A surveying and mapping level ruler pad
By designing a surveying and mapping level ruler pad including a turntable, adjusting screw and plywood, the traditional level ruler pad is easily sinking when rotated and the operator's arm is sore, achieving higher measurement accuracy and operational convenience.
Patent Information
- Application Number
- CN202421310469.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-06-11
AI Technical Summary
During the level measurement process, traditional level ruler pads are prone to sink when rotating the level ruler, resulting in elevation transfer errors, increasing measurement errors and rework. The operator supports the level ruler for a long time will cause arm pain and jitter, affecting measurement accuracy.
A surveying and mapping level ruler pad including a base, a turntable, an adjustment screw, a clamp and a raised hemisphere is designed. The conversion of the level ruler is achieved through the horizontal axial rotation of the turntable and the base, avoiding the sinking of the ruler pad, and clamping the level ruler through the coordination of the adjustment screw and a clamp to prevent its horizontal movement.
It effectively avoids the sinking and elevation transfer errors caused by rotating the level ruler, reduces the measurement error, improves the accuracy of the measurement results, and reduces the labor intensity of the operators, prevents the horizontal movement of the level ruler.
Smart Images
Figure CN222733580U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engineering measurement, in particular to a surveying and mapping level ruler pad. Background Art
[0002] In engineering construction, various surveying equipment and methods are needed, and leveling is an indispensable and important task. Line measurement, tunnel measurement, pipeline measurement and other fields all require leveling to obtain the elevation within the project area. Commonly used surveying instruments and equipment are levels, level rods and ruler pads.
[0003] According to the requirements of engineering surveying specifications, a level rod pad is required to transfer elevations during leveling measurements. Especially on unpaved roads, the stability of the pad is particularly important. A level rod pad with high stability can reduce measurement errors and achieve the measurement accuracy required by the specifications.
[0004] When using a conventional level rod pad, the fixed foot at the bottom of the pad needs to be stepped into the soil. However, when rotating the level rod or changing the front rod to the rear rod, since the pad itself has a certain weight, it is easy for the pad to sink when the operator stands on it for the second time after taking the level rod off the pad, resulting in elevation transfer errors, causing large errors in the measurement results or even gross errors. Therefore, this section or consecutive sections need to be reworked, which consumes more manpower and financial resources.
[0005] Although the existing level rod pad can realize the rotation of the level rod, it requires the operator to manually hold the rod. Holding the rod for a long time will inevitably cause the operator's arm pain or even shaking, making it difficult to ensure that the level rod remains vertical during the measurement process. In addition, the pad does not move in each measuring station, which increases the level measurement error and makes the measurement result inaccurate. Utility Model Content
[0006] The utility model aims to provide a surveying and mapping level ruler pad which can avoid the elevation transfer error caused by the sinking of the ruler pad due to the rotation of the level ruler on the ruler pad, reduce the measurement error, improve the accuracy of the measurement result, and at the same time can limit and clamp the level ruler to prevent the level ruler from moving horizontally.
[0007] The utility model is achieved in this way:
[0008] A surveying and mapping level ruler pad comprises a base, a turntable is horizontally arranged on the upper surface of the base, the turntable is horizontally axially rotatably connected to the base, an adjusting screw is horizontally arranged inside the turntable, the adjusting screw is rotatably connected to the turntable, the adjusting screw is provided with two sections of threads in opposite directions, the two sections of threads in opposite directions are respectively threadedly connected with clamping plates, both of the clamping plates are slidably connected to the turntable via a sliding groove, a raised hemisphere for positioning the level ruler is arranged between the two clamping plates, the raised hemisphere is arranged at the axial center position of the turntable and is fixedly connected to the turntable.
[0009] Furthermore, one end of the adjusting screw extends through the turntable and is connected to a rotating handle for rotating the adjusting screw.
[0010] Furthermore, a non-slip pad is fixedly connected to the bottom of the base.
[0011] Furthermore, a pull ring for transfer and carrying is connected to the side of the base.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] In actual application, during the process of rotating the level rod or changing the front rod to the rear rod, the conversion of the level rod is achieved by horizontal axial rotation of the turntable and the base. There is no need for the operator to take the level rod off the rod pad and then stand on the rod pad for a second time. The elevation transfer error caused by the sinking of the rod pad due to the rotation of the level rod on the rod pad can be avoided, the measurement error can be reduced, and the accuracy of the measurement result can be improved. By rotating the adjusting screw, under the action of two sections of the thread in opposite directions, the two clamping plates can slide towards or away from each other along the slide groove, and the level rod positioned by the raised hemisphere can be clamped and limited to prevent the level rod from moving horizontally. The utility model can avoid the elevation transfer error caused by the sinking of the rod pad due to the rotation of the level rod on the rod pad, reduce the measurement error, and improve the accuracy of the measurement result. At the same time, the level rod can be limited and clamped to prevent the level rod from moving horizontally. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0015] Figure 1 It is a top view of the structural schematic diagram of the utility model;
[0016] Figure 2 yes Figure 1 Cross-section view of the AA surface in the middle.
