Distance measuring execution device

The automatic measurement method using the distance measuring actuator solves the problems of large errors and low efficiency in traditional measurement methods, achieving high-precision and high-efficiency distance measurement and ensuring the installation schedule of the hydro-generator unit.

CN224593919UActive Publication Date: 2026-08-04中国水利水电第七工程局有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
中国水利水电第七工程局有限公司
Filing Date
2025-07-29
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Traditional measurement methods result in large errors in measuring the distance between the center of the water distribution ring pipe and the flange face of the branch pipe, are cumbersome to operate, and affect the installation efficiency of the bucket turbine generator set.

Method used

The device employs a distance measuring actuator, including a mounting base, a support frame, a power source, and a distance measuring instrument. The power source drives the support frame to move up and down, while the distance measuring instrument automatically measures the round-trip time of light to calculate the distance, thereby improving measurement accuracy and efficiency.

Benefits of technology

It enables high-precision automatic measurement of the distance between the center of the water distribution ring pipe and the flange face of the branch pipe, thus improving the installation efficiency of the hydro-generator unit.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to a distance measuring device, including a mounting base; a support frame, which is movably mounted on the mounting base; a power source, which is mounted on the mounting base and connected to the support frame; a mounting bracket, which is mounted on one end of the support frame; and a distance measuring instrument, which is mounted on the mounting bracket. Based on this, the distance measuring instrument can emit a measuring light beam towards a measuring line. By calculating the time it takes for the measuring light beam to travel to and from the measuring line, the distance value can be calculated. Compared to the traditional manual measurement method using a piano string and measuring tape, this solution can automatically determine the distance from the center of the water distribution ring pipe to the flange face of the water distribution ring pipe branch pipe, with high accuracy and efficiency, which helps to ensure the installation schedule of the water turbine generator unit.
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Description

Technical Field

[0001] This application relates to the technical field of water distribution ring pipe construction surveying, and in particular to a distance measuring execution device. Background Technology

[0002] The distribution ring pipe is a core component of a bucket turbine generator set. As a key pressure-bearing component located between the inlet ball valve and the turbine runner, its main function is to uniformly and symmetrically introduce water into each nozzle, driving the runner to rotate stably. With continuous advancements in domestic technology, the size and weight of the distribution ring pipe are constantly increasing, as is the distance between the center of the distribution ring pipe and its measuring surface. In existing technology, there is a 68.4° angle between the center of the distribution ring pipe and the flange face of its branch pipes. The traditional measurement method uses the center of the distribution ring pipe as a reference, drawing multiple piano lines parallel to the flange faces of each branch pipe, and then using a measuring tape to measure the straight-line distance from the branch pipe flange face to these piano lines.

[0003] However, the manual measurement method using piano wire and measuring tape is prone to increasing measurement errors as the measurement distance increases. Furthermore, the steps of setting up the piano wire and pulling the measuring tape are cumbersome, which reduces measurement efficiency and greatly restricts the installation period of the water turbine generator set. Utility Model Content

[0004] Therefore, it is necessary to provide a ranging execution device to address the problems of large measurement errors and low measurement efficiency in traditional technologies.

[0005] This application proposes a ranging execution device, which includes:

[0006] Mounting base;

[0007] A support frame, which is vertically and movably mounted on the mounting base;

[0008] A power source, which is mounted on the mounting base and connected to the support frame in a transmission manner;

[0009] Mounting bracket, the mounting bracket being installed at one end of the support frame; and

[0010] A rangefinder, which is mounted on the mounting bracket.

[0011] This distance measuring device is used to measure the distance between the center of the distribution ring pipe and the flange face of the distribution ring pipe branch. In practical use, the mounting base is installed at the center of the distribution ring pipe. Then, the support frame and power source are connected to the mounting base, allowing the power source to drive the support frame to move up and down relative to the mounting base. This ensures that the distance measuring instrument on the mounting frame is horizontally aligned with the measuring line on the flange face of the distribution ring pipe branch. The distance measuring instrument then emits a measuring light beam towards the measuring line. By calculating the time it takes for the measuring light beam to travel to and from the measuring line, the distance value can be calculated. Compared to the traditional manual measurement method using a piano wire and measuring tape, this solution can automatically measure the distance from the center of the distribution ring pipe to the flange face of the distribution ring pipe branch, with high accuracy and efficiency, helping to ensure the installation schedule of the bucket turbine generator unit.

