CN212275961U - Adjustable corner reflector - Google Patents
Adjustable corner reflector Download PDFInfo
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- CN212275961U CN212275961U CN202021615704.7U CN202021615704U CN212275961U CN 212275961 U CN212275961 U CN 212275961U CN 202021615704 U CN202021615704 U CN 202021615704U CN 212275961 U CN212275961 U CN 212275961U
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Abstract
The utility model discloses an adjustable corner reflector, including base, chassis and corner reflector, the bottom of base is passed through expansion bolts and is installed on the basis stake, and the top of base is provided with a plurality of adjusting screw, and corner reflector includes center pin and a plurality of reflector, and the reflector passes through the sleeve pipe and installs on the center pin, is provided with a plurality of ventilation holes on the reflector, and each reflector homoenergetic is rotatory around the center pin. The utility model relates to a rationally, realize the inclination on chassis and the regulation of the contained angle between two adjacent reflectors to reach the radar wave incident direction that adapts to different SAR satellites, improve corner reflector's application scope and availability factor.
Description
Technical Field
The utility model belongs to the technical field of the radar signal reflection, especially, relate to an adjustable corner reflector.
Background
Synthetic Aperture Radar (SAR) is used as an active microwave imaging sensor, and achieves high resolution in the range direction by transmitting broadband frequency modulation signals and pulse compression technology, and obtains high resolution in the azimuth direction by azimuth Synthetic Aperture technology. Compared with optical and hyperspectral remote sensing means, the SAR has all-weather imaging capability, the obtained image can reflect the microwave scattering characteristic of a target, and the SAR has certain penetrability and is an important technical means for acquiring the ground feature information. The SAR satellite takes space vehicles such as satellites and the like as a motion platform, has global observation capability, can provide favorable technical support for earth environment change and geological disaster monitoring, and is widely applied to various aspects such as agriculture and forestry monitoring, geological survey, ocean monitoring, ice and snow detection, ground surface coverage monitoring, topographic mapping, geological disaster monitoring, national defense construction and the like.
Since the 21 st century, a plurality of aerospace strong countries in the world deploy respective SAR satellites successively, and realize the update and upgrade of the SAR satellites, satellite-borne synthetic aperture radars have been developed greatly in the aspects of system, imaging theory, system performance, application field and the like, the geometric resolution of SAR images is improved from the initial hectometer to the sub-meter (0.25 m), the corner reflector is also called a radar signal reflector, when radar waves scan the corner reflector, the radar waves can be refracted and amplified on metal corners to generate strong echo signals, so the corner reflector is crucial to the quality of the SAR images, and the existing corner reflection has the following defects: (1) the imaging direction of each SAR satellite lifting orbit radar image corresponding to the corner reflector is different, one corner reflector can only reflect one SAR signal, the application range is narrow, and the application efficiency is low; (2) the reflector of the corner reflector is large in reflection surface and possible to deform due to wind resistance, so that in order to improve the application range and the use efficiency of the corner reflector, an adjustable corner reflector is researched, and the angle of the reflector and the inclination angle of a chassis can be adjusted according to the incident directions of radar waves of different SAR satellites.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed at, provide an adjustable corner reflector, its reasonable in design realizes the inclination on chassis and the regulation of the contained angle between two adjacent reflectors to reach the radar wave incident direction that adapts to different SAR satellites, improve corner reflector's application scope and availability factor.
In order to solve the technical problem, the utility model discloses a technical scheme is: an adjustable corner reflector, comprising: the base is arranged on a foundation pile through expansion bolts, a plurality of adjusting screws are arranged at the top of the base, the upper parts of the adjusting screws penetrate through the base, and the base is lifted along the height direction of the adjusting screws;
the corner reflector comprises a central shaft arranged on the chassis and a plurality of reflectors sleeved on the central shaft, the reflectors are arranged on the central shaft through sleeves, a plurality of vent holes are formed in the reflectors, and the reflectors can rotate around the central shaft.
