A level device with multiple viewing angles

Abstract

A multi-visual angle level device, comprising a ruler body, a bubble level device installed in the ruler body, the bubble level device comprising a bubble level, a bubble seat, a first outer bubble seat and a second outer bubble seat, the first outer bubble seat and the second outer bubble seat being oppositely arranged on the left and right sides of the bubble seat, the bubble level being arranged in the bubble seat, a hollow part being formed in the middle of the bubble seat, a positioning structure being arranged in the middle of the hollow part for placing the bubble level, a mirror seat being formed at the rear end of the hollow part for placing a mirror for converting the visual angle, the bubble level and the mirror being respectively arranged in the bubble seat and being clamped and fixed through the first outer bubble seat and the second outer bubble seat. The utility model has the advantages of more reasonable structure, convenient assembly and low cost, convenient observation, accurate measurement and greatly improved performance-price ratio.

Description

Technical Field

[0001] This utility model relates to a level ruler, and more particularly to a level ruler device with multiple viewing angles. Background Technology

[0002] A spirit level is a commonly used leveling measuring tool, most frequently used for horizontal and vertical leveling, accounting for over 95% of measurements. Measurement requirements vary depending on the working environment, especially the viewing angle. A typical spirit level includes at least two bubble levels, each used to confirm whether the surface is "flush" (horizontal) or "plumb" (vertical). A spirit level comprises one or more measuring surfaces and bubble levels set at an angle to these measuring surfaces.

[0003] When measuring a vertical surface, existing spirit levels require viewing the position of the bubble level from the side to determine verticality. The visible range is small, especially when the working surface is too high or too low. Due to the small measurement range, the measurement is not only inconvenient but also inaccurate. Furthermore, commonly used spirit levels cannot be used to measure vertical surfaces.

[0004] To facilitate direct observation of the bubble level position by surveyors, existing spirit levels have been improved. A search revealed Chinese patent CN201620171715.8, entitled "A Spirit Level with Convertible Viewpoint," which includes a main body and a bubble level device installed within the main body. The bubble level device includes a bubble, a bubble level fixing device for fixing the bubble, and a viewpoint conversion device. The viewpoint conversion device includes a lens with its surface facing the bubble, the lens being tilted with one end close to the bubble and the other end away from it. The viewpoint conversion device also includes a viewpoint conversion seat that connects to the bubble level fixing device, the viewpoint conversion seat including a lens holder on which the lens is mounted. This spirit level has an independent viewpoint conversion seat for mounting the lens, allowing the viewpoint conversion device to become an independent accessory. By incorporating a magnifying glass, the viewpoint can be magnified, resulting in clearer observation. However, its structure is relatively complex, requiring a separate view conversion seat. Moreover, the observation window can only observe the bubble level and not the view conversion seat, making observation inconvenient, manufacturing cost high, and assembly troublesome.

[0005] Furthermore, Chinese patent CN201820149867.7, entitled "A Fixing Device for a Transparent Mirror Surface of a Level Ruler," includes a bubble seat, a first outer bubble seat, and a second outer bubble seat. The first and second outer bubble seats are arranged opposite each other on the left and right sides of the bubble seat. A spirit level is disposed within the bubble seat. The front of the bubble seat has a positioning step for inserting the spirit level, and the rear of the bubble seat has a lens holder for inserting a reflective lens to change the viewing angle. The spirit level and the reflective lens are respectively disposed within the bubble seat and clamped and fixed by the first and second outer bubble seats. This structure eliminates the need for a viewing angle conversion seat; both the spirit level and the reflective lens are disposed within the bubble seat and fixed by the outer bubble seats on both sides, reducing the number of components and increasing the viewing window. However, further improvements are needed regarding the viewing angle range. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a multi-viewing-angle level device with a more reasonable structure and more convenient use, which is in response to the above-mentioned technical status. It increases the viewing angle range of the level, making the measurement range larger and the measurement more accurate.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a multi-viewing-angle level device, including a level body and a level bubble device installed in the level body. The level bubble device includes a level bubble, a bubble seat, a first outer bubble seat and a second outer bubble seat. The first outer bubble seat and the second outer bubble seat are arranged opposite to each other on the left and right sides of the bubble seat and have an elastic support structure between them. The level bubble is set in the bubble seat. The feature is that: the middle part of the bubble seat has a hollow part, and the middle part of the hollow part has a positioning structure for inserting the level bubble. The rear end of the hollow part is formed with a lens seat for inserting a reflective lens for changing the viewing angle. The level bubble and the reflective lens are respectively set in the bubble seat and clamped and fixed by the first outer bubble seat and the second outer bubble seat.