[0012] The technical solution of this application will be further described below:

[0013] In one embodiment, the mounting base includes a support body and a support shaft. The support body is used to install to the center position of the water distribution ring pipe, the support shaft is vertically mounted on the support body, and the support frame is movably and vertically mounted on the support shaft.

[0014] In one embodiment, the mounting base further includes a guide sleeve, which is sleeved on the outside of the support shaft and can move up and down relative to the support shaft. The support frame is connected and fixed to the outer wall of the guide sleeve.

[0015] In one embodiment, the power source includes a carrier plate, a drive mechanism, a drum, and a wire rope. The carrier plate is mounted on the top of the support shaft, the drive mechanism is mounted on the carrier plate, the drum is rotatably mounted on the carrier plate, the drive mechanism is drivenly connected to the drum, one end of the wire rope is fixed to the drum and wound around the outer wall of the drum, and the other end of the wire rope is drivenly connected to the support frame.

[0016] In one embodiment, the support frame includes a balance arm and a measuring arm. One end of the balance arm is connected to the support shaft of the mounting base, and the other end of the balance arm extends away from the mounting frame. One end of the measuring arm is disposed on the support shaft of the mounting base and connected to the balance arm, and the other end of the measuring arm extends away from the balance arm and is connected to the mounting frame.

[0017] In one embodiment, the support frame further includes a counterweight mounted at the end of the balance arm away from the measuring arm.

[0018] In one embodiment, the support frame further includes a friction-reducing sleeve, which is fitted over the support shaft of the mounting base, and the balance arm and the measuring arm are both connected to the friction-reducing sleeve.

[0019] In one embodiment, both the balance arm and the measuring arm include multiple steel frames and a reinforcing plate, with the multiple steel frames arranged at circumferential intervals, and the reinforcing plate connected and fixed to all the steel frames.

[0020] In one embodiment, the mounting bracket includes a connecting plate and a mounting plate, the connecting plate being connected to the end of the measuring arm away from the mounting base, the mounting plate being mounted on the end of the connecting plate, and the rangefinder being mounted on the mounting plate.

[0021] In one embodiment, the mounting plate is inclined to the connecting plate; or, the mounting plate is rotatably mounted to the connecting plate via a rotating member, so that the angle of the rangefinder mounted on the mounting plate is adjustable. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is an isometric structural schematic diagram of a ranging actuator according to one embodiment.

[0025] Figure 2 This is a side view of the ranging actuator.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100. Distance measuring actuator; 10. Mounting base; 11. Support body; 12. Support shaft; 13. Guide sleeve; 20. Support frame; 21. Balance arm; 22. Measuring arm; 23. Counterweight; 24. Friction reducing sleeve; 20a. Steel frame; 20b. Reinforcing plate; 30. Power source; 31. Carrier plate; 32. Drive mechanism; 33. Drum; 34. Wire rope; 40. Mounting frame; 41. Connecting plate; 42. Mounting plate; 50. Distance measuring instrument. Detailed Implementation

[0028] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0030] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0034] See Figure 1 and Figure 2 The present application illustrates a ranging execution device 100, which includes a mounting base 10, a support frame 20, a power source 30, a mounting frame 40, and a rangefinder 50.

[0035] Optionally, the rangefinder 50 may specifically be, but is not limited to, a laser rangefinder 50.

[0036] The support frame 20 is movable and height-adjustable on the mounting base 10; the power source 30 is mounted on the mounting base 10 and is connected to the support frame 20 via transmission; the mounting bracket 40 is mounted on one end of the support frame 20; and the rangefinder 50 is mounted on the mounting bracket 40.