The adjustable corner reflector is characterized in that: the upper end that the center pin is higher than the reflector is provided with the external screw thread section, the cover is equipped with lock nut and rubber gasket on the external screw thread section, the top surface of rubber gasket and reflector is laminated mutually.
The adjustable corner reflector is characterized in that: the quantity of reflector is four, four the reflector is first reflector, second reflector, third reflector and fourth reflector respectively, be provided with first sleeve pipe and second sleeve pipe on the first reflector, be provided with third sleeve pipe and fourth sleeve pipe on the second reflector, be provided with fifth sleeve pipe and sixth sleeve pipe on the third reflector, be provided with seventh sleeve pipe and eighth sleeve pipe on the fourth reflector, first sleeve pipe, third sleeve pipe, seventh sleeve pipe, fifth sleeve pipe, second sleeve pipe, fourth sleeve pipe, eighth sleeve pipe and sixth sleeve pipe wear to establish from top to bottom in proper order along the center pin direction of height, be provided with first ventilation hole, second ventilation hole, third ventilation hole and fourth ventilation hole on first reflector, second reflector, third reflector and the fourth reflector respectively.
The adjustable corner reflector is characterized in that: the adjustable base is characterized in that a plurality of base circular holes are formed in the base plate, the adjusting screw penetrates through the base circular holes, an upper nut and a lower nut are sleeved on the adjusting screw, the upper nut is located on the top surface of the base plate, the bottom surface of the upper nut is attached to the top surface of the base plate, the lower nut is located on the bottom surface of the base plate, and the top surface of the lower nut is attached to the bottom surface of the base plate.
The adjustable corner reflector is characterized in that: the bottom of base is provided with a plurality of base round holes, expansion bolts passes in the base round hole stretches into the foundation pile, the last cover of expansion bolts is equipped with the gasket, the gasket is located between the bottom surface of base and the top surface of foundation pile.
The adjustable corner reflector is characterized in that: the foundation pile is a concrete foundation pile, the foundation pile comprises an upper concrete pile section and a lower concrete pile section, the upper concrete pile section is a cylindrical concrete pile section, the top of the upper concrete pile section is higher than the ground, the lower concrete pile section is a frustum concrete pile section, and the joint of the upper concrete pile section and the lower concrete pile section is flush with the maximum frozen soil depth.
Compared with the prior art, the utility model has the following advantage:
1. the utility model discloses an adjustable corner reflector, simple structure, reasonable in design, the installation of being convenient for, and with low costs.
2. The adjusting screw rod adopted by the utility model is arranged between the base and the chassis in a penetrating way, and the chassis is adjusted to move along the height direction of the adjusting screw rod, so that the inclination angle of the chassis is adjusted; the central shaft and the plurality of reflectors are sleeved on the central shaft, and each reflector can rotate around the central shaft, so that the included angle between two adjacent reflectors can be adjusted, the radar wave incident direction of different SAR satellites can be adapted, the problem that one corner reflector can only adapt to one SAR signal is solved, the corner reflector can adapt to various SAR signals, and the application range and the use efficiency of the corner reflector are improved.
3. The utility model discloses be provided with a plurality of ventilation holes on the reflector that adopts to reduce the windage resistance, effectively solved because of the great windage resistance that leads to of emitter plane of reflection size self deformation problem big and take place.
To sum up, the utility model relates to a rationally, can realize the inclination on chassis and the regulation of the contained angle between two adjacent reflectors to reach the radar wave incident direction that adapts to different SAR satellites, improve corner reflector's application scope and availability factor.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the adjustable corner reflector of the present invention.
Fig. 2 is a schematic structural diagram of the adjustable corner reflector base of the present invention.
Fig. 3 is a bottom view of fig. 2.
Fig. 4a is a schematic structural diagram of the first emitter of the adjustable corner reflector of the present invention.
Fig. 4b is a schematic structural diagram of the second emitter of the adjustable corner reflector of the present invention.
Fig. 4c is a schematic structural diagram of the third emitter of the adjustable corner reflector of the present invention.
