A water conservancy pipeline measuring device

Abstract

A water conservancy pipeline measuring device, belonging to the field of pipeline measurement technology, includes a pipeline and a bottom plate, a support unit is arranged on the bottom plate, a driving unit, a scale, a measuring unit, and an inner support unit are arranged on the supporting unit, the measuring unit is used to measure the inner diameter, outer diameter, and thickness of the pipeline, the inner support unit is used to position the inner support of the pipeline, and the driving unit drives the measuring unit and the inner support unit to function simultaneously. The present invention adopts the same measuring device and utilizes a single measurement step to simultaneously meet the detection of three linear dimensions of the inner diameter, outer diameter, and thickness of the pipeline. Compared with traditional equipment that can only meet the measurement of the inner diameter of the pipeline at a single time, it can more efficiently and comprehensively meet the comprehensive requirements for pipeline size measurement during actual measurement, and the entire measurement process is based on a stable and unified reference point, which fundamentally eliminates the errors caused by inconsistent reference points.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline measurement, and in particular relates to a water conservancy pipeline measuring device. Background Art

[0002] The quality and performance of water conservancy pipelines play a vital role in the stable operation of the entire water conservancy system. Therefore, it is very important to accurately measure the linear dimensions of the pipeline, such as diameter and thickness, before the pipeline is put into use. The pipeline diameter meets the requirements, which can ensure accurate docking with other pipe fittings and effectively avoid leakage and poor water flow at the joints. The thickness measurement of the pipeline is related to the strength and durability of the pipeline. When subjected to water pressure, soil pressure and water flow erosion, sufficient thickness can prevent the pipeline from rupture and deformation, avoid water resource waste, engineering failures and possible secondary disasters caused by pipeline damage, and ensure the long-term stable operation of water conservancy projects.

[0003] The related technology (announcement number is CN210135865U) discloses a water conservancy project pipeline measuring device, including an installation box, a first arc-shaped clamping plate and a second arc-shaped clamping plate. The inner wall of the bottom end of the installation box is rotatably connected to the bottom end of the rotating rod through a first bearing, and the top of the rotating rod passes through the installation box and is fixedly connected to one end of the rotating handle. The middle part of the rotating rod is fixedly installed with a first bevel gear, and the first bevel gear is meshed with the second bevel gear. The utility model is a water conservancy project pipeline measuring device. The rotating rod is driven to rotate by the arranged rotating handle, and the first bevel gear and the second bevel gear are meshed and connected. The utility model is a water conservancy project pipeline measuring device. The rotating rod is driven to rotate by the arranged rotating handle, and the first bevel gear and the second bevel gear are cooperated with each other to drive the screw rod to rotate. The screw rod is threadedly connected to the first measuring plate and the second measuring plate through the first screw rod nut and the second screw rod nut. Under the action of the limit rod, the first measuring plate and the second measuring plate are driven to move toward each other, thereby driving the first arc-shaped clamping plate and the second arc-shaped clamping plate to move toward each other, and the distance between the first measuring plate and the second measuring plate is conveniently measured through the scale line.

[0004] In the above scheme, although it can meet the task of measuring the pipe diameter, this measurement is limited to obtaining the outer diameter data of the pipe, and cannot effectively meet the measurement requirements of the inner diameter of the pipe. When faced with the actual application scenario where the inner and outer diameters of the same pipe need to be accurately grasped, due to the functional limitations of the scheme itself, it is necessary to use other equipment specifically used to measure the inner diameter to complete the corresponding measurement work. That is, in the actual application of pipeline measurement, the above scheme cannot simultaneously take into account and accurately measure the inner and outer diameters of the pipe, and it is difficult to efficiently and comprehensively meet the comprehensive requirements for pipe size measurement in actual measurement, and the application places of the equipment are limited. Summary of the invention

[0005] In view of the problems that the existing pipeline detection devices in the prior art cannot simultaneously take into account and accurately measure the inner diameter and outer diameter of the pipeline, it is difficult to efficiently and comprehensively meet the comprehensive needs for pipeline size measurement during actual measurement, and the application sites of the equipment are limited. The present invention provides a water conservancy pipeline measurement device, which uses the same measurement device, and a single measurement can simultaneously meet the detection of three linear dimensions of the inner diameter, outer diameter, and thickness of the pipeline. Compared with traditional equipment that can only meet the measurement of the inner diameter of the pipeline at a time, it can more efficiently and comprehensively meet the comprehensive needs for pipeline size measurement during actual measurement, avoiding the limitations of the application of traditional equipment. Its specific technical solution is as follows:

[0006] A water conservancy pipeline measuring device comprises a pipeline and a bottom plate, wherein a support unit is arranged on the bottom plate, and a driving unit, a scale, a measuring unit, and an inner support unit are arranged on the support unit, wherein the measuring unit is used to measure the inner diameter, outer diameter, and thickness of the pipeline, the inner support unit is used to position the inner support of the pipeline, and the driving unit drives the measuring unit and the inner support unit to function simultaneously;

[0007] The measuring unit comprises four cursors, which are slidably sleeved on the scale, and each two cursors form a group. The two groups of cursors are symmetrically arranged with the center line of the scale as the axis, and the two cursors in each group move away from each other or towards each other in the horizontal direction along the scale;

[0008] The internal support unit includes multiple airbags, and two adjacent airbags are circumferentially equidistantly arranged along the inner wall of the pipe. The multiple airbags in the inflated state are tightly attached to the inner wall of the pipe to achieve internal support for the pipe. The multiple airbags in the deflated state are detached from the inner wall of the pipe to eliminate the internal support effect on the pipe.

[0009] In the above technical solution, the measuring unit further includes a mounting assembly;

[0010] The mounting assembly includes two first mounting seats mounted on the support unit, a limiting rod is installed between the two first mounting seats, the cross-sectional shape of the limiting rod is a regular polygon, and two second mounting seats are symmetrically installed on the support unit, and the top end of each second mounting seat is rotatably connected to a first rotating shaft.

[0011] In the above technical solution, the measuring unit further includes a displacement component;

[0012] The displacement assembly includes two moving rods arranged to move in the horizontal direction. The moving rods are slidably mounted on the limiting rods. The moving rods are L-shaped. A moving frame is vertically installed on the ends of the moving rods. The moving frame has a middle through cavity. A second sliding pin is slidably embedded in the moving frame.

[0013] In the above technical solution, the measuring unit further includes a linkage component;

[0014] The linkage assembly includes a fixed rod fixedly installed on the rear side of the second sliding pin, and also includes a swing rod installed on the rear end of the first rotating shaft. The first rotating shaft is installed at the center position of the swing rod. The fixed rod is fixedly connected to the swing rod. Both ends of the swing rod are respectively rotatably connected to one end of a linkage rod, and the two linkage rods are symmetrically arranged relative to the center of the swing rod.

[0015] In the above technical solution, the measuring unit further includes a measuring component;

[0016] The measuring assembly includes four moving seats, each of which is slidably sleeved on the scale, the other end of each linkage rod is rotatably connected to the side wall of each moving seat, two moving seats form a group, and one end of a telescopic rod is vertically installed on the opposite side of two moving seats in each group, a displacement block is installed on the other end of the telescopic rod, a spring is sleeved on the telescopic rod, and the two ends of the spring are respectively connected to the moving seat and the displacement block, and the displacement block is connected to the vernier.

[0017] In the above technical solution, arc-shaped avoidance parts are respectively provided at the upper and lower ends of the displacement block, and the cursor is arranged to be inclined and contracted from the outside toward the direction close to the side wall of the pipeline.

[0018] In the above technical solution, the inner support unit also includes a first hollow cylinder, which is a hollow sealing body, and a push plate is slidably embedded in the inner cavity of the first hollow cylinder, a push rod is vertically installed on the front side of the push plate, and the front end of the push rod slides forward and extends out of the outer wall of the first hollow cylinder, and an airtight pad is installed on the front side wall of the first hollow cylinder, and the airtight pad is arranged between the push rod and the first hollow cylinder, and the rear side of the first hollow cylinder is connected to one end of a U-shaped ventilation pipe, and the other end of the U-shaped ventilation pipe is connected to a second hollow cylinder, and the second hollow cylinder is a hollow sealing body, and a plurality of straight ventilation pipes are circumferentially connected to the side wall of the second hollow cylinder, and the number of the straight ventilation pipes is the same as that of the airbag and the positions correspond, and each of the straight ventilation pipes is connected to the inner cavity of the airbag.

