A measuring device

Abstract

The application discloses a measuring device. The measuring device comprises a ruler provided with a size scale; a first laser part movably arranged on the ruler and used for emitting a first linear laser along a first direction and marking the size scale on the ruler; and a second laser part movably arranged on the ruler and used for emitting a second linear laser along a second direction and marking the size scale on the ruler. The first direction and the second direction are symmetrical about a direction perpendicular to the distribution direction of the size scale, the first linear laser and the second linear laser intersect, and the laser colors of the first linear laser and the second linear laser are different. In the above manner, the measuring device can realize the functions of height difference rapid comparison and height difference conversion measurement in a low-cost scheme, so that the comprehensive use cost of the measuring device is low.

Description

Technical Field

[0001] The present application relates to the technical field of measuring equipment, and in particular to a measuring device. Background Art

[0002] In the field of industrial manufacturing, measuring tools are often used to detect height differences.

[0003] The current height difference measurement tools use sensor distance measurement solutions, which have high manufacturing costs. In the industrial manufacturing field, the consumption of height difference measurement tools is large, and once they are damaged, they are not easy to repair, resulting in high overall use costs. Summary of the Invention

[0004] The present application mainly provides a measuring device to solve the problem of high cost of using height difference measuring tools.

[0005] To solve the above technical problems, the present application adopts a technical solution: providing a measuring device. The measuring device includes: a ruler provided with a dimension scale; a first laser element movably disposed on the ruler, configured to emit a first linear laser in a first direction and mark the dimension scale on the ruler; and a second laser element movably disposed on the ruler, configured to emit a second linear laser in a second direction and mark the dimension scale on the ruler. The first and second directions are symmetrical about a direction perpendicular to the distribution direction of the dimension scale, the first and second linear lasers intersect, and the first and second linear lasers have different laser colors.

[0006] In some embodiments, the first laser component includes a first laser source and a first housing. The first laser source is disposed in the first housing, and the first housing is provided with a first emission port. The first laser source emits a first linear laser from the first emission port. The first housing is further provided with a first marking portion, and the first marking portion is used to mark the size scale on the ruler.

[0007] The second laser component includes a second laser source and a second box body. The second laser source is arranged in the second box body, and the second box body is provided with a second exit port. The second laser source emits a second linear laser from the second exit port. The second box body is also provided with a second marking portion, and the second marking portion is used to mark the size scale on the ruler.

[0008] In some embodiments, the first emission port and the second emission port are both linear emission ports, and the first laser source and the second laser source respectively generate linear lasers through the corresponding linear emission ports.

[0009] In some embodiments, the first marking portion is a first reference plane on the first box body, the first reference plane is aligned with the first exit port and is perpendicular to the distribution direction of the size scale; the second marking portion is a second reference plane on the second box body, the second reference plane is aligned with the second exit port and is perpendicular to the distribution direction of the size scale.

[0010] In some embodiments, the angle between the first direction and the first reference plane is 45 degrees, and the angle between the second direction and the second reference plane is 45 degrees.

[0011] In some embodiments, the first laser component further includes a first magnetic component, and the first box body is magnetically attracted to the support ruler through the first magnetic component;

[0012] The second laser component further includes a second magnetic component, and the second box body is magnetically attracted to the supporting ruler through the second magnetic component.

[0013] In some embodiments, the bottom wall of the first box body abuts against the support ruler, and the first magnetic member is built into the first box body and is located on a side of the bottom wall of the first box body facing away from the size scale;

[0014] The bottom wall of the second box body abuts against the supporting ruler, and the second magnetic member is built into the second box body and is located at a side of the bottom wall of the second box body away from the size scale.

[0015] In some embodiments, the ruler includes a scale plate and a baffle connected in a bent manner, the size scale is provided on the scale plate, the bottom wall of the first box body and the bottom wall of the second box body are magnetically attracted to the scale plate, and the baffle is used to stop and limit the first box body and the second box body.

[0016] In some embodiments, the support ruler is an L-shaped structure.