Fig. 4d is a schematic structural diagram of the fourth emitter of the adjustable corner reflector of the present invention.
Fig. 5 is a schematic structural diagram of the adjustable corner reflector, the central shaft and the chassis of the present invention.
Description of reference numerals:
1, drilling; 2, a base; 2-1-adjusting screw;
2-upper nut; 2-3-expansion bolts; 2-4-a gasket;
2-5-base circular hole; 2-6-upper opening; 2-7-lower opening;
2-8-lower nut; 3, a chassis; 3-1-round hole of chassis;
4-a reflector; 4-1 — a first reflector; 4-2 — a second reflector;
4-3 — a third reflector; 4-a fourth reflector; 4-5-a first vent;
4-6-second vent hole; 4-7-a third vent hole; 4-8-a fourth vent hole;
4-9-a first sleeve; 4-10-second sleeve; 4-11-third sleeve;
4-12-fourth cannula; 4-13-fifth sleeve; 4-14-sixth cannula;
4-15-seventh cannula; 4-16-eighth cannula; 5-central axis;
5-1-external thread section; 5-2-locking nut; 5-3-rubber gasket;
6-maximum frozen soil depth; 7, the ground; 8, piling a foundation;
8-1, installing a concrete pile section; 8-2-lower concrete pile section.
Detailed Description
The adjustable corner reflector shown in fig. 1 to 3 comprises a base 2, a chassis 3 and a corner reflector which are sequentially arranged from bottom to top, wherein the bottom of the base 2 is installed on a foundation pile 8 through an expansion bolt 2-3, the top of the base 2 is provided with a plurality of adjusting screws 2-1, the upper parts of the adjusting screws 2-1 penetrate through the chassis 3, and the chassis 3 is lifted along the height direction of the adjusting screws 2-1;
the corner reflector comprises a central shaft 5 arranged on the base plate 3 and a plurality of reflecting bodies 4 sleeved on the central shaft 5, the reflecting bodies 4 are arranged on the central shaft 5 through sleeves, a plurality of vent holes are formed in the reflecting bodies 4, and the reflecting bodies 4 can rotate around the central shaft 5.
In the embodiment, the upper end of the central shaft 5, which is higher than the reflector 4, is provided with an external thread section 5-1, the external thread section 5-1 is sleeved with a locking nut 5-2 and a rubber gasket 5-3, and the rubber gasket 5-3 is attached to the top surface of the reflector 4.
As shown in fig. 4a to 4d, in the present embodiment, the number of the reflectors 4 is four, the four reflectors 4 are respectively a first reflector 4-1, a second reflector 4-2, a third reflector 4-3 and a fourth reflector 4-4, the first reflector 4-1 is provided with a first sleeve 4-9 and a second sleeve 4-10, the second reflector 4-2 is provided with a third sleeve 4-11 and a fourth sleeve 4-12, the third reflector 4-3 is provided with a fifth sleeve 4-13 and a sixth sleeve 4-14, the fourth reflector 4-4 is provided with a seventh sleeve 4-15 and an eighth sleeve 4-16, the first sleeve 4-9, the third sleeve 4-11, the seventh sleeve 4-15, the fourth sleeve 4-4, The fifth sleeve 4-13, the second sleeve 4-10, the fourth sleeve 4-12, the eighth sleeve 4-16 and the sixth sleeve 4-14 sequentially penetrate from top to bottom along the height direction of the central shaft 5, and the first reflector 4-1, the second reflector 4-2, the third reflector 4-3 and the fourth reflector 4-4 are respectively provided with a first vent hole 4-5, a second vent hole 4-6, a third vent hole 4-7 and a fourth vent hole 4-8.
As shown in fig. 5, in this embodiment, a plurality of chassis circular holes 3-1 are formed in the chassis 3, the adjusting screw 2-1 penetrates through the chassis circular hole 3-1, an upper nut 2-2 and a lower nut 2-8 are sleeved on the adjusting screw 2-1, the upper nut 2-2 is located on the top surface of the chassis 3, the bottom surface of the upper nut 2-2 is attached to the top surface of the chassis 3, the lower nut 2-8 is located on the bottom surface of the chassis 3, and the top surface of the lower nut 2-8 is attached to the bottom surface of the chassis 3.