[0019] In the above technical solution, the inner support unit further includes a support assembly for supporting the airbag;

[0020] The support assembly includes a support rod fixedly mounted on the side wall of the second hollow cylinder, an arc-shaped support plate fixedly mounted on one end of the support rod facing away from the side wall of the second hollow cylinder, the airbag is arranged in the inner cavity of the arc-shaped support plate, and the arc-shaped support plate is arranged to be arc-shaped, and the curvature of the arc-shaped support plate is adapted to the curvature of the outer wall of the airbag.

[0021] In the above technical solution, the support unit includes a column vertically mounted on the bottom plate, a horizontal plate is vertically mounted on the top of the column, a front extension platform is mounted on the front side of the horizontal plate, a rear extension platform is mounted on the rear side of the horizontal plate, a first support frame is vertically mounted on the top of the rear extension platform, a first support sleeve is mounted on the top of the first support frame, a second support frame is vertically mounted on the horizontal plate, and a second support sleeve is mounted on the top of the second support frame;

[0022] Wherein, the first mounting seat is installed on the transverse plate, the second mounting seat is vertically installed on the transverse plate, the first supporting sleeve is sleeved and positioned on the U-shaped ventilation pipe, and the second supporting sleeve is sleeved and positioned on the first hollow cylinder.

[0023] In the above technical solution, the driving unit includes a cylinder installed on the front extension platform, the output end of the cylinder is connected to a moving plate, the moving plate is symmetrically and tiltedly installed with two driving rods, each of the driving rods is provided with a slide groove, a first sliding pin is slidably embedded in the inner cavity of the slide groove, and a vertical plate is vertically installed in the middle of the top of the moving plate;

[0024] Wherein, the first sliding pin is fixedly connected to the moving rod, and the vertical plate is fixedly connected to the pushing rod.

[0025] Compared with the prior art, the water conservancy pipeline measuring device of the present invention has the following beneficial effects:

[0026] First, the existing pipeline detection device cannot simultaneously take into account and accurately measure the inner diameter and outer diameter of the pipeline, and it is difficult to efficiently and comprehensively meet the comprehensive needs of pipeline size measurement in actual measurement. The application site of the device is limited. The present invention is provided with measurement functions on the inner and outer walls of the pipeline, that is, the same measuring device is used, and a single measurement step is used to meet the synchronous measurement of the inner diameter and outer diameter of the pipeline, and the pipeline thickness data can also be obtained at the same time, that is, a single measurement can simultaneously meet the detection of the three linear dimensions of the inner diameter, outer diameter and thickness of the pipeline. Compared with the traditional equipment that can only meet the measurement of the inner diameter of the pipeline at a time, it can more efficiently and comprehensively meet the comprehensive needs of pipeline size measurement in actual measurement, and avoid the limitations of the application of traditional equipment;

[0027] Second, in the traditional method of pipeline inspection, due to the lack of integrated measurement functions, it is often necessary to use multiple operations and a variety of different measuring devices to obtain the inner diameter, outer diameter and thickness data of the pipeline respectively. In this decentralized measurement method, the measurement reference points used by each measuring device are different, and it is difficult to ensure the consistency and accuracy of the data during the measurement process; for example, the device for measuring the inner diameter uses a certain point on the inner wall of the pipeline as the reference, while the device for measuring the outer diameter uses another point on the outer wall of the pipeline as the starting point. When it comes to calculating the thickness by the difference between the outer diameter and the inner diameter, due to the inconsistency of the reference, it is very easy to introduce systematic errors, resulting in the final data The inaccuracy of the conventional measurement system cannot provide a reliable basis for the quality assessment and practical application of the pipeline. In the present invention, a unified and accurate integrated measurement system is provided on the inner and outer walls of the pipeline. When performing the measurement operation, only a single measurement step is required to synchronously obtain the inner diameter and outer diameter data of the pipeline, and at the same time obtain the pipeline thickness data. The entire measurement process is based on a stable and unified reference point, which fundamentally eliminates the errors caused by inconsistent reference points, thereby ensuring the high accuracy and reliability of the obtained inner diameter, outer diameter and thickness data, and can also improve the measurement efficiency and reduce the measurement time and labor cost of multiple equipment replacements.

[0028] Third, in view of the fact that most existing methods only measure the thickness of a certain point of the pipeline and only obtain data from a single position, the data often cannot fully and accurately reflect the actual situation of the overall side wall thickness of the pipeline, lack sufficient representativeness, and are prone to misjudgment of the uniformity of the overall thickness of the pipeline due to local differences, affecting the accuracy of subsequent assessment of the quality status of the pipeline. The left and right groups of cursors of the present invention can clamp the left and right sides of the pipeline respectively. When measuring, through a single measurement operation, the thickness data of the left and right sides of the pipeline can be obtained at one time, and then the direct comparison and analysis of the thickness data of the left and right sides can be realized, so as to obtain an accurate conclusion on whether the thickness of the left and right sides of the pipeline is consistent, so as to accurately judge whether the thickness of the left and right side walls of the pipeline is uniform and unified, which not only significantly improves the measurement efficiency, but also fundamentally avoids the problem of unrepresentativeness of single-point measurement data, and provides more comprehensive, reliable and convincing data support for pipeline quality control and performance evaluation;

[0029] Fourth, in the present invention, even if the thickness of the left and right sides of the pipeline is different, the left and right sides of the pipeline can still be clamped by the cooperation of the telescopic rod, spring, displacement block, arc-shaped avoidance part, cursor and other components, that is, the present invention ensures that no matter whether the thickness of the left and right sides of the pipeline is the same or different, the close fit between the cursor and the side wall of the pipeline can always be maintained, so as to accurately display the actual thickness values ​​of the left and right sides of the pipeline, thereby coping with various complex and changeable detection and use requirements such as qualified and unqualified pipeline thickness;

[0030] Fifth, in the present invention, the synchronous displacement of the left and right groups of moving rods can be achieved through the driving of the driving unit, and the cooperation of the moving frame, the second sliding pin, the fixed rod, the swing rod, the first rotating shaft and other components can be achieved to achieve the synchronous clamping of the inner and outer side walls of the pipe by the left and right groups of cursors. That is, in the present invention, the two groups of cursors responsible for thickness detection on the left and right sides can be driven simultaneously by a unified driving force to accurately and synchronously clamp the inner and outer side walls of the pipe, which not only achieves efficient conservation in the use of power energy and avoids energy waste caused by multiple independent drives, but also ensures the high synchronization and uniformity of the thickness measurement process on the left and right sides. Compared with the traditional step-by-step measurement method, the synchronous clamping measurement greatly reduces the data errors on the left and right sides caused by factors such as measurement time difference and inconsistent operation, and significantly improves the accuracy and reliability of the measurement results;

[0031] Sixth, in the present invention, an arc-shaped avoidance portion is provided at the end of the displacement block, which can prevent the arc-shaped avoidance portion from contacting the side wall of the pipeline, thereby preventing the cursor from being unable to fit the side wall of the pipeline. That is, by providing the arc-shaped avoidance portion, the cursor is ensured to move along the scale to fit the side wall of the pipeline without obstruction, thereby ensuring normal measurement. In addition, by providing a prism-shaped cursor, it is further ensured that the side wall of the cursor is completely in contact with the inner wall of the pipeline, thereby preventing the edge of the cursor from affecting the degree of fit between the cursor and the inner wall of the pipeline, thereby ensuring the accuracy of the cursor in detecting various dimensions of the pipeline.