[0017] In some embodiments, a slit is provided on the support ruler, the size scale is symmetrically distributed about the slit, and the first laser element and the second laser element are symmetrically arranged on both sides of the slit.

[0018] In some embodiments, the laser colors of the first linear laser and the second linear laser are respectively one of yellow and blue.

[0019] In some embodiments, the measuring device also includes a wandering cursor, which is used to emit a marking laser in a direction perpendicular to the distribution direction of the size scale, and the wandering cursor is also used to mark the marking laser corresponding to the size scale on the ruler; the laser color of the marking laser is different from the laser color of the first linear laser and the second linear laser.

[0020] In some embodiments, the wandering cursor includes a bracket and a marking laser source, the marking laser source is connected to the bracket, the bracket is provided with a third marking portion aligned with the position of the marking laser source, the bracket is movably disposed on the ruler, and the third marking portion is used to mark the marking laser corresponding to the size scale on the ruler.

[0021] In some embodiments, the third marking portion is a strip-shaped slit, the strip-shaped slit is aligned with the marking laser source, and the strip-shaped slit is used to correspond to the size scale on the ruler.

[0022] The beneficial effect of the present application is that, different from the prior art, the present application discloses a measuring device. The present application sets a first laser element and a second laser element on a ruler, and uses the first linear laser and the second linear laser emitted by each of them, as well as the mark spacing between the first laser element and the second laser element, to determine the height difference L between the light at the intersection of the first linear laser and the second linear laser and the plane where the two lasers are emitted. The height difference L can be used as a standard height difference. The height difference L uses the plane where the two lasers are emitted as a reference plane, and through the position and color of the light displayed by the first linear laser and the second linear laser on the surface of the object to be measured, the size relationship between the height difference ΔL of the object to be measured to the reference plane and the standard height difference L can be determined intuitively and quickly, so that a quick comparison between the height difference and the reference can be performed; further, by displaying the superimposed light obtained by the first linear laser and the second linear laser on the surface of the object to be measured, , and can also conveniently obtain the height difference ΔL between the measured object and the reference plane, that is, the height difference measurement can be converted into the plane distance measurement on the ruler, and the height difference detection can be realized intuitively and quickly; therefore, the measuring device provided by the present application can realize the functions of rapid height difference comparison and height difference conversion measurement through the ruler, the first laser component and the second laser component. Compared with the scheme of using sensor distance measurement, the ruler, the first laser component and the second laser component used in the scheme of the present application are all relatively low in cost, that is, the functions of rapid height difference comparison and height difference conversion measurement can be realized with a low-cost scheme; further, when any one of the ruler, the first laser component and the second laser component is damaged, it can be replaced, which can avoid the overall scrapping of the measuring device due to damage to a small number of components, thereby improving the utilization rate of the measuring device and effectively reducing the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0024] Figure 1 This is a schematic structural diagram of an embodiment of a measuring device provided by the present application;

[0025] Figure 2 Yes Figure 1 A schematic diagram of the structure of the support ruler in the measuring device shown;

[0026] Figure 3 Yes Figure 1 A schematic diagram of the front structure of the measuring device shown;

[0027] Figure 4 Yes Figure 3 Schematic diagram of the first result when the measuring device is used for rapid comparison of height differences;

[0028] Figure 5 Yes Figure 3 Schematic diagram of the second result when the measuring device is used for rapid comparison of height differences;

[0029] Figure 6 Yes Figure 3 Schematic diagram of the third result when the measuring device is used for rapid comparison of height differences;

[0030] Figure 7 Yes Figure 1 A schematic diagram of the measurement device shown in FIG. 1 for use in height difference conversion measurement;

[0031] Figure 8 Yes Figure 1 Schematic diagram of the structure of the moving cursor in the measuring device shown. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0033] The terms "first", "second" and "third" in the embodiments of the present application are only used for descriptive purposes and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second" and "third" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally also include steps or units that are not listed, or may optionally also include other steps or units inherent to these processes, methods, products or devices.