[0017] Figure numerals: base 1; turntable 2; adjusting screw 3; clamping plate 4; sliding groove 5; raised hemisphere 6; handle 7; anti-slip pad 8; pull ring 9. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.
[0019] See also Figure 1 and Figure 2 A surveying and mapping level ruler pad comprises a base 1, a turntable 2 is horizontally arranged on the upper surface of the base 1, the turntable 2 is horizontally axially rotatably connected to the base 1, an adjusting screw 3 is horizontally arranged inside the turntable 2, the adjusting screw 3 is rotatably connected to the turntable 2, the adjusting screw 3 is provided with two sections of threads in opposite directions, the two sections of threads in opposite directions are respectively threadedly connected with clamping plates 4, the two clamping plates 4 are both slidably connected to the turntable 2 through a slide groove 5, a raised hemisphere 6 for positioning the level ruler is arranged between the two clamping plates 4, the raised hemisphere 6 is arranged at the axial center position of the turntable 2 and is fixedly connected to the turntable 2.
[0020] The utility model can avoid the elevation transmission error caused by the sinking of the scale pad due to the rotation of the level rod on the scale pad, reduce the measurement error, and improve the accuracy of the measurement result. By rotating the adjusting screw 3, under the action of two sections of the thread in opposite directions, the two clamping plates 4 slide towards or away from each other along the slide groove 5, and the level rod positioned by the raised hemisphere 6 is clamped and limited to prevent the level rod from moving horizontally. The utility model can avoid the elevation transmission error caused by the sinking of the scale pad due to the rotation of the level rod on the scale pad, reduce the measurement error, and improve the accuracy of the measurement result. At the same time, the level rod can be clamped to prevent the level rod from moving horizontally.
[0021] See also Figure 1 and Figure 2 One end of the adjusting screw 3 extends through the rotating disk 2 and is connected to a rotating handle 7 for rotating the adjusting screw 3. In this embodiment, the adjusting screw 3 is rotated by rotating the handle 7, thereby driving the clamping plate 4 to clamp the level ruler.
[0022] See also Figure 1 and Figure 2 The bottom of the base 1 is fixedly connected with an anti-skid pad 8. In this embodiment, on a smooth paved road surface, the anti-skid pad 8 at the bottom of the ruler pad can avoid leveling measurement errors caused by unequal front and rear sight distances due to sliding of the ruler pad.
[0023] See also Figure 1 and Figure 2 A pull ring 9 for transfer and carrying is connected to the side of the base 1. In this embodiment, the pull ring 9 is provided to facilitate the transfer of the ruler pad.
[0024] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A surveying and mapping level ruler pad, characterized in that: The utility model comprises a base (1), a turntable (2) is horizontally arranged on the upper surface of the base (1), the turntable (2) is horizontally axially rotatably connected to the base (1), an adjusting screw (3) is horizontally arranged inside the turntable (2), the adjusting screw (3) is rotatably connected to the turntable (2), the adjusting screw (3) is provided with two sections of threads with opposite rotation directions, the two sections of threads with opposite rotation directions are respectively threadedly connected with clamping plates (4), the two clamping plates (4) are both slidably connected to the turntable (2) through a slide groove (5), a raised hemisphere (6) for positioning a level ruler is arranged between the two clamping plates (4), the raised hemisphere (6) is arranged at the axial center position of the turntable (2) and is fixedly connected to the turntable (2).
2. A surveying and mapping level ruler pad according to claim 1, characterized in that: One end of the adjusting screw rod (3) extends through the rotating disk (2) and is connected to a rotating handle (7) for rotating the adjusting screw rod (3).
3. A surveying and mapping level ruler pad according to claim 1, characterized in that: An anti-slip pad (8) is fixedly connected to the bottom of the base (1).
4. A surveying and mapping level ruler pad according to claim 1, characterized in that: A pull ring (9) for transfer and carrying is connected to the side of the base (1).