A stable auxiliary device based on RTK special surface measurement

Abstract

The utility model discloses a kind of stable auxiliary devices based on RTK special surface measurement, it is related to RTK topographic survey technical field, the device includes mounting seat, the bottom end of the mounting seat is uniformly fixedly connected with connecting block, the inside of the connecting block is provided with limiting mechanism, the bottom end of the mounting seat is fixedly connected with fixed cylinder, the inner wall of the fixed cylinder is rotatably connected with universal ball, the bottom end of the universal ball is fixedly connected with connecting cylinder, the outer wall of the connecting cylinder is provided with fixed mechanism, the limiting mechanism includes rotating rod, the inner wall of the rotating rod and connecting block is rotatably connected, the outer wall of the rotating rod is fixedly connected with fixed rod, the utility model is cooperated between fixed rod, sleeve, first locking screw, support block and limiting mechanism, reaches the effect of stable support on different ground.

Description

Technical Field

[0001] This utility model relates to the field of RTK topographic surveying technology, specifically a stabilizing auxiliary device based on RTK special surface surveying. Background Technology

[0002] Real-time dynamic carrier phase differential (RTK) technology is a high-precision positioning technology based on the Global Navigation Satellite System (GNSS). It achieves centimeter-level real-time positioning through carrier phase differential observation between a base station and a rover. It has wide applications in topographic surveying. However, on certain special surfaces (sand, mud, desert, etc.), due to the weight of the RTK measuring rod and the instrument itself, a sinking phenomenon may occur, leading to measurement errors.

[0003] For example, the patent with authorization announcement number CN217875104U describes a stabilization auxiliary device based on RTK special surface measurement, which includes a support plate, a universal bearing and a measuring rod fixing device. The universal bearing enables arbitrary rotation of the measuring rod; and it can correct systematic errors caused by non-horizontal ground by a slope measuring instrument. However, it is supported by a support plate, which makes it difficult to maintain stability on slopes, uneven or soft ground, reducing the practicality of the device.

[0004] Based on this, a stabilization auxiliary device based on RTK special surface measurement is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a stable auxiliary device based on RTK special surface measurement to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A stabilization auxiliary device based on RTK special surface measurement includes a mounting base, with connecting blocks uniformly fixedly connected to the bottom end of the mounting base. A limit mechanism is provided inside the connecting blocks. A fixing cylinder is fixedly connected to the bottom end of the mounting base. Universal ball bearings are rotatably connected to the inner wall of the fixing cylinder. The bottom end of the universal ball bearings is fixedly connected to the connecting cylinder. A fixing mechanism is provided on the outer wall of the connecting cylinder.

[0008] The limiting mechanism includes a rotating rod, which is rotatably connected to the inner wall of the connecting block. A fixing rod is fixedly connected to the outer wall of the rotating rod, and a sleeve is fitted onto the outer wall of the fixing rod. A first locking screw is threaded into a threaded hole on the sleeve. A support block is fixedly connected to the bottom end of the sleeve. A sliding groove is provided inside the rotating rod, and a sliding rod is slidably fitted inside the groove. A pull plate is fixedly connected to one end of the sliding rod, and a spring is fixedly connected to the other end. The spring is fixedly connected to the inner wall of the sliding groove.

[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0010] Preferably, the inner wall of the fixed cylinder is threaded with a second locking screw for locking the universal ball bearings.

[0011] Preferably, the slide bar has a T-shaped structure composed of a cylinder and a rectangular block, and the sliding groove inside the slide bar is adapted to the rectangular block.

[0012] Preferably, a friction pad is fixedly connected to the side wall of the pull plate, and the friction pad is inserted into an annular groove opened on the connecting block.

[0013] Preferably, the universal ball bearing has a through hole communicating with the connecting cylinder, a measuring rod is provided in the through hole, and the bottom end of the measuring rod extends to the outside of the connecting cylinder. An RTK measuring instrument is fixedly connected to the top end of the measuring rod.