In the embodiment, the bottom of the base 2 is provided with a plurality of base round holes 2-5, the expansion bolts 2-3 penetrate through the base round holes 2-5 and extend into the foundation pile 8, the expansion bolts 2-3 are sleeved with gaskets 2-4, and the gaskets 2-4 are located between the bottom surface of the base 2 and the top surface of the foundation pile 8.
In this embodiment, the foundation pile 8 is a concrete foundation pile, the foundation pile 8 includes an upper concrete pile section 8-1 and a lower concrete pile section 8-2, the upper concrete pile section 8-1 is a cylindrical concrete pile section, the top of the upper concrete pile section 8-1 is higher than the ground 7, the lower concrete pile section 8-2 is a frustum concrete pile section, and the joint of the upper concrete pile section 8-1 and the lower concrete pile section 8-2 is flush with the maximum frozen soil depth 6.
In this embodiment, the utility model discloses an adjustable corner reflector, simple structure, reasonable in design, the installation of being convenient for, and with low costs.
In the embodiment, the adjusting screw rod penetrates between the base and the chassis, and the adjusting chassis moves along the height direction of the adjusting screw rod 2-1, so that the adjustment of the inclination angle and the inclination direction of the chassis is realized, and the adjustment of the inclination angle and the inclination direction of the reflector 4 is realized; the central shaft 5 and the plurality of reflecting bodies 4 sleeved on the central shaft 5 are arranged, and each reflecting body 4 can rotate around the central shaft 5, so that an included angle between every two adjacent reflecting bodies 4 is realized, the radar wave incident direction of different SAR satellites is adapted, the problem that one corner reflector can only adapt to one SAR signal is solved, the SAR signal is adapted to various SAR signals, and the application range and the use efficiency of the corner reflector are improved.
In this embodiment, the reflector 4 is provided with a plurality of ventilation holes to reduce wind resistance, thereby effectively solving the problem of self-deformation caused by large wind resistance due to the large size of the reflecting surface of the reflector.
In this embodiment, the base 2, the chassis 3, the reflector 4, the central shaft 5 and the sleeve are all made of stainless steel.
In this embodiment, in actual use, the underground is provided with a borehole 1 for pouring concrete to form a foundation pile 8.
In this embodiment, the base 2 is a hollow cylinder, the height of the base 2 is 100mm, the outer diameter of the base 2 is 900mm, the thicknesses of the top, the bottom and the side walls of the base 2 are 10mm, an upper opening 2-6 is arranged at the center of the top of the base 2, a lower opening 2-7 is arranged at the center of the bottom of the base 2, and the inner diameters of the upper opening 2-6 and the lower opening 2-7 are 300 mm.
In this embodiment, it should be noted that the upper openings 2 to 6 and the lower openings 2 to 7 are provided for the convenience of installing the expansion bolts 2 to 3.
In this embodiment, the diameter of the chassis 3 is 900mm, the thickness of the chassis 3 is 10mm, the center of the chassis 3 and the center of the base 2 are located on the same axis, 3 chassis round holes 3-1 are arranged on the chassis 3, and the diameter of the chassis round hole 3-1 is 10 mm.
In this embodiment, it should be noted that the upper surface of the chassis 3 should be a smooth surface to ensure that the 4 reflectors 4 can rotate smoothly when adjusting the relative angles.
In this embodiment, the outer diameter of the expansion bolt 2-3 is 10mm, the length of the expansion bolt 2-3 is not less than 100mm, and the gasket 2-4 is a rubber gasket.
In this embodiment, the bottom of the base 2 is provided with 4 base circular holes 2-5, the diameters of the base circular holes 2-5 are 10mm, and the distance between the circle centers of the base circular holes 2-5 and the edge of the base 2 is 20 mm.