[0032] 7. In the present invention, the two moving seats in each group are synchronously driven by the rotation of the swing rod, so as to ensure the synchronization of the displacement of the two moving seats in each group, thereby ensuring that the two cursors in each group can approach the side wall of the pipeline under the action of the same driving force, so as to realize the detection of the inner diameter, outer diameter and thickness of the pipeline;

[0033] 8. When connecting the traditional measuring device to the pipeline, the hard connection method of screws and nuts is adopted. In the actual measurement environment, it is easy to be disturbed by external factors such as equipment vibration, resulting in displacement between the measuring device and the pipeline, and the displacement will directly cause the change of the measurement reference, and then cause deviation in the measurement data, seriously affecting the accuracy and reliability of the measurement, and failing to meet the problem of high-precision measurement requirements. The present invention realizes a soft connection between the measuring device and the pipeline by supporting the airbag on the inner wall of the pipeline through inflation. The soft connection characteristics of the airbag can effectively buffer the impact force and vibration caused by external factors, greatly reduce the possibility of displacement of the measuring device relative to the pipeline, and improve the accuracy and stability of the measurement data. In addition, the soft connection method makes the installation and adjustment of the measuring device more convenient and efficient. Compared with the hard connection requiring precise thread alignment and tightening operations, the airbag connection only needs to inflate the airbag in the straight ventilation pipe, which greatly shortens the installation time and labor costs.

[0034] IX. In the present invention, the inflation volume of the airbag can be flexibly controlled and adjusted. When facing pipes with different diameters, the airbag can be flexibly adapted by adjusting the inflation volume, showing good versatility and adaptability, avoiding the complexity of hard connection equipped with screws and nuts of various specifications to meet the connection requirements of different pipe diameters, and further reducing the complexity and cost of the equipment;

[0035] 10. In the present invention, multiple groups of airbags are arranged circumferentially in the pipeline, and two adjacent airbags are arranged at equal distances, which can achieve uniform internal support of the measuring device in the pipeline and ensure uniform and stable support of multiple groups of airbags in the inner cavity of the pipeline;

[0036] 11. The present invention can realize the inflation or deflation of each airbag by the forward and backward displacement of the push piece along the inner cavity of the first hollow cylinder, thereby realizing the airbag to fit the inner wall of the pipeline for support, or the airbag to detach from the inner wall of the pipeline to realize the disassembly of the measuring device at the pipeline, which greatly simplifies the assembly steps and time of the measuring device and the pipeline;

[0037] 12. In the present invention, a support function for the airbag is provided to ensure that the deflated airbag can still be supported in the arc-shaped support plate and will not fall, thereby avoiding the situation where the airbag falls and is entangled after being deflated, which is more conducive to the direct application of the next measurement device;

[0038] 13. The present invention can achieve the displacement of the push rod through the driving unit, thereby achieving the inflation or deflation of the airbag. The driving unit can also drive the left and right groups of cursors to measure the inner diameter, outer diameter and thickness of the pipeline, that is, the driving unit can complete the inner support connection of the measuring device in the pipeline and the measurement operation of the pipeline at the same time. The present invention realizes the two functions of inner support positioning and pipeline measurement through the driving unit, making the structure of the entire measuring device more compact and integrated. Compared with the traditional measuring equipment that requires multiple independent driving and control components to respectively realize different functions, it reduces unnecessary redundant component settings and can reduce the complexity and manufacturing cost of the equipment. At the same time, the compact structure makes the measuring device easier to install and operate in a limited space, and improves the adaptability of the equipment to different working environments.

[0039] 14. In the present invention, the airbag is arranged at the rear side of the scale so as to extend into the inner cavity of the pipe to support the inner wall of the pipe. The U-shaped ventilation pipe arranged in a U shape can leave enough space for the relative displacement of the measuring unit on the scale without interfering with the measurement of the measuring unit. The support unit can also support and position the U-shaped ventilation pipe and the scale. The support unit can meet the positioning and installation requirements of multiple components.

[0040] 15. In the present invention, the airbag is used to support the inner wall of the pipeline, which can save more external positioning space than the traditional external support method, and is more adaptable to the measurement environment with limited external space;

[0041] 16. In the present invention, the centers of the push rod, the second hollow cylinder and the pipeline are arranged in a collinear manner from front to back, and the scale is arranged symmetrically with respect to the center line, and the two sets of cursors are arranged symmetrically with respect to the scale, that is, it can be ensured that when the pipeline is measured, the overall measuring device can be arranged symmetrically with respect to the center of the pipeline, thereby ensuring the accuracy of the reference point for measuring various dimensions of the pipeline;

[0042] 17. In the present invention, the support unit can provide a stable support environment for the driving unit, the scale, the measuring unit, and the inner support unit, thereby ensuring a stable assembly connection between the measuring device and the pipeline;

[0043] 18. The present invention can realize the left-right symmetric arrangement of the scale relative to the center of the pipeline through the cooperation of the bracket, the positioning pin and other components, so as to ensure that the two sets of cursors on the left and right sides of the scale can perform left-right symmetric measurement relative to the pipeline;

[0044] 19. The present invention is provided with a supporting assembly, which can support the pipeline and also manually rotate the pipeline along the surface of the supporting roller, so that the dimensions of different positions of the pipeline circumference can be measured, which better meets the measurement requirements of different parts of the pipeline;

[0045] In summary, the present invention adopts the same measuring device and utilizes a single measuring step, which can simultaneously meet the detection of three linear dimensions of the inner diameter, outer diameter and thickness of the pipeline. Compared with the traditional equipment that can only meet the inner diameter measurement of the pipeline at a time, it can more efficiently and comprehensively meet the comprehensive needs of pipeline size measurement during actual measurement, and the entire measurement process is based on a stable and unified reference point, which fundamentally eliminates the errors caused by inconsistent reference points, thereby ensuring the high accuracy and reliability of the obtained inner diameter, outer diameter and thickness data, and can also improve the measurement efficiency, reduce the measurement time and labor costs of multiple equipment replacements, and in addition, through a single measurement operation, the thickness data of the left and right sides of the pipeline can be obtained at one time, and then the direct comparison and analysis of the thickness data on the left and right sides can be realized, so as to draw an accurate conclusion on whether the thickness of the left and right sides of the pipeline is consistent, so as to accurately judge whether the thickness of the left and right side walls of the pipeline is uniform and uniform; in addition, the present invention adopts a soft connection method, which can effectively buffer the impact and vibration caused by external factors, greatly reducing the measurement. The possibility of displacement of the device relative to the pipeline improves the accuracy and stability of the measured data, and the soft connection method makes the installation and adjustment of the measuring device more convenient and efficient. The airbag connection only needs to inflate the airbag in the straight ventilation pipe, which greatly shortens the installation time and labor costs. The inflation volume of the airbag can be flexibly controlled and adjusted. When facing pipelines with different diameters, the airbag can be flexibly adapted by adjusting the inflation volume, showing good versatility and adaptability. A support function for the airbag is also provided to ensure that the deflated airbag can still be supported in the arc-shaped support plate and will not fall, thereby avoiding the situation where the airbag falls and is entangled after deflation; moreover, the present invention realizes the two functions of internal support positioning and pipeline measurement through a drive unit, making the structure of the entire measuring device more compact and integrated. Compared with traditional measuring equipment that requires multiple independent drive and control components to respectively realize different functions, unnecessary redundant component settings are reduced, and the compact structure makes the measuring device easier to install and operate in a limited space, thereby improving the adaptability of the equipment to different working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a schematic diagram of the main structure of the column of the present invention;

[0047] Figure 2 It is a schematic diagram of the main structure of the present invention;

[0048] Figure 3 It is a structural schematic diagram of the supporting assembly of the present invention;

[0049] Figure 4 It is a structural schematic diagram of the horizontal plate of the present invention;

[0050] Figure 5 is a schematic structural diagram of a drive unit of the present invention;

[0051] Figure 6 It is a schematic diagram of the top view of the driving rod of the present invention;

[0052] Figure 7 for Figure 6 A magnified image of point A;

[0053] Figure 8 It is a schematic diagram of the main structure of the bracket of the present invention;

[0054] Fig. 9 It is a schematic diagram of the main structure of the swing lever of the present invention;

[0055] Fig.10 It is a schematic diagram of the structure of the airbag of the present invention;

[0056] Fig.11 It is a schematic diagram of the cross-sectional structure of the first hollow cylinder of the present invention;

