Combined corner reflector convenient to accurately install

Abstract

The invention discloses a combined corner reflector convenient for accurate installation, which comprises a fixed box, a disc gear is rotatably connected above the fixed box, the disc gear is in meshed connection with a stable gear rod, a sensing motor is arranged at the side part of the stable gear rod, the sensing motor is in transmission connection with a first transmission belt, and the first transmission belt is in transmission connection with a support rotating plate. The supporting rotating plate is slidably connected with a first sliding connection strip, and a second sliding connection strip is arranged on the side, close to the supporting rotating plate, of the side of the first sliding connection strip. In earth surface deformation monitoring, the size of the combined corner reflector can be flexibly adjusted according to actual requirements, the size of the corner reflector can be rapidly reduced or increased through the unique structural design, such as cooperation of a first gear, a first rack, a second rack and a related supporting rod, transportation, field assembly and accurate posture adjustment are facilitated, and the combined corner reflector is convenient to use. The applicability of the method to SAR images with different resolutions is greatly improved, the method is easier to reuse in the later period, and the enterprise cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of corner reflectors, and in particular to a combined corner reflector that is convenient for precise installation. Background Art

[0002] Surface deformation is a deformation phenomenon that occurs on the Earth's surface under the action of various natural and human factors. DInSAR technology has been widely used in surface deformation monitoring. Its characteristics of large observation range, high spatial resolution, non-contact measurement, and all-day and all-weather operation greatly make up for the deficiencies of traditional measurement methods. However, affected by factors such as spatio-temporal decorrelation and atmospheric delay effects, the application of DInSAR technology is greatly limited. In order to overcome the adverse factor of fewer high-coherence point targets in the study area, artificial corner reflectors are used in surface deformation monitoring, and a set of CR-InSAR technology based on corner reflectors has been derived.

[0003] A corner reflector generally consists of three mutually perpendicular reflecting surfaces, which can return the incident electromagnetic wave along the original path. However, most of the existing corner reflectors adopt a fixed structure, especially large-sized corner reflectors, which are not convenient for transportation and precise measurement of azimuth and elevation angles. Moreover, once produced, their sizes are fixed, resulting in low reusability and causing great waste to the user units. In view of this, the present invention proposes a combined corner reflector that is convenient for precise installation. Summary of the Invention

[0004] In view of the problems in the related art, the present invention proposes a combined corner reflector that is convenient for precise installation to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A combined corner reflector that is convenient for precise installation, including a fixed box. A disc gear is rotatably connected above the fixed box. The disc gear is meshed and connected with a stable gear rod. A sensing motor is arranged on the side of the stable gear rod. The sensing motor is drivingly connected with a first transmission belt. The first transmission belt is drivingly connected with a support rotating plate. The support rotating plate is slidably connected with a first sliding strip. A second sliding strip is arranged on the side of the first sliding strip close to the support rotating plate. A third sliding strip is arranged on the side of the second sliding strip close to the support rotating plate. A third fixing plate is fixedly connected to the side of the second sliding strip. A first fixing plate is arranged on the side of the third sliding strip. A second fixing plate is arranged on the side of the first sliding strip. A support body is arranged on the side of the third fixing plate. A second gear is rotatably connected to the support body. One side of the second gear is drivingly connected with a rotating lead screw. The rotating lead screw is threadedly connected with an engaging block. The other side of the engaging block is meshed and connected with a sliding rack. A baffle plate that abuts against the combined plate is arranged below the sliding rack. An adjusting mechanism for adapting to the terrain width is arranged below the fixed box.

[0007] The above technical solution further includes:

[0008] The adjusting mechanism includes a support frame arranged on the side of the fixed box. A first gear is rotatably connected above the support frame. A first rack is arranged on one side of the first gear. The other side of the first gear is meshed and connected with a second rack. A second sliding frame is fixedly connected to the side of the second rack. The second sliding frame is slidably connected with a second support rod. A first sliding frame is arranged on the side of the first rack. The first sliding frame is slidably connected with a first support rod.

