Elevation datum point
By designing an elevation benchmark that is compatible with both laser trackers and levels, the problem of simultaneous use in existing technologies has been solved, achieving both accuracy and convenience in elevation measurement and extending the service life of the benchmark sphere.
Patent Information
- Application Number
- CN202520271300.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-02-20
AI Technical Summary
Existing elevation benchmarks cannot be simultaneously adapted to both laser trackers and levels, resulting in complex and inefficient measurement operations.
An elevation benchmark is designed, including a benchmark part and a top cover. The benchmark part includes a fixing element and a benchmark ball. The benchmark ball is used to measure the first elevation of the ball's center position in conjunction with a laser tracker. The highest point on the top is used to measure the second elevation in conjunction with a level. The top cover is detachably fixed to the top of the fixing element to protect the benchmark ball. It is compatible with both instruments.
It achieves accurate data measurement by simultaneously using a laser tracker and a level, protects the reference sphere from external factors, extends its service life, and improves measurement accuracy and ease of operation.
Smart Images
Figure CN223581006U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of height measurement, especially to a height reference point. BACKGROUND
[0002] In the field of measurement, the accurate establishment of the height reference point is crucial for various engineering construction and measurement work. At present, with the continuous development of measurement technology, laser tracker and level have become common measurement equipment. However, the existing height reference point has many problems.
[0003] There are many elevation reference points suitable for laser tracker, such as a fixed control point device cooperating with a laser tracker target ball, a permanent reference point for laser tracker measurement, etc. These reference points are designed only for laser tracker and cannot be used with level. In actual measurement work, if laser tracker and level are needed to be used simultaneously for height measurement, different types of reference points need to be re-established, which is complicated and inefficient.
[0004] Therefore, it is of great practical significance to develop a height reference point that can adapt to laser tracker and level simultaneously. UTILITY MODEL CONTENT
[0005] The utility model aims to provide a height reference point to solve the above-mentioned problems of the prior art, which is simple in structure, convenient to use, and can adapt to laser tracker and level simultaneously.
[0006] To achieve the above-mentioned purpose, the utility model provides the following scheme:
[0007] The utility model provides a height reference point, which comprises a reference part and an upper cover. The reference part comprises a fixing part and a reference ball. The fixing part is used for embedding and fixing to the ground. The reference ball is fixedly connected to the top of the fixing part. The reference ball is used for cooperating with laser tracker to measure the first height of the center position of the reference ball. The highest point of the top of the reference ball is used for cooperating with level to measure the second height of the highest point of the top of the reference ball. The upper cover is used for detachably fixedly connecting with the top of the fixing part. The upper cover is provided with a containing cavity for accommodating the reference ball so that the upper cover can cover the reference ball.
[0008] Preferably, the surface of the reference ball is precisely processed.
[0009] Preferably, the diameter of the reference ball is greater than 15mm.
[0010] Preferably, the fixing member comprises a bottom column and a neck column, the neck column is integrally connected to the top of the bottom column, the neck column is coaxially arranged with the bottom column, and the diameter of the neck column is smaller than that of the bottom column, the reference ball is fixedly connected to the end of the neck column away from the bottom column, and the neck column is detachably fixedly connected with the upper cover.
[0011] Preferably, the fixing member comprises a bottom column and a neck column, the neck column is integrally connected to the top of the bottom column, the neck column is coaxially arranged with the bottom column, and the diameter of the neck column is smaller than that of the bottom column, the reference ball is fixedly connected to the end of the neck column away from the bottom column, and the neck column is detachably fixedly connected with the upper cover.
[0012] Preferably, the end of the upper column away from the neck column is provided with external threads, and the opening of the upper cover is provided with internal threads for threadedly connecting with the external threads.
