GNSS (Global Navigation Satellite System) displacement measurement foundation device

Abstract

The utility model relates to a GNSS displacement measurement base device, and relates to the technical field of GNSS displacement measurement equipment.The GNSS displacement measurement base device comprises a supporting column vertically fixed to the ground and an installation plate arranged at the top end of the supporting column, an equipment body is installed on the installation plate, and a photovoltaic module is fixedly connected to the side wall of the supporting column; the photovoltaic assembly is electrically connected with the equipment body, the diameter of the bottom end of the supporting column is larger than that of the top end of the supporting column, the supporting column is arranged in a hollow mode, a damping assembly for damping the supporting column is arranged in the supporting column, and an installation piece for installing the equipment body is arranged on the installation plate. According to the invention, the precision problem of the GNSS displacement measurement equipment caused by the vibration of the fixed support in an extreme environment is reduced, and the service life of the GNSS displacement measurement equipment is prolonged.

Description

Technical Field

[0001] This application relates to the technical field of GNSS equipment supports, and in particular to a GNSS displacement measurement base device. Background Technology

[0002] Currently, the basic principle of GNSS displacement measurement equipment is to receive signals transmitted by multiple satellites, calculate the distance between the receiver and the satellites by using the time difference of signal arrival, and thus determine the three-dimensional coordinates of the receiver. By measuring the coordinates of the same location at different time points, the displacement of that location can be calculated.

[0003] GNSS displacement measurement equipment is often used in earthquake monitoring, landslide monitoring, structural monitoring, reservoir safety, and settlement detection of urban infrastructure. A common GNSS displacement measurement equipment mounting bracket consists of a bracket fixed to the ground with anchor bolts. Multiple reinforcing plates are fixedly connected to the outer perimeter of the bracket along its circumference. These reinforcing plates are evenly spaced along the circumference of the bracket and arranged in a triangular pattern. The bottom ends of the reinforcing plates are fixed to the ground. A mounting plate with mounting holes is welded to the top of the bracket. The GNSS displacement measurement equipment is then fixed to the mounting plate with bolts.

[0004] Regarding the aforementioned technologies, when using the fixed bracket to fix the GNSS displacement measurement equipment for earthquake or landslide monitoring, the bracket may sway under the influence of wind or earthquakes. This swaying is transmitted to the GNSS displacement measurement equipment, affecting its measurement accuracy and thus its service life. Utility Model Content

[0005] In order to reduce the accuracy problems caused by vibration of the fixed support under extreme environments to the GNSS displacement measurement equipment and to improve the service life of the GNSS displacement measurement equipment, this application provides a GNSS displacement measurement base device.

[0006] The GNSS displacement measurement base device provided in this application adopts the following technical solution:

[0007] A GNSS displacement measurement base device includes a vertically fixed support column and an installation plate at the top of the support column. The device body is installed on the installation plate, and a photovoltaic module is fixedly connected to the side wall of the support column. The photovoltaic module is electrically connected to the device body. The bottom diameter of the support column is larger than the top diameter. The support column is hollow and has a shock-absorbing component inside to reduce vibration. The installation plate has mounting parts for installing the device body.

[0008] The shock absorption assembly includes a first mounting ring and a second mounting ring slidably disposed within the support column. The first mounting ring and the second mounting ring are coaxially fixed and arranged opposite each other. The first mounting ring is located above the second mounting ring, and the outer peripheral walls of both the first mounting ring and the second mounting ring are in contact with the inner peripheral wall of the support column. A counterweight is elastically disposed between the first mounting ring and the second mounting ring.

[0009] By adopting the above technical solution, when installing the GNSS displacement measurement equipment, technicians first install the first mounting ring, the second mounting ring, and the counterweight inside the support column. Since the support column is narrower at the top and wider at the bottom, the weight of the GNSS displacement measurement equipment is distributed through the inclined support column, improving the stability of the support column during installation. At the same time, when the support column is shaken or vibrated, the elastically set counterweight will swing. Since the swing direction of the mass block is opposite to the vibration direction of the building, it consumes the vibration energy of the support column, thereby reducing the sway amplitude of the support column, thus reducing the sway amplitude of the GNSS equipment and improving the measurement accuracy of the GNSS displacement measurement equipment.

[0010] Optionally, both the first mounting ring and the second mounting ring are provided with multiple sets of traction springs. One end of the traction spring on the first mounting ring is connected to the first mounting ring, and the other end is connected to the counterweight. One end of the traction spring on the second mounting ring is connected to the second mounting ring. The multiple sets of traction springs on the first mounting ring are arranged at intervals along the circumference of the first mounting ring, and the multiple sets of traction springs on the second mounting ring are arranged at intervals along the circumference of the second mounting ring.