[0009] The sliding rack is slidably connected with a support body. A rotating rod is rotatably connected to the support body. The rotating rod is drivingly connected with a second transmission belt. The second transmission belt is drivingly connected with a rotating lead screw. One end of the rotating lead screw is rotatably connected with a fixed block. The fixed block is fixed on the side of the third fixing plate to provide support for the combined plate and ensure its stability during the working process. At the same time, the support body serves as a connection hub for multiple transmission components such as the second gear, the rotating rod, and the second transmission belt, realizing the power transmission and motion conversion between the rotating lead screw and the combined plate. During the assembly and angle adjustment of large corner reflectors, the support body plays a key role. For example, when the rotating lead screw rotates, through the transmission components on the support body, power is transmitted to the combined plate, enabling it to move and adjust the angle precisely, ensuring close cooperation with other components, and realizing the stable construction and efficient operation of large corner reflectors.

[0010] No less than two baffle plates for abutting against the combined plate are arranged on the side of the third fixing plate. When the combined plate fits against the side of the third fixing plate, the baffle plates can just abut against the surface of the combined plate.

[0011] Above the fixed box, a disc gear is rotatably connected. The disc gear is meshed with a stable gear rod. The fixed box is rotatably connected with the stable gear rod. A sensing motor is arranged on the side of the stable gear rod. The sensing motor is drivingly connected with a first transmission belt. The first transmission belt is drivingly connected with a support rotating plate. The stable gear rod is rotatably connected with the support rotating plate.

[0012] On the side of the support rotating plate, three chutes are arranged for assembling a first sliding strip, a second sliding strip and a third sliding strip.

[0013] Below the support frame, universal rollers are arranged for moving the fixed box, which facilitates the movement of the fixed box and the entire corner reflector thereon on the ground, improving the mobility of the device. In scenarios where the position of the corner reflector needs to be frequently changed, such as in large warehouses for cargo inspection or around airport runways for equipment debugging, the universal rollers can enable operators to easily push the corner reflector to the designated position, reducing the workload and time cost of manual handling. Moreover, the flexible steering characteristics of the universal rollers enable the corner reflector to quickly turn and move in a narrow space, further enhancing its operational convenience in complex environments.

[0014] A door body is arranged on the side of the fixed box. Inside the fixed box, a storage cavity is arranged for placing repair parts.

[0015] At the bottom of the first support rod, legs are arranged. At the bottom of the second support rod, legs for support are also arranged. When the corner reflector is in different width states, additional support force is provided for the first sliding frame and the second sliding frame, enhancing the stability of the entire adjustment mechanism. When the corner reflector is expanded to a larger size, the first support rod and the second support rod can effectively disperse the weight of the device, preventing deformation or damage caused by unstable structure. At the same time, during transportation, they can serve as fixing components to fix the first sliding frame and the second sliding frame in the contracted state, avoiding damage to components caused by shaking during movement, and further improving the reliability and durability of the corner reflector.

[0016] The support frame is slidably connected with a second sliding frame. The support frame is slidably connected with a first sliding frame.

[0017] The present invention has the following beneficial effects:

[0018] 1. In the present invention, the combined corner reflector can be flexibly combined into small or large corner reflectors according to actual needs. At the location where a small corner reflector is required, by rotating the first gear to drive the first rack and the second rack to slide, the first support rod and the second support rod are brought closer to the support frame. At the same time, the sliding bar is slid into the sliding groove of the support rotating plate and the fixing plate is fixed, and the combination of the small corner reflector can be quickly completed. When a large reflector is needed, by supporting the combination plate and controlling the rotation of the rotating screw rod, the connecting block drives the combination plate to fit the fixing plate, and then the gear transmission is used to make the abutting baffle contact the combination plate to ensure its stability, and the assembly of the large corner reflector is completed. This flexible combination method greatly improves the applicability of the corner reflector, can meet the use requirements of different places and different scales, avoids the problem that the specific scenario cannot be met due to the single specification of the reflector, and enhances the versatility of the product.