[0013] Preferably, the fixing member comprises a bottom column and a neck column, the neck column is integrally connected to the top of the bottom column, the neck column is coaxially arranged with the bottom column, and the diameter of the neck column is smaller than that of the bottom column, the reference ball is fixedly connected to the end of the neck column away from the bottom column, and the neck column is detachably fixedly connected with the upper cover.
[0014] Preferably, the bottom of the reference ball is provided with a connecting surface for fixedly connecting with the upper column.
[0015] Preferably, the area of the connecting surface is the same as the cross-sectional area of the ball neck.
[0016] Preferably, the reference ball is a structure of more than two-thirds of a sphere.
[0017] The utility model discloses relative to prior art has obtained following technical effect:
[0018] The utility model discloses relative to prior art has obtained following technical effect: BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.
[0020] Fig. 1 The overall structure schematic diagram of the height reference point provided by the present application is shown in the figure.
[0021] Fig. 2 The schematic diagram of the height reference point provided by the present application when the cover is opened is shown in the figure.
[0022] Fig. 3 The structure schematic diagram of the reference part in the height reference point provided by the present application is shown in the figure.
[0023] Fig. 4 The upper cover structure schematic diagram in the height reference point provided by the present application is shown in the figure.
[0024] In the figure: 1, reference part; 1.1, bottom column; 1.2, neck column; 1.3, external thread; 1.4, ball neck; 1.5, reference ball; 1.6, upper column; 2, upper cover; 2.1, internal thread. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0026] The purpose of the present application is to provide a height reference point to solve the problems in the prior art, which is simple in structure, convenient to use, and can be adapted to laser tracker and level at the same time.
[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.
[0028] The present application provides a height reference point, such as Figs. 1-4As shown, it comprises: a reference part 1 and an upper cover 2, the reference part 1 comprises a fixing part for embedding and fixing to the ground and a reference ball 1.5 fixedly connected to the top of the fixing part, the reference ball 1.5 is used in cooperation with the laser tracker to measure the first elevation of the center of the reference ball 1.5, and the highest point of the top of the reference ball 1.5 is used in cooperation with the level to measure the second elevation of the highest point of the top of the reference ball 1.5; the upper cover 2 is detachably fixedly connected to the top of the fixing part, and the upper cover 2 is provided with a containing cavity for accommodating the reference ball 1.5 so that the upper cover 2 can cover the reference ball 1.5, and the functions and connection relationships of each part of the elevation reference point are clear. The fixing part stably fixes the reference ball 1.5 on the ground, so that the position of the reference ball 1.5 is stable and reliable, thereby ensuring the accuracy of the data when cooperating with the laser tracker and the level to measure the elevation. The reference ball 1.5 is used in cooperation with the laser tracker to measure the first elevation of the center of the reference ball 1.5, and the highest point of the top of the reference ball 1.5 is used in cooperation with the level to measure the second elevation of the highest point of the top of the reference ball 1.5, and the first elevation plus the diameter of the reference ball 1.5 is the second elevation, so that the laser tracker and the level can be adapted and measured at the same time, the upper cover 2 is detachably fixed on the top of the fixing part, and the containing cavity can accommodate and cover the reference ball 1.5, effectively protecting the reference ball 1.5 from external factors such as dust, collision, etc., prolonging the service life of the reference ball 1.5, and improving the accuracy of the measurement of the reference ball 1.5.
[0029] In a preferred embodiment, the surface of the reference ball 1.5 is precisely machined, so that the surface precision is higher, which can provide a more accurate measurement surface for the laser tracker, thereby improving the precision of the laser tracker in measuring the center of the reference ball 1.5, reducing measurement error, and improving the measurement reliability and accuracy of the entire elevation reference point.
[0030] In a preferred embodiment, the diameter of the reference ball 1.5 is greater than 15 mm, which can allow the laser tracker to obtain more measurement data points, which is helpful for more accurately fitting the center of the ball. A larger ball diameter also makes it easier to position and measure the highest point of the top of the reference ball 1.5 when the level measures it, further improving the measurement accuracy and operability.
