A deformable magnetic level

Abstract

This invention relates to a deformable magnetic level. It includes a first level segment and a second level segment rotatably connected to each other; each level segment contains several permanent magnets; the first level segment has at least two columnar bubble levels, and the second level segment has at least one columnar bubble level; a triangular locking block is slidably mounted on the second level segment, and the triangular locking block has a first positioning surface and a second positioning surface that are perpendicular to each other. This invention has two forms: Form 1, where the first and second level segments are fitted together and combined into one unit; and Form 2, where the first and second level segments are perpendicular to each other. In Form 2, the invention is L-shaped, allowing for simultaneous and accurate measurement of levelness in two directions, with sufficiently long contact lengths in both directions to effectively reduce measurement errors, and also providing the function of measuring perpendicularity.

Description

Technical Field

[0001] The invention relates to a level ruler, in particular to a deformable magnetic level ruler. Background Art

[0002] A level ruler is a measuring instrument that uses the principle of liquid level to directly display angular displacement with a level bubble to measure the deviation of the measured surface relative to the horizontal position, plumb position, and tilt position. The carrier of the existing level ruler is generally a long aluminum alloy cuboid, on which two or three level bubbles are arranged, and the orientations of the level bubbles are different. When measuring the level, whether the test result is accurate has a lot to do with whether the level ruler fits the surface to be measured. If the two are not completely fitted due to impurities or local slight protrusions, the measurement result is unreliable. Therefore, if the slight protrusions cannot be eliminated, the larger the size of the level ruler, the smaller the degree of overall tilt of the level ruler caused by the slight protrusions. However, the width of the existing level ruler is very narrow, so the reliability of the horizontality detection result in the width direction is not high. In actual operation, the inspector often needs to place the angle multiple times to determine the straightness, which will lead to low detection efficiency. At the same time, the existing level ruler cannot be used to detect verticality. Summary of the invention

[0003] The present invention provides a deformable magnetic level ruler, which solves the problem in the prior art that inspection personnel often need to place the level ruler at an angle multiple times to determine the straightness, resulting in low inspection efficiency.

[0004] The above technical problems of the present invention are mainly solved by the following technical solutions: a deformable magnetic level, comprising a first level segment and a second level segment, one end of the first level segment is provided with a shaft sleeve, one end of the second level segment is provided with a shaft body rotatably matched with the shaft sleeve, a first straight reference bottom surface is formed at the bottom of the first level segment, a second straight reference bottom surface is formed at the bottom of the second level segment, the two reference bottom surfaces are coplanarly arranged, and the shaft body is perpendicular to the second reference bottom surface; a number of permanent magnets are arranged inside the two level segments; at least two columnar level bubbles are provided on the first level segment, and at least one columnar level bubble is provided on the second level segment, the axis of the columnar level bubble is parallel to any reference bottom surface, and there is at least one on any level segment. The distribution direction of the columnar horizontal bubble is parallel to its length direction, and at least one columnar horizontal bubble is provided on the first horizontal ruler segment, and its distribution direction is perpendicular to its length direction; the second horizontal ruler segment is slidably equipped with a triangular clamping block, and its sliding direction is consistent with the length direction of the second horizontal ruler segment, and the triangular clamping block is formed with a first positioning surface and a second positioning surface perpendicular to each other, and the second positioning surface is parallel to the length direction of the second horizontal ruler segment and perpendicular to the second reference bottom surface; the first horizontal ruler segment is provided with a accommodating groove for accommodating the triangular clamping block, the two horizontal ruler segments are flipped outward and the triangular clamping block is dragged to one side of the shaft body, when the first positioning surface and the second positioning surface are simultaneously in contact with the first horizontal ruler segment and the second horizontal ruler segment, the two horizontal ruler segments are constrained to be perpendicular to each other.

