INSAR radar corner reflector fixing support

Abstract

The utility model discloses an INSAR radar corner reflector fixing support, and belongs to the technical field of corner reflectors, the INSAR radar corner reflector fixing support comprises a base, a support and an adjusting assembly, the base is provided with a limiting groove in the circumferential direction, and the base is detachably installed at a preset position through a locking piece; the bracket is movably mounted on the base in a limiting manner; one end of the support is movably connected with the corner reflector, and the other end of the support is provided with an adjusting assembly in transmission connection with the corner reflector. According to the utility model, the bracket is movably arranged on the base in a limiting manner, so that not only can the accurate position adjustment of the corner reflector in a horizontal plane be realized, but also the installation deviation can be compensated, the adjustment range is expanded, and the accuracy and the reliability of monitoring data are effectively ensured; the orientation of the corner reflector in the horizontal plane can be adjusted by loosening and tightening the locking piece, the operation is simple, and the standard requirement of high-precision INSAR monitoring can be met; precision pitch angle adjustment of the corner reflector can be achieved through the adjusting assembly, and the requirement that the corner reflector is accurately aligned with the view direction of a satellite radar is met.

Description

Technical Field

[0001] The utility model relates to the technical field of corner reflectors, in particular to a fixing bracket for an INSAR radar corner reflector. Background Art

[0002] Interferometric Synthetic Aperture Radar (INSAR) is a high-precision remote sensing technology that obtains surface deformation information through the phase difference of radar signals, and is widely used in geological disaster monitoring, infrastructure stability assessment and other fields. As a key auxiliary device, the corner reflector (CR) can enhance the radar echo signal and provide stable control points, but its performance often depends on the stability and accuracy of the fixing bracket. Traditional fixing brackets need to meet requirements such as rigid stability, strong weather resistance, accurate satellite pointing and convenient installation. They usually use aluminum alloy or stainless steel materials to resist wind load, temperature deformation and corrosion effects, and at the same time need to have functions such as angle adjustment to ensure that the main lobe of the reflector can accurately align with the satellite orbit (such as the fixed incident angle of Sentinel-1).

[0003] The applicant retrieved and obtained the following prior art. Specifically, the patent with the publication number CN215598407U discloses a corner reflector device for monitoring benchmarks, including a base, an adjustment component and an observation component. The base includes an upper plate, a lower support beam and a connecting column. The upper end of the connecting column is connected to the upper plate, and the lower end is connected to the lower support beam; the adjustment component includes an upper disc, a lower disc and a bracket; the lower disc is fixed on the upper plate; the upper disc is provided with an arc hole, and the upper disc and the lower disc are movably connected by a guiding screw passing through the arc hole; the bottom of the bracket is connected to the upper disc; the bracket includes a left support bracket, a right support bracket and a front support bracket; the front support bracket is movably connected to the adjustment bracket; this utility model is a corner reflector device that combines InSAR and GNSS, and at the same time includes a detachable level measurement component. The rotation adjustment of the device is realized by adopting an orbital base and chassis, and the adaptability for long-term field operation is improved by adopting ventilation and drainage holes, meeting the needs of the corner reflector as a monitoring benchmark.

[0004] It can be seen from the above patent that although the corner reflector device used for monitoring the benchmark realizes the rotation adjustment of the device by adopting a track-type base and chassis, and adopts ventilation and drainage holes to improve the adaptability of long-term operation in the field, and meets the needs of the corner reflector as a monitoring benchmark, the device can only rotate and pitch the corner reflector, and cannot achieve precise position adjustment of the corner reflector in the horizontal plane according to actual use. If there is an installation deviation in the base (such as uneven foundation or construction error, etc.), it is difficult to fully compensate only by rotation and pitch adjustment, which can easily lead to a fixed offset between the corner reflector and the preset monitoring position, and it is difficult to meet the requirements of the corner reflector for precise alignment with the satellite radar. This not only reduces the flexibility of the corner reflector, but also has a small adjustment range, and cannot guarantee the accuracy and reliability of the monitoring data. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects of the prior art and provide an INSAR radar corner reflector fixing bracket which has a large adjustment range of the corner reflector, high flexibility in use and can ensure the accuracy and reliability of monitoring data.