In this embodiment, the diameter of the adjusting screw 2-1 is 10mm, the length of the adjusting screw 2-1 is 130mm, the adjusting screw 2-1 is vertically welded on the top surface of the base 2, and the distance between the center of the adjusting screw 2-1 and the edge of the top surface of the base 2 is 55 mm.
In this embodiment, the number of the adjusting screws 2-1 is three, the three adjusting screws 2-1 are uniformly distributed along the circumferential direction of the base 2, and the thicknesses of the upper nuts 2-2 and the lower nuts 2-8 are both 10 mm.
In this embodiment, the bottom end of the central shaft 5 is welded to the center of the top surface of the bottom plate 3, the length of the central shaft 5 is 460mm, the diameter of the central shaft 5 is 5mm,
in this embodiment, in actual use, the length of the adjusting screw 2-1 can be adjusted according to the actual need of the chassis 3 for tilt angle adjustment. In addition, a chassis round hole 3-1 for the adjusting screw rod 2-1 to penetrate through is arranged on the chassis 3, and the chassis round hole 3-1 can also be adjusted to be a waist-shaped hole which is convenient for enlarging the adjusting range of the chassis.
In this embodiment, the length of the external thread section 5-1 is 100mm, and the diameter of the external thread section 5-1 is 5 mm.
In this embodiment, in practical use, if the annual maximum wind power in the area where the corner reflector is located is large, the diameter of the central shaft 5 may be appropriately increased, and the corresponding first casing 4-9, third casing 4-11, seventh casing 4-15, fifth casing 4-13, second casing 4-10, fourth casing 4-12, eighth casing 4-16 and sixth casing 4-14 are synchronously increased.
In this embodiment, in practical use, the first sleeve 4-9, the third sleeve 4-11, the seventh sleeve 4-15, the fifth sleeve 4-13, the second sleeve 4-10, the fourth sleeve 4-12, the eighth sleeve 4-16 and the sixth sleeve 4-14 can rotate around the central axis 5, so as to adjust the included angle between two adjacent reflectors 4.
In this embodiment, the reflecting surface of the reflector 4 is square, the side length of the reflector 4 is 360mm, that is, the width of the reflector 4 and the height of the reflector 4 are both a and equal to 360mm, and the thickness of the reflector 4 is 5 mm.
In the embodiment, the first vent holes 4-5, the second vent holes 4-6, the third vent holes 4-7 and the fourth vent holes 4-8 are all arranged in five rows and five columns, and the number of the first vent holes 4-5, the second vent holes 4-6, the third vent holes 4-7 and the fourth vent holes 4-8 is 25, so that the self deformation caused by wind resistance is reduced.
In this embodiment, during practical use, the number of the vent holes can be adjusted according to the annual maximum wind power of the area where the corner reflector is located.
In the embodiment, the diameters of the first vent hole 4-5, the second vent hole 4-6, the third vent hole 4-7 and the fourth vent hole 4-8 are all 10 mm.
In this embodiment, the pitch between two adjacent first vent holes 4-5, the pitch between two adjacent second vent holes 4-6, the pitch between two adjacent third vent holes 4-7, and the pitch between two adjacent fourth vent holes 4-8 are all 60 mm.
In the embodiment, the inner diameters of the first casing 4-9, the second casing 4-10, the third casing 4-11, the fourth casing 4-12, the fifth casing 4-13, the sixth casing 4-14, the seventh casing 4-15 and the eighth casing 4-16 are all 5mm, the outer diameters of the first casing 4-9, the second casing 4-10, the third casing 4-11, the fourth casing 4-12, the fifth casing 4-13, the sixth casing 4-14, the seventh casing 4-15 and the eighth casing 4-16 are all 7mm, the lengths of the first sleeve 4-9, the second sleeve 4-10, the third sleeve 4-11, the fourth sleeve 4-12, the fifth sleeve 4-13, the sixth sleeve 4-14, the seventh sleeve 4-15 and the eighth sleeve 4-16 are all 45 mm.