[0034] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] This application provides a measuring device 100, see Figures 1 to 3 , Figure 1 is a structural diagram of an embodiment of a measuring device provided by this application, Figure 2 Yes Figure 1 The schematic diagram of the structure of the measuring device shown is as follows, Figure 3 Yes Figure 1 Schematic diagram of the front view of the measuring device shown.

[0036] The measuring device 100 can be used to quickly compare and convert height differences of a measured object, and provide a more intuitive and convenient measurement method with a low-cost tool.

[0037] The measuring device 100 includes a ruler 10, a first laser element 20 and a second laser element 30. The first laser element 20 and the second laser element 30 are both arranged on the ruler 10 to use the linear laser emitted by the first laser element 20 and the second laser element 30 to quickly compare the height difference of the object being measured.

[0038] The supporting ruler 10 is provided with a size scale 12, which is used to mark the size.

[0039] In this embodiment, a slit 14 is provided on the support ruler 10, and the size scale 12 is symmetrically distributed about the slit 14, that is, the position of the slit 14 is used as the mark zero point, and the scale size marking the zero point can be marked as zero or a set value.

[0040] Optionally, a marking line may be provided on the ruler 10 instead of the slit 14 , or the size scale 12 may be distributed along its distribution direction from small to large in terms of size.

[0041] In this embodiment, the support ruler 10 is a smooth L-shaped structure, which can be made of angle iron or the like. A slit 14 is provided on one side of the L-shaped structure, and a dimension scale 12 is etched thereon. Angle iron is stable, readily available, and inexpensive, which helps reduce the cost of the measuring device 100. The support ruler 10 can also be made of materials such as carbon steel.

[0042] Optionally, the supporting ruler 10 may also be a flat plate structure with size scales 12 provided thereon.

[0043] like Figures 1 to 3 As shown, the first laser element 20 is movably provided on the ruler 10, and is used for emitting a first linear laser along a first direction A and marking its size scale on the ruler 10; the second laser element 30 is movably provided on the ruler 10, and is used for emitting a second linear laser along a second direction B and marking its size scale on the ruler 10; wherein, the first direction A and the second direction B are symmetrical about a direction perpendicular to the distribution direction of the size scale 12, and the first linear laser and the second linear laser intersect, and the laser colors of the first linear laser and the second linear laser are different.

[0044] Lasers have the characteristics of high brightness, good directionality, and high monochromaticity. Using the principle of color superposition, the superposition of different colors will produce another color, and the superposition of two different colors of lasers will also produce another color. For example, the superposition of yellow laser and blue laser will produce green, and green is also significantly different from yellow and blue, making it easy to observe; or, the superposition of red laser and blue laser will produce purple.

[0045] In this embodiment, the laser colors of the first linear laser and the second linear laser are yellow and blue respectively, wherein the intersection of the first linear laser and the second linear laser is formed by superposition of the yellow linear laser and the blue linear laser to form a green linear laser.

[0046] Furthermore, the first laser element 20 and the second laser element 30 also respectively mark their own size scales on the ruler 10, and the laser emission position on the first laser element 20 and the position of the marked size scale are relatively fixed, and the laser emission position on the second laser element 30 and the position of the marked size scale are relatively fixed. Therefore, the scale spacing marked between the first laser element 20 and the second laser element 30 can be used to obtain the spacing S between the laser emission positions of the first laser element 20 and the second laser element 30. The first direction A and the second direction B are symmetrical about the direction perpendicular to the distribution direction of the size scale 12. It can be seen that the angle α between the first direction A and the second direction B and the surface of the size scale 12 is fixed. Therefore, using trigonometric functions, the height difference L from the intersection of the first linear laser and the second linear laser to the plane where the two laser emission positions are located can be determined, where

[0047] The angle α between the first direction A and the second direction B and the surface where the size scale 12 is located can be 30 degrees, 45 degrees, 60 degrees, etc. For example, if the angle α is 45 degrees, then

[0048] In this embodiment, the angle α is 45 degrees, which allows the user to intuitively obtain the size of the height difference L through the scale size on the ruler 10 .