[0006] To achieve the above-mentioned purpose, the utility model provides an INSAR radar corner reflector fixing bracket, comprising a base, a bracket and an adjustment assembly, wherein the base is provided with a limiting groove along its circumference, and the base is detachably installed at a preset position by a locking piece penetrated in the limiting groove; the bracket is movably installed on the base in a limiting manner and is used to install the corner reflector; one end of the bracket is movably connected to the corner reflector, and the other end is provided with the adjustment assembly transmission-connected to the corner reflector, and the adjustment assembly is used to drive the corner reflector to move.

[0007] Preferably, a positioning groove is provided on the base along its extension direction, and a connecting seat is provided on the bracket at a position corresponding to the positioning groove. The adjustment assembly includes an adjusting rod and a fastener, one end of the adjusting rod is hinged to the corner reflector, and the other end passes through the connecting seat and the positioning groove in sequence and is detachably connected to the fastener.

[0008] Preferably, guide grooves are respectively provided on both sides of the positioning groove, the guide grooves are in the same extension direction as the positioning groove, and a boss is formed on the bracket to slide in contact with the guide grooves.

[0009] Preferably, it also includes a slide, which is arranged on the base and is used to drive the bracket and the corner reflector to move relative to the base.

[0010] Preferably, the adjusting component is any one of a cylinder, a hydraulic cylinder or an electric push rod, and the power output end of the adjusting component is hinged to the corner reflector.

[0011] Preferably, the adjusting assembly is any one of a cylinder, a hydraulic cylinder or an electric push rod, and the power output end of the adjusting assembly is hinged to the corner reflector.

[0012] Preferably, a plurality of the limiting grooves are uniformly and spacedly formed in the bottom of the base along its circumferential direction.

[0013] Beneficial effects:

[0014] 1. In a fixed bracket for an INSAR radar corner reflector of the present utility model, by movably mounting the bracket in a limited manner on the base and mounting the corner reflector on the bracket, the corner reflector can move synchronously with the bracket, so that not only can the precise position adjustment of the corner reflector in the horizontal plane be realized, but also the installation deviation caused by uneven ground or construction errors can be compensated, the adjustment range is expanded, the use flexibility is improved, and the accuracy and reliability of the monitoring data are effectively guaranteed.

[0015] 2. In a fixed bracket for an INSAR radar corner reflector of the present utility model, since the limiting grooves are formed in the bottom of the base along its circumferential direction, the staff can adjust the orientation of the corner reflector in the horizontal plane by loosening and tightening the locking member inserted into the limiting grooves, which is not only simple in operation and convenient in installation, but also can meet the reference requirements of high-precision INSAR monitoring.

[0016] 3. In a fixed bracket for an INSAR radar corner reflector of the present utility model, the corner reflector can swing up and down relative to the bracket under the action of the adjusting assembly, so as to realize the precise pitch angle adjustment of the corner reflector, and thereby can meet the visual direction requirement of the corner reflector for accurately aligning with the satellite radar, further expanding the adjustment range, and ensuring that the corner reflector can be stably maintained at a preset reasonable reflection angle for a long time to meet the high-precision requirements of INSAR monitoring. Description of the drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a schematic structural diagram of a fixed bracket for an INSAR radar corner reflector in a first perspective according to an embodiment of the present utility model;

[0019] Figure 2 is a schematic structural diagram of a fixed bracket for an INSAR radar corner reflector in a second perspective according to an embodiment of the present utility model;

[0020] Figure 3 is Figure 2 a partial enlarged view of area A in

[0021] Figure 4 is a schematic structural view of a fixing bracket for an INSAR radar corner reflector of an embodiment of the present utility model from a third perspective.

[0022] In the figure: 100 - a fixing bracket for an INSAR radar corner reflector; 200 - a corner reflector; 1 - a base; 2 - a bracket; 3 - an adjusting assembly; 4 - a limiting groove; 5 - a positioning groove; 6 - a connecting seat; 7 - an adjusting rod; 8 - a fastener; 9 - a guiding groove; 10 - a column. Specific embodiments

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0025] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] In the description of the present application, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present application. In addition, in the description of the present application, if terms such as "first", "second", etc. are used only for distinguishing descriptions, they cannot be understood as indicating or implying relative importance.