[0057] Fig.12 It is a left-side structural schematic diagram of the U-shaped vent pipe of the present invention;

[0058] Fig.13 It is a schematic structural diagram of the straight ventilation pipe of the present invention when it is separated from the second hollow cylinder;

[0059] Figures 1 to 13 In the figure, 1, bottom plate, 2, support unit, 2001, column, 2002, horizontal plate, 2003, front extension platform, 2004, rear extension platform, 2005, first support frame, 2006, first support sleeve, 2007, support seat, 2008, bracket, 2009, positioning pin, 2010, second support frame, 2011, second support sleeve, 3, driving unit, 3001, cylinder, 3002, moving plate, 3003, driving rod, 3004, slide groove, 3005, first sliding pin, 3006, vertical plate, 4, scale, 5, measuring unit, 5001, first mounting seat, 5002, limit rod, 5003, second mounting seat, 5004, moving rod, 5005, moving frame, 5 006. second sliding pin; 5007. fixed rod; 5008. swing rod; 5009. connecting rod; 5010. moving seat; 5011. telescopic rod; 5012. spring; 5013. displacement block; 5014. arc-shaped avoidance portion; 5015. cursor; 5016. first rotating shaft; 6. inner support unit; 6001. first hollow cylinder; 6002. push piece; 6003. push rod; 6004. airtight pad; 6005. U-shaped ventilation pipe; 6006. second hollow cylinder; 6007. support rod; 6008. arc-shaped support plate; 6009. straight ventilation pipe; 6010. air bag; 7. supporting assembly; 7001. mounting frame; 7002. second rotating shaft; 7003. supporting roller; 8. pipeline. DETAILED DESCRIPTION

[0060] The following is a combination of specific implementation cases and attached Figures 1 to 13 The present invention is further described below, but the present invention is not limited to these embodiments.

[0061] See also Figures 1 to 13 As shown, a water conservancy pipeline measuring device includes a pipeline 8. The device is used to measure the outer diameter, inner diameter and thickness of the pipeline 8, and also includes a base plate 1. A support unit 2 is arranged on the base plate 1. A drive unit 3, a scale 4, a measuring unit 5 and an inner support unit 6 are arranged on the support unit 2. The support unit 2 provides support for the installation of the drive unit 3, the scale 4, the measuring unit 5 and the inner support unit 6. The measuring unit 5 is used to measure the inner diameter, outer diameter and thickness of the pipeline 8. The inner support unit 6 is used to position the inner support of the pipeline 8. The inner support unit 6 ensures that the pipeline 8 is supported stably during the measurement process, and the accuracy of the measurement data is ensured. The drive unit 3 drives the measuring unit 5 and the inner support unit 6 to play a role at the same time. The drive unit 3 realizes the two functions of inner support positioning and pipeline measurement, so that the structure of the entire measuring device is more compact and integrated. Compared with the traditional measuring equipment that requires multiple independent driving and control components to respectively realize different functions, unnecessary redundant component settings are reduced. The compact structure makes the measuring device easier to install and operate in a limited space, and improves the adaptability of the equipment to different working environments.

[0062] The present invention adopts the same measuring device and utilizes a single measuring step, which can simultaneously meet the detection of the three linear dimensions of the inner diameter, outer diameter and thickness of the pipeline 8. Compared with the traditional equipment that can only meet the inner diameter measurement of the pipeline at a time, it can more efficiently and comprehensively meet the comprehensive needs of pipeline size measurement during actual measurement, and the entire measurement process is based on a stable and unified reference point, which fundamentally eliminates the errors caused by inconsistent reference points, thereby ensuring the high accuracy and reliability of the obtained inner diameter, outer diameter and thickness data, and can also improve the measurement efficiency, reduce the measurement time and labor cost of multiple equipment replacements, and in addition, through a single measurement operation, the thickness data of the left and right sides of the pipeline 8 can be obtained at one time, and then the direct comparison and analysis of the thickness data of the left and right sides can be realized, so as to draw an accurate conclusion on whether the thickness of the left and right sides of the pipeline 8 is consistent, so as to accurately judge whether the thickness of the left and right side walls of the pipeline 8 is uniform.

[0063] Specific reference Figures 4 to 9As shown, the measuring unit 5 includes four cursors 5015, and the four cursors 5015 are slidably sleeved on the scale 4. Every two cursors 5015 form a group, and the two groups of cursors 5015 are symmetrically arranged with the center line of the scale 4 as the axis. The two cursors 5015 in each group move away from each other or towards each other in the horizontal direction along the scale 4. When the two cursors 5015 in each group move towards each other along the outer wall of the scale 4, the two cursors 5015 can be urged to fit the inner and outer side walls of the pipe 8 respectively, see Figure 2 As shown, L1 is the distance between the side walls of the two middle cursors 5015 on the opposite side, that is, the inner diameter of the pipe 8, L2 is the distance between the side walls of the two outer cursors 5015 on the close side, that is, the outer diameter of the pipe 8, and L3 is the distance between the side walls of the two cursors 5015 in the left and right groups on the close side, that is, the thickness of the pipe 8;

[0064] Specific reference Figures 10 to 13 As shown, the inner support unit 6 includes a plurality of airbags 6010. In the present application, three airbags 6010 are provided, and two adjacent airbags 6010 are equidistantly arranged along the inner wall of the pipe 8 in the circumferential direction. In the present application, the interval between two adjacent airbags 6010 is set to 120 degrees. The plurality of airbags 6010 in the inflated state are closely attached to the inner wall of the pipe 8 to achieve inner support for the pipe 8, thereby ensuring that the pipe 8 can remain stable during the subsequent measurement process. The plurality of airbags 6010 in the deflated state are separated from the inner wall of the pipe 8 to remove the inner support effect on the pipe 8, so as to remove the support effect on the pipe 8 at one time, which is convenient and quick.

[0065] The present invention adopts a soft connection method, which can effectively buffer the impact and vibration caused by external factors, greatly reduce the possibility of displacement of the measuring device relative to the pipeline, and improve the accuracy and stability of the measured data. The soft connection method makes the installation and adjustment of the measuring device more convenient and efficient. The airbag connection only needs to inflate the airbag 6010 in the straight ventilation pipe 6009, which greatly shortens the installation time and labor costs. The inflation volume of the airbag 6010 can be flexibly controlled and adjusted. When facing pipelines of different diameters, the airbag can be flexibly adapted by adjusting the inflation volume, showing good versatility and adaptability. In addition, the airbag 6010 is used to support the inner wall of the pipeline 8, which can save external positioning space compared to the traditional external support method, and is more adaptable to the measurement environment with limited external space.

[0066] In addition, the outer wall of the airbag 6010 is evenly coated with a rubber layer composed of butyl rubber or latex, which forms an all-round protection for the airbag 6010 and ensures that the airbag 6010 has wear resistance and puncture resistance. Therefore, the airbag 6010 will not be punctured and leak the internal gas regardless of whether it is in contact with the inner wall of the pipe 8 for support or in direct contact and friction in the straight ventilation pipe 6009.

[0067] Main references Figure 5 As shown, the measuring unit 5 also includes a mounting assembly; the mounting assembly includes two first mounting seats 5001 mounted on the supporting unit 2, a limiting rod 5002 is installed between the two first mounting seats 5001, and the cross-sectional shape of the limiting rod 5002 is a regular polygon. For example, the cross-sectional shape of the limiting rod 5002 is set to be an equilateral triangle, a regular quadrilateral, a regular hexagon, etc. By utilizing the characteristics of the regular polygon, it can be ensured that the components mounted on the limiting rod 5002 only move in the horizontal direction and will not flip relative to the limiting rod 5002. Two second mounting seats 5003 are symmetrically installed on the supporting unit 2, and the top of each second mounting seat 5003 is rotatably connected to a first rotating shaft 5016 through a bearing, and the first rotating shaft 5016 can be caused to rotate relative to the second mounting seat 5003 under the action of external force.

