Auxiliary centering device for track prism surveying

Abstract

The utility model belongs to track mapping technical field, especially related to a kind of auxiliary centering device for track prism mapping, aiming at the low efficiency of prism centering of existing device manual adjustment, it is not accurate to position due to operation error, and lack effective locking positioning mechanism, it is easy to displace in mapping, reduce the problem of accuracy, present the following scheme, auxiliary centering device, including track ontology, the surface of track ontology is provided with lifting plate;The utility model has the beneficial effects that: by to the spring of centering, when the centering plate is moved up, the centering push rod falls into the lowest point of V-shaped groove accurate limit, cooperate pointer and centering scale, operator can be adjusted by adjusting screw fine tuning, make pointer point 0, limit prism in track width centerline, greatly reduce manual error, provide high-precision reference for total station survey.

Description

Technical Field

[0001] This utility model relates to an auxiliary centering device, specifically an auxiliary centering device for track prism mapping, belonging to the field of track mapping technology. Background Technology

[0002] With the rapid development of my country's railway transportation industry, railway transportation plays an increasingly important role in people's lives. As a result, the requirements for railway lines during train operation are also constantly increasing. During the construction and maintenance of railway tracks, it is necessary to accurately measure the geometric parameters of the tracks. Among them, the positioning of the track centerline is a key link in the surveying work. The method for positioning the track centerline is to use a prism in conjunction with a total station for measurement.

[0003] In the prior art, such as the prism device for surveying disclosed in announcement number CN211012971U, the rotation angle of the reflecting prism is precisely controlled by a micro motor, which has the advantage of solving the problems of inconvenient measurement and inaccurate measurement data caused by the difficulty in adjusting the angle of the existing prism. However, the above-mentioned prior art has the following shortcomings: When using the above-mentioned prism device for surveying, the centering and positioning of the prism mainly relies on manual adjustment. The centerline of the track needs to be manually positioned and the device placed at the centerline position. This is not only inefficient, but also prone to insufficient positioning accuracy due to human operation errors, affecting the accuracy of the surveying results. In addition, it lacks an effective locking and positioning mechanism, which makes it easy for displacement to occur during the surveying process, further reducing the measurement accuracy. Summary of the Invention

[0004] The purpose of this invention is to provide an auxiliary centering device for track prism surveying, which addresses the problems of low efficiency in manually adjusting the prism centering of the above-mentioned devices, inaccurate positioning due to operational errors, lack of an effective locking and positioning mechanism, easy displacement during surveying, and reduced accuracy.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: an auxiliary centering device for track prism surveying, comprising a track body; a lifting plate is provided on the surface of the track body, fixed sliding rods are symmetrically installed on the surface of the lifting plate, and an adjusting mounting plate is slidably connected to the surfaces of the two sets of fixed sliding rods; an adjusting groove is provided on the surface of the adjusting mounting plate, and a connecting rod is slidably connected in the adjusting groove; one end of the connecting rod is fixedly installed on the bottom surface of the adjusting mounting plate, and a prism mounting frame is fixedly installed on the other end of the connecting rod; a prism for measuring with a total station is installed in the prism mounting frame.

[0006] Two sets of fixed slide rods are symmetrically fitted with centering springs on their outer surfaces. The two centering springs on the same fixed slide rod surface apply pressure to the adjusting mounting plate, causing the adjusting mounting plate to be in the center position of the fixed slide rod.

[0007] As a further embodiment of this utility model: a base plate is provided between the track body and the lifting plate, and hydraulic rods are installed on both ends of the base plate. The piston ends of the two hydraulic rods are connected to the lifting plate. A center plate is provided at the center line of the base plate, and a V-groove is opened on the surface of the center plate. A centering push rod is fixedly installed on the surface of the adjustment mounting plate.

[0008] As a further improvement of this utility model: when the center plate moves up, the centering push rod is located at the lowest point of the V-groove on the surface of the center plate, which is used to center and position the prism between the two tracks.

[0009] As a further embodiment of this utility model: fixed plates are symmetrically mounted on the surface of the substrate, and an adjusting screw is rotatably connected between the two fixed plates. An adjusting handle is fixedly connected to one end of the adjusting screw that passes through one of the fixed plates. A connecting rod is threaded onto the surface of the adjusting screw, and the connecting rod is fixedly installed on the bottom surface of the split plate.