[0049] When measuring or comparing height differences, if the plane where the two laser beams are emitted is used as the reference plane, the height difference L can serve as the reference for height difference comparison or the height difference measurement value. If the surface where the scale 12 of the support ruler 10 is located is used as the reference plane, and the distance between the laser emission positions of the first laser element 20 and the second laser element 30 and the scale 12 on the support ruler 10 is also fixed, this distance can be measured in advance and determined as a fixed value. The sum of this fixed value and the height difference L is the height difference between the intersection of the first and second laser beams and the reference plane.

[0050] Furthermore, the first laser element 20 and the second laser element 30 are symmetrically arranged on both sides of the slit 14 , and the intersection line of the first linear laser and the second linear laser can be visually observed through the slit 14 .

[0051] Optionally, the first laser element 20 and the second laser element 30 may also be asymmetrically disposed on both sides of the slit 14 , or simultaneously disposed on one side of the slit 14 .

[0052] In this embodiment, the plane where the two lasers are emitted is used as the reference plane. The color of the first linear laser is yellow, the color of the second linear laser is blue, and the first laser element 20 is located on the left side of the slit 14 , while the second laser element 30 is located on the right side of the slit 14 .

[0053] See also Figures 3 to 6 , Figure 4 is as shown Figure 3 a schematic diagram of the first result when the measuring device shown is used for rapid comparison of height differences Figure 5 is as shown Figure 3 a schematic diagram of the second result when the measuring device shown is used for rapid comparison of height differences Figure 6 is as shown Figure 3 a schematic diagram of the third result when the measuring device shown is used for rapid comparison of height differences

[0054] When performing rapid comparison detection of height differences, the positions of the first laser part 20 and the second laser part 30 on the support ruler 10 are pre-adjusted to obtain the required reference height difference, that is, the height difference L. Then, each measured object is detected to perform rapid comparison of height differences. There are three results for this detection, namely the height differences ΔL = L, ΔL > L, and ΔL < L from the measured object to the reference plane, and all can be directly observed visually to quickly obtain the comparison result.

[0055] Specifically, as shown Figure 4 in the figure, if a green light is shown on the surface of the measured object, then ΔL = L; as shown Figure 5 in the figure, if two lights are shown on the surface of the measured object and the yellow light is on the left side of the blue light, it means that ΔL < L; as shown Figure 6 in the figure, if two lights are shown on the surface of the measured object and the blue light is on the left side of the yellow light, it means that ΔL > L.

[0056] When performing height difference conversion measurement, by adjusting the distance S between the first laser part 20 and the second laser part 30, the light obtained after the superposition of the first linear laser and the second linear laser is shown on the surface of the measured object, and thus the height difference L from the measured object to the reference plane can be obtained.

[0057] The present application arranges a first laser element 20 and a second laser element 30 on a ruler 10, and utilizes the first linear laser and the second linear laser emitted by each, as well as the mark spacing S between the first laser element 20 and the second laser element 30, to determine the height difference L between the light at the intersection of the first linear laser and the second linear laser and the plane where the two lasers are emitted. The height difference L can be used as a standard height difference, and the height difference L uses the plane where the two lasers are emitted as a reference plane. By using the position and color of the light displayed by the first linear laser and the second linear laser on the surface of the measured object, the size relationship between the height difference ΔL of the measured object to the reference plane and the standard height difference L can be intuitively and quickly determined, and a rapid comparison between the height difference and the reference can be performed. Furthermore, by displaying the superimposed light obtained by the first linear laser and the second linear laser on the surface of the measured object, the height difference ΔL of the measured object to the reference plane can also be conveniently obtained, and the height difference measurement can be converted into a plane distance measurement on the ruler 10, so that intuitive and rapid height difference detection can be achieved.

[0058] Therefore, the measuring device 100 provided in the present application can realize the above-mentioned functions of rapid height difference comparison and height difference conversion measurement through the ruler 10, the first laser element 20 and the second laser element 30. Compared with the solution using sensors for ranging, the cost of the ruler 10, the first laser element 20 and the second laser element 30 used in the solution of the present application is relatively low, that is, the functions of rapid height difference comparison and height difference conversion measurement can be realized with a low-cost solution.