In this embodiment the distance between the first 4-9 and the second 4-10 casing, the distance between the third 4-11 and the fourth 4-12 casing, the distance between the fifth 4-13 and the sixth 4-14 casing and the distance between the seventh 4-15 and the eighth 4-16 casing are all 135 mm.
In the embodiment, in practical use, the distance between the top end of the first sleeve 4-9 and the top end of the first reflector 4-1 is 0mm, the distance between the top end of the second sleeve 4-10 and the top end of the first reflector 4-1 is 180mm, the distance between the top end of the third sleeve 4-11 and the top end of the second reflector 4-2 is 45mm, the distance between the top end of the fourth sleeve 4-12 and the top end of the second reflector 4-2 is 225mm, the distance between the top end of the fifth sleeve 4-13 and the top end of the third reflector 4-3 is 135mm, the distance between the top end of the sixth sleeve 4-14 and the top end of the third reflector 4-3 is 315mm, the distance between the top end of the seventh sleeve 4-15 and the top end of the fourth reflector 4-4 is 90mm, and the distance between the top end of the eighth sleeve 4-16 and the top end of the fourth reflector 4-4 is 270 mm.
In the embodiment, the diameter of the upper concrete pile section 8-1 is 700mm, and the height of the lower concrete pile section 8-2 is more than or equal to 500 mm; and the included angle between the side surface of the lower concrete pile section 8-2 and the bottom surface of the lower concrete pile section 8-2 is not more than 60 degrees, so that the stability and frost heaving resistance of the pile body of the foundation pile 8 are further improved.
In this embodiment, in actual use, the height of the upper concrete pile section 8-1 exposed to the ground 7 can be appropriately adjusted according to the radar shielding angle of the surrounding environment, and the pile top diameter of the foundation pile 8 and the pile bottom diameter of the lower concrete pile section 8-2 can be appropriately increased and cannot be reduced.
In this embodiment, in actual use, when the base 2 is installed on a stable bedrock or other stable object, the height of the base 2 can be appropriately increased or decreased as needed.
The utility model discloses a concrete installation, including following step:
firstly, excavating a drill hole 1 at a position to be installed of a corner reflector, and pouring concrete in the drill hole 1 to form a foundation pile 8; the foundation pile 8 comprises an upper concrete pile section 8-1 and a lower concrete pile section 8-2, the upper concrete pile section 8-1 is a cylindrical concrete pile section, the top of the upper concrete pile section 8-1 is higher than the ground 7, the lower concrete pile section 8-2 is a frustum concrete pile section, and the joint of the upper concrete pile section 8-1 and the lower concrete pile section 8-2 is flush with the maximum frozen soil depth 6;
secondly, drilling four mounting holes at the top of the foundation pile 8, and placing gaskets 2-4 on the mounting holes; the expansion bolts 2-3 penetrate through base round holes 2-5 at the bottom of the base 2 and extend into the foundation pile 8, so that the base 2 is installed on the foundation pile 8;
then welding an adjusting screw rod 2-1 on the top of the base 2; the adjusting screws 2-1 are vertically arranged, the number of the adjusting screws 2-1 is three, and the three adjusting screws 2-1 are uniformly distributed along the circumferential direction of the top of the base 2; a lower nut 2-8 is arranged on the adjusting screw rod 2-1 in a penetrating way; wherein, the upper end of the adjusting screw rod 2-1 extends out of the lower nut 2-8; the upper end of an adjusting screw 2-1 penetrates through a round hole 3-1 of a chassis on a chassis 3, and an upper nut 2-2 is arranged at the upper end of the adjusting screw 2-1 penetrating through the round hole 3-1 of the chassis; wherein, the bottom surface of the upper nut 2-2 is jointed with the top surface of the chassis 3, and the top surface of the lower nut 2-8 is jointed with the bottom surface of the chassis 3;