[0008] As an improvement, the hollow part of the bubble seat is an isosceles trapezoid, and the level bubble is a columnar structure with a square cross-section. The positioning structure is as follows: the lower end of the hollow part, corresponding to the middle of the short side of the isosceles trapezoid, is provided with a square groove that fits into the lower end of the level bubble; the upper end of the hollow part, corresponding to the middle of the long side of the isosceles trapezoid, is provided with a positioning protrusion that abuts against the two sides of the upper end of the level bubble.

[0009] Furthermore, the lens holder is located at the rear end of the hollow part corresponding to the hypotenuse of the isosceles trapezoid. The lens holder is inclined towards the bubble level, and the side of the lens holder facing the bubble level is flat. A slot is formed between the upper end of the lens holder and the top surface of the hollow part of the bubble level for inserting and limiting the upper end of the reflective lens. The lower end of the lens holder is provided with a stop portion that limits the position of the reflective lens.

[0010] Furthermore, the front end of the bubble seat is formed with an arc-shaped guide surface, and the inner sides of the front ends of the first and second outer bubble seats are respectively symmetrically formed with arc-shaped guide positioning grooves that match the guide surface. The middle of the first and second outer bubble seats is provided with a trapezoidal hollow part corresponding to the hollow part of the bubble seat. A transparent cover plate is provided at the trapezoidal hollow part, and corresponding viewing windows are provided on both sides of the ruler.

[0011] Furthermore, the transparent cover plate has strip-shaped grooves recessed at both the upper and lower ends of its inner side, and corresponding strip-shaped clips are provided on the inner sides of the upper and lower sides of the hollowed-out parts of the first and second outer bubble seats. The transparent cover plate is connected to the first and second outer bubble seats through a snap-fit ​​structure.

[0012] Furthermore, the upper end of the bubble holder has a rectangular cutout window corresponding to the upper part of the reflective lens, the lower part of the cutout window has a support part, a transparent plate is provided at the window, and the upper end of the ruler has an observation window for the transparent plate to be exposed.

[0013] Furthermore, the size of the observation window matches the size of the transparent plate, and the four sides of the transparent plate have outwardly extending edges. The height of the edges is lower than the height of the transparent plate, and the upper end of the transparent plate is set inside the observation window and positioned by abutting against the inner wall of the ruler through the edges.

[0014] Furthermore, the tilt angle between the reflective lens and the spirit level is 45°.

[0015] Finally, the view window is not limited to an isosceles trapezoid; it can also be a rectangle or a triangle.

[0016] Compared with existing technologies, the advantages of this invention are as follows: No viewing angle conversion seat is required; the level bubble and reflector are both housed within the bubble holder and fixed by external bubble holders on both sides, reducing the number of components and lowering costs. The level bubble is positioned in the center of the bubble holder, and a transparent cover plate is installed on the external bubble holder, significantly increasing the viewing window and providing a wider and more convenient observation area. This invention has a more rational structure, is easy to assemble, and has low cost. Simultaneously, it offers more convenient observation and more accurate measurements, greatly improving the product's cost-effectiveness. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 Exploded view;

[0019] Figure 3 for Figure 2 Further breakdown diagram;

[0020] Figure 4This is a cross-sectional view of an embodiment of the present utility model;

[0021] Figure 5 This is another cross-sectional view of an embodiment of the present utility model;

[0022] Figure 6 This is a schematic diagram of the structure during measurement in an embodiment of this utility model. Detailed Implementation