[0011] By adopting the above technical solution, and by setting multiple sets of traction springs, when the support pillar sways in any direction, the traction springs can generate an elastic force in the opposite direction to the counterweight, thereby causing the counterweight to sway in the opposite direction to the support pillar, thus reducing the sway of the support pillar itself, achieving the effect of vibration reduction of the support pillar, and improving the stability of the support pillar itself after construction.

[0012] Optionally, the mounting component is provided on the fixed plate at the top of the mounting plate, the measuring device body is fixed on the fixed plate, a pad is fixedly connected between the fixed plate and the mounting plate, the pad is a rubber pad, and the fixed plate is rotatably mounted on the mounting plate. The mounting plate is also provided with a rotating component for adjusting the rotation angle of the fixed plate.

[0013] Because the rotation angle of the GNSS needs to be adjusted according to the on-site working conditions to achieve the most suitable detection angle and monitoring position, conventional GNSS displacement measurement equipment is bolted to the bracket. Therefore, the rotation angle needs to be accurately calculated before installation, which is inconvenient for later adjustment. With the above solution, when fine adjustments are needed during on-site installation, technicians drive the fixed plate to rotate through the rotating component, thereby adjusting the GNSS displacement measurement equipment. At the same time, the rubber pads further buffer the fixed plate when it is installed on the mounting plate. When the bracket is subjected to slight vibration, the rubber pads dampen the fixed plate, thereby reducing the possibility that the vibration of the bracket will directly affect the stability of the internal parts of the GNSS displacement measurement equipment and extending the service life of the GNSS displacement measurement equipment.

[0014] Optionally, the rotating component includes an adjusting ring rotatably mounted on the fixed plate, an adjusting screw slidably mounted on the fixed plate, the adjusting screw slidably passing through the mounting plate and threadedly adapted to the adjusting ring, and a limiting structure restricting the rotation of the adjusting screw on the mounting block. A clamping plate is fixedly connected to one end of the adjusting screw passing through the mounting plate, and the clamping plate movably clamps against the side of the mounting plate away from the fixed plate.

[0015] By adopting the above technical solution, when it is necessary to adjust the rotation angle of the GNSS displacement measuring equipment, the technician rotates the adjusting ring to loosen the adjusting screw. At this time, the adjusting screw is limited by the limiting structure and only descends without rotating, thereby separating the clamping plate from the mounting plate. This allows the fixed plate and the mounting plate to rotate relative to each other. The technician can then adjust the angle of the GNSS displacement measuring equipment by rotating the fixed plate.

[0016] After the angle adjustment is completed, the technicians rotate the adjusting ring to raise the adjusting screw until the clamping plate and the bottom side of the mounting plate are pressed together. Under the action of the clamping plate and the adjusting ring, the fixed plate and the mounting plate are stably installed, reducing the steps of tightening multiple bolts when fixing with conventional bolts, and improving the installation and adjustment efficiency of GNSS displacement measurement equipment.

[0017] Optionally, one end of the adjusting screw located inside the support column is connected to the first mounting ring.

[0018] By adopting the above technical solution, the adjusting screw is connected to the first mounting ring, which further enhances the stability of the installation between the fixed plate and the mounting block under the action of the counterweight when the GNSS displacement measuring equipment is used, thereby improving the accuracy of the GNSS displacement measuring equipment. At the same time, when the adjusting screw is raised by rotating the adjusting ring, the fixed plate is pressed down under the action of the counterweight. When the adjusting screw rises to the point where the clamping block and the mounting plate are pressed together, the first mounting ring and the second mounting ring move to the position where they are pressed against the inner wall of the support column, so that the counterweight, the first mounting ring, and the second mounting ring are also installed stably inside the support column.

[0019] Since the support column is often made of steel structure in one piece, it is inconvenient to fix the first mounting ring, the second mounting ring and the counterweight. By fixing the adjusting screw to the first mounting ring, the fixed plate and the mounting plate can be installed stably at the same time, and the first mounting ring and the second mounting ring can be installed stably. The first mounting ring, the second mounting ring and the counterweight improve the stability of the fixed plate installation.

[0020] Optionally, the limiting structure includes a limiting groove formed on the outer peripheral wall of the adjusting screw and a limiting block fixed to the mounting plate, wherein the limiting block is slidably adapted to the limiting groove.

