CN115711580A - a measuring device - Google Patents

Abstract

The application discloses a measuring device. The measuring device includes: a support bar, which is provided with a scale scale; a first laser part, which is movably arranged on the support bar, is used to emit a first linear laser along a first direction and mark its size scale on the support bar ; The second laser part is movably arranged on the support bar for emitting the second line-shaped laser along the second direction and marking its size scale on the support bar; wherein, the first direction and the second direction are perpendicular to the dimension The distribution direction of the scale is symmetrical in direction, and the first line-shaped laser and the second line-shaped laser intersect, and the laser colors of the first line-shaped laser and the second line-shaped laser are different. Through the above method, the measuring device provided by the present application can realize the functions of fast comparison of height difference and conversion measurement of height difference with a low-cost solution, so that the comprehensive use cost of the measuring device is low.

Description

a measuring device

technical field

The present application relates to the technical field of measuring equipment, in particular to a measuring device.

Background technique

In the field of industrial manufacturing, measuring tools are often used for height difference detection.

The current height difference measurement tool is realized by the sensor ranging scheme, and its manufacturing cost is high. In the field of industrial manufacturing, the height difference measurement tool consumes a lot, and it is not easy to repair once it is damaged, which leads to its overall use. higher cost.

Contents of the invention

The present application mainly provides a measuring device to solve the problem of high use cost of height difference measuring tools.

In order to solve the above technical problems, a technical solution adopted by the present application is to provide a measuring device. The measuring device includes: a support bar, which is provided with a size scale; a first laser part, which is movably arranged on the support bar, is used to emit a first linear laser along a first direction and mark its position on the support bar. The size scale on the top; the second laser part is movably arranged on the support bar, and is used to emit the second line laser along the second direction and mark its size scale on the support bar; wherein, the first The first direction and the second direction are symmetrical with respect to the direction perpendicular to the distribution direction of the size scale, and the first line-shaped laser and the second line-shaped laser intersect, and the first line-shaped laser and the The laser color of the second line laser is different.

In some embodiments, the first laser component includes a first laser source and a first box, the first laser source is disposed in the first box, and the first box is provided with a first An exit port, the first laser source emits a first line-shaped laser from the first exit port, and the first box body is also provided with a first marking part, which is used to mark the support ruler size scale on

The second laser component includes a second laser source and a second box, the second laser source is arranged in the second box, and the second box is provided with a second exit port, the first The second laser source emits a second line-shaped laser from the second output port, and the second box body is further provided with a second marking part, and the second marking part is used to mark the size scale on the support ruler.

In some embodiments, both the first exit port and the second exit port are linear exit ports, and the first laser source and the second laser source are respectively formed through the corresponding line exit ports line laser.

In some embodiments, the first marking part is a first reference plane on the first box, and the first reference plane is aligned with the first outlet and perpendicular to the distribution of the size scale Direction; the second marking part is the second reference plane on the second box body, the second reference plane is aligned with the second outlet and is perpendicular to the distribution direction of the size scale.

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.

In some embodiments, the first laser component further includes a first magnetic component, and the first box is magnetically attracted to the support bar through the first magnetic component;

The second laser component also includes a second magnetic component, and the second box is magnetically attracted to the support bar through the second magnetic component.

In some embodiments, the bottom wall of the first box body abuts against the support bar, the first magnetic part is built into the first box body, and is located at the bottom wall of the first box body away from one side of said dimension scale;

The bottom wall of the second box body abuts against the support ruler, the second magnetic part is built in the second box body, and is located at a position where the bottom wall of the second box body is away from the size scale side.

In some embodiments, the support ruler includes a scale plate and a baffle connected by bending, the scale plate is provided with the size scale, the bottom wall of the first box body and the second box body The bottom wall of the body is magnetically attracted to the scale plate, and the baffle plate is used to stop and limit the first box body and the second box body.

In some embodiments, the support bar is an L-shaped structure.

In some embodiments, the support bar is provided with slits, the size scales are distributed symmetrically with respect to the slits, and the first laser element and the second laser element are symmetrically arranged on the slits on both sides.

In some embodiments, the laser colors of the first line-shaped laser and the second line-shaped laser are respectively one of yellow and blue.

In some embodiments, the measurement device further includes a wandering cursor, which is used to emit marking laser light in a direction perpendicular to the distribution direction of the size scale, and the wandering cursor is also used to mark the mark The laser corresponds to the size scale on the support bar; the laser color of the marking laser is different from the laser colors of the first line laser and the second line laser.

In some embodiments, the wandering cursor includes a bracket and a marking laser source, the marking laser source is connected to the bracket, and a third marking part aligned with the position of the marking laser source is provided on the bracket, the The bracket is movably arranged on the support bar, and the third marking part is used to mark that the marking laser corresponds to the size scale on the support bar.