finally, a central shaft 5 is welded at the center of the top of the chassis 3, and a sixth sleeve 4-14, an eighth sleeve 4-16, a fourth sleeve 4-12, a second sleeve 4-10, a fifth sleeve 4-13, a seventh sleeve 4-15, a third sleeve 4-11 and a first sleeve 4-9 are sequentially sleeved on the central shaft 5 from bottom to top; welding a first reflector 4-1 on the side walls of the first sleeve 4-9 and the second sleeve 4-10, welding a second reflector 4-2 on the side walls of the third sleeve 4-11 and the fourth sleeve 4-12, welding a third reflector 4-3 on the side walls of the fifth sleeve 4-13 and the sixth sleeve 4-14, and welding a fourth reflector 4-4 on the side walls of the seventh sleeve 4-15 and the eighth sleeve 4-16; then the included angle between the first reflector 4-1 and the second reflector 4-2, the included angle between the third reflector 4-3 and the fourth reflector 4-4, the included angle between the second reflector 4-2 and the third reflector 4-3 and the included angle between the first reflector 4-1 and the fourth reflector 4-4 can be adjusted according to the radar wave incident direction requirement of the SAR satellite, the lower nut 2-8 and the lower nut 2-8 can be unscrewed, and one side of the adjusting chassis 3 is lifted along the height direction of the adjusting screw rod 2-1, the inclination angle between the bottom surface of the adjusting chassis 3 and the ground 7 is adjusted, the lower nut 2-8 and the lower nut 2-8 are screwed after the adjustment is finished, so that the bottom surface of the upper nut 2-2 is attached to the top surface of the chassis 3, and the top surface of the lower nut 2-8 is attached to the bottom surface of the chassis 3; then a locking nut 5-2 and a rubber gasket 5-3 are sleeved on the central shaft 5; wherein, the rubber gasket 5-3 is jointed with the top surface of the reflector 4;
in this embodiment, it should be noted that an included angle between the first reflecting body 4-1 and the second reflecting body 4-2 is adjusted to be 90 degrees, an included angle between the third reflecting body 4-3 and the fourth reflecting body 4-4 is adjusted to be 90 degrees, and an included angle between the second reflecting body 4-2 and the third reflecting body 4-3 is an obtuse angle.
In the embodiment, concrete is poured into the drilled hole 1 to form the foundation pile 8, the foundation pile 8 comprises an upper concrete pile section 8-1 and a lower concrete pile section 8-2, the lower end of the upper concrete pile section 8-1 is flush with the maximum frozen soil depth 6 of the area where the foundation pile is located, and the problem that the pile body of the foundation pile of the seasonal frozen soil area corner reflector is frozen is effectively solved.
In this embodiment, in actual use, the base 2 may be installed on a stable bedrock surface or other stable foundation according to a geological environment and an observation object.
To sum up, the utility model relates to a rationally, can realize the inclination on chassis and the regulation of the contained angle between two adjacent reflectors to reach the radar wave incident direction that adapts to different SAR satellites, improve corner reflector's application scope and availability factor.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (6)
1. An adjustable corner reflector, comprising: the base comprises a base (2), a chassis (3) and corner reflectors which are sequentially arranged from bottom to top, wherein the bottom of the base (2) is installed on a foundation pile (8) through expansion bolts (2-3), a plurality of adjusting screws (2-1) are arranged at the top of the base (2), the upper parts of the adjusting screws (2-1) penetrate through the chassis (3), and the chassis (3) is lifted along the height direction of the adjusting screws (2-1);
the corner reflector comprises a central shaft (5) arranged on the base plate (3) and a plurality of reflecting bodies (4) sleeved on the central shaft (5), wherein the reflecting bodies (4) are arranged on the central shaft (5) through sleeves, a plurality of vent holes are formed in the reflecting bodies (4), and the reflecting bodies (4) can rotate around the central shaft (5).
2. The adjustable corner reflector of claim 1, wherein: the upper end of the central shaft (5) higher than the reflector (4) is provided with an external thread section (5-1), the external thread section (5-1) is sleeved with a locking nut (5-2) and a rubber gasket (5-3), and the rubber gasket (5-3) is attached to the top surface of the reflector (4).