[0021] By adopting the above technical solution, the limiting block and limiting groove are set so that when the technician rotates the adjusting ring to adjust the adjusting screw, the adjusting screw can only move up and down and not rotate under the action of the limiting block and limiting groove, thereby realizing the adjustment of the distance between the fixed plate and the mounting plate.

[0022] Optionally, a lever is rotatably mounted on the fixed plate, the lever protruding from the fixed plate, and a receiving groove is provided on the fixed plate, with the lever located within the receiving groove.

[0023] By adopting the above technical solution, since the fixing plate and the mounting plate are often set with their outer periphery flush to ensure aesthetics, they are usually not convenient for rotation adjustment. By rotating the lever, when it is necessary to rotate and adjust the fixing plate and the GNSS displacement measuring equipment, the technician can rotate the lever so that the lever protrudes from the fixing plate. At this time, the technician can adjust the rotation angle of the fixing plate by rotating the lever. The operation is simple. After the rotation adjustment of the fixing plate is completed, the technician can rotate the lever so that the lever is in the receiving groove, thereby reducing accidental collisions during installation and maintenance and improving the stability of the installation of the fixing plate and the GNSS displacement measuring equipment.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By using a support column that is narrower at the top and wider at the bottom, a first mounting ring and a second mounting ring set inside the support column, and a counterweight set elastically on the first mounting ring and the second mounting ring, when the support column is shaken by external force, the elastically set counterweight reduces the shaking amplitude of the support column itself, thereby improving the stability of the support column.

[0026] 2. By setting multiple sets of traction springs connected to the counterweight on the first mounting ring and multiple sets of traction springs connected to the counterweight on the second mounting ring, an elastic restoring force in the opposite direction can be provided when the support is shaken in any direction, thereby reducing the sway amplitude of the support itself and improving the accuracy of the support and GNSS displacement measurement equipment when in use.

[0027] 3. By rotating the fixed plate, rotating the adjusting ring on the fixed plate, raising and lowering the adjusting screw on the mounting plate, and raising and lowering the clamping plate on the adjusting screw, when the technician needs to adjust the angle of the GNSS displacement measuring equipment, the technician rotates the adjusting ring to separate or clamp the clamping plate on the adjusting screw from the mounting plate, thereby facilitating the adjustment or fixing of the angle of the GNSS displacement measuring equipment. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0029] Figure 2 This is a schematic diagram of the connection structure of the mounting plate, fixing plate, and pad.

[0030] Figure 3 This is a schematic diagram of the connection structure of the shock absorption components.

[0031] Reference numerals: 1. Support column; 11. Ear plate; 12. Anchor bolt; 13. Mounting plate; 2. GNSS displacement measuring equipment; 21. Photovoltaic module; 3. Vibration damping component; 31. First mounting ring; 32. Second mounting ring; 33. Counterweight; 34. Traction spring; 4. Mounting component; 41. Fixing plate; 42. Pad; 43. Rotating component; 431. Adjusting ring; 432. Adjusting screw; 433. Clamping plate; 44. Limiting structure; 441. Limiting block; 442. Limiting groove; 5. Lever; 51. Receiving groove; 52. Sealing block. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0033] This application discloses a GNSS displacement measurement base device. (Refer to...) Figure 1 , Figure 2 and Figure 3A GNSS displacement measurement base device includes a vertical support column 1 fixed to the ground. The diameter of the top end of the support column 1 is smaller than that of the bottom end. A mounting plate 13 for mounting a GNSS displacement measurement device 2 is fixedly welded to the top end of the support column 1. A photovoltaic module 21 is fixedly installed on the side wall of the support column 1. The photovoltaic module 21 is electrically connected to the GNSS displacement measurement device 2. An ear plate 11 is fixed to the bottom of the support column 1. A fixing hole is opened on the ear plate 11. An anchor screw 12 is inserted through the fixing hole. The support column 1 is fixed to the ground by the anchor screw 12. The support column 1 also has a shock-absorbing component 3 to reduce the shaking of the support column 1 itself and an installation component 4 for stabilizing the installation of the GNSS displacement measurement device 2.

[0034] Reference Figure 1 and Figure 3 The support column 1 is hollow. The shock absorption assembly 3 includes a first mounting ring 31 and a second mounting ring 32 disposed inside the support column 1. The first mounting ring 31 and the second mounting ring 32 are coaxially fixed, and the first mounting ring 31 is located on the top side of the second mounting ring 32. The diameter of the first mounting ring 31 is smaller than the diameter of the second mounting ring 32. The outer peripheral walls of the first mounting ring 31 and the second mounting ring 32 are in contact with the inner peripheral wall of the support column 1. A counterweight 33 is elastically disposed between the first mounting ring 31 and the second mounting ring 32. The first mounting ring 31 is provided with multiple sets of traction springs 34, which are spaced apart along the circumference of the first mounting ring 31. The second mounting ring 32 is provided with multiple sets of traction springs 34, which are spaced apart along the circumference of the second mounting ring 32. The multiple sets of traction springs 34 on the first mounting ring 31 correspond one-to-one with the multiple sets of traction springs 34 on the second mounting ring 32.