[0059] Furthermore, when any one of the ruler 10, the first laser component 20 and the second laser component 30 is damaged, it can be replaced, which can avoid the entire measuring device 100 being scrapped due to damage to a small number of components, thereby improving the utilization rate of the measuring device 100 and effectively reducing the cost of use.

[0060] like Figure 3 As shown, in this embodiment, the first laser component 20 includes a first laser source 21 and a first box body 22. The first laser source 21 is arranged in the first box body 22, and the first box body 22 is provided with a first exit port 220. The first laser source 21 emits a first linear laser from the first exit port 220. The first box body 22 is also provided with a first marking portion 222. The first marking portion 222 is used to mark the size scale on the ruler 10; the second laser component 30 includes a second laser source 31 and a second box body 32. The second laser source 31 is arranged in the second box body 32, and the second exit port 320 is provided on the second box body 32. The second laser source 31 emits a second linear laser from the second exit port 320. The second box body 32 is also provided with a second marking portion 322. The second marking portion 322 is used to mark the size scale on the ruler 10.

[0061] The first box body 22 can provide protection for the first laser source 21, and can also mark the size scale corresponding to the scale on the support ruler 10 through the first marking portion 222 set thereon, and is also convenient for the user to hold the first laser element 20 and can easily adjust its position on the support ruler 10; the second box body 32 can provide protection for the second laser source 31, and can also mark the size scale corresponding to the scale on the support ruler 10 through the second marking portion 322 set thereon, and is also convenient for the user to hold the second laser element 30 and can easily adjust its position on the support ruler 10.

[0062] In this embodiment, the first exit port 220 and the second exit port 320 are both linear exit ports, and the first laser source 21 and the second laser source 31 respectively form linear lasers through the corresponding linear exit ports, so that the first laser source 21 and the second laser source 31 can adopt non-linear laser sources, which can further reduce costs.

[0063] Optionally, the first laser source 21 and the second laser source 31 may also be linear laser sources, which can directly emit linear lasers.

[0064] In this embodiment, the first marking portion 222 is a first reference plane on the first box body 22, which is aligned with the first exit port 220 and perpendicular to the distribution direction of the size scale 12; the second marking portion 322 is a second reference plane on the second box body 32, which is aligned with the second exit port 320 and perpendicular to the distribution direction of the size scale 12, so that the distance between the first reference plane and the second reference plane is the distance S between the first exit port 220 and the second exit port 320, so as to facilitate a more subjective acquisition of the height difference L.

[0065] Among them, the bottom surface of the first box body 22 faces the size scale 12 on the support ruler 10, and the first reference plane is perpendicular to the bottom surface of the first box body 22 and is arranged adjacent to the bottom surface; the bottom surface of the second box body 32 faces the size scale 12 on the support ruler 10, and the second reference plane is perpendicular to the bottom surface of the second box body 32 and is arranged adjacent to the bottom surface.

[0066] Optionally, the first marking portion 222 and the second marking portion 322 may also be convex dots, and the corresponding size scale on the ruler 10 is set in the strip groove corresponding to the convex dot, and the convex dot set in the strip groove can mark the corresponding scale position.

[0067] In this embodiment, the angle between the first direction A and the second direction B and the distribution direction of the size scale 12 is 45 degrees, that is, the clamping angle between the first direction A and the first reference plane is 45 degrees, and the clamping angle between the second direction B and the second reference plane is 45 degrees, so that the user can intuitively obtain the size of the height difference L.

[0068] Furthermore, the first laser component 20 also includes a first magnetic component 23, and the first box body 22 is magnetically attracted to the ruler 10 through the first magnetic component 23; the second laser component 30 also includes a second magnetic component 33, and the second box body 32 is magnetically attracted to the ruler 10 through the second magnetic component 33. By setting the first magnetic component 23 and the second magnetic component 33, the connection and disconnection relationship between the first laser component 20 and the second laser component 30 and the ruler 10 can be quickly realized, which is convenient for the user to manually move the position of the first laser component 20 and the second laser component 30 on the ruler 10.

