An adjustable level

Abstract

The invention discloses an adjustable level, comprising a rectangular placement plate with a hollow structure at the center, and a through slot connected to the top of the rectangular placement plate. The invention adjusts the initial angle between the semicircular scale plate and the pointer by rotating and adjusting the semicircular scale plate, and the angle is the predetermined angle of the plane. In addition, when the angle between the rectangular placement plate and the horizontal support plate is adjusted, the preset angle is adjusted. Since the preset angle can be adjusted, when a large number of fixed-angle plane slopes need to be measured, the work intensity can be greatly reduced and the work efficiency can be enhanced. At the same time, the difference between the actual slope angle and the predetermined slope angle can be observed in time, thereby reducing the labor intensity.

Description

Technical Field

[0001] The invention relates to the technical field of measuring instruments, in particular to an adjustable level. Background Art

[0002] At present, most of the levels used in horizontal measurement are of the water drop type. In actual work, they cannot perform batch inclined surface measurement. Moreover, during measurement, the measuring angle cannot be adjusted, which makes fixed angle measurement very complicated and the work efficiency is relatively low. Summary of the invention

[0003] The object of the present invention is to provide an adjustable level to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adjustable level, comprising a rectangular placement plate with a hollow structure in the center, a through groove connected to the top of the rectangular placement plate, a first vertical plate and a second vertical plate located at the center of the upper surface of the rectangular placement plate and opposite to each other, a main rotating shaft installed inside the first vertical plate through a bearing and rotatable, a pointer installed at one end of the main rotating shaft, a connecting rod installed at the bottom of the pointer, a conical gravity body installed at the bottom of the connecting rod, and the conical gravity body is located inside the hollow structure and a semicircular dial, and a rotating structure is provided in the rectangular placement plate for adjusting the initial angle during measurement.

[0005] Furthermore, the rotating structure includes a rotatable secondary rotating shaft arranged in a second vertical plate on the top of the rectangular placing plate. A semicircular dial is installed at one end of the secondary rotating shaft located at the pointer to adjust the semicircular dial. By adjusting the semicircular dial to a predetermined angle, the plane that meets the angle can be measured.

[0006] Furthermore, the rotating structure includes a horizontal support plate installed on the bottom surface of the rectangular placing plate through a hinge, a symmetrical semicircular groove is provided between the bottom surface of the rectangular placing plate and the upper surface of the horizontal support plate, the two semicircular grooves are provided with a spherical initial groove at the end away from the hinge, the spherical initial groove and the semicircular groove are connected by a chamfer transition at the connecting part, the rectangular placing plate and the horizontal support plate are respectively provided with a rod hole on the same side, a laterally movable bolt rod is placed inside the rod hole, a sphere is fixed at one end of the bolt rod, and the other end extends to the external space, the bolt rod located in the external space is screwed with a positioning nut through the bolt structure, and the preset angle is adjusted by adjusting the angle between the rectangular placing plate and the horizontal support plate.

[0007] Furthermore, the diameter of the secondary rotating shaft is the same as the diameter of the shaft hole in the second vertical plate for placing the shaft, and there is rotational resistance between the two during rotation, thereby achieving positioning of the components after rotation and preventing the occurrence of free rotation.

[0008] Furthermore, when the sphere is located inside the spherical initial groove, the rectangular placement plate and the horizontal support plate are horizontally superimposed.

[0009] Furthermore, the end surface of the semicircular dial is engraved with angle scales, and the zero angle is located at the center.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention adjusts the initial angle between the semicircular dial and the pointer by rotating the semicircular dial, and the angle is the predetermined angle of the plane. In addition, when the angle between the rectangular placement plate and the horizontal support plate is adjusted, the preset angle is adjusted. Since the preset angle can be adjusted, when a large number of fixed-angle plane slopes need to be measured, the work intensity can be greatly reduced and the work efficiency can be enhanced. At the same time, the difference between the actual slope angle and the predetermined slope angle can be observed in time, thereby reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the front view of the full cross-section structure of a first embodiment of an adjustable level meter of the present invention;

[0012] Figure 2 It is a right side view full cross-sectional structural schematic diagram of a first embodiment of an adjustable level instrument of the present invention;

[0013] Figure 3 It is a schematic diagram of the front view of the full cross-section structure of a second embodiment of an adjustable level meter of the present invention;

[0014] Figure 4 It is a right side view full cross-sectional structural schematic diagram of a second embodiment of an adjustable level meter of the present invention;

[0015] In the figure: 1, rectangular placement plate, 2, hollow structure, 3, through groove, 4, first vertical plate, 5, second vertical plate, 6, main rotation axis, 7, connecting rod, 8, conical gravity body, 9, pointer, 10, secondary rotation axis, 11, semicircular dial, 12, horizontal support plate, 13, semicircular groove, 14, chamfer, 15, spherical initial groove, 16, sphere, 17, rod hole, 18, bolt rod, 19, positioning nut. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-2The first embodiment provided by the present invention includes a rectangular placement plate 1 with a hollow structure 2 at the center, a through groove 3 connected to the top of the rectangular placement plate 1, a first vertical plate 4 and a second vertical plate 5 located at the center of the upper surface of the rectangular placement plate 1 and opposite to each other, a main rotating shaft 6 installed inside the first vertical plate 4 through a bearing and rotatable, a pointer 9 installed at one end of the main rotating shaft 6, a connecting rod 7 installed at the bottom of the pointer 9, a conical gravity body 8 installed at the bottom of the connecting rod 7, and the conical gravity body 8 is located inside the hollow structure 2 and a semicircular dial 11, the rectangular placement plate 1 is provided with a rotating structure for adjusting the initial angle during measurement, the rotating structure includes a rotatable secondary rotating shaft 10 arranged in the second vertical plate 5 at the top of the rectangular placement plate 1, and the secondary rotating shaft 10 is located at A semicircular dial 11 is installed at one end of the pointer 9, the shaft diameter of the secondary rotating shaft 10 is the same as the shaft hole diameter in the second vertical plate 5 for placing the shaft, and there is rotational resistance between the two when rotating. The end face of the semicircular dial 11 is engraved with angle scales, and the zero angle is located at the center. When working, the semicircular dial 11 is adjusted by rotating to adjust the initial angle between the semicircular dial 11 and the pointer 9, and then the bottom surface of the rectangular placement plate 1 is attached to the plane to be measured. At this time, under the influence of gravity, the pointer 9 will stop on the vertical plane (relative to the horizon). At this time, if the scale indicated by the pointer 9 is 0, it means that the actual angle is consistent with the predetermined angle. By analogy, the difference between the actual angle and the predetermined angle can be known.

