A calibration device for a subsurface pipe mapping instrument

Abstract

The utility model relates to a kind of underground pipeline surveying instrument calibration device, comprising: regular framework (1), handle (2) being arranged at the first end of the regular framework (1), connecting support seat (3) and rolling support (4) being arranged at the second end of the regular framework (1);The first end and the second end of the regular framework (1) are opposite;The connecting support seat (3) is arranged at the upper side of the second end of the regular framework (1), and the rolling support (4) is arranged at the lower side of the second end of the regular framework (1).The calibration device of the present scheme is simple in structure, easy to use, and it can complete the calibration work of surveying instrument without relying on pipeline, and can test complex trajectory with large curvature, large difference, etc.

Description

Technical Field

[0001] This utility model relates to the field of pipeline measurement technology, and in particular to a calibration device for an underground pipeline mapping instrument. Background Technology

[0002] In the field of underground pipeline surveying, underground pipeline surveying instruments are key equipment, and their surveying accuracy is crucial for the accurate detection and location of underground pipelines. Verifying the surveying accuracy of the equipment before it leaves the factory is a necessary step to ensure product quality and the reliability of its subsequent applications.

[0003] Traditional methods for calibrating the accuracy of underground pipeline surveying instruments primarily involve collecting static data. This method can provide a preliminary assessment of the equipment's accuracy to some extent; by analyzing data collected in a static environment, it's possible to roughly determine whether the equipment's accuracy meets preset standards. However, this static calibration method has significant limitations. In real-world applications, underground pipeline surveying instruments operate more in dynamic environments. Static calibration cannot fully simulate the various complex operating conditions of the equipment during actual use, leading to discrepancies between the calibration results and actual usage, and failing to accurately reflect the equipment's true accuracy performance in dynamic environments.

[0004] Besides static verification, using known pipelines for accuracy verification is also a common method. For example, outdoor pipelines provide a relatively intuitive test object for verification. By having a surveying instrument measure along a known pipeline, the accuracy of the equipment can be further verified. However, this method is constrained by several factors. On the one hand, the length of the pipeline has a significant impact on the test results. If the pipeline is too short, the surveying instrument cannot demonstrate its accuracy variation characteristics over a sufficiently long distance, making it difficult to comprehensively assess the accuracy stability of the equipment during long-distance surveying. If the pipeline is too long, it not only increases testing costs and time but may also lead to inaccurate test results due to accumulated errors during the measurement process. On the other hand, the radius of curvature of the pipeline cannot be ignored. For pipelines with a small radius of curvature, the surveying instrument may not be able to accurately adapt to the bending changes of the pipeline during the measurement process, resulting in large measurement errors, which also cannot accurately verify the accuracy of the equipment. Moreover, laying pipelines specifically for verification is not only costly but also has fixed requirements for the site, requiring compliance with spatial and geological conditions for pipeline laying. In addition, since the position of the pipeline may change after long-term testing, accuracy verification methods based on the assumption of a fixed pipeline position cannot accurately test the equipment, seriously affecting the reliability of the verification results.

[0005] Therefore, there is an urgent need for a dynamic testing structure that is unaffected by changes in pipe length, radius of curvature, and location, and can be easily completed outdoors, in order to more accurately and efficiently verify the accuracy of underground pipeline mapping instruments. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a calibration device for an underground pipeline surveying instrument.

[0007] To achieve the above-mentioned utility model objectives, this utility model provides a calibration device for an underground pipeline surveying instrument, comprising: a regular frame, a handle disposed at a first end of the regular frame, a connecting support seat and a rolling support disposed at a second end of the regular frame;

[0008] The first and second ends of the rule framework are relative;

[0009] The connecting support is located on the upper side of the second end of the regular frame, and the rolling support is located on the lower side of the second end of the regular frame.

[0010] According to one aspect of the present invention, the regular frame is a rectangular frame, and the two ends of the regular frame in the length direction are respectively formed as a first end and a second end.

[0011] According to one aspect of the present invention, the regular frame is constructed by detachable splicing of aluminum profiles;

[0012] The wide-side aluminum profile of the regular frame is rotatably mounted.