[0069] The first magnetic member 23 can be disposed on the bottom surface of the first box body 22 and facing the size scale 12 , and the second magnetic member 33 can be disposed on the bottom surface of the second box body 32 and facing the size scale 12 .

[0070] In this embodiment, the bottom wall of the first box body 22 abuts against the support ruler 10, and the first magnetic member 23 is built into the first box body 22 and is located on the side of the bottom wall of the first box body 22 away from the size scale 12, so that the bottom wall of the first box body 22 can be magnetically attached to the support ruler 10, and then the first reference surface can accurately mark the position on the size scale 12; the bottom wall of the second box body 32 abuts against the support ruler 10, and the second magnetic member 33 is built into the second box body 32 and is located on the side of the bottom wall of the second box body 32 away from the size scale 12, so that the bottom wall of the second box body 32 can be magnetically attached to the support ruler 10, and then the second reference surface can accurately mark the position on the size scale 12.

[0071] Among them, such as Figure 2 As shown, the ruler 10 includes a scale plate 11 and a baffle 13 that are connected in a bent manner. The scale plate 11 is provided with a size scale 12. The bottom wall of the first box body 22 and the bottom wall of the second box body 32 are magnetically attracted to the scale plate 11. The baffle 13 is used to stop and limit the first box body 22 and the second box body 32, and can further support the first laser component 20 and the second laser component 30 to prevent the first laser component 20 and the second laser component 30 from easily falling off from the ruler 10 due to insufficient magnetic attraction.

[0072] The baffle 13 may be perpendicular to the scale plate 11 , or the bending angle between the baffle 13 and the scale plate 11 may be an acute angle or an obtuse angle, such as 70 degrees, 80 degrees, 100 degrees or 110 degrees.

[0073] In this embodiment, the support ruler 10 is an L-shaped structure, and the two side plates of the L-shaped structure are the scale plate 11 and the baffle 13 mentioned above, wherein the scale plate 11 and the baffle 13 are substantially vertically arranged.

[0074] Alternatively, the supporting ruler 10 may include only the scale plate 11 .

[0075] See also Figure 1 and Figure 7,in Figure 7 Yes Figure 1 Schematic diagram of the measurement device shown in the figure for use in height difference conversion measurement.

[0076] Furthermore, the measuring device 100 also includes a wandering cursor 40, which is used to emit a marking laser in a direction perpendicular to the distribution direction of the size scale 12, and the wandering cursor 40 also marks that the marking laser corresponds to the size scale on the ruler 10; the laser color of the marking laser is different from the laser color of the first linear laser and the second linear laser, and thus the marking laser and the first linear laser or the second linear laser will also show a new color at the intersection. By utilizing this feature, the position of the wandering cursor 40 on the ruler 10 is moved so that the new color is displayed on the surface of the object to be measured, and the distance S between the marking part on the first laser element 20 and the marking part of the wandering cursor 40 is determined, and the height difference L between the object to be measured and the reference plane can be obtained through the trigonometric function relationship, that is, the height difference L that is difficult to measure is converted into the distance S in the horizontal direction, so that the user can measure the height difference L more intuitively and conveniently.

[0077] In this embodiment, the color of the first linear laser is yellow, the color of the second linear laser is blue, and the color of the marking laser is red. The superposition of red and yellow can show orange, and the superposition of red and blue can show purple.

[0078] Among them, the user places the wandering cursor 40 on the size scale 12, and moves the wandering cursor 40 in the square or reverse direction of the size scale 12, so that the marking laser and the yellow light of the first linear laser on the surface of the measured object overlap and display orange light, or the marking laser and the blue light of the second linear laser on the surface of the measured object overlap and display purple light, and then obtains the height difference L between the measured object and the reference plane through the above-mentioned trigonometric function method.

