Combined gap measuring scale

Abstract

The utility model discloses a combined type gap measuring scale which comprises a first plate body and a second plate body which are respectively formed by three edges connected end to end, any acute angle edge of the first plate body is provided with scale marks, the scale marks are composed of a plurality of length scale lines, and the length scale lines are arranged on the first plate body. The numerical value represented by each length scale line is the distance from the point of the length scale line on the acute angle side to the other acute angle side, the second plate body is a right triangle, and at least one edge of the second plate body is provided with an indexing mark. According to the utility model, the first plate body and the second plate body are matched for use, so that other obstacles around cannot interfere with the caliper during measurement; the right angle can be used to determine whether to be perpendicular to the measured object. According to the utility model, the integrated characteristic of a vernier caliper is abandoned, mechanical structures such as a combined bayonet are not provided, the overall structure is simple, the manufacturing cost is low, and the measurement precision is improved.

Description

Technical fields:

[0001] This utility model relates to the field of measuring tool technology, specifically to a combined gap measuring ruler. Background technology:

[0002] A gap measuring gauge is a tool used to measure the gap between objects or the inner diameter of a pipe. With the development of technology, the precision requirements for the fit between existing mechanical parts are becoming increasingly stringent.

[0003] Existing vernier calipers have a perpendicular measuring jaw and scale markings. However, in situations with surrounding obstacles, especially during repair work, the presence of numerous components around the object being measured can cause the scale markings to come into contact with these unrelated parts, making it impossible to guarantee the perpendicularity of the jaw and the object. This results in measurement failure, requiring the removal of these unrelated components to create the necessary measuring conditions, which is time-consuming, labor-intensive, and reduces repair efficiency. Furthermore, when measuring the inner diameter of tubular parts, existing vernier calipers use the measuring jaw to press against the inner wall of the tube to find two points as the diameter measurement. However, in actual operation, frictional forces prevent accurate diameter finding in one step. A certain amount of pressure and rotation are required until the caliper can no longer penetrate deeply before a reading can be taken. When measuring softer workpieces, such as aluminum, the pressure applied and rotated is amplified by the tilt angle and further amplified by the edges. This point-to-surface contact can cause slight deformation of the workpiece surface, embedding the caliper and even creating dents. These deformations and dents reduce measurement accuracy and can damage the workpiece. Utility Model Content:

[0004] In view of this, the purpose of this utility model is to provide a combined gap measuring ruler.

[0005] The purpose of this utility model is achieved by the following technical solution: a combined gap measuring ruler, comprising a first plate and a second plate, each formed by three edges connected end to end. The first plate has a scale mark on any acute angle edge, the scale mark being composed of multiple length scale lines, each length scale line representing the distance from a point on the acute angle edge to another acute angle edge. The second plate is a right triangle, and at least one edge of the second plate has a graduation mark.

[0006] Furthermore, the intersection of the two acute-angled edges is the zero point of the scale mark, and the zero point of the scale mark is the intersection of any two edges of the second plate.

[0007] Furthermore, the scale markings are multiple evenly spaced length scale lines, and the graduation markings are multiple evenly spaced graduation scale lines.

[0008] Furthermore, in the cross-section of the first plate along the length scale line, the two edges adjacent to the edge where the length scale line is located are arc edges, and the value represented by the length scale line is the distance between the two farthest points in the cross-section.

[0009] Furthermore, the arc edge is a circular arc edge, and the center of the circular arc edge is on the length scale line.

[0010] Furthermore, the graduation values ​​of the graduation lines are 10, 20, and 50 graduations.