[0019] 2. The combined corner reflector of the present invention has an accurate angle adjustment function. Horizontally, by driving the stable gear rod to rotate through the disc gear, the accurate rotation of the corner reflector in the horizontal direction can be realized; vertically, by controlling the sensing motor to drive the first transmission belt, the angle rotation of the support rotating plate can be accurately controlled. This accurate angle adjustment ability enables the corner reflector to flexibly adjust the angle according to the actual use situation, such as the signal reflection direction, the monitoring range, etc., so as to ensure that it can achieve the best working effect in different working environments and application scenarios, improve the working efficiency and accuracy of the corner reflector, and provide more reliable technical support for the applications in related fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of a combined corner reflector for easy and accurate installation proposed by the present invention;

[0021] Figure 2 is Figure 1 an enlarged schematic diagram at A in

[0022] Figure 3 is a schematic side view structural diagram of a combined corner reflector for easy and accurate installation proposed by the present invention;

[0023] Figure 4 is Figure 3 an enlarged schematic diagram at B in

[0024] Figure 5 is a schematic partial structural diagram of a combined corner reflector for easy and accurate installation proposed by the present invention;

[0025] Figure 6 is a schematic structural diagram of the rotating mechanism of a combined corner reflector for easy and accurate installation proposed by the present invention.

[0026] In the figure: 1. Fixed box; 2. Support frame; 3. First sliding frame; 4. Second sliding frame; 5. First rack; 6. First gear; 7. Second rack; 8. First support rod; 9. Second support rod; 10. Universal roller; 11. Disk gear; 12. Stable gear rod; 13. Sensing motor; 14. First transmission belt; 15. Support rotating plate; 16. First sliding connection bar; 17. Second sliding connection bar; 18. Third sliding connection bar; 19. First fixed plate; 20. Second fixed plate; 21. Third fixed plate; 22. Combined plate; 23. Support body; 24. Fixed block; 25. Rotating lead screw; 26. Connecting block; 27. Rotating rod; 28. Second gear; 29. Second transmission belt; 30. Sliding rack; 31. Baffle plate. Detailed implementation manner

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1 - 6 As shown in the figure, the present invention is a combined corner reflector convenient for precise installation, including a fixed box 1. A disk gear 11 is rotatably connected above the fixed box 1. The disk gear 11 is meshed with a stable gear rod 12. A sensing motor 13 is arranged on the side of the stable gear rod 12. The sensing motor 13 is drivingly connected with a first transmission belt 14. The first transmission belt 14 is drivingly connected with a support rotating plate 15. The support rotating plate 15 is slidably connected with a first sliding connection bar 16. A second sliding connection bar 17 is arranged on the side of the first sliding connection bar 16 close to the support rotating plate 15. A third sliding connection bar 18 is arranged on the side of the second sliding connection bar 17 close to the support rotating plate 15. A third fixed plate 21 is fixedly connected to the side of the second sliding connection bar 17. A first fixed plate 19 is arranged on the side of the third sliding connection bar 18. A second fixed plate 20 is arranged on the side of the first sliding connection bar 16. A support body 23 is arranged on the side of the third fixed plate 21. A second gear 28 is rotatably connected to the support body 23. One side of the second gear 28 is drivingly connected with a rotating lead screw 25. The rotating lead screw 25 is threadedly connected with a connecting block 26. The other side of the connecting block 26 is meshed with a sliding rack 30. A baffle plate 31 for pressing against the combined plate 22 is arranged below the sliding rack 30. An adjusting mechanism for adapting to the terrain width is arranged below the fixed box 1.

[0029] In one embodiment, for the above-mentioned adjusting mechanism, the adjusting mechanism includes a support frame 2 provided on the side of the fixed box 1. A first gear 6 is rotatably connected above the support frame 2. A first rack 5 is provided on one side of the first gear 6. A second rack 7 is meshed and connected on the other side of the first gear 6. A second sliding frame 4 is fixedly connected to the side of the second rack 7. A second support rod 9 is slidably connected to the second sliding frame 4. A first sliding frame 3 is provided on the side of the first rack 5. A first support rod 8 is slidably connected to the first sliding frame 3.

[0030] In this embodiment, it provides stable support for the corner reflector to ensure the stability of the entire device under different terrain conditions. Its connection structure with the fixed box 1 enables the corner reflector to be finely adjusted in height and angle according to actual needs. For example, on uneven ground, by adjusting the height or angle of the support frame 2, the fixed box 1 can be kept horizontal, so as to ensure that the reflection components on the support rotating plate 15 can accurately reflect signals. At the same time, the cooperation between the support frame 2 and the first sliding frame 3 and the second sliding frame 4 realizes the adjustment of the width of the device, enabling it to adapt to the passing requirements of different narrow spaces, and enhancing the adaptability of the corner reflector in complex terrains and space-limited environments.