[0014] Preferably, the fixing mechanism includes a fixing frame, which is fixed to the outer wall of the connecting cylinder. A bidirectional lead screw is rotatably connected to the inner wall of the fixing frame. A first slider is symmetrically driven to the outer wall of the bidirectional lead screw. The first slider is slidably connected to a groove opened inside the fixing frame. A connecting rod is fixedly connected to one side of the first slider. A second slider is fixedly connected to one end of the connecting rod. The second slider is slidably connected to a guide groove opened inside the fixing frame.

[0015] Preferably, a clamping block is fixedly connected to the side wall of the second slider, and the clamping block passes through a through hole in the connecting cylinder and fits against the outer wall of the measuring rod.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model achieves stable support on different ground surfaces through the coordinated operation of the fixing rod, sleeve, first locking screw, support block and limiting mechanism.

[0018] 2. This utility model can achieve multi-angle fine adjustment of the measuring rod and RTK measuring instrument through the coordinated cooperation of the universal ball bearing and the second locking screw. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0021] Figure 3 This is a schematic diagram of the limiting mechanism of this utility model.

[0022] Figure 4 This is a schematic diagram of the fixing mechanism of this utility model.

[0023] Figure reference numerals: 1. Mounting base; 11. Connecting block; 12. Fixing cylinder; 13. Fixing rod; 14. Sleeve; 15. First locking screw; 16. Support block; 17. Universal ball bearing; 18. Second locking screw; 19. Connecting cylinder; 2. Limiting mechanism; 21. Rotating rod; 22. Sliding rod; 23. Pull plate; 24. Friction pad; 25. Spring; 3. Fixing mechanism; 31. Fixing frame; 32. Bidirectional lead screw; 33. First slider; 34. Connecting rod; 35. Second slider; 36. Clamping block; 4. Measuring rod; 41. RTK measuring instrument. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] In one embodiment, such as Figures 1-4 As shown, a stabilization auxiliary device based on RTK special surface measurement includes a mounting base 1, a connecting block 11 uniformly fixedly connected to the bottom end of the mounting base 1, a limit mechanism 2 provided inside the connecting block 11, a fixing cylinder 12 fixedly connected to the bottom end of the mounting base 1, a universal ball bearing 17 rotatably connected to the inner wall of the fixing cylinder 12, a connecting cylinder 19 fixedly connected to the bottom end of the universal ball bearing 17, and a fixing mechanism 3 provided on the outer wall of the connecting cylinder 19.

[0026] The limiting mechanism 2 includes a rotating rod 21, which is rotatably connected to the inner wall of the connecting block 11. A fixing rod 13 is fixedly connected to the outer wall of the rotating rod 21. A sleeve 14 is sleeved on the outer wall of the fixing rod 13. A first locking screw 15 is threaded into a threaded hole on the sleeve 14. A support block 16 is fixedly connected to the bottom end of the sleeve 14. A sliding groove is opened inside the rotating rod 21. A sliding rod 22 is slidably fitted inside the sliding groove. A pull plate 23 is fixedly connected to one end of the sliding rod 22, and a spring 25 is fixedly connected to the other end. The spring 25 is fixedly connected to the inner wall of the sliding groove.

[0027] In this embodiment, the measuring rod 4 and the RTK measuring instrument 41 can be fixed by the fixing mechanism 3. Then, the fixing rod 13 and the sleeve 14 are adjusted according to the flatness of the ground. After the adjustment is completed, the angle of the fixing rod 13 is locked by the limiting mechanism 2. Then, the multi-angle fine adjustment within the range of ±15° can be completed by the universal ball bearing 17 and the second locking screw 18.