[0005] The two levels in the present invention can be flipped over each other, so the present invention has two forms. In form one, the first level segment and the second level segment fit together, and the two are combined into one; in form two, the first level segment and the second level segment are perpendicular to each other. When the present invention is in form one, the overall form is no different from a conventional level, and the operation method is also the same. This form is suitable for measuring narrower objects to be measured. When the surface to be measured is a wide plane, in order to accurately detect the horizontality in all directions, form two is required. When the present invention is in form two, the whole is L-shaped, and the horizontality in two directions can be measured simultaneously and well, and the detection fitting length in the two directions is long enough, which can effectively reduce the detection error.

[0006] The triangular clamp block in the present invention is used to constrain the angle between the first horizontal ruler segment and the second horizontal ruler segment. When the triangular clamp block is slid so that the two horizontal ruler segments are respectively fitted with the first positioning surface and the second positioning surface on the triangular clamp block, the present invention is in the second form. When the triangular clamp block is slid and the two horizontal ruler segments are closed so that the triangular clamp block is inserted into the receiving groove, the two horizontal ruler segments can be completely closed, and the present invention is in the first form.

[0007] Furthermore, when the two horizontal ruler segments are perpendicular to each other, the fitting part of the first positioning surface and the first horizontal ruler segment is a first abutting surface, the first abutting surface is provided with a plurality of latch teeth, and the first positioning surface is provided with a plurality of latch grooves adapted to the latch teeth. When the latch teeth and the latch grooves are engaged with each other, the first abutting surface and the first positioning surface are fixed to each other, and this effect can realize that the triangular clamping block is firmly fixed between the two horizontal ruler segments.

[0008] Furthermore, a torsion spring is sleeved on the shaft body, and the torsion spring can drive the two horizontal ruler segments to rotate closer to each other until the two are parallel and close to each other. The function of the torsion spring is not only to allow the two horizontal ruler segments to close autonomously, but also to keep the present invention fixed in the second form with the clamping effect of the triangular clamping block.

[0009] Furthermore, a positioning groove is provided on the inner side wall of the first level ruler segment and at one end away from the shaft sleeve, and a positioning convex block adapted to the positioning groove is provided on the inner side wall of the second level ruler segment. When the present invention is in the first form, the positioning convex block and the positioning groove are engaged with each other, which can prevent the two level ruler segments from deflecting, ensure that the two reference bottom surfaces are coplanar with each other, and protect the shaft body.

[0010] Therefore, compared with the prior art, the present invention has the following characteristics: 1. The present invention has two forms. When the present invention is in form two, the whole is L-shaped, which can better measure the horizontality in two directions at the same time, and the detection fitting length in the two directions is long enough to effectively reduce the detection error, and it also has the function of measuring verticality; 2. When switching between the two forms, the present invention is simple to operate and has a good stabilization effect after deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attached Figure 1 It is a front view of the present invention in the first form;

[0012] Attached Figure 2 Yes Figure 1 A frontal stereogram of

[0013] Attached Figure 3 Yes Figure 1 The back stereogram of

[0014] Attached Figure 4 is a front view of the present invention in the second form;

[0015] Attached Figure 5 Yes Figure 4 A frontal stereogram of

[0016] Attached Figure 6 This is the front view of the triangle card block. DETAILED DESCRIPTION