[0079] See Figure 8 , Figure 8 Yes Figure 1 A schematic diagram of the structure of the mobile cursor in the measuring device is shown. Specifically, the mobile cursor 40 includes a bracket 41 and a marking laser source 42. The marking laser source 42 is connected to the bracket 41. The bracket 41 is provided with a third marking portion 410 aligned with the position of the marking laser source 42. The bracket 41 is movably mounted on the support scale 10. The third marking portion 410 is used to mark the size scale on the support scale 10 corresponding to the marking laser.

[0080] Among them, the bracket 41 is a plate, and the bracket 41 can also be magnetically attracted to the ruler 10, or the bracket 41 can be attached to the ruler 10 under the pressure of the user. The third marking part 410 is a strip slit on the bracket 41, and the strip slit is aligned with the marking laser source 42, which is used to correspond to the size scale on the ruler 10, that is, the corresponding size scale can be directly observed through the strip slit.

[0081] In this embodiment, the angle α is 45 degrees, and the spacing S between the first reference plane or the second reference plane and the corresponding size scale of the strip slit is the height difference L between the surface of the measured object and the reference plane, so the height difference L can be obtained more intuitively and conveniently.

[0082] Optionally, the third marking portion 410 may also be a circular hole or a marking line, etc., which is aligned with the scale on the size scale 12 to determine the distance between it and the first reference plane or the second reference plane.

[0083] The bracket 41 may also be in other structural shapes, such as a card-shaped structure, which can be clamped on the support ruler 10 and can slide along the support ruler 10 to facilitate adjustment of its position on the support ruler 10.

[0084] The marking laser source 42 may be a linear laser source, which emits linear light, which can be easily superimposed with the first linear laser or the second linear laser, making it easier for users to observe the light of a new color; or the laser it emits may be dot-shaped.

[0085] Different from the prior art, the present application discloses a measuring device. The present application sets a first laser element and a second laser element on a ruler, and uses the first linear laser and the second linear laser emitted by each of them, as well as the mark spacing between the first laser element and the second laser element, to determine the height difference L between the light at the intersection of the first linear laser and the second linear laser and the plane where the two lasers are emitted. The height difference L can be used as a standard height difference. The height difference L uses the plane where the two lasers are emitted as a reference plane, and through the position and color of the light displayed by the first linear laser and the second linear laser on the surface of the measured object, the size relationship between the height difference ΔL between the measured object and the reference plane and the standard height difference L can be intuitively and quickly determined, so that a quick comparison between the height difference and the reference can be performed; further, by displaying the superimposed light obtained by the first linear laser and the second linear laser on the surface of the measured object , and can also conveniently obtain the height difference ΔL between the measured object and the reference plane, that is, the height difference measurement can be converted into the plane distance measurement on the ruler, and the height difference detection can be realized intuitively and quickly; therefore, the measuring device provided by the present application can realize the functions of rapid height difference comparison and height difference conversion measurement through the ruler, the first laser component and the second laser component. Compared with the scheme of using sensor distance measurement, the ruler, the first laser component and the second laser component used in the scheme of the present application are all relatively low in cost, that is, the functions of rapid height difference comparison and height difference conversion measurement can be realized with a low-cost scheme; further, when any one of the ruler, the first laser component and the second laser component is damaged, it can be replaced, which can avoid the overall scrapping of the measuring device due to damage to a small number of components, thereby improving the utilization rate of the measuring device and effectively reducing the cost of use.