[0011] Advantages of this utility model:

[0012] This invention abandons the feature of a single-piece vernier caliper. The first plate can measure inner diameters with an accuracy of 0.1mm; rough measurements only require the first plate, thus improving measurement efficiency. When further precision is needed, the second plate is used in conjunction with the first plate to further improve accuracy by an order of magnitude. The measuring grip and scale marking surface of the first plate share a single surface, preventing interference from surrounding obstacles during measurement. Right angles are used to determine whether the caliper is perpendicular to the object being measured. This invention eliminates the need for combined jaws or other mechanical structures, resulting in a simple overall structure and low cost. The first plate makes line-surface contact with the workpiece, improving measurement accuracy. Attached image description:

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the first plate of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the second plate of this utility model;

[0016] Figure 3 This is a schematic diagram illustrating the process of using the first plate and the second plate of this utility model together.

[0017] Figure 4 This is a schematic diagram of the structure for measuring the gap in this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the first plate in Embodiment 2 of this utility model;

[0019] Figure 6 This utility model Figure 4 Sectional view AA;

[0020] Figure 7 This is a schematic diagram of the structure of the measuring pipe fitting of this utility model.

[0021] In the diagram, 100 is the first plate, 101 is the scale mark, 102 is the curved edge, 200 is the second plate, and 201 is the graduation mark. Detailed implementation method:

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1:

[0024] like Figure 1-4 As shown, this embodiment provides a combined gap measuring ruler, including a first plate 100 and a second plate 200, each formed by three edges connected end to end. The first plate 100 has a scale mark 101 on any acute-angled edge. The scale mark 101 consists of multiple evenly spaced length graduation lines, with each pair of adjacent length graduation lines equidistant from each other, representing a distance of 0.1 mm. Each length graduation line represents the distance from a point on one acute-angled edge to the other, and the value indicated by the length graduation line is the dimension of that distance. The second plate 200 is a right-angled triangle, and at least one edge of the second plate 200 has a graduation mark 201. In this embodiment, the hypotenuse of the second plate 200 has a graduation mark 201, which consists of multiple evenly spaced graduation lines. The zero point of the graduation mark 201 is the apex angle of the hypotenuse of the second plate 200. The graduation values ​​of the scale lines are 10, 20, and 50 divisions. In this embodiment, a graduation value of 10 is used, and the multiple graduation lines are arranged parallel to the edges they occupy. In this embodiment, to improve the measurement range and accuracy, the first plate 100 is a right-angled triangle, and the scale mark 101 is set on the hypotenuse of the first plate 100. The acute angle formed by the two edges connected by the length scale line is smaller than the other acute angle, and the angle of this acute angle is 30°. The first plate 100 and the second plate 200 are two independent separate structures, which are only used together during measurement.

[0025] During measurement, the two acute-angled edges of the first plate 100 simultaneously abut against the gap being measured, while one right-angled edge of the second plate 200 contacts the bearing surface and is perpendicular to the first plate 100. The other right-angled edge contacts the side of the first plate 100 and is perpendicular to the bearing surface. At this point, a certain length scale line coincides with the edge of the gap opening, and the value on this length scale line is the dimension of the gap being measured. Alternatively, keeping the first plate 100 stationary, the second plate 200 is moved until the zero point of the graduation mark 201 on the inclined side of the second plate 200 contacts the edge of the gap, and the inclined sides of the first plate 100 and the second plate 200 are in contact with each other. Reading is then performed, which can further improve the accuracy by an order of magnitude. This invention has a simple overall structure, and compared with existing vernier calipers, it does not have complex connecting clips, resulting in lower overall cost and ease of use.

[0026] Preferably, for greater ease of use, the first plate 100 and the second plate 200 in this embodiment are set to have the same overall size. At the same time, length scale lines and graduation scale lines are provided on the inclined sides of both the first plate 100 and the second plate 200, so that there is no need to distinguish between the first plate 100 and the second plate 200 when using them. They have the same function, making them more convenient to use and improving measurement efficiency.

[0027] Preferably, the intersection of the two acute-angled edges of the first plate 1 is the zero point of the length scale line, which can improve the measurement range of the device. However, in actual products, to prevent the sharpness from being too great and causing accidental injury, the apex of the acute angle can be appropriately cut or ground. The zero point of the graduation mark 201 is the intersection of any two edges of the second plate 200, which facilitates its use with the first plate 100 and obtains more accurate measurement dimensions.

