base is connected with a supporting plate through telescopic rods, four telescopic rods are respectively positioned at four corner ends of the supporting plate, and the base, any two adjacent telescopic rods and the supporting plate are matched to form a hinge four-bar mechanism with a lockable shape, so that the supporting plate can do reciprocating swinging motion along the pitching direction of the antenna; the hinge shaft in the hinge four-bar mechanism can do reciprocating sliding motion along the direction perpendicular to the axis of the hinge shaft, and the moving direction of the hinge shaft and the extending and contracting direction of the corresponding telescopic rod are intersected with each other; the utility model can provide a horizontal installation reference plane so as to facilitate the adjustment of the pitching angle of the antenna, thereby aligning the antenna with a satellite and realizing the accurate transmission of signals.
Description
Technical Field
The utility model relates to the technical field of satellite angle adjustment, in particular to a leveling mechanism and a satellite navigation antenna using the same.
Background
The satellite navigation antenna is usually arranged at a designated position in the using process, and the satellite navigation antenna is aligned to a satellite in the space through adjusting the angle of the antenna, so that signal receiving is realized.
The adjustment of the antenna angle is divided into two steps, namely, the orientation of the antenna is adjusted, so that the antenna is aligned to the direction of a satellite in space; then, the pitching angle of the antenna is adjusted, so that the receiving end of the antenna and the satellite correspond to each other, and signal transmission is realized. The adjusting mode can improve the accuracy of the antenna receiving signals, and is widely applied. The utility model patent CN212162053U discloses a specific structure for realizing the adjusting mode, and the antenna device is assisted to be adjusted to steer through the matching use of a motor I, a motor II and a universal ball connecting piece; under the action of the first motor, the antenna device can do periodic phase movement; under the action of the motor II, the antenna device can do pitching motion so as to adjust the angle of the Beidou navigation antenna according to the requirements, and further accurately send or receive signals.
When the antenna in the prior art is installed, a horizontal plane is usually selected as an installation reference plane, so that the installation is convenient, and the adjustment of the angle of the antenna is facilitated. However, in an actual installation process, not all installation reference planes are horizontal planes; when the facing installation reference plane is an inclined plane, the antenna arranged on the installation reference plane is inclined to the satellite in spite of the orientation of the antenna, so that the pitching angle range of the antenna to be adjusted often exceeds the adjustment limit of the pitching angle adjusting mechanism of the antenna, the antenna cannot be adjusted to be aligned with the satellite under a specific pitching angle, and the signal transmission performance of the antenna cannot be maximized.
Disclosure of Invention
In order to avoid and overcome the technical problems in the prior art, the utility model provides a leveling mechanism and a satellite navigation antenna using the same. The utility model can provide a horizontal installation reference plane so as to facilitate the adjustment of the pitching angle of the antenna, thereby aligning the antenna to a satellite and maximally realizing the accurate transmission of signals.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a leveling mechanism comprising a base mounted on an inclined surface directed toward a satellite; the base is connected with a supporting plate through telescopic rods, four telescopic rods are respectively positioned at four corner ends of the supporting plate, and the base, any two adjacent telescopic rods and the supporting plate are matched to form a hinge four-bar mechanism with a lockable shape, so that the supporting plate can do reciprocating swinging motion along the pitching direction of the antenna;
the hinge shaft in the hinge four-bar mechanism can do reciprocating sliding motion along the direction perpendicular to the axis of the hinge shaft, and the moving direction of the hinge shaft and the extending and contracting direction of the corresponding telescopic rod are intersected with each other.
As still further aspects of the utility model: the four telescopic rods are symmetrically arranged in pairs, and the telescopic rods, the base and the supporting plate which are positioned on the same side of the symmetrical plane form a corresponding hinge four-bar mechanism; the hinge shafts of the two groups of hinge four-bar mechanisms, the central axes of which are mutually overlapped, can generate the reciprocating sliding motion.
As still further aspects of the utility model: the bottom of the supporting plate is provided with a waist-shaped hole, and the hole type length direction of the waist-shaped hole is parallel to the path direction of the reciprocating sliding motion; the hinge shaft is slidably disposed within the kidney-shaped aperture.