[0010] As a further improvement of this utility model: a pointer is fixedly installed at the bottom center of the prism mounting frame, and a centering scale for centering adjustment and comparison is installed at the center of the surface of the substrate.

[0011] As a further improvement of this utility model: a guide rod is slidably connected in the through hole opened on the surface of the connecting rod, and both ends of the guide rod are connected to two fixed plates.

[0012] As a further embodiment of this utility model: two fixed seats are symmetrically installed on the bottom surface of the substrate, and a T-shaped guide rod is slidably connected inside the fixed seat. The T-shaped guide rod passes through the fixed seat and the bottom of the substrate in sequence and is fixedly installed on the bottom surface of the lifting plate.

[0013] As a further improvement of this utility model: a positioning clamp adapted to the top surface of the track is fixedly installed at the bottom of the fixed base, and a rubber anti-slip pad is provided at the contact point between the positioning clamp and the track body.

[0014] The beneficial effects of this utility model are:

[0015] This invention ensures precise centering of the prism through multiple structures. The centering spring causes the adjusting mounting plate to be in the center of the fixed slide rod, achieving initial centering. When the centering plate moves up, the centering push rod falls into the lowest point of the V-groove. Utilizing the unique and fixed lowest point characteristic of the V-groove, the position of the prism is precisely limited. With the real-time comparison between the pointer and the centering scale, the operator can fine-tune the centering plate by adjusting the screw, so that the pointer points to the 0 point of the scale, strictly limiting the prism to the center line of the two track widths, greatly reducing manual positioning errors and providing a high-precision benchmark for total station measurements.

[0016] The hydraulic rod drives the lifting plate to rise and fall, realizing the automatic coordination between the centering plate and the centering push rod, replacing manual positioning, reducing labor intensity. The combination of the adjusting screw and handle, combined with the guide rod, makes the lateral fine adjustment of the centering plate easy and precise. With the intuitive feedback of the pointer and scale, the operator can quickly judge and adjust the prism position without complicated tools and rich experience, significantly improving the centering adjustment efficiency and adapting to surveying scenarios with frequent adjustments.

[0017] The positioning clamp and rubber anti-slip pad fit tightly against the track to prevent the device from sliding. The T-shaped guide rod cooperates with the fixed seat to ensure that the lifting plate moves vertically and smoothly. The guide rod constrains the linear movement of the connecting rods to prevent the center plate from shifting. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the dividing plate, guide rod, and connecting rod in this utility model;

[0020] Figure 3 This is a schematic diagram of the adjusting screw, connecting rod, and V-groove structure in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the T-shaped rod, the fixed seat, and the positioning clamp in this utility model;

[0022] Figure 5 This is a schematic diagram of the centering spring, centering push rod, and fixing slide rod in this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the fixed sliding rod, the centering push rod, and the centering plate in this utility model.

[0024] In the diagram: 1. Track body; 2. Base plate; 3. Center plate; 4. V-groove; 5. Adjustment mounting plate; 6. Connecting rod; 7. Prism mounting frame; 8. Prism; 9. Pointer; 10. Fixed slide rod; 11. Adjustment groove; 12. Centering spring; 13. Centering push rod; 14. Hydraulic rod; 15. Lifting plate; 16. Centering scale; 17. Fixed plate; 18. Guide rod; 19. Connecting rod; 20. Adjusting screw; 21. Fixed seat; 22. Positioning clamp; 23. T-shaped guide rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] like Figures 1 to 6 As shown, an auxiliary centering device for track prism surveying includes a track body 1; a lifting plate 15 is provided on the surface of the track body 1, and fixed slide rods 10 are symmetrically installed on the surface of the lifting plate 15. Adjustment mounting plates 5 are slidably connected to the surfaces of the two sets of fixed slide rods 10. Adjustment grooves 11 are opened on the surface of the adjustment mounting plates 5, and connecting rods 6 are slidably connected in the adjustment grooves 11. One end of the connecting rod 6 is fixedly installed on the bottom surface of the adjustment mounting plate 5, and a prism mounting frame 7 is fixedly installed on the other end of the connecting rod 6. A prism 8 for measuring with a total station is installed in the prism mounting frame 7.

[0028] Two sets of fixed slide rods 10 are symmetrically fitted with centering springs 12 on their outer surfaces. The two centering springs 12 on the same fixed slide rod 10 surface apply pressure to the adjusting mounting plate 5, causing the adjusting mounting plate 5 to be in the center position of the fixed slide rod 10.