[0035] Because the rotation angle of the GNSS needs to be adjusted according to the on-site working conditions to achieve the most suitable detection angle and monitoring position, and conventional GNSS displacement measurement equipment is bolted to the bracket, the rotation angle needs to be accurately calculated before installation, which is inconvenient for later adjustment. To solve this problem, refer to Figure 2 and Figure 3 The mounting component 4 includes a fixing plate 41 located at the top of the mounting plate 13. The measuring device body is fixed on the fixing plate 41. A pad 42 is fixedly connected between the fixing plate 41 and the mounting plate 13. The pad 42 is a rubber pad. The fixing plate 41 is rotatably mounted on the mounting plate 13. The rotation axis of the fixing plate 41 is consistent with the height direction of the support column 1. The mounting plate 13 is also provided with a rotating component 43 for adjusting the rotation angle of the fixing plate 41.

[0036] The rotating component 43 includes an adjusting ring 431 rotatably mounted on a fixed plate 41. An adjusting screw 432 is slidably mounted on the fixed plate 41. The adjusting screw 432 slidably passes through the mounting plate 13 and is threadedly adapted to the adjusting ring 431. The mounting block is also provided with a limiting structure 44 to restrict the rotation of the adjusting screw 432. One end of the adjusting screw 432 that passes through the mounting plate 13 is fixedly connected to a pressing plate 433. The pressing plate 433 is movably pressed against the side of the mounting plate 13 away from the fixed plate 41. One end of the adjusting screw 432 located inside the support column 1 is fixedly connected to the first mounting ring 31.

[0037] The limiting structure 44 includes a limiting groove 442 opened on the outer peripheral wall of the adjusting screw 432 and a limiting block 441 fixed on the mounting plate 13. The limiting groove 442 is opened along the length direction of the adjusting screw 432, and the limiting block 441 is slidably adapted to the limiting groove 442.

[0038] Connecting the adjusting screw 432 to the first mounting ring 31 enhances the stability of the installation between the fixed plate 41 and the mounting block under the action of the counterweight 33 when the GNSS displacement measuring device 2 is in use, thereby improving the accuracy of the GNSS displacement measuring device 2. At the same time, when the adjusting screw 432 is raised by rotating the adjusting ring 431, the fixed plate 41 is pressed down under the action of the counterweight 33. When the adjusting screw 432 rises to the point where the clamping block and the mounting plate 13 are pressed together, the first mounting ring 31 and the second mounting ring 32 move to the position where they are pressed against the inner wall of the support column 1, so that the counterweight 33, the first mounting ring 31, and the second mounting ring 32 are also installed stably inside the support column 1.

[0039] Since the support column 1 is often made of steel structure in one piece, it is inconvenient to fix the first mounting ring 31, the second mounting ring 32 and the counterweight 33. By fixing the adjusting screw 432 to the first mounting ring 31, the fixed plate 41 and the mounting plate 13 are installed stably at the same time, and the first mounting ring 31 and the second mounting ring 32 are installed stably. The first mounting ring 31, the second mounting ring 32 and the counterweight 33 improve the stability of the fixed plate 41 installation.

[0040] Meanwhile, to facilitate the rotational adjustment of the fixing plate 41, a lever 5 is rotatably mounted on the fixing plate 41. The rotation axis of the lever 5 is horizontal, and one end of the lever 5 protrudes movably from the fixing plate 41. A receiving groove 51 is provided on the fixing plate 41, and the lever 5 is movably positioned within the receiving groove 51. A sealing block 52 is elastically slidably disposed within the receiving groove 51. The top side of the sealing block 52 is inclined, and the inclined side of the sealing block 52 is in close contact with and abuts against the lever 5. After the rotational adjustment of the fixing plate 41 is completed, the technician rotates the lever 5 to make it slide against the sealing block 52, thus placing it within the receiving groove 51. Under the action of the sealing block 52, the lever 5 is less likely to detach from the receiving groove 51, thereby reducing accidental contact during installation and maintenance.