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

[0024] like Figures 1-6 As shown, a multi-viewing-angle level device A includes a level body 1 and a leveling bubble device installed inside the level body 1. The leveling bubble device includes a leveling bubble 3, a bubble seat 2, a first outer bubble seat 4, and a second outer bubble seat 5. The first outer bubble seat 4 and the second outer bubble seat 5 are arranged opposite each other on the left and right sides of the bubble seat 2. There is an elastic support structure between the first outer bubble seat 4 and the second outer bubble seat 5. The leveling bubble 3 is set inside the bubble seat 2. A hollow part 21 is opened in the middle of the bubble seat 2. A positioning structure for inserting the leveling bubble 3 is provided in the middle of the hollow part 21. A lens seat 81 is formed at the rear end of the hollow part 21 for inserting a reflective lens 8 for changing the viewing angle. The leveling bubble 2 and the reflective lens 8 are respectively set inside the bubble seat 2 and clamped and fixed by the first outer bubble seat 4 and the second outer bubble seat 5.

[0025] The specific structure is as follows: the hollow part 21 of the bubble seat 2 is an isosceles trapezoid, the level bubble 3 is a columnar structure with a square cross-section, and the positioning structure is as follows: the lower end of the hollow part 21, corresponding to the middle of the short side of the isosceles trapezoid, is provided with a square groove 22 that fits into the lower end of the level bubble 3, and the upper end of the hollow part 21, corresponding to the middle of the long side of the isosceles trapezoid, is provided with a positioning protrusion 23 that abuts against the two sides of the upper end of the level bubble 3.

[0026] The lens holder 81 is located at the rear end of the hollowed-out portion 21, corresponding to the hypotenuse of the isosceles trapezoid. The lens holder is inclined at 45° towards the bubble level 3, and the side of the lens holder facing the bubble level 3 is flat. A slot 82 is formed between the upper end of the lens holder and the top surface of the hollowed-out portion 21 of the bubble holder 2, for the upper end of the reflective lens 8 to be inserted and positioned. The lower end of the lens holder is provided with a stop portion 83 that limits the position of the reflective lens 8. The front end of the bubble holder 2 is formed with an arc-shaped guide surface 25. The inner surfaces of the front ends of the first outer bubble holder 4 and the second outer bubble holder 5 are respectively symmetrically formed with arc-shaped guide positioning grooves 43 that cooperate with the guide surface 25. The middle of the first outer bubble holder 4 and the second outer bubble holder 5 are provided with trapezoidal hollowed-out portions 41 and 51 corresponding to the hollowed-out portion 21 of the bubble holder 2. Transparent cover plates 6 are provided at the trapezoidal hollowed-out portions 41 and 51. Corresponding viewing windows 11 are provided on both sides of the ruler body 1.

[0027] The transparent cover plate 6 has strip-shaped grooves 61 recessed at its upper and lower ends on its inner side. Corresponding strip-shaped clips 42 are provided on the inner sides of the hollow portions 41 and 51 of the first and second outer bubble seats 4 and 5, respectively. The transparent cover plate 6 is connected to the first and second outer bubble seats 4 and 5 via a snap-fit ​​structure. A rectangular hollow window 24 is provided at the upper end of the bubble seat 21 corresponding to the upper part of the reflector 8. A resting part is provided below the hollow window 24, allowing a transparent plate 7 to be placed there. The transparent plate 7 rests on the resting part. An observation window 12 is provided at the upper end of the ruler body 1 to expose the transparent plate 7. The size of the observation window 12 matches the size of the transparent plate 7. The transparent plate 7 has outwardly extending edges 71 on all four sides, with the height of the edges 71 lower than the height of the transparent plate 7. The upper end of the transparent plate 7 is positioned within the observation window 12 and is fixed by abutting against the inner wall of the ruler body 1 through the edges 71.

[0028] The visible window 11 is not limited to an isosceles trapezoid; it can also be a rectangle or a triangle.

[0029] The assembly process is as follows:

[0030] 1. Place the reflector 8 and the level 3 into the designated positions inside the bubble seat 2 in advance, and fix the transparent cover 6 to the first outer bubble seat 4 and the second outer bubble seat 5 through the snap-fit ​​structure.