[0068] Main references Figure 5 and Fig. 9 As shown, the measuring unit 5 also includes a displacement component; the displacement component includes two moving rods 5004 arranged to move in the horizontal direction, the moving rod 5004 is slidably mounted on the limit rod 5002, and under the limiting action of the polygonal limit rod 5002, it is ensured that the moving rod 5004 only moves in the horizontal direction along the limit rod 5002, and will not flip relative to the limit rod 5002, the moving rod 5004 is L-shaped, and a moving frame 5005 is vertically installed at the end of the moving rod 5004, the moving frame 5005 is provided with an intermediate through cavity, and a second sliding pin 5006 is slidably embedded in the moving frame 5005, and the movement of the moving rod 5004 can drive the second sliding pin 5006 to move along the through cavity of the moving frame 5005.

[0069] Main references Figures 4 to 7As shown, the measuring unit 5 also includes a linkage component; the linkage component includes a fixed rod 5007 fixedly installed on the rear side of the second sliding pin 5006, and also includes a swing rod 5008 installed on the rear end of the first rotating shaft 5016, the first rotating shaft 5016 is installed at the center position of the swing rod 5008, the fixed rod 5007 is fixedly connected to the swing rod 5008, and the two ends of the swing rod 5008 are respectively rotatably connected to one end of a linkage rod 5009 through a pin shaft, and the two linkage rods 5009 are centrally symmetrically arranged relative to the swing rod 5008; when the moving rod 5004 moves along the outer wall of the limiting rod 5002 to the middle position of the limiting rod 5002, the moving rod 5004 drives the moving frame 5005 to move, and drives the second sliding pin 5006 to move along the inner cavity of the moving frame 5005, so as to prompt the fixed rod 5007 to drive the swing rod 5008 to rotate around the first rotating shaft 5016.

[0070] Main references Figures 5 to 7 As shown, the measuring unit 5 also includes a measuring assembly; the measuring assembly includes four moving seats 5010, each moving seat 5010 is slidably sleeved on the scale 4, the other end of each linkage rod 5009 is rotatably connected to the side wall of each moving seat 5010 through a pin, two moving seats 5010 form a group, one end of a telescopic rod 5011 is vertically installed on the opposite side of the two moving seats 5010 in each group, a displacement block 5013 is installed on the other end of the telescopic rod 5011, a spring 5012 is sleeved on the telescopic rod 5011, and the two ends of the spring 5012 are respectively connected to the moving seat 5010 and the displacement block 5013, and the displacement block 5013 is connected to the cursor 5015;

[0071] When the second sliding pin 5006 moves, it can prompt the fixed rod 5007 to drive the swing rod 5008 to rotate around the first rotating shaft 5016. At this time, the two groups of connecting rods 5009 rotatably connected on each swing rod 5008 respectively drive the two moving seats 5010 to gradually approach along the outer wall of the scale 4, that is, the left and right groups of moving seats 5010 are respectively approached, so as to push the left and right groups of telescopic rods 5011, the displacement block 5013, and the cursor 5015 to approach and fit the inner and outer walls of the pipe 8 respectively, and maintain this moving state until the springs 5012 at each position are forced to compress and produce elastic deformation, so as to ensure that the cursors 5015 at each position are closely fitted to the inner and outer walls of the pipe 8, see Figure 2 As shown, at this time, L1 is the inner diameter of the pipe 8, L2 is the outer diameter of the pipe 8, and L3 of the left and right groups are the pipe thickness dimensions on the left and right sides of the pipe 8, thereby being able to simultaneously measure the inner diameter, outer diameter, and thickness of the pipe 8 through a single measurement;

[0072] In the present invention, by unifying the driving force, the two groups of cursors 5015 responsible for thickness detection on the left and right sides can be driven simultaneously to accurately and synchronously clamp the inner and outer walls of the pipe 8, which not only achieves efficient conservation in the use of power energy and avoids energy waste caused by multiple independent drives, but also ensures a high degree of synchronization and uniformity in the thickness measurement process on the left and right sides. Compared with the traditional step-by-step measurement method, the synchronous clamping measurement greatly reduces the data errors on the left and right sides caused by factors such as measurement time difference and inconsistent operation, and significantly improves the accuracy and reliability of the measurement results.

[0073] In addition, in the present invention, by providing a telescopic rod 5011 and a spring 5012, even if the thickness of the left and right sides of the pipe 8 is different, through the elastic deformation between the telescopic rod 5011 and the spring 5012, the displacement block 5013, the arc-shaped avoidance portion 5014, and the cursor 5015 at each position can still be made to fit the side wall of the pipe 8, thereby realizing data measurement of different thicknesses on the left and right sides of the pipe 8, that is, the present invention ensures that no matter whether the thickness of the left and right sides of the pipe 8 is the same or different, the cursor 5015 can always maintain a close fit with the side wall of the pipe 8, thereby accurately and correctly displaying the actual thickness values ​​of the left and right sides of the pipe 8, thereby coping with various complex and changeable detection and use requirements such as whether the thickness of the pipe 8 is qualified or unqualified.

[0074] Specific reference Figure 7 As shown, arc-shaped avoidance portions 5014 are respectively provided at the upper and lower ends of the displacement block 5013. The setting of the arc-shaped avoidance portion 5014 can prevent the arc-shaped avoidance portion 5014 from contacting the side wall of the pipe 8, which may cause the cursor 5015 to be unable to fit against the side wall of the pipe 8. That is, through the setting of the arc-shaped avoidance portion 5014, it is ensured that the cursor 5015 moves along the scale 4 to fit against the side wall of the pipe 8 without hindrance, thereby ensuring normal measurement. The cursor 5015 is inclined and contracted from the outside toward the direction close to the side wall of the pipe 8. The prism-shaped cursor 5015 is adopted to ensure that the side wall of the cursor 5015 is completely in contact with the inner wall of the pipe 8, thereby avoiding the edge of the cursor 5015 affecting the degree of fit between the cursor 5015 and the inner wall of the pipe 8, thereby ensuring the accuracy of the cursor 5015 in detecting various dimensions of the pipe 8.

[0075] When connecting traditional measuring devices to pipelines, the hard connection method of screws and nuts is used. In the actual measurement environment, it is easy to be disturbed by external factors such as equipment vibration, resulting in displacement between the measuring device and the pipeline. The displacement will directly cause the change of the measurement benchmark, which will cause deviations in the measurement data, seriously affecting the accuracy and reliability of the measurement, and cannot meet the high-precision measurement requirements. For more information, please refer to Figure 4 , Figures 10 to 13As shown, the inner support unit 6 also includes a first hollow cylinder 6001, which is a hollow sealed body. A push piece 6002 is slidably embedded in the inner cavity of the first hollow cylinder 6001. The push piece 6002 is displaced forward and backward along the inner cavity of the first hollow cylinder 6001 to achieve inflation or deflation of each airbag 6010, thereby achieving the airbag 6010 adhering to the inner wall of the pipe 8 for support, or the airbag 6010 is separated from the inner wall of the pipe 8 to achieve the measurement device in the pipe 8. The disassembly at the place greatly simplifies the assembly steps and time of the measuring device and the pipeline 8. A push rod 6003 is vertically installed on the front side of the push piece 6002. The front end of the push rod 6003 slides forward and extends out of the outer wall of the first hollow cylinder 6001. An airtight pad 6004 is installed on the front side wall of the first hollow cylinder 6001. The airtight pad 6004 is arranged between the push rod 6003 and the first hollow cylinder 6001. The rear side of the first hollow cylinder 6001 is connected to a U-shaped ventilation pipe 6000. 5, and the other end of the U-shaped ventilation tube 6005 is connected to the second hollow cylinder 6006. The airbag 6010 is arranged on the rear side of the scale 4 so as to extend into the inner cavity of the pipe 8 to support the inner wall of the pipe 8. The U-shaped ventilation tube 6005 can leave enough space for the relative displacement of the measuring unit 5 on the scale 4 without interfering with the measurement of the measuring unit 5. The second hollow cylinder 6006 is a hollow sealed body. The side wall of the second hollow cylinder 6006 is connected to a plurality of straight ventilation tubes 6009 along the circumferential direction. The number of straight ventilation tubes 6009 and the airbags 6010 are the same and the positions correspond, that is, the number of straight ventilation tubes 6009 is also three, and each straight ventilation tube 6009 is connected to the inner cavity of the airbag 6010; two adjacent airbags 6010 are arranged equidistantly, which can realize the uniform internal support of the measuring device in the pipe 8 and ensure the uniformity and stability of the support of multiple groups of airbags 6010 in the inner cavity of the pipe 8.