[0027] In addition, terms such as "horizontal" and "vertical" in the description of this application do not require the components to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0028] In the description of this application, it should also be noted that unless otherwise clearly specified and limited, terms such as "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0029] Embodiment 1:

[0030] The present utility model provides a fixing bracket 100 for an INSAR radar corner reflector.

[0031] In an embodiment of the present utility model, a fixing bracket 100 for an INSAR radar corner reflector includes a base 1, a bracket 2, and an adjusting assembly 3. The base 1 is provided with a limiting groove 4 along its circumferential direction, and the base 1 is detachably installed at a preset position through a locking member passing through the limiting groove 4; the bracket 2 is installed on the base 1 in a limited and movable manner and is used for installing the corner reflector 200; one end of the bracket 2 is movably connected to the corner reflector 200, and the other end is provided with an adjusting assembly 3 drivingly connected to the corner reflector 200, and the adjusting assembly 3 is used to drive the corner reflector 200 to move.

[0032] Specifically, as Figures 1 to 4As shown, during the use of a fixing bracket 100 for an INSAR radar corner reflector of the present utility model, since a limiting groove 4 is formed along the circumferential direction at the bottom of the base 1, it enables the staff to pass locking parts such as screws through the limiting groove 4 and connect the locking parts to the installation structure (such as a base station, etc.) at a preset position, thereby realizing the rapid installation of the fixing bracket 100 for an INSAR radar corner reflector of the present utility model. The structural design is simple and reasonable. At the same time, when it is necessary to adjust the orientation of the corner reflector 200 in the horizontal plane, the staff first loosens the locking part passing through the limiting groove 4 to release the fixed constraint between the base 1 and the installation structure. At this time, the staff can horizontally rotate the base 1 along the extension direction of the limiting groove 4, so that the rotation movement of the base 1 can synchronously drive the connected bracket 2 and the corner reflector 200 to adjust the orientation. And after the corner reflector 200 rotates to the preset target orientation, the staff can re-tighten the locking part to complete the orientation fixation of the corner reflector 200 in the horizontal plane. It is not only simple to operate and convenient to install, but also can meet the benchmark requirements of high-precision INSAR monitoring.

[0033] Furthermore, since the bracket 2 is installed on the base 1 in a limited and movable manner, the limited and movable installation method of the bracket 2 on the base 1 can be sliding clamping. For example, the staff can install a guide rail or form a sliding groove on the top of the base 1, and make the bracket 2 in sliding contact with the guide rail or the sliding groove, and fix and limit the bracket 2 by means of a snap pin, a pin shaft or a bolt connection, etc., so that the bracket 2 can perform linear displacement adjustment along the extension direction of the guide rail or the sliding groove in the horizontal plane. The structural design is simple and reasonable. At the same time, since the corner reflector 200 is installed on the bracket 2, the corner reflector 200 can move synchronously with the bracket 2. Furthermore, it can not only realize the precise position adjustment of the corner reflector 200 in the horizontal plane, but also compensate for the installation deviation caused by uneven ground or construction errors, etc., expand the adjustment range, improve the use flexibility, and effectively ensure the accuracy and reliability of the monitoring data.

[0034] Understandably, in a fixed bracket 100 of an INSAR radar corner reflector according to the present utility model, one end of the bracket 2 is hinged to the corner reflector 200, and an adjustment assembly 3 drivingly connected to the corner reflector 200 is provided at the other end. The adjustment assembly 3 can be a rack and pinion mechanism (the rack and pinion mechanism drives the linear movement of the rack through the rotation of the pinion, that is, the rack is hinged to the corner reflector 200) or a worm and worm gear transmission mechanism (the worm and worm gear transmission uses the rotation of the worm gear to drive the worm to achieve linear displacement, that is, the worm is hinged to the corner reflector 200) and other linear driving devices, so that the corner reflector 200 can lift and swing relative to the bracket 2 around the hinge point under the action of the adjustment assembly 3, thereby realizing the precise pitch angle adjustment of the corner reflector 200, and thus meeting the visual direction requirement of accurately aligning the corner reflector 200 with the satellite radar, further expanding the adjustment range, and ensuring that the corner reflector 200 can be stably maintained at a preset reasonable reflection angle for a long time to meet the high-precision requirements of INSAR monitoring.