[0031] In a preferred embodiment, the fixing part comprises a bottom column 1.1 and a neck column 1.2, the neck column 1.2 is integrally connected to the top of the bottom column 1.1, the neck column 1.2 is coaxially arranged with the bottom column 1.1, and the diameter of the neck column 1.2 is smaller than that of the bottom column 1.1, the reference ball 1.5 is fixedly connected to the end of the neck column 1.2 away from the bottom column 1.1, and the neck column 1.2 is detachably fixedly connected with the upper cover 2. The structure design ensures the stability of the fixing part, the larger diameter of the bottom column 1.1 can provide better anchoring, so that the entire height reference point can be stably buried in the ground. The diameter of the neck column 1.2 is smaller than that of the bottom column 1.1 and coaxially arranged, which facilitates processing and manufacturing, ensures the connection strength, realizes the detachable connection with the upper cover 2, and facilitates the disassembly and installation operation of the upper cover 2, and facilitates the maintenance of the reference ball 1.5.
[0032] In a preferred embodiment, the height reference point further comprises an upper column 1.6, the upper column 1.6 is integrally connected to the end of the neck column 1.2 away from the bottom column 1.1, the upper column 1.6 is coaxially arranged with the neck column 1.2, and the diameter of the upper column 1.6 is larger than that of the neck column 1.2, the end of the upper column 1.6 away from the neck column 1.2 is used for fixedly connecting with the reference ball 1.5, and the end of the upper column 1.6 away from the neck column 1.2 is used for detachably fixedly connecting with the upper cover 2. The design of the upper column 1.6 further optimizes the connection structure between the components of the reference part 1. The diameter of the upper column 1.6 is larger than that of the neck column 1.2, which on the one hand enhances the support stability of the reference ball 1.5, and on the other hand facilitates the connection with the reference ball 1.5 and the upper cover 2. Through this setting, the structure of the reference part 1 is more compact and stable, which improves the reliability and durability of the entire height reference point, and also improves the rationality of the connection between the components and the convenience of operation.
[0033] In a preferred embodiment, the end of the upper column 1.6 away from the neck column 1.2 is provided with external threads 1.3, and the opening of the upper cover 2 is provided with internal threads 2.1, the internal threads 2.1 are used for screwing with the external threads 1.3, the screw connection is stable and reliable, and the installation and disassembly of the upper cover 2 is simple and convenient. This standardized connection method has strong universality and can ensure the tight connection between the upper cover 2 and the upper column 1.6, so as to better protect the reference ball 1.5, prevent external factors from damaging the connection structure of the upper cover 2 and the reference ball 1.5, and ensure the reliability of the height reference point in the long-term use.
[0034] In a preferred embodiment, the height reference point further comprises a ball neck 1.4 integrally connected with the upper column 1.6 away from the neck column 1.2, the diameter of the ball neck 1.4 is smaller than the diameter of the upper column 1.6, the end of the ball neck 1.4 away from the upper column 1.6 is used for fixed connection with the reference ball 1.5, and the arrangement of the ball neck 1.4 optimizes the connection structure of the reference ball 1.5 and the upper column 1.6. The diameter is smaller than the upper column 1.6, which is conducive to stress concentration and enhances the connection strength of the reference ball 1.5 and the upper column 1.6. And this connection structure can guarantee the installation accuracy of the reference ball 1.5, so that the reference ball 1.5 can maintain the correct position and posture during the measurement process, and improve the accuracy when the reference ball 1.5 cooperates with the laser tracker and the level meter.
[0035] In a preferred embodiment, the bottom of the reference ball 1.5 is provided with a connecting surface for fixed connection with the upper column 1.6, and the bottom of the reference ball 1.5 is provided with a connecting surface to provide a stable connection basis between the reference ball 1.5 and the upper column 1.6. Through the connecting surface, various ways such as welding and bolt connection can be used for reliable connection, so that the connection between the reference ball 1.5 and the upper column 1.6 is more stable, and the stability of the position of the reference ball 1.5 in the long-term measurement process is guaranteed, thereby improving the accuracy of the measurement data.