[0017] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0019] Example 1: See Figure 1 , Figure 2 , Figure 4 and Figure 5 A deformable magnetic level ruler comprises a first level ruler segment 100 and a second level ruler segment 200. A sleeve 110 is provided at one end of the first level ruler segment, and a shaft body 210 rotatably matched with the sleeve is provided at one end of the second level ruler segment. A straight first reference bottom surface 120 is formed at the bottom of the first level ruler segment, and a straight second reference bottom surface 220 is formed at the bottom of the second level ruler segment. The two reference bottom surfaces are coplanar (see Figure 3 ), the shaft is perpendicular to the second reference bottom surface; a plurality of permanent magnets 20 are arranged inside the two horizontal ruler segments, and the permanent magnets are specifically neodymium magnets; two columnar horizontal bubbles 10 are arranged on the first horizontal ruler segment, and a columnar horizontal bubble 10 is arranged on the second horizontal ruler segment, the axis of the columnar horizontal bubble is parallel to any reference bottom surface, a columnar horizontal bubble is arranged on the two horizontal ruler segments, and the distribution direction of the columnar horizontal bubble is parallel to the length direction thereof, and a columnar horizontal bubble is arranged on the first horizontal ruler segment, and the distribution direction of the columnar horizontal bubble is perpendicular to the length direction thereof; a triangular clamp block 300 is slidably mounted on the second horizontal ruler segment, and its sliding direction is consistent with the length direction of the second horizontal ruler segment, and a first positioning surface 310 and a second positioning surface 320 perpendicular to each other are formed on the triangular clamp block (see Figure 6 ), the second positioning surface is parallel to the length direction of the second horizontal ruler segment and perpendicular to the second reference bottom surface; the first horizontal ruler segment is provided with a receiving groove 130 for accommodating the triangular clamping block, the two horizontal ruler segments are flipped outward and the triangular clamping block is dragged to one side of the shaft body, when the first positioning surface and the second positioning surface are simultaneously in contact with the first horizontal ruler segment and the second horizontal ruler segment, the two horizontal ruler segments are constrained to be perpendicular to each other.

[0020] The two levels in this embodiment can be flipped over each other, so this embodiment has two forms. In form one, the first level segment and the second level segment fit together and are combined into one; in form two, the first level segment and the second level segment are perpendicular to each other. When this embodiment is in form one, the overall form is no different from a conventional level, and the operation method is also the same. This form is suitable for measuring narrower objects to be measured. When the surface to be measured is a wide plane, form two is required to accurately detect the horizontality in all directions. When this embodiment is in form two, the whole is L-shaped, which can better measure the horizontality in two directions at the same time, and the detection fitting length in the two directions is long enough, which can effectively reduce the detection error.

[0021] The triangular clamp block in this embodiment is used to constrain the angle between the first horizontal ruler segment and the second horizontal ruler segment. When the triangular clamp block is slid so that the two horizontal ruler segments are respectively fitted with the first positioning surface and the second positioning surface on the triangular clamp block, this embodiment is in form 2. When the triangular clamp block is slid and the two horizontal ruler segments are closed so that the triangular clamp block is inserted into the receiving groove, the two horizontal ruler segments can be completely closed, and this embodiment is in form 1.

[0022] See Figure 1 , Figure 5 and Figure 6 When the two horizontal ruler segments are perpendicular to each other, the fitting part of the first positioning surface and the first horizontal ruler segment is the first abutting surface 140, and the first abutting surface is provided with a plurality of latch teeth 150, and the first positioning surface is provided with a plurality of latch grooves 330 adapted to the latch teeth. When the latch teeth and the latch grooves are engaged with each other, the first abutting surface and the first positioning surface are fixed to each other, and this effect can realize that the triangular clamping block is firmly fixed between the two horizontal ruler segments.

[0023] See Figure 1 , Figure 2 and Figure 3 The second level ruler segment is provided with a step groove 230 distributed along its length, so that the second level ruler segment is formed with a second abutting surface 240 and a sliding surface 250, and the sliding surface is provided with a sliding groove 260, and a sliding rod 340 fixedly connected to the triangular clamp block is slidably matched in the sliding groove, and a limiting cap 350 is provided at the outer end of the sliding rod, and the second abutting surface can be fitted with the second positioning surface. The purpose of setting the step groove is to increase the installation space of the triangular clamp block and increase its outer size. The larger the size of the triangular clamp block, the better the positioning effect of the two level ruler segments.

[0024] See Figure 6 The triangular block is provided with an arc-shaped groove 360 ​​for avoiding the shaft sleeve, and the upper surface of the triangular block is also provided with a paddle 370.