[0037] In summary, implementing the technical solution of this embodiment will achieve the following beneficial effects: The distance measuring execution device 100 of this solution is used in applications that measure the distance between the center of the water distribution ring pipe and the flange face of the branch pipe of the water distribution ring pipe. In specific use, the mounting base 10 is installed at the center of the water distribution ring pipe, and then the support frame 20 and the power source 30 are connected to the mounting base 10 respectively, so that the power source 30 can drive the support frame 20 to move up and down relative to the mounting base 10, so that the distance measuring instrument 50 on the mounting frame 40 can be horizontally aligned with the measuring line on the flange face of the branch pipe of the water distribution ring pipe. On this basis, the distance measuring instrument 50 can emit measuring light to the measuring line. By calculating the time taken for the measuring light to travel to and from the measuring line, the distance value can be calculated. Compared with the traditional manual measurement method of piano wire + tape measure, this solution can automatically complete the distance value from the center of the water distribution ring pipe to the flange face of the branch pipe of the water distribution ring pipe, and the measurement accuracy is high and the measurement efficiency is high, which helps to ensure the installation period of the water turbine generator set.

[0038] It should be noted that since water distribution ring pipes of different specifications and sizes generally have different pipe diameters, when the water distribution ring pipes are installed horizontally (i.e., the center line of the pipe is on a horizontal plane), the height of their flange faces is different. Therefore, it is necessary and practical to configure a liftable and movable support frame 20 to achieve flexible height adjustment of the rangefinder 50.

[0039] Please continue reading. Figure 1 and Figure 2 In one embodiment, the mounting base 10 includes a support body 11 and a support shaft 12. The support body 11 is used to install to the center position of the water distribution ring pipe, the support shaft 12 is vertically mounted on the support body 11, and the support frame 20 is movably and vertically mounted on the support shaft 12.

[0040] The support body 11 is used to mount the positioning support shaft 12. The support body 11 can be installed on the ground or surrounding mechanism at the center of the water distribution ring pipe by at least one of the following methods: screw connection, snap connection, welding, etc. The support shaft 12 is installed vertically to mount the support frame 20 and can provide the travel distance required for the lifting and moving of the support frame 20.

[0041] Optionally, the support body 11 and the support shaft 12 can be an integral structure or they can be detached and assembled, whichever you prefer.

[0042] Furthermore, based on the above embodiments, the mounting base 10 also includes a guide sleeve 13. The guide sleeve 13 is sleeved on the outside of the support shaft 12 and can move up and down relative to the support shaft 12. The support frame 20 is connected and fixed to the outer wall of the guide sleeve 13. By installing the support frame 20 and the guide sleeve 13, the up and down movement of the guide sleeve 13 relative to the support frame 20 can provide guidance and positioning for the support frame 20, thereby improving the smoothness of the up and down movement of the support frame 20.

[0043] For example, the guide sleeve 13 can be one of the following: a metal sleeve, a metal tube, etc.

[0044] Please continue reading. Figure 1 and Figure 2 In another embodiment, the power source 30 includes a carrier plate 31, a drive mechanism 32, a drum 33, and a wire rope 34. The carrier plate 31 is mounted on the top of the support shaft 12, the drive mechanism 32 is mounted on the carrier plate 31, the drum 33 is rotatably mounted on the carrier plate 31, the drive mechanism 32 is connected to the drum 33 in a transmission connection, one end of the wire rope 34 is fixed to the drum 33, and the wire rope 34 is wound and mounted on the outer wall of the drum 33, and the other end of the wire rope 34 is connected to the support frame 20 in a transmission connection.

[0045] During operation, the drive mechanism 32 drives the drum 33 to rotate. When the drum 33 winds and retracts the wire rope 34, the wire rope 34 correspondingly pulls the balance arm 21 and the measuring arm 22 upward, thereby raising the measuring height of the rangefinder 50. Conversely, when the drum 33 releases the wire rope 34, the wire rope 34 correspondingly releases the balance arm 21 and the measuring arm 22 downward, thereby lowering the measuring height of the rangefinder 50. In other words, through the aforementioned drive structure, the height position of the rangefinder 50 can be flexibly adjusted to meet the measurement needs of different sized water distribution ring pipes and branch pipes.

