Level gauge for prism reading device with built-in dial

Abstract

The utility model discloses a level gauge for a prism reading device with a built-in dial, relates to the technical field of level gauges, and aims to solve the problems that although the existing partially improved level gauge uses the built-in dial, an observation window or an observation prism is still exposed, and the observation window or the observation prism is not exposed due to the fact that the material is optical plastic or optical glass. According to the technical scheme, the level gauge comprises a level gauge body, a built-in dial body is installed in the level gauge body, an observation window is reserved in the outer side of the level gauge body, and the observation window is arranged on the outer side of the level gauge body. Limiting blocks are fixedly connected to the positions, located on the outer side of the observation window, of the inner side of the level gauge body, limiting grooves are formed in the limiting blocks, and a film coating beam splitter prism is installed between the limiting blocks. And the effect of convenient use is achieved.

Description

Technical Field

[0001] This utility model relates to the field of leveling instrument technology, and in particular to a leveling instrument with a prism reading device for a built-in graduated circle. Background Technology

[0002] A level is an instrument used to establish a horizontal line of sight and determine the height difference between two points on the ground. The principle is to measure the height difference between ground points based on the principle of leveling. The main components include a telescope, a tubular level (or compensator), a vertical axis, a base, and leveling screws. According to the structure, they are divided into tilting levels, automatic leveling levels, laser levels, and digital levels (also known as electronic levels). Traditional optical levels, electronic levels, and other measuring instruments mostly have external graduations. During field use, they are easily damaged by wind and sun, resulting in inaccurate measurements.

[0003] The existing technical solutions mentioned above have the following drawbacks: Although some of the existing improved level instruments use a built-in dial, the observation window or observation prism is still exposed. Since the materials are optical plastic or optical glass, they are easily exposed to wind and sun when working in the field, and over time they are easily broken or scratched, affecting the accuracy of observation and measurement. Utility Model Content

[0004] The purpose of this invention is to provide a level instrument with a prism reading device for a built-in dial.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A level instrument for a prism reading device with a built-in scale circle includes a level instrument body, an internally mounted built-in scale circle body, an observation window reserved on the outer side of the level instrument body, a limiting block fixedly connected to the inner side of the level instrument body outside the observation window, a limiting groove formed inside the limiting block, and a coated beam splitter prism installed between the limiting blocks.

[0007] By adopting the above technical solution, the beam splitter coating prism is a right-angle prism made of PMMA or other optical plastic materials or optical glass. The beveled surface of the beam splitter prism can be printed with text or trademarks and other identification information. The beveled surface of the prism has dual characteristics of reflective observation and direct observation. Users can choose different observation angles according to their actual needs. When observing with reflection, the index line and the dial below can be seen. When observing directly, the relevant marking information on the beveled surface can be observed.

[0008] Furthermore, the outer side of the coated beam splitter is provided with a prism bevel, and the outer side of the coated beam splitter near the prism bevel is provided with a prism mounting surface. The prism mounting surface has a mounting hole inside, and the outer side of the coated beam splitter near the prism bevel is provided with a prism transmission surface. The other outer side of the coated beam splitter has a reserved index line, and a limit connector is fixedly connected to the outer side of the coated beam splitter.

[0009] By adopting the above technical solution and adding a limiting block and a limiting groove, the prism can be engaged with the limiting groove through the outer limiting connector, making the prism more stable to install.

[0010] Furthermore, two limiting blocks are symmetrically arranged, and two limiting connectors are symmetrically arranged, with the limiting connectors and limiting grooves engaging and connecting.

[0011] By adopting the above technical solution and using a symmetrically arranged structure, the stability of the prism structure can be improved, making it more stable and reliable during use.

[0012] Furthermore, the coated beam splitter is placed at the upper end of the built-in dial body and is parallel to the built-in dial body, and the surface of the built-in dial body is engraved with angle values.

[0013] By adopting the above technical solution, the leveling instrument's dial device has been improved. The newly adopted dial is built-in, which makes the entire leveling instrument more stable and durable, and avoids wear and tear on the dial during long-term use.

[0014] Furthermore, the angle between the inclined surface of the coated beam splitter and the bottom surface of the coated beam splitter is 45°.

[0015] By adopting the above technical solution, users can choose different observation angles according to their actual needs. When observing by reflection, since the observation angle is greater than the total reflection angle, there is a total reflection phenomenon. Based on the principle of total reflection, which is more in line with the optical principle, the indicator line and the dial below can be seen. When observing by direct reflection, the observation angle is less than the total reflection angle, and the total reflection phenomenon does not exist, so the relevant marking information of the inclined plane can be directly observed.

[0016] In summary, the beneficial technical effects of this utility model are as follows:

[0017] The level instrument features an improved design with an integrated dial body and a coated beam-splitting prism. The newly adopted built-in dial enhances the stability and durability of the entire level, preventing wear and tear during long-term use. The use of the coated beam-splitting prism simplifies the level's structure, allowing manufacturers to place necessary information on the prism's inclined surface. This inclined surface offers both reflective and direct observation capabilities, allowing users to choose different viewing angles based on their needs. Reflective observation reveals the indicator lines and the dial below, while direct observation reveals relevant markings on the inclined surface, resulting in a user-friendly design. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the coated beam splitter of this utility model. Figure 1 ;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the coated beam splitter of this utility model. Figure 2 .