[0013] According to one aspect of the present invention, the connecting support is a rolling support, and it includes: a connecting body and a rolling bearing;

[0014] The connecting seat is provided with a bearing mounting hole, and the rolling bearing is fitted into the bearing mounting hole;

[0015] The lower end of the connecting seat is detachably connected to the regular frame.

[0016] According to one aspect of the present invention, the connecting support is a clamping and fixing seat, and it includes: a fixing seat body and a locking member;

[0017] The fixed base is provided with a clamping mounting hole, and an opening groove is provided at the upper end of the fixed base, penetrating its upper end surface and the clamping mounting hole;

[0018] On opposite sides of the opening groove, there are respectively a through hole for the locking member to pass through and a threaded hole for the locking member to engage, so that the locking member can adjust the width of the opening groove.

[0019] The lower end of the fixed base is detachably connected to the regular frame.

[0020] According to one aspect of the present invention, the connecting support is disposed at the middle position on the upper side of the second end along the width direction of the regular frame.

[0021] According to one aspect of the present invention, the rolling support is provided as one, and along the width direction of the regular frame, the rolling support is located at the middle position on the lower side of the second end.

[0022] According to one aspect of the present invention, the rolling support is provided as two, and the two rolling supports are symmetrically distributed on both sides of the middle position below the second end along the width direction of the regular frame.

[0023] According to one aspect of the present invention, the rolling support is a caster wheel.

[0024] According to one aspect of the present invention, the handle is detachably connected to the first segment of the regular frame;

[0025] The handle is extended downwards or upwards in a direction away from the said rule framework.

[0026] According to one aspect of this utility model, the calibration device has a simple structure and is easy to use. It can complete the calibration of the surveying instrument without relying on pipelines and can test complex trajectories with large curvature and high elevation differences.

[0027] According to one aspect of this utility model, by arranging handles, connecting support seats, and rolling supports along the length of the regular frame, the regular frame can be more easily connected to the underground pipeline surveying instrument. Furthermore, by using the length of the regular frame to propel the underground pipeline surveying instrument for calibration, sufficient space is provided between the operator and the underground pipeline surveying instrument to facilitate the calibration operation of the underground pipeline surveying instrument.

[0028] According to one embodiment of this utility model, by using a rectangular frame and calibrating the underground pipeline surveying instrument along its length, it is more convenient to select different scenarios for calibration operations, such as the ground, roadside platforms, and idle pipelines. The long distance of the long side of the rectangular frame provides a more convenient range for moving the underground pipeline surveying instrument. For roadside platforms, the wheels of the underground pipeline surveying instrument can be placed directly on the platform, and the operator can push and calibrate the instrument from outside the platform using the long rectangular frame. Similarly, for idle pipelines, the long rectangular frame can be more easily inserted into them. Thus, the operator can perform calibration operations on the underground pipeline surveying instrument inside the actual pipeline even from outside the pipeline. This makes the solution highly adaptable to these limited spaces and improves the convenience of use for operators.

[0029] According to one embodiment of this invention, the regular frame can be directly constructed by splicing aluminum profiles, effectively simplifying the structural complexity of the entire regular frame and making it easier to manufacture and assemble. Furthermore, the regular frame of this invention also has the advantages of high structural strength and light weight, making it easier for operators to handle and use.

[0030] According to one embodiment of this utility model, by setting different numbers of rolling supports, flexible cooperation with the end wheel assembly of the underground pipeline mapping instrument can be easily achieved, which more effectively improves the ease of use of this embodiment. Attached Figure Description

[0031] Figure 1 This is a structural diagram of a calibration device for an underground pipeline mapping instrument, according to one embodiment of the present invention.

[0032] Figure 2 This is a structural diagram of the connecting support base according to another embodiment of the present invention;

[0033] Figure 3 This is a structural diagram of a calibration device for an underground pipeline mapping instrument, representing another embodiment of the present invention. Detailed Implementation

[0034] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0035] In describing embodiments of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" express orientations or positional relationships based on the orientations or positional relationships shown in the relevant drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0036] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The embodiments cannot be described in detail here, but the embodiments of the present invention are not limited to the following embodiments.