[0076] When the driving unit 3 is used to drive the inner support unit 6 to position the inner wall of the pipe 8, the driving unit 3 drives the push rod 6003 to push the push piece 6002 to move backward along the inner cavity of the first hollow cylinder 6001, so as to push the gas in the first hollow cylinder 6001 along the U-shaped ventilation tube 6005, the second hollow cylinder 6006, and the straight ventilation tube 6009 to the airbags 6010 at the corresponding positions, so as to realize the inflation of the airbag 6010. During the inflation process, the airbag 6010 gradually fits the inner wall of the pipe 8, so as to realize the inner support positioning of the pipe 8 by the airbag 6010, so as to ensure that during the subsequent measurement process, the pipe 8 will not rotate along the outer wall of the supporting roller 7003, nor will it move in the front-to-back direction along the supporting roller 7003, so as to ensure that the pipe 8 always remains stable during the measurement process, so as to ensure the accuracy of the measurement result.

[0077] The present invention realizes a soft connection between the measuring device and the pipeline by inflating the airbag 6010 and supporting it on the inner wall of the pipeline. The soft connection characteristic of the airbag 6010 can effectively buffer the impact force and vibration caused by external factors, greatly reduce the possibility of displacement of the measuring device relative to the pipeline, and improve the accuracy and stability of the measured data. In addition, the soft connection method makes the installation and adjustment of the measuring device more convenient and efficient. Compared with the hard connection that requires precise thread alignment and tightening operations, the airbag connection only needs to inflate the airbag 6010 in the straight ventilation pipe 6009, which greatly shortens the installation time and labor costs; in addition, the inflation amount of the airbag 6010 can be flexibly controlled and adjusted. When facing pipelines of different diameters, the airbag can be flexibly adapted by adjusting the inflation amount, showing good versatility and adaptability, avoiding the complexity of hard connection equipped with screws and nuts of various specifications to meet the connection requirements of different diameters, and further reducing the complexity and cost of the equipment.

[0078] Also, see Figures 10 to 13 As shown, the inner support unit 6 also includes a support assembly for supporting the airbag 6010; the support assembly includes a support rod 6007 fixedly installed on the side wall of the second hollow cylinder 6006, and an arc-shaped support plate 6008 is fixedly installed on the end of the support rod 6007 away from the side wall of the second hollow cylinder 6006, and the airbag 6010 is arranged in the inner cavity of the arc-shaped support plate 6008, and the arc-shaped support plate 6008 is arranged to be arc-shaped, and the curvature of the arc-shaped support plate 6008 is adapted to the curvature of the outer wall of the airbag 6010. The airbag 6010 can be supported by the arc-shaped support plates 6008 at various positions to ensure that the airbag 6010 after deflation can still be supported in the arc-shaped support plate 6008 and will not fall off, thereby avoiding the situation where the airbag 6010 falls off and is entangled after deflation, which is more conducive to the direct application of the next measurement equipment.

[0079] Main references Figures 1 to 5 , Figure 8 , Fig.12As shown, the support unit 2 includes a column 2001 vertically mounted on the bottom plate 1, a horizontal plate 2002 is vertically mounted on the top of the column 2001, a front extension platform 2003 is mounted on the front side of the horizontal plate 2002, a rear extension platform 2004 is mounted on the rear side of the horizontal plate 2002, a first support frame 2005 is vertically mounted on the top of the rear extension platform 2004, a first support sleeve 2006 is mounted on the top of the first support frame 2005, a second support frame 2010 is vertically mounted on the horizontal plate 2002, and a second support sleeve 2011 is mounted on the top of the second support frame 2010. Through the arrangement of the above components, a stable support effect can be provided for the installation of other components; wherein, the first mounting seat 5001 is arranged Installed on the transverse plate 2002, that is, the transverse plate 2002 provides an installation position and support for the installation of the first mounting seat 5001, the second mounting seat 5003 is vertically installed on the transverse plate 2002, and the second mounting seat 5003 is stably installed above the transverse plate 2002. The first support sleeve 2006 is sleeved and positioned on the U-shaped ventilation pipe 6005, and the U-shaped ventilation pipe 6005 is supported and positioned by the first support sleeve 2006, and the U-shaped position of the U-shaped ventilation pipe 6005 and the scale 4 can be avoided. The second support sleeve 2011 is sleeved and positioned on the first hollow cylinder 6001, and the first hollow cylinder 6001 is stably supported by the second support sleeve 2011;

[0080] In addition, see Figure 8 and Fig.12 As shown, a positioning assembly for positioning the scale 4 is provided at the top of the first support sleeve 2006; the positioning assembly includes a support seat 2007 fixedly mounted on the top of the first support sleeve 2006, a bracket 2008 is installed at the top of the support seat 2007 in the horizontal direction, the bracket 2008 is provided with a through cavity from left to right, a positioning pin 2009 is threadedly provided through the front side wall of the bracket 2008, the scale 4 is placed in the bracket 2008, and the rear end of the positioning pin 2009 is against the front side wall of the scale 4, and the scale The ruler 4 is arranged symmetrically with respect to the vertical center line of the bracket 2008; the ruler 4 is passed through all the movable seats 5010, the displacement block 5013, and the vernier 5015, and the ruler 4 is placed in the inner cavity of the bracket 2008, so that the ruler 4 is arranged symmetrically with respect to the bracket 2008, and the positioning pin 2009 is rotated to make its end abut against the front side wall of the ruler 4, so that the ruler 4 is centered in the inner cavity of the bracket 2008, that is, the ruler 4 can be adjusted to have its center position coincide with the center position of the entire device.

[0081] Main references Figure 5As shown, the driving unit 3 includes a cylinder 3001 installed on the front extension platform 2003, the output end of the cylinder 3001 is connected to a moving plate 3002, the moving plate 3002 is symmetrically and tiltedly installed with two driving rods 3003, each driving rod 3003 is respectively provided with a slide groove 3004, a first sliding pin 3005 is slidably embedded in the inner cavity of the slide groove 3004, and a vertical plate 3006 is vertically installed at the middle of the top of the moving plate 3002; wherein the first sliding pin 3005 is fixedly connected to the moving rod 5004, and the vertical plate 3006 is fixedly connected to the push rod 6003;

[0082] When the movable plate 3002 drives the two driving rods 3003 on both sides to move backward, the first sliding pin 3005 is prompted to move along the inner cavity of the slide groove 3004, so as to prompt the movable rod 5004 to move along the outer wall of the limiting rod 5002 to the middle position of the limiting rod 5002. At this time, the movable rod 5004 drives the movable frame 5005 to move, and drives the second sliding pin 5006 to move along the inner cavity of the movable frame 5005, so as to prompt the fixed rod 5007 to drive the swing rod 5008 to rotate around the first rotating shaft 5016. At this time, the two sets of connecting rods 5009 rotatably connected on each swing rod 5008 respectively drive the two movable seats 5010 to gradually approach along the outer wall of the scale 4, ensuring that the cursors 5015 at each position are tightly fitted to the inner and outer walls of the pipe 8, so as to realize the simultaneous measurement of the inner diameter, outer diameter and thickness of the pipe 8.

[0083] Other main references Figure 1 and Figure 3 As shown, a supporting assembly 7 is provided on the base plate 1, and the supporting assembly 7 includes a mounting frame 7001 which is symmetrically arranged relative to the base plate 1, and a second rotating shaft 7002 is rotatably connected to the mounting frame 7001 through a bearing, and a supporting roller 7003 is fixedly installed on the second rotating shaft 7002, and the supporting roller 7003 is rollingly fitted with the outer wall of the pipe 8, and the pipe 8 to be measured is placed on each supporting roller 7003, and the pipe 8 is stably supported on the base plate 1 by two groups of supporting rollers 7003 which are symmetrical on the left and right, and the center of the positioned pipe 8 is set corresponding to the center of the second hollow cylinder 6006 to ensure the accuracy of the reference point of subsequent measurement; the supporting assembly 7 can support the pipe 8, and the pipe 8 can also be rotated along the surface of the supporting roller 7003 manually, so that the size measurement of different circumferential positions of the pipe 8 can be performed, which better meets the measurement requirements of different parts of the pipe 8.