[0031] In one embodiment, for the above-mentioned sliding rack 30, the sliding rack 30 is slidably connected to a support body 23. The support body 23 is rotatably connected to a rotating rod 27. The rotating rod 27 is drivingly connected to a second transmission belt 29. The second transmission belt 29 is drivingly connected to a rotating lead screw 25. One end of the rotating lead screw 25 is rotatably connected to a fixed block 24. The fixed block 24 is fixed to the side of the third fixing plate 21.

[0032] In one embodiment, for the above-mentioned third fixing plate 21, at least two groups of baffle plates 31 for abutting against the combined plate 22 are provided on the side of the third fixing plate 21. When the combined plate 22 is attached to the side of the third fixing plate 21, the baffle plates 31 can just abut against the surface of the combined plate 22.

[0033] In this embodiment, they are respectively fixed on the first sliding strip 16, the second sliding strip 17 and the third sliding strip 18 for fixing the reflecting surface such as the combined plate 22 to ensure the flatness and stability of the reflecting surface. During the working process of the corner reflector, a stable reflecting surface is the key to ensuring good reflection effects. The first fixing plate 19, the second fixing plate 20 and the third fixing plate 21 can firmly fix the combined plate 22 to prevent it from deforming or displacing when subjected to external forces such as wind blowing and vibration, thereby ensuring that the reflection performance of the corner reflector is always stable and reliable. At the same time, their structural designs also consider the cooperation with other components, facilitating the assembly and disassembly processes of the corner reflector and improving the maintenance convenience of the device.

[0034] In one embodiment, for the above-mentioned fixed box 1, a disc gear 11 is rotatably connected above the fixed box 1. The disc gear 11 is meshed with a stable gear rod 12. The fixed box 1 is rotatably connected with the stable gear rod 12. A sensing motor 13 is arranged on the side of the stable gear rod 12. The sensing motor 13 is drivingly connected with a first transmission belt 14. The first transmission belt 14 is drivingly connected with a support rotating plate 15. The stable gear rod 12 is rotatably connected with the support rotating plate 15.

[0035] In this embodiment, as the basic support structure of the entire corner reflector, other components are integrated together to protect the internal components from the external environment. For example, in a complex outdoor environment, such as in the presence of dust, rain, and collisions, the fixed box 1 can prevent the internal precision adjustment mechanism, sliding strips, fixed plates, and electrical components such as the sensing motor 13 from being damaged, ensuring the normal operation and long-term stability of the corner reflector.

[0036] In one embodiment, for the above-mentioned support rotating plate 15, three groups of chutes for assembling the first sliding strip 16, the second sliding strip 17, and the third sliding strip 18 are arranged on the side of the support rotating plate 15.

[0037] In this embodiment, as the bearing platform for the reflector components of the corner reflector, such as the first sliding strip 16, the second sliding strip 17, the third sliding strip 18, and the fixed plates and combined plates 22 thereon, the support rotating plate 15 not only needs to ensure the stable installation of the reflector components but also be able to achieve precise angle adjustment. Its cooperation with the disc gear 11, the stable gear rod 12, the sensing motor 13, and the first transmission belt 14 enables the reflector components to rotate flexibly in the horizontal and vertical directions to adapt to the signal incident requirements in different directions. At the same time, the chute design on the support rotating plate 15 facilitates the installation and adjustment of the first sliding strip 16, the second sliding strip 17, and the third sliding strip 18, providing convenient conditions for the rapid assembly and size transformation of the corner reflector and improving the operability of the device.

[0038] In one embodiment, for the above-mentioned control rod 9, universal wheels 10 for moving the fixed box 1 are arranged below the support frame 2. A door body is arranged on the side of the fixed box 1. A storage cavity for placing repair parts is arranged inside the fixed box 1.