[0029] The centering springs 12 symmetrically fitted on the outer surfaces of the two sets of fixed sliding rods 10 in the device will apply pressure to the adjusting mounting plate 5, causing the adjusting mounting plate 5 to be stably positioned in the center of the fixed sliding rods 10. This design structurally ensures the centering tendency of the initial position of the prism 8, laying a good foundation for subsequent accurate mapping. The adjusting mounting plate 5 has an adjusting groove 11 on its surface, in which the connecting rod 6 can slide, which allows the prism mounting frame 7 and the prism 8 inside to be finely adjusted in position.

[0030] Furthermore, a base plate 2 is provided between the track body 1 and the lifting plate 15. Hydraulic rods 14 are installed on both ends of the base plate 2. The piston ends of the two hydraulic rods 14 are connected to the lifting plate 15. A centering plate 3 is provided at the center line of the surface of the base plate 2. A V-groove 4 is opened on the surface of the centering plate 3. A centering push rod 13 is fixedly installed on the surface of the adjusting mounting plate 5.

[0031] The piston end extends and retracts, causing the lifting plate 15 to move up and down, thereby controlling the engagement state between the centering plate 3 and the centering push rod 13. When the centering plate 3 moves upward, the centering push rod 13 on the surface of the mounting plate 5 will fall into the lowest point of the V-groove 4 of the centering plate 3. The special structure of the V-groove 4 has a good guiding and positioning function, which can accurately limit the position of the centering push rod 13, thereby more accurately achieving the centering positioning of the prism 8 in the width direction between the two tracks, reducing the errors that may be caused by manual positioning, and making the measurement benchmark more reliable.

[0032] Furthermore, when the center plate 3 moves upward, the centering push rod 13 is located at the lowest point of the V-groove 4 on the surface of the center plate 3, which is used to center and position the prism 8 between the two tracks.

[0033] The structural characteristics of the V-groove 4 determine that its lowest point is a unique and fixed position. When the centering push rod 13 falls into this lowest point, it can be precisely limited, avoiding ambiguity and uncertainty in the positioning process. It can strictly limit the prism 8 to the center line of the two track width directions, greatly reducing the deviation that may be caused by manual judgment or other positioning methods, improving the efficiency of surveying and mapping work and the reliability of data, and providing a highly accurate benchmark for subsequent total station measurements.

[0034] Furthermore, fixing plates 17 are symmetrically mounted on the surface of the substrate 2, and an adjusting screw 20 is rotatably connected between the two fixing plates 17. An adjusting handle is fixedly connected to one end of the adjusting screw 20 that passes through one of the fixing plates 17. A connecting rod 19 is threadedly connected to the surface of the adjusting screw 20, and the connecting rod 19 is fixedly installed on the bottom surface of the dividing plate 3.

[0035] By rotating the adjustment handle, the adjustment screw 20 can be rotated. Since the connecting rod 19 is threadedly connected to the adjustment screw 20 and the connecting rod 19 is fixed to the bottom surface of the center plate 3, the rotation of the adjustment screw 20 will be converted into the linear movement of the connecting rod 19, thereby driving the center plate 3 to adjust its lateral position. This enables the center plate 3 to be adjusted by a small distance, ensuring a more precise fit between the centering push rod 13 and the V-groove 4, and thus ensuring the accuracy of the centering and positioning of the prism 8.

[0036] Example 2

[0037] Improvements based on Example 1:

[0038] Furthermore, a pointer 9 is fixedly installed at the bottom center of the prism mounting frame 7, and a centering scale 16 for centering adjustment is installed at the center of the surface of the substrate 2.

[0039] The zero point of the centering scale 16 is located at the center, corresponding to the midpoint of the track width, while the pointer 9 is fixed at the bottom center of the prism mounting frame 7, directly reflecting the position of the prism 8. When the pointer 9 points to the zero point of the centering scale 16, the operator can intuitively judge that the prism 8 is in a precise centering position without relying on complex measuring tools or experience, greatly simplifying the process of confirming the centering status. During the adjustment of the position of the centering plate 3 by adjusting the lead screw 20, the cooperation between the pointer 9 and the centering scale 16 can provide real-time feedback on the adjustment effect. The operator can precisely control the rotation amplitude of the adjusting handle according to the distance and direction of the pointer 9's deviation from the zero point, realizing a fine adjustment of the prism 8's position, significantly improving the accuracy and efficiency of the centering adjustment.