[0084] It is worth noting that the air cylinder 3001 used in the present application is a self-locking air cylinder commonly used on the market, and its output end can stay at any position and be locked; the telescopic rod 5011 is a telescopic rod commonly used on the market, which is composed of two rod bodies that are mutually sleeved, and the total length of the telescopic rod 5011 can be changed under the action of external force; the push piece 6002 can move along the inner cavity of the first hollow cylinder 6001. In order to ensure the relative sealing between the two, a rubber ring can be installed on the annular surface where the push piece 6002 contacts the side wall of the first hollow cylinder 6001. While ensuring that the push piece 6002 can move normally along the inner cavity of the first hollow cylinder 6001, the air tightness between the first hollow cylinder 6001 and the push piece 6002 can also be increased. Thereby ensuring the sealing of the inner cavity of the push piece 6002 on the rear side of the first hollow cylinder 6001. This is the prior art and can be set according to the requirements of the prior art, which will not be elaborated here. In the present invention, by moving the cursor 5015 along the outer wall of the scale 4, the distance between each cursor 5015 can be calculated with the help of the readings on the scale 4. The scale 4 can be set to have a zero scale line on the left, and the readings increase from left to right. The difference in scale values ​​between different positions of each cursor 5015 on the scale 4 is used to calculate the size of each position to obtain the data to be measured. This is the prior art and will not be elaborated or limited here. The above-mentioned existing components will not be limited in model or elaborated too much here.

[0085] The working principle of a water conservancy pipeline measuring device in this embodiment is as follows:

[0086] First, the pipe 8 is positioned: the pipe 8 to be measured is placed on each supporting roller 7003, and the pipe 8 is stably supported on the bottom plate 1 by two groups of supporting rollers 7003 symmetrically on the left and right. The center of the positioned pipe 8 is set corresponding to the center of the second hollow cylinder 6006;

[0087] Adjust the scale 4 to make its center position coincide with the center position of the whole device: insert the scale 4 through all the moving seats 5010, the displacement block 5013, and the cursor 5015, and place the scale 4 in the inner cavity of the bracket 2008, so that the scale 4 is arranged symmetrically with respect to the bracket 2008, rotate the positioning pin 2009 so that its end is against the front side wall of the scale 4, so as to realize the center positioning of the scale 4 in the inner cavity of the bracket 2008;

[0088] The driving unit 3 is used to realize the internal support positioning and measurement of the pipeline 8 at the same time: the output end of the opened cylinder 3001 moves backward, driving the movable plate 3002 to drive the vertical plate 3006 and the driving rod 3003 to move backward synchronously, and the vertical plate 3006 moving backward prompts the internal support unit 6 to perform internal support positioning on the inner wall of the pipeline 8, and the driving rod 3003 moving backward prompts the first sliding pin 3005 to move along the inner cavity of the slide groove 3004, so as to prompt the measuring unit 5 to carry out the measurement work;

[0089] Specifically, the principle of the internal support unit 6 supporting and positioning the inner wall of the pipe 8 by the vertical plate 3006 moving backward is as follows: when the vertical plate 3006 moves backward, the push rod 6003 pushes the push plate 6002 backward along the inner cavity of the first hollow cylinder 6001 to push the gas in the first hollow cylinder 6001 along the U-shaped ventilation pipe 6005, the second hollow cylinder 6006, and the straight ventilation pipe 6009 to the air bags 6010 at the corresponding positions, so as to realize the inflation of the air bags 6010. During the inflation process, the air bags 6010 gradually fit the inner wall of the pipe 8, thereby realizing the inflation of the air bags 6010. The airbag 6010 is now positioned to support the inner side of the pipe 8, ensuring that during the subsequent measurement process, the pipe 8 will not rotate along the outer wall of the supporting roller 7003, nor will it move in the front-to-back direction along the supporting roller 7003, thereby ensuring that the pipe 8 always remains stable during the measurement process to ensure the accuracy of the measurement result; on the contrary, when the airbag 6010 is separated from the inner wall of the pipe 8 after the subsequent use of the device, it is only necessary to slightly move the push piece 6002 toward the front side along the inner cavity of the first hollow cylinder 6001, so that each airbag 6010 can be sunken and separated from the inner wall of the pipe 8, that is, separated from the inner support positioning of the pipe 8;

[0090] Specifically, the principle of causing the measuring unit 5 to carry out the measuring work by the driving rod 3003 moving backward is as follows: when the moving plate 3002 drives the two driving rods 3003 on both sides to move backward, the first sliding pin 3005 is driven to move along the inner cavity of the slide groove 3004, so as to drive the moving rod 5004 to move along the outer wall of the limiting rod 5002 to the middle position of the limiting rod 5002. At this time, the moving rod 5004 drives the moving frame 5005 to move, and drives the second sliding pin 5006 to move along the inner cavity of the moving frame 5005, so as to drive the fixed rod 5007 to drive the swing rod 5008 The first rotating shaft 5016 is used as the axis for rotation. At this time, the two groups of linkage rods 5009 rotatably connected on each swing rod 5008 respectively drive the two moving seats 5010 to gradually approach along the outer wall of the scale 4, that is, the left and right groups of moving seats 5010 are respectively approached to push the left and right groups of telescopic rods 5011, the displacement block 5013, and the cursor 5015 to approach and fit the inner and outer walls of the pipe 8 respectively, and maintain this moving state until the springs 5012 at each position are forced to compress and produce elastic deformation, so as to ensure that the cursors 5015 at each position are closely fitted to the inner and outer walls of the pipe 8, see Figure 2 As shown, at this time, L1 is the inner diameter of the pipe 8, L2 is the outer diameter of the pipe 8, and L3 of the left and right groups are the pipe thickness dimensions on the left and right sides of the pipe 8, thereby being able to simultaneously measure the inner diameter, outer diameter, and thickness of the pipe 8 through a single measurement;

[0091] In summary, the present invention adopts the same measuring device and utilizes a single measuring step, which can simultaneously meet the detection of the three linear dimensions of the inner diameter, outer diameter and thickness of the pipeline 8. Compared with the traditional equipment that can only meet the inner diameter measurement of the pipeline at a time, it can more efficiently and comprehensively meet the comprehensive needs of pipeline size measurement during actual measurement, and the entire measurement process is based on a stable and unified reference point, which fundamentally eliminates the errors caused by inconsistent reference points, thereby ensuring the high accuracy and reliability of the obtained inner diameter, outer diameter and thickness data, and can also improve the measurement efficiency, reduce the measurement time and labor cost of multiple equipment replacements, and in addition, through a single measurement operation, the thickness data of the left and right sides of the pipeline 8 can be obtained at one time, and then the direct comparison and analysis of the thickness data on the left and right sides can be realized, so as to obtain an accurate conclusion on whether the thickness of the left and right sides of the pipeline 8 is consistent, so as to accurately judge whether the thickness of the left and right side walls of the pipeline 8 is uniform and uniform; in addition, the present invention adopts a soft connection method, which can effectively buffer the impact and vibration caused by external factors, and greatly reduce the possibility of displacement of the measuring device relative to the pipeline. The utility model discloses a kind of measuring device, which can improve the accuracy and stability of the measured data, and the soft connection method makes the installation and adjustment of the measuring device more convenient and efficient. The airbag connection only needs to inflate the airbag 6010 in the straight ventilation pipe 6009, which greatly shortens the installation time and labor cost. The inflation amount of the airbag 6010 can be flexibly controlled and adjusted. When facing pipes with different diameters, the airbag can be flexibly adapted by adjusting the inflation amount, showing good versatility and adaptability. A support function for the airbag 6010 is also provided to ensure that the deflated airbag 6010 can still be supported in the arc-shaped support plate 6008 and will not fall, so as to avoid the situation that the airbag 6010 falls and is entangled after being deflated. Moreover, the present invention realizes the two functions of internal support positioning and pipeline measurement through the driving unit 3, so that the structure of the whole measuring device is more compact and integrated. Compared with the traditional measuring equipment which needs multiple independent driving and control components to realize different functions respectively, the unnecessary redundant setting of components is reduced. The compact structure makes the measuring device easier to install and operate in a limited space, and improves the adaptability of the equipment to different working environments.