As still further aspects of the utility model: the telescopic rod comprises an outer sleeve rod hinged on the base and an inner sleeve rod sleeved in the outer sleeve rod in a sliding manner; the top end of the inner loop bar is provided with the hinge shaft;
the lower plate surface of the supporting plate is provided with a guide block, and the waist-shaped hole is formed in the guide block.
As still further aspects of the utility model: the inner loop bar corresponding to the hinge shaft is provided with a locking screw hole, the locking bolt and the locking screw hole are in threaded connection with each other, and the front end of the locking bolt penetrates through the locking screw hole and abuts against the side face of the guide block.
As still further aspects of the utility model: the outer loop bar is connected with a first bolt in a threaded manner, and the front end of the first bolt penetrates through the first screw hole and abuts against the bar body of the inner loop bar.
As still further aspects of the utility model: the support plate and the base are respectively provided with a support lug for hinging the corresponding end part of the telescopic rod, the corresponding end part of the sleeve rod is respectively connected with a second bolt in a threaded manner, and the front end of the second bolt penetrates through the second screw hole and abuts against the side surface of the support lug.
The satellite navigation antenna using the leveling mechanism is characterized in that the parabolic antenna body is arranged on the supporting plate, and the signal receiving surface of the antenna body points to the satellite; the bottom of the antenna body is hinged with the supporting plate, and the back of the antenna body is provided with a driving part which drives the antenna body to rotate around the corresponding hinged position so as to adjust the pitching angle of the antenna body.
As still further aspects of the utility model: the driving part comprises an outer rod hinged on the supporting plate, an inner rod is coaxially sleeved in the outer rod, the inner rod and the outer rod are in sliding fit with each other, and the telescopic end of the inner rod is hinged with the back of the antenna body; the outer rod is provided with a positioning piece for locking the position of the inner rod.
As still further aspects of the utility model: the outer rod is provided with a screw hole, the screw hole is internally connected with a bolt in a threaded manner, the front end of the bolt penetrates through the screw hole and abuts against the rod body of the inner rod, and the bolt forms the locating piece.
Compared with the prior art, the utility model has the beneficial effects that:
1. the base is fixedly arranged on the inclined plane, and provides an installation foundation for other components in the leveling mechanism so as to facilitate the step-by-step installation of subsequent components. The base, the telescopic rod and the supporting plate are matched with each other, so that a hinge four-bar mechanism with a lockable shape can be formed, and the flexibility of adjusting the supporting plate is improved; and the supporting plate can adjust the inclination angle of the supporting plate according to the inclination angle of the inclined surface under the action of the hinge four-bar mechanism, so that the defect that the pitching angle of the navigation antenna is limited in adjustment is overcome, the navigation antenna can be adjusted to a preset pitching angle, and accurate signal receiving is realized. The telescopic rod is arranged, so that the height of the supporting plate can be adjusted, the position of the navigation antenna is adjusted, the influence of shielding objects on the front side of the navigation antenna on signal transmission can be effectively avoided, and the stability of signal reception is improved.
2. Two sets of hinge four-bar mechanisms which are symmetrically arranged can provide four-point support for the support plate, and the stability of the support plate is improved. Any hinge shaft in the hinge four-bar mechanism can move along the direction perpendicular to the shaft axis, so that a corresponding telescopic rod can form a crank slide block structure, and further the crank slide block structure is matched with the hinge four-bar mechanism, and the upper plate surface of the support plate is positioned at a horizontal plane position by adjusting the telescopic length of the telescopic rod and the position of the slide block, so that the navigation antenna can be quickly and stably installed. The upper plate surface of the supporting plate provides a horizontal installation reference surface for the navigation antenna, the navigation antenna is not affected by the inclination angle of the inclined surface on the installation reference surface, namely, an inclination angle generated by the inclined surface is compensated without using a pitching angle adjusting mechanism of the navigation antenna, so that the navigation antenna can be subjected to angle adjustment according to a conventional pitching angle adjusting method, and the navigation antenna can be adjusted to a preset position, so that accurate signal transmission is realized.