3. The adjustable corner reflector of claim 1, wherein: the reflector comprises four reflectors (4), the four reflectors (4) are respectively a first reflector (4-1), a second reflector (4-2), a third reflector (4-3) and a fourth reflector (4-4), a first sleeve (4-9) and a second sleeve (4-10) are arranged on the first reflector (4-1), a third sleeve (4-11) and a fourth sleeve (4-12) are arranged on the second reflector (4-2), a fifth sleeve (4-13) and a sixth sleeve (4-14) are arranged on the third reflector (4-3), a seventh sleeve (4-15) and an eighth sleeve (4-16) are arranged on the fourth reflector (4-4), the first sleeve (4-9) and the fourth sleeve (4-4), The third sleeve (4-11), the seventh sleeve (4-15), the fifth sleeve (4-13), the second sleeve (4-10), the fourth sleeve (4-12), the eighth sleeve (4-16) and the sixth sleeve (4-14) sequentially penetrate through the central shaft (5) from top to bottom along the height direction, and the first vent hole (4-5), the second vent hole (4-6), the third vent hole (4-7) and the fourth vent hole (4-8) are respectively formed in the first reflector (4-1), the second reflector (4-2), the third reflector (4-3) and the fourth reflector (4-4).
4. The adjustable corner reflector of claim 1, wherein: the improved structure of the automobile chassis is characterized in that a plurality of chassis round holes (3-1) are formed in the chassis (3), the adjusting screw (2-1) penetrates through the chassis round holes (3-1), an upper nut (2-2) and a lower nut (2-8) are sleeved on the adjusting screw (2-1), the upper nut (2-2) is located on the top surface of the chassis (3), the bottom surface of the upper nut (2-2) is attached to the top surface of the chassis (3), the lower nut (2-8) is located on the bottom surface of the chassis (3), and the top surface of the lower nut (2-8) is attached to the bottom surface of the chassis (3).
5. The adjustable corner reflector of claim 1, wherein: the base is characterized in that a plurality of base round holes (2-5) are formed in the bottom of the base (2), the expansion bolts (2-3) penetrate through the base round holes (2-5) and extend into the foundation pile (8), gaskets (2-4) are sleeved on the expansion bolts (2-3), and the gaskets (2-4) are located between the bottom surface of the base (2) and the top surface of the foundation pile (8).
6. The adjustable corner reflector of claim 1, wherein: the foundation pile (8) is a concrete foundation pile, the foundation pile (8) comprises an upper concrete pile section (8-1) and a lower concrete pile section (8-2), the upper concrete pile section (8-1) is a cylindrical concrete pile section, the top of the upper concrete pile section (8-1) is higher than the ground (7), the lower concrete pile section (8-2) is a frustum concrete pile section, and the joint of the upper concrete pile section (8-1) and the lower concrete pile section (8-2) is flushed with the maximum frozen soil depth (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781560A (en) * | 2020-08-07 | 2020-10-16 | 机械工业勘察设计研究院有限公司 | Adjustable corner reflector and installation method thereof |
| JP7161577B1 (en) | 2021-05-17 | 2022-10-26 | 東京パワーテクノロジー株式会社 | Surveying methods, installation methods, and anti-aircraft signals |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781560A (en) * | 2020-08-07 | 2020-10-16 | 机械工业勘察设计研究院有限公司 | Adjustable corner reflector and installation method thereof |
| CN111781560B (en) * | 2020-08-07 | 2024-08-27 | 机械工业勘察设计研究院有限公司 | Adjustable corner reflector and mounting method thereof |
| JP7161577B1 (en) | 2021-05-17 | 2022-10-26 | 東京パワーテクノロジー株式会社 | Surveying methods, installation methods, and anti-aircraft signals |
| JP2022176483A (en) * | 2021-05-17 | 2022-11-30 | 東京パワーテクノロジー株式会社 | Survey method, installation method, and air mark |
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