[0092] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water conservancy pipeline measuring device, comprising a pipeline (8), characterized in that: The apparatus further comprises a base plate (1), wherein a support unit (2) is arranged on the base plate (1), wherein a drive unit (3), a scale (4), a measuring unit (5), and an inner support unit (6) are arranged on the support unit (2), wherein the measuring unit (5) is used to measure the inner diameter, outer diameter, and thickness of the pipe (8), and the inner support unit (6) is used to position the inner support of the pipe (8), and the drive unit (3) drives the measuring unit (5) and the inner support unit (6) to function simultaneously; The measuring unit (5) comprises four cursors (5015), the four cursors (5015) being slidably mounted on the scale (4), two cursors (5015) forming a group, the two groups of cursors (5015) being symmetrically arranged with the center line of the scale (4) as an axis, and the two cursors (5015) in each group respectively moving in opposite directions or towards each other in a horizontal direction along the scale (4); The inner support unit (6) comprises a plurality of airbags (6010), wherein two adjacent airbags (6010) are equidistantly arranged along the inner wall of the pipe (8) in the circumferential direction. The plurality of airbags (6010) in an inflated state fit closely to the inner wall of the pipe (8) to achieve inner support for the pipe (8), and the plurality of airbags (6010) in a deflated state are detached from the inner wall of the pipe (8) to eliminate the inner support effect on the pipe (8).

2. A water conservancy pipeline measuring device according to claim 1, characterized in that: The measuring unit (5) further comprises a mounting assembly; The mounting assembly comprises two first mounting seats (5001) mounted on the support unit (2), a limit rod (5002) being mounted between the two first mounting seats (5001), the cross-sectional shape of the limit rod (5002) being a regular polygon, and two second mounting seats (5003) being mounted on the support unit (2) in a bilaterally symmetrical manner, the top end of each second mounting seat (5003) being rotatably connected to a first rotating shaft (5016).

3. A water conservancy pipeline measuring device according to claim 2, characterized in that: The measuring unit (5) further comprises a displacement component; The displacement assembly comprises two moving rods (5004) arranged to move in a horizontal direction, the moving rods (5004) being slidably sleeved on the limiting rod (5002), the moving rods (5004) being L-shaped, a moving frame (5005) being vertically mounted at the end of the moving rod (5004), the moving frame (5005) being provided with a middle through cavity, and a second sliding pin (5006) being slidably embedded in the moving frame (5005).

4. A water conservancy pipeline measuring device according to claim 3, characterized in that: The measuring unit (5) further comprises a linkage component; The linkage assembly comprises a fixed rod (5007) fixedly mounted on the rear side of the second sliding pin (5006), and also comprises a swing rod (5008) mounted on the rear end of the first rotating shaft (5016), the first rotating shaft (5016) being mounted at the center position of the swing rod (5008), the fixed rod (5007) being fixedly connected to the swing rod (5008), and two ends of the swing rod (5008) being rotatably connected to one end of a linkage rod (5009), and the two linkage rods (5009) are arranged in a centrally symmetrical manner relative to the swing rod (5008).

5. A water conservancy pipeline measuring device according to claim 4, characterized in that: The measuring unit (5) further comprises a measuring component; The measuring assembly comprises four moving seats (5010), each of the moving seats (5010) is slidably sleeved on the scale (4), the other end of each of the linkage rods (5009) is rotatably connected to the side wall of each of the moving seats (5010), two of the moving seats (5010) form a group, one end of a telescopic rod (5011) is vertically mounted on opposite sides of the two moving seats (5010) in each group, a displacement block (5013) is mounted on the other end of the telescopic rod (5011), a spring (5012) is sleeved on the telescopic rod (5011), and the two ends of the spring (5012) are respectively connected to the moving seat (5010) and the displacement block (5013), and the displacement block (5013) is connected to the cursor (5015).

6. A water conservancy pipeline measuring device according to claim 5, characterized in that: The upper and lower ends of the displacement block (5013) are respectively provided with arc-shaped avoidance portions (5014), and the cursor (5015) is arranged to be inclined and contracted from the outside toward the direction close to the side wall of the pipe (8).

7. A water conservancy pipeline measuring device according to claim 6, characterized in that: The inner support unit (6) further comprises a first hollow cylinder (6001), the first hollow cylinder (6001) being a hollow sealed body, a push sheet (6002) being slidably embedded in the inner cavity of the first hollow cylinder (6001), a push rod (6003) being vertically mounted on the front side of the push sheet (6002), a front end of the push rod (6003) slidingly extending forwardly out of the outer wall of the first hollow cylinder (6001), an airtight pad (6004) being mounted on the front side wall of the first hollow cylinder (6001), the airtight pad (6004) being arranged between the push rod (6003) and the first hollow cylinder (6001). Between the core tubes (6001), the rear side of the first hollow tube (6001) is connected to one end of a U-shaped ventilation tube (6005), and the other end of the U-shaped ventilation tube (6005) is connected to a second hollow tube (6006), the second hollow tube (6006) is a hollow sealed body, and the side wall of the second hollow tube (6006) is circumferentially connected and provided with a plurality of straight ventilation tubes (6009), the number of the straight ventilation tubes (6009) and the airbag (6010) are the same and the positions correspond, and each of the straight ventilation tubes (6009) is connected to the inner cavity of the airbag (6010).

8. A water conservancy pipeline measuring device according to claim 7, characterized in that: The inner support unit (6) further comprises a support assembly for supporting the airbag (6010); The support assembly includes a support rod (6007) fixedly mounted on the side wall of the second hollow cylinder (6006), an arc-shaped support plate (6008) fixedly mounted on one end of the support rod (6007) away from the side wall of the second hollow cylinder (6006), the airbag (6010) is arranged in the inner cavity of the arc-shaped support plate (6008), and the arc-shaped support plate (6008) is arranged to be arc-shaped, and the curvature of the arc-shaped support plate (6008) is adapted to the curvature of the outer wall of the airbag (6010).

9. A water conservancy pipeline measuring device according to claim 8, characterized in that: The support unit (2) comprises a column (2001) vertically mounted on the bottom plate (1); a horizontal plate (2002) is vertically mounted on the top of the column (2001); a front extension platform (2003) is mounted on the front side of the horizontal plate (2002); a rear extension platform (2004) is mounted on the rear side of the horizontal plate (2002); a first support frame (2005) is vertically mounted on the top of the rear extension platform (2004); a first support sleeve (2006) is mounted on the top of the first support frame (2005); a second support frame (2010) is vertically mounted on the horizontal plate (2002); and a second support sleeve (2011) is mounted on the top of the second support frame (2010); The first mounting seat (5001) is mounted on the transverse plate (2002), the second mounting seat (5003) is vertically mounted on the transverse plate (2002), the first supporting sleeve (2006) is sleeved and positioned on the U-shaped ventilation pipe (6005), and the second supporting sleeve (2011) is sleeved and positioned on the first hollow cylinder (6001).

10. A water conservancy pipeline measuring device according to claim 9, characterized in that: The driving unit (3) comprises a cylinder (3001) mounted on the front extension platform (2003); the output end of the cylinder (3001) is connected to a moving plate (3002); two driving rods (3003) are symmetrically and tiltedly mounted on the moving plate (3002); each driving rod (3003) is provided with a slide groove (3004); a first sliding pin (3005) is slidably embedded in the inner cavity of the slide groove (3004); and a vertical plate (3006) is vertically mounted in the middle of the top end of the moving plate (3002); Wherein, the first sliding pin (3005) is fixedly connected to the moving rod (5004), and the vertical plate (3006) is fixedly connected to the pushing rod (6003).

Images