[0039] In one embodiment, for the above-mentioned first support rod 8, legs are arranged at the bottom of the first support rod 8. Legs for support are also arranged at the bottom of the second support rod 9. The support frame 2 is slidably connected with a second sliding frame 4. The support frame 2 is slidably connected with a first sliding frame 3.

[0040] In this embodiment, when the corner reflector is in different width states, additional support forces are provided for the first sliding frame 3 and the second sliding frame 4 to enhance the stability of the entire adjustment mechanism. When the corner reflector expands to a larger size, the first support rod 8 and the second support rod 9 can effectively disperse the weight of the device, preventing deformation or damage caused by structural instability. At the same time, during transportation, they can serve as fixing components to fix the first sliding frame 3 and the second sliding frame 4 in the contracted state, avoiding damage to components caused by shaking during movement, and further improving the reliability and durability of the corner reflector.

[0041] The working principle of a combined corner reflector that is convenient for precise installation in the present invention is as follows. When in some locations where a small corner reflector is required, by rotating the first gear 6, the first rack 5 and the second rack 7 on both sides of the first gear 6 will slide until the first support rod 8 and the second support rod 9 on both sides approach the support frame 2 and then stop. It can pass through some locations where a small reflector is needed. At the same time, slide the first sliding strip 16, the second sliding strip 17, and the third sliding strip 18 to the positions of the support rotating plate 15 with sliding grooves, and then fix the first fixing plate 19, the second fixing plate 20, and the third fixing plate 21 to the sides of the first sliding strip 16, the second sliding strip 17, and the third sliding strip 18 respectively. At this time, the small corner reflector is assembled and is convenient for assembly in some places that require combination. If a large reflector is needed, support the combination plate 22 to one side of the third fixing plate 21, and then control the rotation of the rotating screw rod 25. At this time, the connecting block 26 gradually approaches the third fixing plate 21 on one side of the rotating screw rod 25 until the side of the combination plate 22 fits against the side of the third fixing plate 21. Then, when the rotating screw rod 25 rotates, the side will drive the rotating rod 27 to rotate. The rotating rod 27 rotates to drive the second gear 28, and the second gear 28 will engage with the sliding rack 30, so that the baffle 31 fixed below the sliding rack 30 abuts against the side of the combination plate 22. By providing no less than two groups of baffles 31 on one side of the combination plate 22, the combination plate 22 is ensured not to shake. When adjusting the angle, the stable gear rod 12 is driven to rotate by the disc gear 11 to ensure the rotation of the corner reflector in the horizontal direction. If it rotates in the vertical angle, control the sensing motor 13 fixed to the side of the stable gear rod 12, so that the sensing motor 13 drives the first transmission belt 14 to control the rotation of the angle of the support rotating plate 15. At this time, the large corner reflector is assembled and can work normally.

[0042] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined corner reflector that is easy to install accurately, characterized in that: The invention comprises a fixed box (1), wherein a disc gear (11) is rotatably connected to the top of the fixed box (1), wherein the disc gear (11) is meshingly connected to a stabilizing gear rod (12), wherein a sensor motor (13) is arranged on the side of the stabilizing gear rod (12), wherein the sensor motor (13) is transmission-connected to a first transmission belt (14), wherein the first transmission belt (14) is transmission-connected to a supporting rotating plate (15), wherein the supporting rotating plate (15) is slidably connected to a first sliding strip (16), wherein a second sliding strip (17) is arranged on a side of the first sliding strip (16) close to the supporting rotating plate (15), wherein a third sliding strip (18) is arranged on a side of the second sliding strip (17) close to the supporting rotating plate (15), wherein a second sliding strip (17) is fixedly connected to the side of the second sliding strip (17). A third fixed plate (21) is fixedly connected, a first fixed plate (19) is arranged on the side of the third sliding strip (18), a second fixed plate (20) is arranged on the side of the first sliding strip (16), a support body (23) is arranged on the side of the third fixed plate (21), the support body (23) is rotatably connected to a second gear (28), one side of the second gear (28) is transmission-connected to a rotating screw rod (25), the rotating screw rod (25) is threadedly connected to a connecting block (26), the other side of the connecting block (26) is meshingly connected to a sliding rack (30), a stop plate (31) is arranged below the sliding rack (30) to abut against the combined plate (22), and an adjustment mechanism for adapting to the width of the terrain is arranged below the fixed box (1); When in use, the support rotating plate (15) is fixed on the top of the fixed box (1), the second sliding strip (17) slides to one side of the support rotating plate (15), the first sliding strip (16) slides to one side of the support rotating plate (15), the third sliding strip (18) slides to one side of the support rotating plate (15), the third fixed plate (21) is fixed to the side of the second sliding strip (17), the first fixed plate (19) is fixed to the side of the third sliding strip (18), the second fixed plate (20) is fixed to the side of the first sliding strip (16), and a large The corner reflector is rotated, the rotating screw rod (25) is threadedly connected to a connecting block (26) fixed on the side of the combination plate (22), the combination plate (22) gradually approaches the side of the third fixed plate (21), the rotating screw rod (25) drives the rotating rod (27) to rotate, the rotating rod (27) drives the second gear (28) to rotate, the second gear (28) is meshed with the sliding rack (30), the sliding rack (30) slides down, and the stop plate (31) fixed at the bottom of the sliding rack (30) abuts against the combination plate (22).