[0037] like Figure 1As shown, according to one embodiment of the present invention, a calibration device for an underground pipeline mapping instrument includes: a regular frame 1, a handle 2 disposed at the first end of the regular frame 1, a connecting support 3 disposed at the second end of the regular frame 1, and a rolling support 4 disposed at the second end of the regular frame 1; wherein the first end and the second end of the regular frame 1 are opposite to each other; in this embodiment, the connecting support 3 is disposed on the upper side of the second end of the regular frame 1, and the rolling support 4 is disposed on the lower side of the second end of the regular frame 1.

[0038] Furthermore, the rule frame 1 is a rectangular frame, and the two ends of the length direction of the rule frame 1 form the first end and the second end, respectively.

[0039] With the above configuration, based on the arrangement of handle 2, connecting support 3 and rolling support 4 along the length of the regular frame 1, the regular frame 1 can be more easily connected to the underground pipeline surveying instrument. Moreover, by using the length of the regular frame 1 to push the underground pipeline surveying instrument to move for calibration, there is enough space between the operator and the underground pipeline surveying instrument to facilitate the calibration operation of the underground pipeline surveying instrument.

[0040] Furthermore, by using a rectangular frame and calibrating the underground pipeline surveyor along its length, it is easier to select different scenarios for calibration, such as the ground, roadside platforms, and idle pipelines. The long distance of the long side of the rectangular frame provides a more convenient range for moving the underground pipeline surveyor. For roadside platforms, the wheels of the underground pipeline surveyor can be placed directly on the platform, and the operator can push and calibrate the underground pipeline surveyor from outside the platform using the long rectangular frame. Similarly, for idle pipelines, the long rectangular frame can be more easily inserted into them. Thus, the operator can perform calibration operations on the underground pipeline surveyor inside the actual pipeline even from outside the pipeline. This makes the solution highly adaptable to these limited spaces and improves the ease of use for operators.

[0041] like Figure 1 As shown, according to one embodiment of the present invention, the regular frame 1 is constructed by detachable splicing of aluminum profiles; wherein, two long-side aluminum profiles and two wide-side aluminum profiles are cut from the pre-obtained regular frame 1, the ends of the wide-side aluminum profiles are fixedly connected perpendicularly to the ends of the long-side aluminum profiles, and the wide-side aluminum profiles are located between the long-side aluminum profiles, and are fixed with threaded connectors at the connection points.

[0042] With the above configuration, the rule frame 1 of this solution can be directly constructed using aluminum profile splicing, effectively simplifying the structural complexity of the entire rule frame 1 and making it easier to manufacture and assemble. Furthermore, the rule frame 1 of this solution also has the advantages of high structural strength and light weight, making it easier for operators to handle and use.

[0043] like Figure 1 As shown, according to one embodiment of the present invention, the connecting support 3 is a rolling support, and it includes: a connecting body 31 and a rolling bearing; wherein, the connecting body 31 is provided with a bearing mounting hole, and the rolling bearing is fitted into the bearing mounting hole. Furthermore, fixed connecting ears are respectively provided on opposite sides of the lower end of the connecting body 31, thereby allowing the lower end of the connecting body 31 to be detachably connected to the regular frame 1 based on the threaded connector and the fixed connecting ears.

[0044] In this embodiment, the connecting base 31 can be configured as a metal structure, such as a cast iron structure or an aluminum alloy structure.

[0045] By setting the connecting support 3 as a rolling support, it is possible to achieve a rotatable connection with one end of the underground pipeline mapping instrument. Thus, the relative position between the rule frame 1 and the underground pipeline mapping instrument combination structure can be flexibly adjusted by rotating the connection position. Therefore, it is more beneficial to improve the support stability between this solution and the underground pipeline mapping instrument under different calibration scenarios.

[0046] Furthermore, by setting it as a rolling support, it can also eliminate the internal stress caused by the torsion that may exist between the calibration device and the underground pipeline mapping instrument during the calibration process through the rolling action of the connection position. Therefore, it is more beneficial for improving the calibration accuracy in special scenarios (such as idle pipelines).