[0046] Optionally, the drive mechanism 32 can be a power combination of a motor and a reducer. The outer wall of the drum 33 has multiple rope grooves arranged side by side to neatly arrange the wire rope 34 wound onto the drum 33, so as to avoid the wire rope 34 from getting tangled and knotted and getting stuck.

[0047] Please continue reading. Figure 1 and Figure 2 In one embodiment, the support frame 20 includes a balance arm 21 and a measuring arm 22. One end of the balance arm 21 is connected to the support shaft 12 of the mounting base 10, and the other end of the balance arm 21 extends away from the mounting frame 40. One end of the measuring arm 22 is disposed on the support shaft 12 of the mounting base 10 and connected to the balance arm 21, and the other end of the measuring arm 22 extends away from the balance arm 21 and is connected to the mounting frame 40.

[0048] The balance arm 21 and the measuring arm 22 achieve weight balance, improving the stability of the support frame 20 installation structure. The measuring arm 22 is used to mount the support mounting frame 40 so that the rangefinder 50 can operate at the required height position.

[0049] It should be noted that the balance arm 21 and the measuring arm 22 can be integrated as one piece or can be detached and assembled, depending on the actual needs.

[0050] To further improve the balance stability of the balance arm 21 and the measuring arm 22, based on the above embodiment, the support frame 20 also includes a counterweight 23, which is installed at the end of the balance arm 21 away from the measuring arm 22.

[0051] As is easily understood, the counterweight 23 is a mass with a certain weight, such as a stone, a metal block, a sandbag, etc. The end of the balance arm 21 is provided with a mounting chamber, in which the counterweight 23 is installed and can be easily installed and removed.

[0052] Furthermore, in one embodiment, the support frame 20 further includes a friction-reducing sleeve 24, which is sleeved on the outside of the support shaft 12 of the mounting base 10, and the balance arm 21 and the measuring arm 22 are both connected to the friction-reducing sleeve 24.

[0053] Specifically, the friction-reducing sleeve 24 is installed outside the guide sleeve 13 of the support shaft 12. Generally speaking, the water distribution ring pipe is usually equipped with multiple water distribution ring pipe branches. Therefore, during measurement, it is necessary to measure the distance of all water distribution ring pipe branches. At this time, the measuring arm 22 needs to be able to drive the rangefinder 50 to rotate horizontally so as to align with the various water distribution ring pipe branches arranged in the circumferential direction. Therefore, the friction-reducing sleeve 24 can reduce the rotational friction resistance and wear between the measuring arm 22 and the support shaft 12.

[0054] It is easy to understand that the power required for the measuring arm 22 (i.e., the support frame 20) to rotate in the horizontal direction can be achieved by installing a power device on the support shaft 12 and connecting the power device to the measuring arm 22 via a transmission.

[0055] Please continue reading. Figure 1 and Figure 2 In one optional embodiment, both the balance arm 21 and the measuring arm 22 include multiple steel frame bodies 20a and reinforcing plates 20b. The multiple steel frame bodies 20a are arranged at intervals along the circumference, and the reinforcing plates 20b are connected and fixed to all the steel frame bodies 20a. For example, the steel frame bodies 20a can be one of steel bars, steel pipes, etc.; they extend horizontally, and the multiple steel frame bodies 20a are arranged circumferentially in a vertical plane. The reinforcing plates 20b are connected to the multiple steel frame bodies 20a to assemble and fix the multiple steel frame bodies 20a. At this time, the multiple steel frame bodies 20a form a skeleton, providing the structural rigidity required by the balance arm 21 and the measuring arm 22. At the same time, compared with solid components, it can achieve the effect of reducing materials and weight, and reducing manufacturing costs.