2. A combined corner reflector that is easy to install accurately according to claim 1, characterized in that: The adjustment mechanism comprises a support frame (2) arranged at the side of the fixed box (1); a first gear (6) is rotatably connected to the top of the support frame (2); a first rack (5) is arranged on one side of the first gear (6); a second rack (7) is meshingly connected to the other side of the first gear (6); a second sliding frame (4) is fixedly connected to the side of the second rack (7); the second sliding frame (4) is slidably connected to a second support rod (9); a first sliding frame (3) is arranged on the side of the first rack (5); and the first sliding frame (3) is slidably connected to a first support rod (8).

3. The combined corner reflector that is easy to install accurately according to claim 1, characterized in that: The sliding rack (30) is slidably connected to a support body (23), the support body (23) is rotatably connected to a rotating rod (27), the rotating rod (27) is transmission-connected to a second transmission belt (29), the second transmission belt (29) is transmission-connected to a rotating screw rod (25), one end of the rotating screw rod (25) is rotatably connected to a fixed block (24), and the fixed block (24) is fixed to a side of a third fixed plate (21).

4. The combined corner reflector that is easy to install accurately according to claim 1, characterized in that: The side of the third fixing plate (21) is provided with at least two groups of abutment plates (31) for abutting against the combined plate (22); when the combined plate (22) is attached to the side of the third fixing plate (21), the abutment plates (31) can just abut against the surface of the combined plate (22).

5. The combined corner reflector that is easy to install accurately according to claim 1, characterized in that: A disc gear (11) is rotatably connected to the top of the fixed box (1), and the disc gear (11) is meshedly connected to a stabilizing gear rod (12). The fixed box (1) is rotatably connected to the stabilizing gear rod (12), and a sensor motor (13) is arranged on the side of the stabilizing gear rod (12). The sensor motor (13) is transmission-connected to a first transmission belt (14), and the first transmission belt (14) is transmission-connected to a supporting rotating plate (15), and the stabilizing gear rod (12) is rotatably connected to the supporting rotating plate (15).

6. The combined corner reflector that is easy to install accurately according to claim 1, characterized in that: The side of the support rotating plate (15) is provided with three groups of sliding grooves for assembling the first sliding strip (16), the second sliding strip (17) and the third sliding strip (18).

7. The combined corner reflector that is easy to install accurately according to claim 2, characterized in that: A universal roller (10) for moving the fixed box (1) is arranged below the support frame (2).

8. The combined corner reflector that is easy to install accurately according to claim 1, characterized in that: The fixed box (1) is provided with a door body on its side, and the fixed box (1) is provided with a storage cavity for placing repair parts inside.

9. The combined corner reflector that is easy to install accurately according to claim 2, characterized in that: The bottom of the first support rod (8) is provided with a support leg, and the bottom of the second support rod (9) is also provided with a support leg for support.

10. The combined corner reflector that is easy to install accurately according to claim 2, characterized in that: The support frame (2) is slidably connected to a second sliding frame (4), and the support frame (2) is slidably connected to the first sliding frame (3).

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