[0040] Furthermore, a guide rod 18 is slidably connected in the through hole opened on the surface of the connecting rod 19, and both ends of the guide rod 18 are connected to two fixing plates 17.

[0041] The guide rod 18 provides strict guiding constraints for the movement of the connecting rod 19 through its sliding engagement with the connecting rod 19. When the adjusting screw 20 rotates and drives the connecting rod 19 to move, the guide rod 18 can effectively limit the rotation or offset of the connecting rod 19, ensuring that it always moves in a straight line. This ensures that the center plate 3 maintains a smooth straight-line movement during the lateral adjustment process. This precise guiding effect avoids the misalignment between the V-groove 4 and the centering push rod 13 caused by the offset of the center plate 3, providing a stable structural foundation for the centering positioning of the prism 8.

[0042] Furthermore, two fixed seats 21 are symmetrically installed on the bottom surface of the substrate 2. T-shaped guide rods 23 are slidably connected inside the fixed seats 21. The T-shaped guide rods 23 pass through the fixed seats 21 and the bottom of the substrate 2 and are fixedly installed on the bottom surface of the lifting plate 15.

[0043] The sliding engagement between the T-shaped guide rod 23 and the fixed base 21 provides precise guidance for the up-and-down movement of the lifting plate 15. When the hydraulic rod 14 drives the lifting plate 15 to rise or fall, the T-shaped guide rod 23 can effectively limit the lateral displacement or tilting of the lifting plate 15, ensuring that it always moves smoothly in the vertical direction.

[0044] Furthermore, a positioning clamp 22 adapted to the top surface of the track is fixedly installed at the bottom of the fixed base 21, and a rubber anti-slip pad is provided at the contact point between the positioning clamp 22 and the track body 1.

[0045] The shape of the positioning clamp 22 is adapted to the top surface of the track, and it can fit tightly against the track surface, providing a stable support foundation for the entire device from the bottom. This adaptability ensures that the device is installed in an accurate position on the track, avoiding the impact of the centering and positioning benchmark of the prism 8 due to misalignment, laying the foundation for the accuracy of subsequent surveying work. The anti-slip pad can effectively prevent the device from sliding or shifting on the track, ensuring that the device is always in the set measurement position and reducing measurement errors caused by device movement.

[0046] Working principle:

[0047] The base plate 2 is fastened to the surface of the track body 1 by the bottom fixing seat 21 and the positioning clamp 22. The rubber anti-slip pad on the inner side of the positioning clamp 22 increases the friction with the track, ensuring that the device fits the track stably and provides a solid foundation for subsequent adjustments.

[0048] The piston ends of the hydraulic rods 14 at both ends of the base plate 2 are connected to the lifting plate 15. When the piston ends of the hydraulic rods 14 retract, the lifting plate 15 is driven to move downward along the T-shaped guide rod 23. The T-shaped guide rod 23 also serves as a guide and limiter to ensure that the lifting plate 15 moves vertically and smoothly. During the downward movement of the lifting plate 15, centering springs 12 are symmetrically sleeved on the fixed slide rod 10 on the surface of the lifting plate 15. The two sets of centering springs 12 apply balanced elastic force to both sides of the adjusting mounting plate 5 respectively, and push the adjusting mounting plate 5 to the center position of the fixed slide rod 10 in the natural state to achieve preliminary lateral centering.

[0049] When a centering operation is required, the piston end of the hydraulic rod 14 is retracted. Since the piston end of the hydraulic rod 14 is connected to the lifting plate 15, the retraction of the piston end will cause the lifting plate 15 to move down. While the lifting plate 15 moves down, it moves smoothly through the sliding of the T-shaped guide rod 23 in the fixed seat 21, ensuring the stability of the lifting process.

[0050] As the lifting plate 15 moves down, the relative position between the base plate 2 and the lifting plate 15 changes, causing the centering plate 3 to move up. During the upward movement of the centering plate 3, the V-groove 4 on its surface gradually approaches the centering push rod 13 on the surface of the adjusting mounting plate 5, eventually causing the centering push rod 13 to fall into the lowest point of the V-groove 4. During this process, the centering spring 12 on the surface of the fixed slide rod 10 applies pressure to the adjusting mounting plate 5, causing the adjusting mounting plate 5 to always tend to be in the center position of the fixed slide rod 10. Combined with the action of the centering push rod 13 falling into the V-groove 4, the centering positioning of the prism 8 in the width direction between the two tracks is achieved.