[0041] The implementation principle of a GNSS displacement measurement foundation device according to an embodiment of this application is as follows: Before installation, the support column 1 is first laid down. At this time, the technician inserts the first mounting ring 31 and the second mounting ring 32 from the opening at the bottom of the support column 1 until the adjusting screw 432 penetrates the mounting plate 13. When the technician installs the fixing plate 41 on the mounting plate 13, the adjusting screw 432 is also laid through the fixing plate 41. At this time, the technician rotates the adjusting ring 431 to make the adjusting ring 431 and the adjusting screw 432 threadedly matched, thereby achieving the pre-fixation of the first mounting ring 31 and the second mounting ring 32.

[0042] Next, the technicians adjusted the support column 1 to be vertical and fixed it to the ground with the anchor screws 12. At this time, the technicians rotated the adjusting ring 431 until the clamping plate 433 was pressed against the mounting plate 13. At the same time, the first mounting ring 31 and the second mounting ring 32 were pressed against the inner wall of the support column 1, so as to achieve stable installation of the entire GNSS displacement measuring equipment 2.

[0043] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A GNSS displacement measurement base apparatus, characterized by: The device includes a vertical support column (1) fixed to the ground and an installation plate (13) at the top of the support column (1). The device body is installed on the installation plate (13), and a photovoltaic module (21) is fixedly connected to the side wall of the support column (1). The photovoltaic module (21) is electrically connected to the device body. The bottom diameter of the support column (1) is larger than the top diameter. The support column (1) is hollow. The support column (1) is provided with a shock-absorbing component (3) to dampen the vibration of the support column (1). The installation plate (13) is provided with an installation component (4) for the device body to be installed. The shock absorption assembly (3) includes a first mounting ring (31) and a second mounting ring (32) slidably disposed within the support column (1). The first mounting ring (31) and the second mounting ring (32) are coaxially fixed and arranged opposite to each other. The first mounting ring (31) is located above the second mounting ring (32), and the outer peripheral walls of the first mounting ring (31) and the second mounting ring (32) are in contact with the inner peripheral wall of the support column (1). A counterweight (33) is elastically disposed between the first mounting ring (31) and the second mounting ring (32).

2. A GNSS displacement measurement base apparatus according to claim 1, characterised in that: Both the first mounting ring (31) and the second mounting ring (32) are provided with multiple sets of traction springs. One end of the traction spring on the first mounting ring (31) is connected to the first mounting ring (31), and the other end is connected to the counterweight (33). One end of the traction spring on the second mounting ring (32) is connected to the second mounting ring (32). The multiple sets of traction springs on the first mounting ring (31) are arranged at intervals along the circumference of the first mounting ring (31), and the multiple sets of traction springs on the second mounting ring (32) are arranged at intervals along the circumference of the second mounting ring (32).

3. A GNSS displacement measurement base apparatus according to claim 2, characterised in that: The mounting component (4) includes a fixing plate (41) located at the top of the mounting plate (13). The measuring device body is fixed on the fixing plate (41). A pad (42) is fixedly connected between the fixing plate (41) and the mounting plate (13). The pad (42) is a rubber pad. The fixing plate (41) is rotatably mounted on the mounting plate (13). The mounting plate (13) is also provided with a rotating component (43) for adjusting the rotation angle of the fixing plate (41).

4. A GNSS displacement measurement base apparatus according to claim 3, characterised in that: The rotating component (43) includes an adjusting ring (431) rotatably mounted on the fixed plate (41). An adjusting screw (432) is slidably mounted on the fixed plate (41). The adjusting screw (432) slidably passes through the mounting plate (13) and is threadedly adapted to the adjusting ring (431). The mounting block is also provided with a limiting structure (44) to restrict the rotation of the adjusting screw (432). A clamping plate (433) is fixedly connected to one end of the adjusting screw (432) that passes through the mounting plate (13). The clamping plate (433) is movably clamped to the side of the mounting plate (13) away from the fixed plate (41).

5. A GNSS displacement measurement base apparatus according to claim 4, characterised in that: The adjusting screw (432) is located at one end inside the support (1) and is connected to the first mounting ring (31).

6. A GNSS displacement measurement base apparatus according to claim 5, characterised in that: The limiting structure (44) includes a limiting groove (442) opened on the outer peripheral wall of the adjusting screw (432) and a limiting block (441) fixed on the mounting plate (13), wherein the limiting block (441) is slidably adapted to the limiting groove (442).

7. A GNSS displacement measurement base apparatus according to claim 6, characterised in that: A lever (5) is rotatably mounted on the fixed plate (41). The lever (5) is movably protruding from the fixed plate (41), and a receiving groove (51) is provided on the fixed plate (41). The lever (5) is movably located in the receiving groove (51).

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