[0025] The shaft body is provided with a torsion spring, which can drive the two level ruler segments to rotate closer to each other until they are parallel and close to each other. The torsion spring not only allows the two level ruler segments to close automatically, but also cooperates with the clamping effect of the triangular clamping block to keep the embodiment fixed in the second form.

[0026] See Figure 5 A positioning groove 170 is provided on the inner side wall of the first level ruler segment and at one end away from the shaft sleeve, and a positioning protrusion 270 adapted to the positioning groove is provided on the inner side wall of the second level ruler segment. When the embodiment is in the first form, the positioning protrusion and the positioning groove are engaged with each other, which can prevent the two level ruler segments from deflecting, ensure that the two reference bottom surfaces are coplanar with each other, and protect the shaft body.

[0027] The present invention can be modified in various ways which are obvious to those skilled in the art, and such modifications are not considered to depart from the scope of the present invention. All such modifications which are obvious to those skilled in the art are intended to be included within the scope of the present claims.

Claims

1. A deformable magnetic level ruler, characterized in that: It comprises a first level ruler segment and a second level ruler segment, one end of the first level ruler segment is provided with a shaft sleeve, one end of the second level ruler segment is provided with a shaft body rotatably matched with the shaft sleeve, a first straight reference bottom surface is formed at the bottom of the first level ruler segment, a second straight reference bottom surface is formed at the bottom of the second level ruler segment, the two reference bottom surfaces are coplanarly arranged, and the shaft body is perpendicular to the second reference bottom surface; a plurality of permanent magnets are arranged inside the two level ruler segments; at least two columnar level bubbles are arranged on the first level ruler segment, and at least one columnar level bubble is arranged on the second level ruler segment, and the axis of the columnar level bubble is parallel to any reference bottom surface; A triangular clamp block is slidably mounted on the second horizontal ruler segment, and its sliding direction is consistent with the length direction of the second horizontal ruler segment. A first positioning surface and a second positioning surface perpendicular to each other are formed on the triangular clamp block, and the second positioning surface is parallel to the length direction of the second horizontal ruler segment and perpendicular to the second reference bottom surface; a receiving groove for accommodating the triangular clamp block is provided on the first horizontal ruler segment, and the two horizontal ruler segments are flipped outward and the triangular clamp block is dragged to move to one side of the shaft body. When the first positioning surface and the second positioning surface are simultaneously in contact with the first horizontal ruler segment and the second horizontal ruler segment, the two horizontal ruler segments are constrained to be perpendicular to each other.

2. The deformable magnetic level ruler according to claim 1, characterized in that: When the two horizontal ruler segments are perpendicular to each other, the fitting part between the first positioning surface and the first horizontal ruler segment is a first abutting surface, the first abutting surface is provided with a plurality of latch teeth, and the first positioning surface is provided with a plurality of latch grooves adapted to the latch teeth.

3. The deformable magnetic level ruler according to claim 1 or 2, characterized in that: The second horizontal ruler segment is provided with a step groove distributed along its length, so that a second abutment surface and a sliding surface are formed on the second horizontal ruler segment, and a sliding groove is provided on the sliding surface. A sliding rod fixedly connected to the triangular clamp block is slidably fitted in the sliding groove, and a limiting cap is provided at the outer end of the sliding rod, and the second abutment surface can be fitted with the second positioning surface.

4. The deformable magnetic level ruler according to claim 1, characterized in that: The triangular clamping block is provided with an arc-shaped groove for avoiding the shaft sleeve, and the upper surface of the triangular clamping block is also provided with a paddle.

5. The deformable magnetic level ruler according to claim 1, characterized in that: The shaft body is sleeved with a torsion spring, which can drive the two level rulers to rotate in sections close to each other until the two are parallel and in contact with each other.

6. The deformable magnetic level ruler according to claim 1, characterized in that: A positioning groove is provided on the inner side wall of the first level ruler segment and at one end away from the shaft sleeve, and a positioning protrusion adapted to the positioning groove is provided on the inner side wall of the second level ruler segment.

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