[0047] like Figure 2 As shown, according to another embodiment of the present invention, the connecting support 3 is a clamping and fixing seat, and it includes: a fixing seat body 32 and a locking member; in this embodiment, the fixing seat body 32 is provided with a clamping and mounting hole, and an opening groove penetrating its upper end surface and the clamping and mounting hole is provided at the upper end of the fixing seat body 32; wherein, on opposite sides of the opening groove, there are respectively a through hole for the locking member to pass through and a threaded hole for the locking member to engage, for the locking member to adjust the width of the opening groove; thereby, the underground pipeline mapping instrument can be quickly installed and secured, effectively ensuring the reliability of the connection position.

[0048] In this embodiment, fixed connecting ears are provided on opposite sides of the lower end of the fixed base 32, thereby the lower end of the fixed base 32 can be detachably connected to the regular frame 1 based on the threaded connector and the fixed connecting ears.

[0049] In this embodiment, the fixing base 32 can be configured as a metal structure, such as an aluminum alloy structure.

[0050] By setting the fixed base 32 as a clamping fixed base, it is possible to achieve rapid and stable installation with the underground pipeline surveying instrument, effectively ensuring the reliability of the connection position. Especially for the calibration process of flat site, the clamping fixed base method can keep the relative position between the regular frame 1 and the underground pipeline surveying instrument combination structure fixed, so as to fully meet the calibration accuracy in flat site.

[0051] like Figure 1 As shown, according to one embodiment of the present invention, the connecting support 3 is set at the middle position on the upper side of the second end along the width direction of the regular frame 1.

[0052] The above settings ensure that the connection between the calibration device and the underground pipeline surveying instrument is on the central axis of the calibration device, which effectively guarantees the stability of the support connection.

[0053] like Figure 1 As shown, according to one embodiment of the present invention, a rolling support 4 is provided, and along the width direction of the regular frame 1, the rolling support 4 is provided at the middle position on the lower side of the second end.

[0054] With the above settings, a rolling support 4 can be directly arranged below the connecting support 3, which can more fully ensure that the support position is on the central axis of the calibration device and effectively ensure the stability of the support connection.

[0055] like Figure 3 As shown, according to another embodiment of the present invention, two rolling supports 4 are provided, and the two rolling supports 4 are symmetrically distributed on both sides of the middle position of the lower side of the second end along the width direction of the regular frame 1.

[0056] With the above settings, the stability of this solution can be improved more effectively by using two symmetrically arranged rolling supports 4.

[0057] According to this scheme, by setting different numbers of rolling supports 4, it is possible to easily achieve flexible cooperation with the end wheel assembly of the underground pipeline mapping instrument, which more effectively improves the ease of use of this scheme.

[0058] like Figure 1 As shown, according to one embodiment of the present invention, the rolling support 4 is a caster wheel.

[0059] The above settings effectively ensure the stability of this solution during use. In particular, the omnidirectional wheel design makes the rolling more flexible, thus giving this solution better adaptability.

[0060] like Figure 1 As shown, according to one embodiment of the present invention, the handle 2 is detachably connected to the first section of the regular frame 1; wherein, the handle 2 extends downward or upward in a direction away from the regular frame 1. In this embodiment, the handle 2 has a symmetrical structure; wherein, the handle 2 is made of a round tube, having a straight round tube portion for connecting to the regular frame 1, and a grip portion for holding, wherein the grip portion is provided at the end of the straight round tube portion and is bent relative to the straight round tube portion.

[0061] like Figure 1 As shown, according to one embodiment of this utility model, the regular frame 1 is used to rotatably mount the wide-side aluminum profile and the long-side aluminum profile of the connecting support 3. Specifically, by adjusting the rotation angle of the wide-side aluminum profile on the upper side of the connecting support 3, the underground pipeline mapping instrument and the regular frame 1 can be made to have a certain angle, realizing flexible adjustment of the relative position of the regular frame 1 and the underground pipeline mapping instrument, making this solution easier for users to use and improving its flexibility. In this embodiment, the wide-side aluminum profile and the long-side aluminum profile can be connected by an angle adjustment structure, or they can be directly connected by a threaded connection locking method. After adjusting the rotation angle of the wide-side aluminum profile, the rotation angle of the wide-side aluminum profile can be fixed by the locking effect of the threaded connection.

[0062] To further illustrate this scheme, the calibration process using this scheme will be further explained.