[0022] In the diagram, 1. Level instrument body; 2. Built-in dial body; 3. Observation window; 4. Limiting block; 5. Limiting groove; 6. Coated beam splitter prism; 61. Prism bevel; 62. Prism mounting surface; 63. Mounting hole; 64. Prism transmission surface; 65. Index line; 66. Limiting connector. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] Reference Figure 1-4A level instrument for a prism reading device with a built-in scale circle includes a level instrument body 1, an internal scale circle body 2 installed inside the level instrument body 1, an observation window 3 reserved on the outer side of the level instrument body 1, a limiting block 4 fixedly connected to the inner side of the level instrument body 1 outside the observation window 3, a limiting groove 5 formed inside the limiting block 4, a coated beam splitter 6 installed between the limiting blocks 4, a prism inclined surface 61 provided on the outer side of the coated beam splitter 6, a prism mounting surface 62 provided on the outer side of the coated beam splitter 6 near the prism inclined surface 61, a mounting hole 63 formed inside the prism mounting surface 62, a prism transmission surface 64 provided on the other side of the coated beam splitter 6 near the prism inclined surface 61, an index line 65 reserved on the other side of the coated beam splitter 6, and a limiting connector fixedly connected to the outer side of the coated beam splitter 6. 66. The coated beam splitter prism 6 is made of PMMA, optical plastic, or optical glass. Users can choose different observation angles according to their actual needs. When observing by reflection, because the observation angle is greater than the total reflection angle, total reflection occurs. Based on the principle of total reflection in optics, the index line 65 and the dial below can be seen. When observing directly, the observation angle is less than the total reflection angle, and the total reflection phenomenon does not exist, so the relevant marking information on the inclined surface can be directly observed. Since optical materials are easily scratched and damaged, affecting observation, a hardening film is coated on the inclined surface. In order to ensure that the text, trademarks, and other marking information on the inclined surface can be observed at different angles while observing the dial, a beam splitter film is coated on the inclined surface 61 of the prism. In order to increase the transmittance of the prism, an optical anti-reflection film is coated on the light-transmitting surface to reduce reflection and increase the transmittance of the prism.

[0025] like Figure 1-4 As shown, there are two symmetrically arranged limit blocks 4 and two symmetrically arranged limit connectors 66. The limit connectors 66 and the limit grooves 5 are engaged and connected. The coated beam splitter 6 is placed at the upper end of the built-in dial body 2 and is parallel to the built-in dial body 2. Angle values ​​are engraved on the surface of the built-in dial body 2. The angle between the inclined surface of the coated beam splitter 6 and the bottom surface of the coated beam splitter 6 is 45°.

[0026] The implementation principle of this embodiment is as follows: In use, the coated beam splitter 6 can be engaged with the limiting groove 5 inside the limiting block 4 through the limiting connector 66 on the outside, and then installed with the internal components of the level body 1 through the prism mounting surface 62. In use, it can be observed through the observation window 3. The prism inclined surface 61 has dual characteristics of reflection observation and direct observation. When observing with reflection, the index line 65 and the dial below can be seen. When observing directly, the relevant marking information on the inclined surface can be observed. Moreover, in order to ensure that the text, trademarks and other marking information on the inclined surface can be observed at different angles when observing the dial, a beam splitter film is coated on the prism inclined surface 61. In order to increase the transmittance of the prism, an optical anti-reflection film is coated on the light-transmitting surface to reduce reflection and increase the transmittance of the prism, which greatly increases the surface hardness, thereby reducing the chance of damage and scratches and increasing the product life.

[0027] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A level for a prism reading device with a built-in scale circle, comprising a level body (1), characterized in that: The level instrument body (1) has a built-in dial body (2) installed inside. The level instrument body (1) has an observation window (3) reserved on the outside. The inner side of the level instrument body (1) is fixedly connected to a limiting block (4) outside the observation window (3). A limiting groove (5) is opened inside the limiting block (4). A coated beam splitter (6) is installed between the limiting blocks (4).

2. The level instrument for a prism reading device with a built-in scale circle according to claim 1, characterized in that: The outer side of the coated beam splitter prism (6) is provided with a prism bevel (61), and the outer side of the coated beam splitter prism (6) near the prism bevel (61) is provided with a prism mounting surface (62). The prism mounting surface (62) is provided with a mounting hole (63). The outer side of the coated beam splitter prism (6) near the prism bevel (61) is provided with a prism transmission surface (64). The outer side of the coated beam splitter prism (6) is reserved with an index line (65). The outer side of the coated beam splitter prism (6) is fixedly connected with a limiting connector (66).

3. The level instrument for a prism reading device with a built-in scale circle according to claim 2, characterized in that: Two limit blocks (4) are symmetrically arranged, and two limit connectors (66) are symmetrically arranged. The limit connectors (66) and the limit grooves (5) are engaged and connected.

4. The level instrument for a prism reading device with a built-in scale circle according to claim 1, characterized in that: The coated beam splitter (6) is placed at the upper end of the built-in dial body (2) and is parallel to the built-in dial body (2). Angle values ​​are engraved on the surface of the built-in dial body (2).

5. The level instrument for a prism reading device with a built-in scale circle according to claim 1, characterized in that: The inclined surface of the coated beam splitter (6) forms an angle of 45° with the bottom surface of the coated beam splitter (6).

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