[0035] In one embodiment, a positioning groove 5 is formed in the base 1 along its extending direction. A connecting seat 6 is provided at the position of the bracket 2 corresponding to the positioning groove 5. The adjustment assembly 3 includes an adjustment rod 7 and a fastener 8. One end of the adjustment rod 7 is hinged to the corner reflector 200, and the other end sequentially passes through the connecting seat 6 and the positioning groove 5 and is detachably connected to the fastener 8. Specifically, as Figures 1 to 4 shown, the adjustment rod 7 can be a screw rod in the prior art, and the fastener 8 can be a nut threadedly engaged with the adjustment rod 7. The screw rod and the nut both have the characteristics of simple structure, easy material selection, and convenient disassembly and assembly, so as to facilitate the staff to adjust the horizontal position and angular orientation of the corner reflector 200.

[0036] Furthermore, when it is necessary to adjust the horizontal position of the corner reflector 200, the staff can push the adjustment rod 7 along the extending direction of the positioning groove 5 after loosening the fastener 8. Since the adjustment rod 7 passes through the connecting seat 6 and the positioning groove 5 and is hinged to the corner reflector 200, the staff can drive the corner reflector 200 to move relative to the base 1 synchronously during the process of pushing the adjustment rod 7, and after the adjustment is in place, the fastener 8 can be tightened again to complete the limit fixation of the bracket 2 and the corner reflector 200. Thus, not only can the precise position adjustment of the corner reflector 200 in the horizontal plane be realized, but also the defect that the existing corner reflector 200 cannot be adjusted horizontally is made up, and the use is flexible and convenient. Understandably, when it is necessary to adjust the angular orientation of the corner reflector 200, the staff can screw the fastener 8, and drive the adjustment rod 7 to generate an axial displacement through the precise transmission of the thread pair (the fastener 8 and the adjustment rod 7), thereby precisely controlling the pitch angle of the corner reflector 200 around the hinge point and completing the pitch adjustment of the corner reflector 200 to meet the visual direction requirement of aligning the corner reflector 200 with the satellite radar.

[0037] It should be noted that in the actual production and manufacturing process of a fixed bracket 100 for an INSAR radar corner reflector of the present utility model, at least two adjusting rods 7 arranged at intervals are inserted into the positioning grooves 5, so as to prevent the bracket 2 from deflecting relative to the base 1 during the horizontal movement adjustment through multiple adjusting rods 7, ensuring the stability of the movement adjustment of the bracket 2. The structural design is simple and reasonable.

[0038] In another embodiment, as Figure 3 shown, guiding grooves 9 are respectively formed on both sides of the positioning groove 5, and the guiding grooves 9 are in the same extending direction as the positioning groove 5. A convex platform that is in sliding contact and cooperation with the guiding grooves 9 is formed on the bracket 2. It can be understood that when the bracket 2 is adjusted horizontally, the sliding contact and cooperation between the convex platform and the guiding grooves 9 can ensure the linearity of the movement of the bracket 2, effectively preventing phenomena such as deflection or jamming of the bracket 2 during the adjustment process.

[0039] In yet another embodiment, as Figure 1 shown, it further includes a sliding table, and the sliding table is arranged on the base 1 and is used to drive the bracket 2 and the corner reflector 200 to move relative to the base 1. It can be understood that a fixed bracket 100 for an INSAR radar corner reflector of the present utility model can drive the bracket 2 and the corner reflector 200 to perform horizontal position adjustment relative to the base 1 by adopting a sliding table, and the sliding table is preferably a linear screw sliding table driven by a servo motor, so as to be able to drive the bracket 2 and the corner reflector 200 to perform automatic horizontal position adjustment through the sliding table, and remote control can be realized through the Internet of Things module, and the corner reflector 200 can be automatically adjusted to a preset coordinate position in cooperation with satellite positioning data, without manual participation of staff in the adjustment operation, which not only reduces the labor intensity of the staff, but also simplifies the adjustment steps and improves the adjustment and installation efficiency.