[0031] 2. Insert the assembled first outer bubble seat 4 and second outer bubble seat 5 into the ruler body 1;

[0032] 3. Install the assembled bubble level into the scale body 1;

[0033] By adjusting the bubble seat 2, the bubble 3 is moved along an arc to calibrate the bubble 3 and ensure that the bubble 3 meets the relevant requirements of the level.

[0034] This invention significantly increases the viewing angle range, making it more convenient and accurate to observe the level compared to conventional viewing angle converters. In terms of manufacturing costs, it also reduces manufacturing costs by more than 30% compared to traditional products, and improves assembly efficiency by more than 10%, greatly enhancing the product's cost-effectiveness and making it more competitive in the market.

[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A multi-viewing-angle level device, comprising a level body and a leveling bubble device installed within the level body, the leveling bubble device comprising a leveling bubble, a bubble seat, a first outer bubble seat, and a second outer bubble seat, the first and second outer bubble seats being arranged opposite each other on the left and right sides of the bubble seat and having an elastic support structure between them, the leveling bubble being disposed within the bubble seat, characterized in that: The bubble seat has a hollowed-out section in the middle, and a positioning structure for inserting the bubble level is provided in the middle of the hollowed-out section. The rear end of the hollowed-out section is formed with a lens seat for inserting a reflective lens to change the viewing angle. The bubble level and the reflective lens are respectively set in the bubble seat and clamped and fixed by the first outer bubble seat and the second outer bubble seat.

2. The spirit level device according to claim 1, characterized in that: The hollow part of the bubble seat is an isosceles trapezoid, and the level is a columnar structure with a square cross-section. The positioning structure is as follows: the lower end of the hollow part, corresponding to the middle of the short side of the isosceles trapezoid, is provided with a square groove that fits into the lower end of the level; the upper end of the hollow part, corresponding to the middle of the long side of the isosceles trapezoid, is provided with a positioning protrusion that abuts against the two sides of the upper end of the level.

3. The spirit level device according to claim 2, characterized in that: The lens holder is located at the rear end of the hollow part, corresponding to the hypotenuse of the isosceles trapezoid. The lens holder is inclined towards the bubble level, and the side of the lens holder facing the bubble level is flat. A slot is formed between the upper end of the lens holder and the top surface of the hollow part of the bubble level for inserting and limiting the upper end of the reflective lens. The lower end of the lens holder is provided with a stop to limit the position of the reflective lens.

4. The spirit level device according to claim 3, characterized in that: The front end of the bubble seat is formed with an arc-shaped guide surface. The inner sides of the front ends of the first and second outer bubble seats are respectively symmetrically formed with arc-shaped guide positioning grooves that match the guide surface. The middle of the first and second outer bubble seats is provided with a trapezoidal hollow part corresponding to the hollow part of the bubble seat. A transparent cover plate is provided at the trapezoidal hollow part. Corresponding viewing windows are provided on both sides of the ruler.

5. The spirit level device according to claim 4, characterized in that: The transparent cover plate has strip-shaped grooves recessed at the upper and lower ends of its inner side. The upper and lower inner sides of the hollowed-out parts of the first and second outer bubble seats have corresponding strip-shaped clips. The transparent cover plate is connected to the first and second outer bubble seats by a snap-fit ​​structure.

6. The level device according to any one of claims 1 to 5, characterized in that: The upper end of the bubble holder has a rectangular cutout window corresponding to the top of the reflective lens. Below the cutout window is a support part. A transparent plate is provided at the window. The upper end of the ruler has an observation window for the transparent plate to be exposed.

7. The spirit level device according to claim 6, characterized in that: The size of the observation window matches the size of the transparent plate. The four sides of the transparent plate have outwardly extending edges, the height of which is lower than the height of the transparent plate. The upper end of the transparent plate is set inside the observation window and positioned by abutting against the inner wall of the ruler through the edges.

8. The leveling device according to any one of claims 1 to 5, characterized in that: The angle of inclination between the reflector and the level bubble is 45°.

9. The spirit level device according to claim 4, characterized in that: The view window is not limited to an isosceles trapezoid; it can also be a rectangle or a triangle.

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