[0028] In an optional embodiment, such as Figure 4As shown, the inner wall of the fixed cylinder 12 is threaded with a second locking screw 18 for locking the universal ball 17. The universal ball 17 has a through hole communicating with the connecting cylinder 19, and the bottom end of the measuring rod 4 extends to the outside of the connecting cylinder. The measuring rod 4 is installed in the through hole, and the top end of the measuring rod 4 is fixedly connected to the RTK measuring instrument 41. By releasing the second locking screw 18 from locking the universal ball 17, and then by directly rotating the measuring rod 4, multi-angle fine adjustment within the range of ±15° can be performed. After the adjustment is completed, the universal ball 17 can be locked again by the second locking screw 18.

[0029] In an optional embodiment, such as Figure 3 As shown, the slide bar 22 has a T-shaped structure composed of a cylinder and a rectangular block, and the groove inside the rotating rod 21 is adapted to the rectangular block. Thus, when the fixed rod 13 drives the rotating rod 21 to rotate, the rotating rod 21 can drive the slide bar 22 to rotate synchronously under the action of torque, thereby driving the pull plate 23 and the friction pad 24 to rotate.

[0030] In an optional embodiment, such as Figure 3 As shown, a friction pad 24 is fixedly connected to the side wall of the pull plate 23. The friction pad 24 is inserted into the annular groove opened on the connecting block 11. By inserting the friction pad 24 into the annular groove, the friction force restricts the rotation of the pull plate 23 and the slide rod 22, thereby locking the angle between the rotating rod 21 and the fixed rod 13 to prevent them from rotating.

[0031] In an optional embodiment, such as Figure 4 As shown, the fixing mechanism 3 includes a fixing frame 31, which is fixed to the outer wall of the connecting cylinder 19. A bidirectional lead screw 32 is rotatably connected to the inner wall of the fixing frame 31. A first slider 33 is symmetrically connected to the outer wall of the bidirectional lead screw 32. The first slider 33 is slidably connected to a groove opened inside the fixing frame 31. A connecting rod 34 is fixedly connected to one side of the first slider 33. A second slider 35 is fixedly connected to one end of the connecting rod 34. The second slider 35 is slidably connected to a guide groove opened inside the fixing frame 31. A clamping block 36 is fixedly connected to the side wall of the second slider 35. The clamping block 36 passes through a through hole opened on the connecting cylinder 19 and fits against the outer wall of the measuring rod 4. By rotating the bidirectional lead screw 32, the first slider 33 symmetrically arranged on the bidirectional lead screw 32 moves axially, driving the connecting rod 34 and the second slider 35 to move synchronously. The second slider 35 drives the clamping block 36 to move synchronously, so that the clamping block 36 clamps and fixes the measuring rod 4.

[0032] The above embodiment discloses a stabilizing auxiliary device based on RTK special surface measurement. When supporting the measuring rod 4, the RTK measuring instrument 41 passes through the universal ball bearing 17 and enters the connecting cylinder 19. Then, by rotating the bidirectional lead screw 32, the first slider 33 symmetrically arranged on the bidirectional lead screw 32 moves axially, driving the connecting rod 34 and the second slider 35 to move synchronously. The second slider 35 drives the clamping block 36 to move synchronously, clamping and fixing the measuring rod 4. After fixing, according to the required flatness of the ground to be measured, the tilt angle of the fixing rod 13 and the extension length of the sleeve 14 are adjusted. By pulling the pull plate 23, the sliding rod 22 moves synchronously, stretching the spring 25 and pulling the friction pad 24 out of the annular groove. Then, the fixing rod 13 can be rotated to adjust its tilt angle. After adjustment, the pull plate 23 is released. Under the action of the spring 25, the pull plate 23 drives the friction pad 24 to retract, and the friction pad 24 re-engages with the annular groove. Under the action of groove friction, the current state of the fixed rod 13 is locked to prevent it from rotating. Then, by releasing the lock of the sleeve 14 by the first locking screw 15, the sleeve 14 can be stretched, thereby causing the sleeve 14 to drive the support block 16 to move synchronously, so that the support block 16 contacts the ground. Then, the sleeve 14 can be locked again. After the adjustment, if there is a slight deviation, the lock of the universal ball 17 by the second locking screw 18 can be released. Then, by directly rotating the measuring rod 4, multi-angle fine adjustment within the range of ±15° can be performed. After the adjustment, the universal ball 17 can be locked again by the second locking screw 18. In summary, the measuring rod 4 and the RTK measuring instrument 41 can be fixed by the fixing mechanism 3. Then, the fixed rod 13 and the sleeve 14 can be adjusted according to the flatness of the ground. After the adjustment, the angle of the fixed rod 13 is locked by the limiting mechanism 2. Then, multi-angle fine adjustment within the range of ±15° can be completed by the universal ball 17 in conjunction with the second locking screw 18.