3. The locking bolt is matched with the locking screw hole, so that the inner sleeve rod after the position adjustment is completed is fixed on the guide block, the guide block and the inner sleeve rod are prevented from sliding, and the stability of the support plate is improved. The second bolt is arranged, so that the angle of the telescopic rod after adjustment is not changed any more, and the position of the supporting plate is locked under the cooperation of the second bolt and the locking bolt, so that the leveling treatment of the supporting plate is finished.
4. The inner rod and the outer rod are in sliding fit with each other, so that the pitching angle of the antenna body can be adjusted; under the action of the first bolt, the pitching angle of the antenna body can be locked, and stable receiving signals are further achieved.
Drawings
Fig. 1 is a schematic structural view of a leveling mechanism in the present utility model.
Fig. 2 is a schematic side view of a leveling mechanism according to the present utility model.
Fig. 3 is a schematic view of the structure of the locking member according to the present utility model.
Fig. 4 is a schematic structural diagram of a satellite navigation antenna according to the present utility model.
Fig. 5 is a schematic structural diagram of an antenna body according to the present utility model.
Fig. 6 is a schematic diagram of an installation structure of a satellite navigation antenna according to the present utility model.
In the figure: 10. a base; 11. a telescopic rod; 111. an outer sleeve rod; 112. an inner loop bar; 1121. locking the screw hole; 1122. a locking bolt; 12. a support lug; 13. a second bolt; 20. a support plate; 21. a guide block; 211. a waist-shaped hole; 30. a navigation antenna; 31. an antenna body; 32. a driving section; 321. an outer rod; 322. an inner rod; 323. a positioning piece; 40. an inclined surface.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 6, the portable device comprises a base 10, wherein the base 10 is rectangular, and fixing legs are arranged at four corners of the base 10. The base 10 is mounted on the inclined surface 40, and the base 10 is fixed to the inclined surface 40 using an expansion screw. The inclined surface 40 is directed in the satellite direction, so that the rectangular parallelepiped base 10 mounted on the inclined surface 40 is also directed in the satellite direction.
The upper end face of the base 10 forms a mounting surface, four lugs 12 are fixedly mounted on the mounting surface, the four lugs 12 are symmetrically arranged in pairs, and telescopic rods 11 are hinged on the lugs 12. The telescopic rod 11 comprises an outer sleeve rod 111 hinged on the mounting surface through a support lug 12, an inner sleeve rod 112 is coaxially sleeved in the outer sleeve rod 111 in a sliding manner, and the top end of the inner sleeve rod 112 is hinged on the lower plate surface of the supporting plate 20 through the support lug 12. The outer sleeve rod 111 is provided with a locking member for locking the position of the inner sleeve rod 112, the locking member is a first bolt which is connected to the outer sleeve rod 111 in a threaded manner, and the front end of the first bolt passes through the first screw hole and abuts against the rod body of the inner sleeve rod 112. When the telescopic length of the inner sleeve rod 112 is adjusted, the first bolt is in a unscrewed state at this time; after the telescopic length of the inner race rod 112 is adjusted, the first bolt is tightened so that the front end of the first bolt abuts against the rod body of the inner race rod 112, thereby locking the position of the inner race rod 112. If necessary, the inner sleeve rod 112 and the outer sleeve rod 111 may be directly welded together to form a single body.
Two telescopic rods 11 are hinged on the mounting surface from top to bottom in sequence, the arrangement direction of the two telescopic rods 11 is along the direction perpendicular to the axis of the hinge shaft of the telescopic rods 11, and the two telescopic rods 11 form a connecting rod group. At the hinged position of the telescopic rod 11, the end parts of the corresponding loop bars are respectively connected with a second bolt 13 in a threaded manner, and the front ends of the second bolts 13 penetrate through the second screw holes and are abutted against the side surfaces of the supporting lugs 12. The second bolt 13 is in a unscrewed state when adjusting the angles of the telescopic rod 11 and the base 10 and the support plate 20; when the angle adjustment is completed, the second bolt 13 is screwed by using a wrench, and the front end of the second bolt 13 is abutted against the side surface of the support lug 12, so that two-point supports are formed by matching with the corresponding hinge shafts, and the corresponding loop bar is limited to rotate. If necessary, the telescopic rod 11 and the lugs 12 hinged at the two ends can be welded together by using a welding mode, so that the telescopic rod 11, the base 10 and the supporting rod are fixedly connected into a whole.