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

The beneficial effects of the application are: different from the situation of the prior art, the application discloses a measuring device. In this application, by setting the first laser element and the second laser element on the support bar, the first line-shaped laser light and the second line-shape laser light emitted respectively, and the marking distance between the first laser element and the second laser element can be utilized. Determine the height difference L from the intersection of the first line-shaped laser and the second line-shaped laser to the plane where the two laser exit positions are located. The height difference L can be used as the standard height difference, and the height difference L is based on the plane where the two laser exit positions are located. , and through the positions and colors of the first line-shaped laser and the second line-shaped laser on the surface of the measured object, the distance between the height difference ΔL from the measured object to the reference plane and the standard height difference L can be determined intuitively and quickly The height difference can be quickly compared with the reference; furthermore, by displaying the superimposed light obtained by the first line-shaped laser and the second line-shaped laser on the surface of the measured object, the measured object can also be easily obtained. The height difference ΔL to the reference plane can convert the height difference measurement into the plane distance measurement on the support bar, which can realize intuitive and rapid height difference detection; The fast comparison of height difference and the conversion measurement function of height difference can be realized by using only one piece and the second laser piece. Compared with the scheme using sensors for distance measurement, the cost of the supporting ruler, the first laser piece and the second laser piece used in the scheme of this application are all lower Low, that is, the functions of rapid comparison of height difference and conversion measurement of height difference can be realized with a low-cost solution; further, when any one of the overrunning bar, the first laser part and the second laser part is damaged, it can be replaced, The whole measurement device can be avoided due to the damage of a small number of components, which improves the utilization rate of the measurement device and effectively reduces the use cost.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative work, wherein:

Fig. 1 is a schematic structural view of an embodiment of a measuring device provided by the present application;

Fig. 2 is the structural representation of support ruler in measuring device as shown in Fig. 1;

Fig. 3 is the front structural schematic diagram of measuring device as shown in Fig. 1;

Fig. 4 is a schematic diagram of the first result when the measuring device as shown in Fig. 3 is used for the rapid comparison of height difference;

Fig. 5 is the schematic diagram of the second result when the measuring device as shown in Fig. 3 is used for the rapid comparison of height difference;

Fig. 6 is the schematic diagram of the third result when the measuring device as shown in Fig. 3 is used for the rapid comparison of height difference;

Figure 7 is a schematic diagram of the use of the measuring device as shown in Figure 1 when used for height difference conversion measurement;

FIG. 8 is a schematic structural diagram of a wandering cursor in the measuring device shown in FIG. 1 .

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The terms "first", "second", and "third" in the embodiments of the present application are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include at least one of these features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. 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 optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or devices.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

The present application provides a measuring device 100, referring to Fig. 1 to Fig. 3, Fig. 1 is a schematic structural view of an embodiment of the measuring device provided by the present application, Fig. 2 is a schematic structural view of the supporting ruler in the measuring device as shown in Fig. 1, Fig. 3 is a front structural schematic view of the measuring device as shown in FIG. 1 .

The measuring device 100 can be used for rapid height difference comparison and height difference conversion measurement of the measured object, and provides a more intuitive and convenient measurement method with low-cost tools.

The measuring device 100 includes a support bar 10, a first laser part 20 and a second laser part 30, and the first laser part 20 and the second laser part 30 are all arranged on the support bar 10 to utilize the first laser part 20 and the second laser part 30. The line-shaped laser emitted by the laser part 30 quickly compares the height difference of the measured object.

The support ruler 10 is provided with a size scale 12, and the size scale 12 is used to mark the size.

In this embodiment, the support ruler 10 is provided with a slit 14, 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 of the mark zero point can be marked as zero or set as zero. set value.

Optionally, marking lines can be provided on the support ruler 10 to replace the slit 14, or the size scales 12 can be distributed along the distribution direction from small to large.

In this embodiment, the support ruler 10 is an L-shaped structure with a smooth surface. The L-shaped structure may be an angle iron or the like. A slit 14 is provided on one side of the L-shaped structure, and a size scale 12 is formed by etching. The angle iron has stable performance, is easy to obtain and is cheap, which is beneficial to reduce the cost of the measuring device 100 . The support bar 10 can also be made of materials such as carbon steel.

Optionally, the support ruler 10 can also be a flat plate structure, and a size scale 12 is arranged on it.

As shown in Figures 1 to 3, the first laser element 20 is movably arranged on the support bar 10, and is used to emit the first linear laser along the first direction A and mark its size scale on the support bar 10; Two laser parts 30 are movably arranged on the support bar 10 for emitting the second linear laser along the second direction B and marking its size scale on the support bar 10; wherein, the first direction A and the second direction B are about The direction perpendicular to the distribution direction of the size scale 12 is symmetrical, and the first line-shaped laser and the second line-shaped laser intersect, and the laser colors of the first line-shaped laser and the second line-shaped laser are different.