[0086] The above description is merely an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A height difference measurement method based on a measuring device, characterized in that: A measuring device is included, the measuring device comprising: A ruler with a size scale; a first laser element, movably disposed on the support ruler, for emitting a first linear laser along a first direction and marking a size scale thereof on the support ruler; A second laser element is movably disposed on the support ruler, and is used to emit a second linear laser along a second direction and mark a size scale on the support ruler; The first direction and the second direction are symmetrical about a direction perpendicular to the distribution direction of the size scale, and the first linear laser and the second linear laser intersect, and the first linear laser and the second linear laser have different laser colors; The ruler is provided with a slit, the size scale is symmetrically distributed about the slit, and the first laser element and the second laser element are symmetrically arranged on both sides of the slit; The height difference measurement method comprises the following steps: First, the positions of the first laser element and the second laser element on the support scale are pre-adjusted to determine the distance between their markings. Furthermore, based on the angle between the dimension scale and the first and second directions, the height difference L between the intersection of the first and second linear lasers and a reference plane is determined, where the reference plane is the plane where the two lasers are emitted. Then, the object to be measured is placed above the measuring device so that the first linear laser and the second linear laser are projected onto the surface of the object to be measured; Finally, by observing the display position and color of the light on the surface of the object to be measured, the magnitude relationship between the height difference ΔL between the object to be measured and the reference plane and the height difference L can be determined intuitively and quickly.

2. The measuring method according to claim 1, wherein The first laser component includes a first laser source and a first housing. The first laser source is disposed in the first housing, and the first housing is provided with a first emission port. The first laser source emits a first linear laser from the first emission port. The first housing is further provided with a first marking portion, and the first marking portion is used to mark the size scale on the ruler. The second laser component includes a second laser source and a second box body. The second laser source is arranged in the second box body, and the second box body is provided with a second exit port. The second laser source emits a second linear laser from the second exit port. The second box body is also provided with a second marking portion, and the second marking portion is used to mark the size scale on the ruler.

3. The measuring method according to claim 2, characterized in that The first emission port and the second emission port are both linear emission ports, and the first laser source and the second laser source respectively generate linear lasers through the corresponding linear emission ports.

4. The measuring method according to claim 3, characterized in that The first marking portion is a first reference plane on the first box body, which is aligned with the first exit port and perpendicular to the distribution direction of the size scale; the second marking portion is a second reference plane on the second box body, which is aligned with the second exit port and perpendicular to the distribution direction of the size scale.

5. The measuring method according to claim 4, characterized in that An angle between the first direction and the first reference plane is 45 degrees, and an angle between the second direction and the second reference plane is 45 degrees.

6. The measuring method according to claim 2, characterized in that The first laser component further includes a first magnetic component, and the first box body is magnetically attracted to the support ruler through the first magnetic component; The second laser component further includes a second magnetic component, and the second box body is magnetically attracted to the supporting ruler through the second magnetic component.

7. The measuring method according to claim 6, characterized in that The bottom wall of the first box body abuts against the support ruler, and the first magnetic member is built into the first box body and is located on a side of the bottom wall of the first box body facing away from the size scale; The bottom wall of the second box body abuts against the supporting ruler, and the second magnetic member is built into the second box body and is located at a side of the bottom wall of the second box body away from the size scale.

8. The measuring method according to claim 7, characterized in that: The ruler includes a scale plate and a baffle connected in a bent manner, the scale plate is provided with the size scale, the bottom wall of the first box body and the bottom wall of the second box body are magnetically attracted to the scale plate, and the baffle is used to stop and limit the first box body and the second box body.

9. The measuring method according to claim 8, characterized in that The supporting ruler is an L-shaped structure.

10. The measurement method according to claim 1, characterized in that The laser colors of the first linear laser and the second linear laser are respectively one of yellow and blue.

11. The measuring method according to claim 1, wherein: The measuring device also includes a wandering cursor, which is used to emit a marking laser in a direction perpendicular to the distribution direction of the size scale, and the wandering cursor is also used to mark the size scale on the ruler corresponding to the marking laser; the laser color of the marking laser is different from the laser color of the first linear laser and the second linear laser.

12. The measuring method according to claim 11, characterized in that The wandering cursor includes a bracket and a marking laser source, the marking laser source is connected to the bracket, the bracket is provided with a third marking portion aligned with the position of the marking laser source, the bracket is movably arranged on the ruler, and the third marking portion is used to mark the marking laser corresponding to the size scale on the ruler.

13. The measuring method according to claim 12, characterized in that: The third marking portion is a strip-shaped slit, which is aligned with the marking laser source and is used to correspond to the size scale on the ruler.

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