The end part of the inner sleeve rod 112 of the upper telescopic rod 11 is in sliding connection with the bottom of the supporting rod. The bottom of the supporting plate 20 is provided with a guide block 21 at a corresponding position, a waist-shaped hole 211 is formed in the guide block 21, and the hole pattern length direction of the waist-shaped hole 211 is arranged along the arrangement direction of the two telescopic rods 11. The corresponding hinge shaft at the top of the inner sleeve 112 is slidably disposed in the waist-shaped hole 211. A locking member for locking the position of the hinge shaft is also disposed at the top of the inner sleeve rod 112. A locking screw hole 1121 is opened at an end of the inner sleeve rod 112, a locking bolt 1122 as a locking member and the locking screw hole 1121 are screw-coupled to each other, and a front end of the locking bolt 1122 passes through the locking screw hole 1121 and abuts against a side surface of the guide block 21. Similarly, when the position of the hinge shaft is adjusted, lock bolt 1122 is in an unscrewed state; when the position adjustment is completed, the lock bolt 1122 is tightened using a wrench, and the front end of the lock bolt 1122 is abutted against the side of the guide block 21 to restrict the hinge shaft from continuing to move. If necessary, the end portion extending the inner sleeve 112 and the guide block 21 may be welded together by welding, so that the telescopic rod 11, the base 10 and the support rod are fixedly coupled as a unit. In order to improve the stability of the support plate 20, two sets of linkage are then symmetrically arranged between the base 10 and the support plate 20, the two sets of linkage and the corresponding base 10 and support plate 20 forming two sets of hinge four-bar linkages.
A satellite navigation antenna 30 is mounted on the upper plate surface of the support plate 20. The satellite navigation antenna 30 includes a parabolic antenna body 31, and the signal receiving surface of the antenna body 31 is pointed toward the satellite. The bottom of the antenna body 31 is hinged with the support plate 20, and a driving part 32 for driving the antenna body 31 to rotate around the corresponding hinge to adjust the pitching angle of the antenna body 31 is mounted on the back of the antenna body 31.
The driving part 32 includes an outer rod 321 hinged on the support plate 20, an inner rod 322 is coaxially sleeved inside the outer rod 321, the inner rod 322 and the outer rod 321 are slidably matched with each other, a telescopic end of the inner rod 322 is hinged with the back of the antenna body 31, and a positioning piece 323 for locking the position of the inner rod 322 is further arranged on the outer rod 321.
The outer rod 321 is provided with a screw hole, the screw hole is internally connected with a bolt serving as a positioning piece 323 in a threaded manner, and the front end of the bolt penetrates through the screw hole and abuts against the rod body of the inner rod 322, so that the inner rod 322 is limited to continuously slide. The outer rod 321 and the inner rod 322 may be fixedly connected together by welding, if necessary.
In use, the inclined surface 40 required as the mounting base is first determined, and the selected inclined surface 40 is pointed in the direction of the satellite in space. Then, the base 10 is mounted on the inclined surface 40 by using expansion screws, the expansion length of each expansion link 11 and the position of the corresponding hinge shaft in the waist-shaped hole 211 are adjusted, the upper plate surface of the support plate 20 is adjusted to be horizontal, and then the first bolt, the second bolt 13 and the locking bolt 1122 are locked to fix the position of the support plate 20. And then adjusting the telescopic lengths of the inner rod 322 and the outer rod 321 until the antenna body 31 can stably receive signals, and finally locking the position of the antenna body 31 by using bolts, so that stable signal receiving can be realized.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (10)
1. A levelling mechanism, characterized by comprising a base (10), the base (10) being mounted on an inclined surface (40) directed towards a satellite; the base (10) is connected with the supporting plate (20) through the telescopic rods (11), the number of the telescopic rods (11) is four, the telescopic rods are respectively positioned at four corner ends of the supporting plate (20), and the base (10), any two adjacent telescopic rods (11) and the supporting plate (20) are matched to form a hinge four-bar mechanism with a lockable shape, so that the supporting plate (20) can do reciprocating swinging motion along the pitching direction of the antenna;
the hinge shaft in the hinge four-bar mechanism can do reciprocating sliding motion along the direction perpendicular to the axis of the hinge shaft, and the moving direction of the hinge shaft and the telescopic direction of the corresponding telescopic rod (11) are intersected with each other.