[0056] In another embodiment, the mounting frame 40 includes a connecting plate 41 and a mounting plate 42. The connecting plate 41 is connected to the end of the measuring arm 22 away from the mounting base 10, and the mounting plate 42 is mounted on the end of the connecting plate 41. The rangefinder 50 is mounted on the mounting plate 42. The connecting plate 41 is connected to the measuring arm 22 of the support frame 20 to achieve assembly and fixation of the mounting frame 40 and the measuring arm 22. The mounting method of the connecting plate 41 and the measuring arm 22 can be at least one of the following, including but not limited to screw connection, snap connection, magnetic connection, welding, and riveting. The mounting plate 42 is mounted on the end of the connecting plate 41, so that the circumference of the mounting plate 42 is unobstructed, thereby providing ample installation space for the rangefinder 50.

[0057] Furthermore, based on the above embodiments, the mounting plate 42 is inclinedly disposed on the connecting plate 41; or, the mounting plate 42 is rotatably mounted on the connecting plate 41 via a rotating component, so that the angle of the rangefinder 50 mounted on the mounting plate 42 is adjustable. In this way, the spatial angle of the rangefinder 50 can be flexibly adjusted to ensure that the measuring head of the rangefinder 50 can be accurately aligned with the measuring line on the flange surface of the water distribution ring pipe, improving the flexibility of use and ensuring the accuracy of the measurement results.

[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A ranging execution device, characterized in that, include: Mounting base; A support frame, which is vertically and movably mounted on the mounting base; A power source, which is mounted on the mounting base and connected to the support frame in a transmission manner; Mounting bracket, the mounting bracket being installed at one end of the support frame; and A rangefinder, which is mounted on the mounting bracket.

2. The ranging execution device according to claim 1, characterized in that, The mounting base includes a support body and a support shaft. The support body is used to install to the center position of the water distribution ring pipe. The support shaft is vertically mounted on the support body. The support frame is movably and vertically mounted on the support shaft.

3. The ranging execution device according to claim 2, characterized in that, The mounting base also includes a guide sleeve, which is sleeved on the outside of the support shaft and can move up and down relative to the support shaft. The support frame is connected and fixed to the outer wall of the guide sleeve.

4. The ranging execution device according to claim 1, characterized in that, The power source includes a carrier plate, a drive mechanism, a drum, and a wire rope. The carrier plate is mounted on the top of the support shaft, the drive mechanism is mounted on the carrier plate, the drum is rotatably mounted on the carrier plate, the drive mechanism is connected to the drum in a transmission connection, one end of the wire rope is fixed to the drum and wound around the outer wall of the drum, and the other end of the wire rope is connected to the support frame in a transmission connection.

5. The ranging execution device according to claim 1, characterized in that, The support frame includes a balance arm and a measuring arm. One end of the balance arm is connected to the support shaft of the mounting base, and the other end of the balance arm extends away from the mounting frame. One end of the measuring arm is located on the support shaft of the mounting base and connected to the balance arm, and the other end of the measuring arm extends away from the balance arm and is connected to the mounting frame.

6. The ranging execution device according to claim 5, characterized in that, The support frame also includes a counterweight, which is mounted on the end of the balance arm away from the measuring arm.

7. The ranging execution device according to claim 5, characterized in that, The support frame also includes a friction-reducing sleeve, which is sleeved on the outside of the support shaft of the mounting base. The balance arm and the measuring arm are both connected to the friction-reducing sleeve.

8. The ranging execution device according to claim 5, characterized in that, Both the balance arm and the measuring arm include multiple steel frame bodies and reinforcing plates. The multiple steel frame bodies are arranged at intervals along the circumference, and the reinforcing plates are connected and fixed to all the steel frame bodies.

9. The ranging execution device according to claim 5, characterized in that, The mounting bracket includes a connecting plate and a mounting plate. The connecting plate is connected to the end of the measuring arm away from the mounting base, and the mounting plate is mounted on the end of the connecting plate. The rangefinder is mounted on the mounting plate.

10. The ranging execution device according to claim 9, characterized in that, The mounting plate is inclinedly disposed on the connecting plate; or, the mounting plate is rotatably mounted on the connecting plate by means of a rotating component, so that the angle of the rangefinder mounted on the mounting plate is adjustable.