[0036] In a preferred embodiment, the area of the connecting surface is the same as the cross-sectional area of the ball neck 1.4, and the area of the connecting surface is the same as the cross-sectional area of the ball neck 1.4, which can realize uniform distribution of stress and improve the stability and reliability of the connection. This design can effectively avoid the stress concentration phenomenon caused by the large area difference of the connection part, prolong the service life of the part, ensure the connection strength between the reference ball 1.5 and the upper column 1.6, and further improve the performance of the entire height reference point.
[0037] In a preferred embodiment, the reference ball 1.5 is a more than two-thirds spherical structure, and the reference ball
[0038] 1.5 is a more than two-thirds spherical structure, which ensures that the laser tracker has enough measurement surface, which is conducive to the laser tracker to obtain enough data points, so as to more accurately fit the position of the ball center. At the same time, such a structure is also conducive to the level meter to measure the highest point of the top of the reference ball 1.5 from different angles, and improves the accuracy and accuracy of the measurement.
[0039] The principle and implementation mode of the specific examples in the utility model are described, and the above embodiment is only used to help understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the utility model, the specific implementation mode and application range will be changed. In conclusion, the content of the specification should not be understood as the limitation of the utility model.
Claims
1. An elevation benchmark, characterized in that: include: The reference part includes a fixing member and a reference ball. The fixing member is used to be buried and fixed in the ground. The reference ball is fixedly connected to the top of the fixing member. The reference ball is used in conjunction with a laser tracker to measure the first elevation of the center position of the reference ball. The highest point of the top of the reference ball is used in conjunction with a level to measure the second elevation of the highest point of the top of the reference ball. as well as The upper cover is detachably fixed to the top of the fixing member, and the upper cover is provided with a receiving cavity for accommodating the reference ball so that the upper cover can cover the reference ball.
2. The elevation benchmark according to claim 1, characterized in that: The surface of the reference sphere has undergone precision machining.
3. The elevation benchmark according to claim 2, characterized in that: The diameter of the reference sphere is greater than 15 mm.
4. The elevation benchmark according to claim 3, characterized in that: The fastener includes a base post and a neck post. The neck post is integrally connected to the top of the base post. The neck post is coaxial with the base post, and the diameter of the neck post is smaller than the diameter of the base post. The reference ball is fixedly connected to the end of the neck post away from the base post. The neck post is detachably fixedly connected to the top cover.
5. The elevation benchmark according to claim 4, characterized in that: It also includes an upper column, which is integrally connected to the end of the neck column away from the bottom column. The upper column is coaxial with the neck column, and the diameter of the upper column is larger than the diameter of the neck column. The end of the upper column away from the neck column is used to be fixedly connected to the reference ball, and the end of the upper column away from the neck column is used to be detachably fixedly connected to the upper cover.
6. The elevation benchmark according to claim 5, characterized in that: The upper column has an external thread at the end away from the neck column, and the opening of the upper cover has an internal thread, which is used to connect with the external thread.
7. The elevation benchmark according to claim 6, characterized in that: It also includes a ball neck, which is integrally connected to the end of the upper post away from the neck post. The diameter of the ball neck is smaller than the diameter of the upper post, and the end of the ball neck away from the upper post is used for fixed connection with the reference ball.
8. The elevation benchmark according to claim 7, characterized in that: The bottom of the reference sphere is provided with a connecting surface, which is used to fix it to the upper column.
9. The elevation benchmark according to claim 8, characterized in that: The area of the connecting surface is the same as the cross-sectional area of the ball neck.
10. The elevation benchmark according to claim 9, characterized in that: The reference sphere is a spherical structure with a diameter greater than two-thirds.