[0063] Connection configuration between the calibration device and the underground pipeline mapping instrument:

[0064] Form 1: One wheel of the underground pipeline surveying instrument touches the ground, and the calibration device uses two rolling supports 4, thus realizing a three-point support method between the underground pipeline surveying instrument and the calibration device.

[0065] Form 2: The underground pipeline surveying instrument has two wheels touching the ground, and the calibration device uses a rolling support 4, thus realizing a three-point support method between the underground pipeline surveying instrument and the calibration device.

[0066] Calibration process:

[0067] Plan a route outdoors, use an RTK device to collect the northeast-high trajectory of the route, and save it;

[0068] Use either Form 1 or Form 2 to connect the calibration device to the underground pipeline mapping instrument;

[0069] Based on the handle 2 pushing the underground pipeline mapping instrument along the path, the underground pipeline mapping instrument will record the trajectory of the path;

[0070] Compare the paths taken by RTK equipment and underground pipeline mapping instruments to evaluate the mapping accuracy of underground pipeline mapping instruments.

[0071] The above content is merely an example of a specific solution of this utility model. For the equipment and structures not described in detail, it should be understood that they are implemented using common equipment and methods already available in the field.

[0072] The above description is merely one solution of this utility model and is not intended to limit this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A calibration device for a subsurface pipe mapping instrument, comprising: include: The rule frame (1), the handle (2) set at the first end of the rule frame (1), the connecting support (3) and the rolling support (4) set at the second end of the rule frame (1); The first and second ends of the rule framework (1) are relative; The connecting support (3) is located on the upper side of the second end of the regular frame (1), and the rolling support (4) is located on the lower side of the second end of the regular frame (1).

2. The calibration device for an underground pipeline mapping instrument according to claim 1, characterized in that, The rule frame (1) is a rectangular frame, and the two ends of the rule frame (1) in the length direction form a first end and a second end, respectively.

3. The calibration device for an underground pipeline mapping instrument according to claim 1 or 2, characterized in that, The rule framework (1) is constructed using detachable aluminum profile splicing. The wide-side aluminum profile of the rule frame (1) is rotatably mounted.

4. The calibration device for an underground pipeline mapping instrument according to claim 3, characterized in that, The connecting support (3) is a rolling support, and it includes: a connecting body (31) and a rolling bearing; The connecting seat (31) is provided with a bearing mounting hole, and the rolling bearing is fitted into the bearing mounting hole; The lower end of the connecting seat (31) is detachably connected to the regular frame (1).

5. The calibration device for an underground pipeline mapping instrument according to claim 3, characterized in that, The connecting support (3) is a clamping and fixing seat, and it includes: a fixing seat body (32) and a locking member; The fixed base (32) is provided with a clamping mounting hole, and an opening groove is provided at the upper end of the fixed base (32) that penetrates its upper end surface and the clamping mounting hole; On opposite sides of the opening groove, there are respectively a through hole for the locking member to pass through and a threaded hole for the locking member to engage, so that the locking member can adjust the width of the opening groove. The lower end of the fixed base (32) is detachably connected to the regular frame (1).

6. The calibration device for an underground pipeline mapping instrument according to claim 4 or 5, characterized in that, Along the width direction of the rule frame (1), the connecting support (3) is positioned at the middle position on the upper side of the second end.

7. The calibration device for an underground pipeline mapping instrument according to claim 6, characterized in that, The rolling support (4) is set as one, and along the width direction of the regular frame (1), the rolling support (4) is set at the middle position on the lower side of the second end.

8. The calibration device for an underground pipeline mapping instrument according to claim 6, characterized in that, The rolling support (4) is set to two, and along the width direction of the regular frame (1), the two rolling supports (4) are symmetrically distributed on both sides of the middle position on the lower side of the second end.

9. The calibration device for an underground pipeline mapping instrument according to claim 7 or 8, characterized in that, The rolling support (4) is a caster wheel.

10. The calibration device for an underground pipeline mapping instrument according to claim 9, characterized in that, The handle (2) is detachably connected to the first segment of the rule frame (1); The handle (2) is extended downward or upward in a direction away from the rule framework (1).

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