[0051] To further ensure centering accuracy, the centering scale 16 can be adjusted. By rotating the adjustment handle, the adjusting screw 20 is rotated. Since the adjusting screw 20 is threadedly connected to the connecting rod 19, and the connecting rod 19 can only move in a straight line under the guidance of the guide rod 18, the rotation of the adjusting screw 20 will change the lateral distance of the centering plate 3 on the base plate 2. At the same time, observe the relative position of the pointer 9 at the bottom of the prism mounting frame 7 and the centering scale 16. The 0 point of the centering scale 16 is at its center. When the pointer 9 points to the 0 point, it indicates that the prism 8 is in a precise centering position, thus ensuring the accuracy of the total station when measuring through the prism 8.

[0052] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0053] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An auxiliary centering device for orbital prism mapping, comprising an orbital body (1); characterized in that: The surface of the track body (1) is provided with a lifting plate (15), and fixed slide rods (10) are symmetrically installed on the surface of the lifting plate (15). Adjustment mounting plates (5) are slidably connected to the surfaces of the two sets of fixed slide rods (10). Adjustment grooves (11) are opened on the surface of the adjustment mounting plates (5). A connecting rod (6) is slidably connected in the adjustment grooves (11). One end of the connecting rod (6) is fixedly installed on the bottom surface of the adjustment mounting plate (5), and a prism mounting frame (7) is fixedly installed on the other end of the connecting rod (6). A prism (8) for measuring with a total station is installed in the prism mounting frame (7). Two sets of fixed slide rods (10) are symmetrically fitted with centering springs (12) on their outer surfaces. The two centering springs (12) on the same fixed slide rod (10) apply pressure to the adjusting mounting plate (5), causing the adjusting mounting plate (5) to be at the center position of the fixed slide rod (10).

2. The auxiliary centering device for orbital prism mapping according to claim 1, characterized in that: A base plate (2) is provided between the track body (1) and the lifting plate (15). Hydraulic rods (14) are installed on both ends of the base plate (2). The piston ends of the two hydraulic rods (14) are connected to the lifting plate (15). A centering plate (3) is provided at the center line of the surface of the base plate (2). A V-groove (4) is opened on the surface of the centering plate (3). A centering push rod (13) is fixedly installed on the surface of the adjusting mounting plate (5).

3. The auxiliary centering device for orbital prism mapping according to claim 2, characterized in that: When the center plate (3) moves upward, the centering push rod (13) is located at the lowest point of the V-groove (4) on the surface of the center plate (3), which is used to center the width between the two tracks of the prism (8).

4. The auxiliary centering device for orbital prism mapping according to claim 2, characterized in that: The substrate (2) is symmetrically mounted with fixing plates (17), and an adjusting screw (20) is rotatably connected between the two fixing plates (17). An adjusting handle is fixedly connected to one end of the adjusting screw (20) that passes through one of the fixing plates (17). A connecting rod (19) is threadedly connected to the surface of the adjusting screw (20), and the connecting rod (19) is fixedly installed on the bottom surface of the dividing plate (3).

5. The auxiliary centering device for orbital prism mapping according to claim 2, characterized in that: A pointer (9) is fixedly installed at the bottom center of the prism mounting frame (7), and a centering scale (16) for centering adjustment is installed at the center of the surface of the substrate (2).

6. The auxiliary centering device for orbital prism mapping according to claim 4, characterized in that: A guide rod (18) is slidably connected in the through hole opened on the surface of the connecting rod (19), and both ends of the guide rod (18) are connected to two fixing plates (17).

7. The auxiliary centering device for orbital prism mapping according to claim 5, characterized in that: Two fixed seats (21) are symmetrically installed on the bottom surface of the substrate (2). A T-shaped guide rod (23) is slidably connected inside the fixed seat (21). The T-shaped guide rod (23) passes through the fixed seat (21) and the substrate (2) and is fixedly installed on the bottom surface of the lifting plate (15).

8. The auxiliary centering device for orbital prism mapping according to claim 7, characterized in that: The bottom of the fixed base (21) is fixedly installed with a positioning clamp (22) that is adapted to the top surface of the track. The positioning clamp (22) and the track body (1) are provided with a rubber anti-slip pad.

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