[0040] In one embodiment, it can be understood that, as Figures 1 to 4 shown, the adjusting assembly 3 is any one of a cylinder, a hydraulic cylinder or an electric push rod, and the power output end of the adjusting assembly 3 is hinged to the corner reflector 200, so as to be able to automatically perform pitching adjustment on the corner reflector 200 through the adjusting assembly 3 without manual intervention in the pitching adjustment operation, further improving the adjustment and installation efficiency of the corner reflector 200 and significantly enhancing the convenience of the pitching adjustment of the corner reflector 200.

[0041] In one embodiment, the bracket 2 includes a plurality of columns 10, and the plurality of columns 10 are arranged at intervals and are hinged to the corner reflector 200. Specifically, as Figure 1 、 Figure 2 and Figure 4 shown, the corner reflector 200 can be supported and hinged at multiple points through the plurality of columns 10, so as to ensure the installation stability of the corner reflector 200, improve the overall structural strength and be reliable in use.

[0042] In one embodiment, a plurality of limiting grooves 4 are evenly spaced along the circumferential direction of the bottom of the base 1. Specifically, as Figure 1 shown, the base 1 can be connected and fixed at multiple points through the plurality of limiting grooves 4 and the locking members, thereby significantly improving the installation stability of the base 1 at the preset position and effectively enhancing the anti-overturning performance of the base 1.

[0043] The foregoing is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. An INSAR radar corner reflector fixing bracket, characterized in that: The invention comprises a base (1), a bracket (2) and an adjustment assembly (3); the base (1) is provided with a limiting groove (4) along its circumference; the base (1) is detachably mounted at a preset position by means of a locking member inserted into the limiting groove (4); the bracket (2) is movably mounted on the base (1) in a limiting manner and is used to mount a corner reflector; one end of the bracket (2) is movably connected to the corner reflector, and the other end is provided with the adjustment assembly (3) which is transmission-connected to the corner reflector; the adjustment assembly (3) is used to drive the corner reflector to move.

2. The INSAR radar corner reflector fixing bracket according to claim 1, characterized in that: The base (1) is provided with a positioning groove (5) along its extension direction; the bracket (2) is provided with a connecting seat (6) at a position corresponding to the positioning groove (5); the adjusting assembly (3) comprises an adjusting rod (7) and a fastener (8); one end of the adjusting rod (7) is hinged to the corner reflector, and the other end passes through the connecting seat (6) and the positioning groove (5) in sequence and is detachably connected to the fastener (8).

3. The INSAR radar corner reflector fixing bracket according to claim 2, characterized in that: Guide grooves (9) are respectively provided on both sides of the positioning groove (5), and the extension direction of the guide grooves (9) is consistent with that of the positioning groove (5). A boss is formed on the bracket (2) and is in sliding contact with the guide grooves (9).

4. The INSAR radar corner reflector fixing bracket according to claim 1, characterized in that: It also comprises a slide, which is arranged on the base (1) and is used to drive the bracket (2) and the corner reflector to move relative to the base (1).

5. The INSAR radar corner reflector fixing bracket according to claim 4, characterized in that: The adjustment component (3) is any one of a cylinder, a hydraulic cylinder or an electric push rod, and a power output end of the adjustment component (3) is hinged to the corner reflector.

6. An INSAR radar corner reflector fixing bracket according to any one of claims 1 to 5, characterized in that: The support (2) comprises a plurality of upright posts (10), wherein the plurality of upright posts (10) are arranged at intervals and are hinged to the corner reflectors.

7. An INSAR radar corner reflector fixing bracket according to any one of claims 1 to 5, characterized in that: The bottom of the base (1) is provided with a plurality of limit grooves (4) evenly and at intervals along its circumference.

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