2. A leveling mechanism according to claim 1, characterized in that four telescopic rods (11) are arranged symmetrically in pairs, and that the hinge axes of the hinge four-bar mechanism are coincident with each other to produce said reciprocating sliding motion.
3. A leveling mechanism according to claim 2, characterized in that a waist-shaped hole (211) is arranged at the bottom of the supporting plate (20), the hole-shaped length direction of the waist-shaped hole (211) and the path direction of the reciprocating sliding motion being parallel to each other; the hinge shaft is slidably disposed within the kidney-shaped aperture (211).
4. A leveling mechanism according to claim 3, characterized in that the telescopic rod (11) comprises an outer sleeve rod (111) hinged on the base (10), and an inner sleeve rod (112) slidingly sleeved inside the outer sleeve rod (111); the top end of the inner sleeve rod (112) is provided with the hinge shaft;
a guide block (21) is arranged on the lower plate surface of the supporting plate (20), and the waist-shaped hole (211) is formed in the guide block (21).
5. The leveling mechanism according to claim 4, wherein a locking screw hole (1121) is formed in the inner sleeve (112) to which the hinge shaft is attached, the locking bolt (1122) and the locking screw hole (1121) are screw-coupled to each other, and a front end of the locking bolt (1122) passes through the locking screw hole (1121) and abuts against a side surface of the guide block (21).
6. The leveling mechanism according to claim 5, wherein the outer sleeve (111) is screwed with a first bolt, and a front end of the first bolt passes through the first screw hole and abuts against the shaft of the inner sleeve (112).
7. The leveling mechanism according to claim 6, wherein lugs (12) for hinging the telescopic rod (11) are arranged on the supporting plate (20) and the base (10), two ends of the telescopic rod (11) are connected with second bolts (13) in a threaded mode, and the front ends of the second bolts (13) penetrate through the second screw holes and are abutted against the side faces of the lugs (12).
8. Satellite navigation antenna employing a levelling mechanism according to any of claims 1-7, characterized in that a parabolic antenna body (31) is mounted on the support plate (20), the signal receiving surface of the antenna body (31) being directed towards the satellite; the bottom of the antenna body (31) is hinged with the supporting plate (20), and a driving part (32) for driving the antenna body (31) to rotate around the corresponding hinged position so as to adjust the pitching angle of the antenna body (31) is arranged on the back of the antenna body (31).
9. A satellite navigation antenna according to claim 8, wherein the driving part (32) comprises an outer rod (321) hinged on the supporting plate (20), an inner rod (322) is coaxially sleeved inside the outer rod (321), the inner rod (322) and the outer rod (321) are in sliding fit with each other, and the telescopic end of the inner rod (322) is hinged with the back of the antenna body (31); a positioning piece (323) for locking the position of the inner rod (322) is arranged on the outer rod (321).
10. The satellite navigation antenna of claim 9, wherein the outer rod (321) is provided with a screw hole, a bolt is connected in the screw hole in a threaded manner, the front end of the bolt passes through the screw hole and abuts against the rod body of the inner rod (322), and the bolt forms the positioning piece (323).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320733293.9U CN219833023U (en) | 2023-04-06 | 2023-04-06 | Leveling mechanism and satellite navigation antenna using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320733293.9U CN219833023U (en) | 2023-04-06 | 2023-04-06 | Leveling mechanism and satellite navigation antenna using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219833023U true CN219833023U (en) | 2023-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320733293.9U Active CN219833023U (en) | 2023-04-06 | 2023-04-06 | Leveling mechanism and satellite navigation antenna using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219833023U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117335127A (en) * | 2023-11-21 | 2024-01-02 | 星识通南京通信科技有限公司 | Vehicle-mounted satellite communication antenna with direction finding function |
-
2023
- 2023-04-06 CN CN202320733293.9U patent/CN219833023U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117335127A (en) * | 2023-11-21 | 2024-01-02 | 星识通南京通信科技有限公司 | Vehicle-mounted satellite communication antenna with direction finding function |
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