[0028] Example 2:

[0029] like Figure 5-7As shown, this embodiment provides a combined gap measuring ruler. The difference from Embodiment 1 is that in the cross-section of the first plate 100 along the length scale line, the two adjacent edges of the edge containing the length scale line are arc edges 102. The arc edges 102 are circular arc edges, and the center of the circular arc edge on any cross-section lies on the length scale line. That is, the diameter of the circle of the circular arc edge on any cross-section coincides with the length scale line. The length scale line is the shortest distance line from a point on one acute-angled side to the other acute-angled side, and the value represented by the length scale line is the distance between the two farthest points in the cross-section. The two adjacent edges of the edge containing the length scale line are set as arc edges 102. The right-angled edge of the second plate 200 is provided with graduation marks 201, which are multiple evenly spaced graduation lines. The graduation values ​​of the graduation lines are 10, 20, and 50. In this embodiment, the graduation value is 10, and the multiple graduation lines are arranged parallel to the edge they are on. When measuring the inner diameter of a tube, the two adjacent edges of the length scale line fit perfectly against the inner wall of the tube, thus improving the accuracy of the measurement.

[0030] During measurement, the two acute-angled edges of the first plate 100 simultaneously abut against the inner wall of the pipe being measured, with one edge tightly against the inner wall of the pipe, and the scale line and the pipe opening remaining parallel. At this time, a certain length scale line coincides with the opening edge of the gap or inner diameter of the pipe being measured, and the value on this length scale line is the dimension of the gap or inner diameter of the pipe being measured. Alternatively, keeping the first plate 100 stationary, the right-angled apex of the second plate 200 contacts the edge of the pipe opening, and the edge of the first plate 100 tightly against the inner wall of the pipe and the edge of the second plate 200 with the graduation mark 201 contact each other. Reading is then performed, further improving the accuracy by an order of magnitude, resulting in a more precise measurement value.

[0031] It should be noted that relational terms such as "first" and "second" in this article are used only to distinguish different entities or operations and do not necessarily imply an actual relationship or fixed order between these entities or operations. Furthermore, the terms "including," "comprising," and their variations are intended to cover non-exclusive inclusion relationships. That is, when describing an appearance, if it is mentioned that a series of elements are included, the statement is not limited to the explicitly listed elements but also covers other alternative elements not explicitly listed. For example, including a certain edge includes all alternative structures greater than the number of that edge.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A combined gap measuring ruler, characterized in that, The first plate and the second plate are both formed by three edges connected end to end. The first plate has a scale mark on any acute angle edge. The scale mark is composed of multiple length scale lines. The value represented by each length scale line is the distance from the point of the length scale line on the acute angle edge to the other acute angle edge. The second plate is a right triangle. At least one edge of the second plate has a graduation mark.

2. The combined gap measuring ruler according to claim 1, characterized in that, The intersection of the two acute-angled sides is the zero point of the scale mark, and the zero point of the scale mark is the intersection of any two edges of the second plate.

3. A combined gap measuring ruler according to claim 1, characterized in that, The scale markings are multiple length scale lines arranged at even intervals, and the graduation markings are multiple graduation scale lines arranged at even intervals.

4. A combined gap measuring ruler according to claim 3, characterized in that, In the cross-section of the first plate along the length scale line, the two adjacent edges of the edge where the length scale line is located are arc edges, and the value represented by the length scale line is the distance between the two farthest points in the cross-section.

5. A combined gap measuring ruler according to claim 4, characterized in that, The arc edge is a circular arc edge, and the center of the circular arc edge is on the length scale line.

6. A combined gap measuring ruler according to claim 5, characterized in that, The graduation values ​​of the graduation lines are 10, 20, and 50.

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