[0018] See also Figure 3-4The second embodiment provided by the present invention comprises a rectangular placement plate 1 with a hollow structure 2 at the center, a through slot 3 connected to the top of the rectangular placement plate 1, a first vertical plate 4 and a second vertical plate 5 located at the center of the upper surface of the rectangular placement plate 1 and opposite to each other, a main rotating shaft 6 installed inside the first vertical plate 4 through a bearing and rotatable, a pointer 9 installed at one end of the main rotating shaft 6, a connecting rod 7 installed at the bottom of the pointer 9, and a conical gravity body 8 installed at the bottom of the connecting rod 7, wherein the conical gravity body 8 is located inside the hollow structure 2 and between the semicircular scale The rectangular placing plate 1 is provided with a rotating structure for adjusting the initial angle during measurement. The rotating structure includes a horizontal support plate 12 installed on the bottom surface of the rectangular placing plate 1 through the hinge 11. A symmetrical semicircular groove 13 is provided between the bottom surface of the rectangular placing plate 1 and the upper surface of the horizontal support plate 12. The two semicircular grooves 13 are provided with a spherical initial groove 15 at one end away from the hinge 11. The spherical initial groove 15 and the semicircular groove 13 are transitionally connected at the connecting part by a chamfer 14. The rectangular placing plate 1 and the horizontal support plate 12 are connected at the bottom surface of the rectangular placing plate 1. A rod hole 17 is provided on the same side, and a bolt rod 18 that can be moved laterally is placed inside the rod hole 17. One end of the bolt rod 18 is fixed with a sphere 16, and the other end extends to the external space. The bolt rod 18 located in the external space is screwed with a positioning nut 19 through a bolt structure. When the sphere 16 is located inside the spherical initial groove 15, the rectangular placement plate 1 and the horizontal support plate 12 are horizontally superimposed, and the end face of the semicircular dial 11 is engraved with an angle scale, and the zero angle is located in the center. During operation, by horizontally shifting the bolt The rod 18 can drive the sphere 16 to move, thereby adjusting the angle between the rectangular placement plate 1 and the horizontal support plate 12, and then tighten the positioning nut 19 to adjust the preset angle, and then attach the bottom surface of the horizontal support plate 12 to the plane to be measured. At this time, under the influence of gravity, the pointer 9 will stop on the vertical plane (relative to the horizon). At this time, if the scale indicated by the pointer 9 is 0, it means that the actual angle is consistent with the preset angle, and so on, the difference between the actual angle and the preset angle can be known.

[0019] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An adjustable level, comprising a rectangular placement plate (1) with a hollow structure (2) at the center, a through slot (3) connected to the top of the rectangular placement plate (1), a first vertical plate (4) and a second vertical plate (5) located at the center of the upper surface of the rectangular placement plate (1) and opposite to each other, a main rotating shaft (6) installed inside the first vertical plate (4) through a bearing and rotatable, a pointer (9) installed at one end of the main rotating shaft (6), a connecting rod (7) installed at the bottom of the pointer (9), a conical gravity body (8) installed at the bottom of the connecting rod (7), wherein the conical gravity body (8) is located inside the hollow structure (2) and a semicircular scale plate (11), characterized in that: The rectangular placement plate (1) is provided with a rotating structure for adjusting the initial angle during measurement; The rotating structure comprises a horizontal support plate (12) mounted on the bottom surface of a rectangular placement plate (1) via a hinge (11); a symmetrical semicircular groove (13) is provided between the bottom surface of the rectangular placement plate (1) and the upper surface of the horizontal support plate (12); the two semicircular grooves (13) are provided with a spherical initial groove (15) at one end away from the hinge (11); the spherical initial groove (15) and the semicircular groove (13) are transitionally connected at the connection part via a chamfer (14); the rectangular placement plate (1) and the horizontal support plate (12) are respectively provided with a rod hole (17) on the same side; a laterally movable bolt rod (18) is placed inside the rod hole (17); a spherical body (15) is fixed at one end of the bolt rod (18) 16), and the other end extends to the external space, the bolt rod (18) located in the external space is screwed with a positioning nut (19) through the bolt structure, when the sphere (16) is located inside the spherical initial groove (15), the rectangular placement plate (1) and the horizontal support plate (12) are horizontally superimposed, the rotating structure includes a rotatable secondary rotation axis (10) arranged in the second vertical plate (5) on the top of the rectangular placement plate (1), the secondary rotation axis (10) is installed with a semicircular dial (11) at one end located at the pointer (9), the shaft diameter of the secondary rotation axis (10) is the same as the shaft hole diameter in the second vertical plate (5) for placing the shaft, and there is rotation resistance when the two rotate.

2. An adjustable level according to claim 1, characterized in that: The end surface of the semicircular scale plate (11) is engraved with angle scales, and the zero angle is located at the center.

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