[0033] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A stabilization auxiliary device based on RTK special surface measurement, comprising a mounting base (1), wherein connecting blocks (11) are uniformly fixedly connected to the bottom end of the mounting base (1), characterized in that, The connecting block (11) is provided with a limiting mechanism (2) inside. The bottom end of the mounting base (1) is fixedly connected to a fixing cylinder (12). The inner wall of the fixing cylinder (12) is rotatably connected to a universal ball (17). The bottom end of the universal ball (17) is fixedly connected to a connecting cylinder (19). The outer wall of the connecting cylinder (19) is provided with a fixing mechanism (3). The limiting mechanism (2) includes a rotating rod (21), which is rotatably connected to the inner wall of the connecting block (11). A fixing rod (13) is fixedly connected to the outer wall of the rotating rod (21). A sleeve (14) is sleeved on the outer wall of the fixing rod (13). A first locking screw (15) is threaded into the threaded hole on the sleeve (14). A support block (16) is fixedly connected to the bottom end of the sleeve (14). A sliding groove is provided inside the rotating rod (21). A sliding rod (22) is slidably fitted inside the sliding groove. A pull plate (23) is fixedly connected to one end of the sliding rod (22), and a spring (25) is fixedly connected to the other end. The spring (25) is fixedly connected to the inner wall of the sliding groove.

2. The stabilization auxiliary device based on RTK special surface measurement according to claim 1, characterized in that, The inner wall of the fixed cylinder (12) is threaded with a second locking screw (18) for locking the universal ball (17).

3. The stabilization auxiliary device based on RTK special surface measurement according to claim 1, characterized in that, The slide bar (22) has a T-shaped structure composed of a cylinder and a rectangular block, and the groove inside the rotating rod (21) is adapted to the rectangular block.

4. The stabilization auxiliary device based on RTK special surface measurement according to claim 1, characterized in that, The side wall of the pull plate (23) is fixedly connected to a friction pad (24), and the friction pad (24) is inserted into an annular groove opened on the connecting block (11).

5. A stabilization auxiliary device based on RTK special surface measurement according to claim 1, characterized in that, The universal ball bearing (17) has a through hole that communicates with the connecting cylinder (19). A measuring rod (4) is installed in the through hole, and the bottom end of the measuring rod (4) extends to the outside of the connecting cylinder. An RTK measuring instrument (41) is fixedly connected to the top end of the measuring rod (4).

6. A stabilization auxiliary device based on RTK special surface measurement according to claim 1, characterized in that, The fixing mechanism (3) includes a fixing frame (31), which is fixed to the outer wall of the connecting cylinder (19). The inner wall of the fixing frame (31) is rotatably connected to a two-way lead screw (32). The outer wall of the two-way lead screw (32) is symmetrically connected to a first slider (33). The first slider (33) is slidably connected to a groove opened inside the fixing frame (31). A connecting rod (34) is fixedly connected to one side of the first slider (33). A second slider (35) is fixedly connected to one end of the connecting rod (34). The second slider (35) is slidably connected to a guide groove opened inside the fixing frame (31).

7. A stabilization auxiliary device based on RTK special surface measurement according to claim 6, characterized in that, The second slider (35) is fixedly connected to a clamping block (36) on its side wall. The clamping block (36) passes through a through hole in the connecting cylinder (19) and fits against the outer wall of the measuring rod (4).

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