Laser has 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, such as yellow laser Superimposed with a blue laser to produce green, and green is also significantly different from yellow and blue, easy to be observed; or superimposed with red laser and blue laser to produce purple.

In this embodiment, the laser colors of the first line-shaped laser and the second line-shaped laser are respectively one of yellow and blue, wherein the intersection of the first line-shaped laser and the second line-shaped laser is formed by the yellow line-shaped laser and the blue line. The color line lasers are superimposed to form a green line laser.

Further, the first laser part 20 and the second laser part 30 also respectively mark their own size scales on the support bar 10, and the laser emission position and the position of the marked size scale on the first laser part 20 are relatively fixed, The laser emission position and the position of the mark size scale on the second laser part 30 are relatively fixed, so the scale spacing marked between the first laser part 20 and the second laser part 30 can be used to obtain the first laser part 20 and the second laser part 30. The spacing S between the laser emission positions of the second laser element 30, the first direction A and the second direction B are symmetrical with respect to the direction perpendicular to the distribution direction of the size scale 12, it can be known that the first direction A and the second direction B and The included angle α between the surfaces where the size scale 12 is located is definite, so using trigonometric functions, the height difference L from the intersection of the first line-shaped laser and the second line-shaped laser to the plane where the two laser exit positions are located can be determined, where

Wherein, the angle α between the first direction A and the second direction B and the surface where the dimension scale 12 is located can be 30 degrees, 45 degrees and 60 degrees, etc., for example, the angle α is 45 degrees, then

In this embodiment, the included angle α is 45 degrees, which is convenient for the user to intuitively obtain the size of the height difference L through the scale size on the support ruler 10 .

When measuring or comparing the height difference, if the plane where the two laser emitting positions are located is taken as the reference plane, the height difference L can be the comparison reference or the measured value of the height difference. If the plane where the dimension scale 12 of the support ruler 10 is located is the reference plane, and the distance between the laser emission positions of the first laser part 20 and the second laser part 30 and the dimension scale 12 on the support ruler 10 is also fixed, It can be measured in advance and can be determined as a fixed value. The sum of the fixed value and the height difference L is the height difference from the intersection of the first line-shaped laser and the second line-shaped laser to the reference plane.

Further, the first laser element 20 and the second laser element 30 are arranged symmetrically on both sides of the slit 14 , and the intersection line of the first line-shaped laser and the second line-shaped laser can be visually observed through the slit 14 .

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 disposed on one side of the slit 14 at the same time.

In this embodiment, taking the plane where the two laser emitting positions are located as the reference plane, the color of the first line-shaped laser is yellow, the color of the second line-shaped laser is blue, and the first laser element 20 is located on the left side of the slit 14. The second laser element 30 is located on the right side of the slit 14 .

Referring to Fig. 3 to Fig. 6 in combination, Fig. 4 is a schematic diagram of the first result when the measuring device as shown in Fig. 3 is used for the rapid comparison of the height difference, and Fig. 5 is a schematic diagram of the first result when the measuring device as shown in Fig. 3 is used for the rapid comparison of the height difference The schematic diagrams of the two results, Fig. 6 is a schematic diagram of the third result when the measuring device as shown in Fig. 3 is used for the rapid comparison of the height difference.

When performing height difference rapid comparison detection, the positions of the first laser element 20 and the second laser element 30 on the support bar 10 are pre-adjusted to obtain the required reference height difference, that is, the height difference L, and then each detected Objects to be measured for quick comparison of height difference. There are three results of the detection results, which are the height difference ΔL=L, ΔL>L and ΔL<L from the measured object to the reference plane, and all of them can be directly observed by vision. Get comparison results quickly.

Specifically, as shown in Figure 4, a green light is displayed on the surface of the measured object, then ΔL=L; as shown in Figure 5, two light rays are displayed on the surface of the measured object, and the yellow light is located between the blue light , it means that ΔL<L; as shown in Figure 6, two light rays are displayed on the surface of the measured object, and the blue light is on the left side of the yellow light, then it means that ΔL>L.

When performing height difference conversion measurement, by adjusting the spacing S between the first laser element 20 and the second laser element 30, the light rays obtained after the superimposition of the first line laser and the second line laser are displayed on the surface of the measured object , the height difference L from the measured object to the reference plane can be obtained.

In this application, the first laser element 20 and the second laser element 30 are arranged on the support bar 10 to utilize the first line-shaped laser and the second line-shaped laser emitted respectively, as well as the first laser element 20 and the second laser element 30. The mark spacing S between the two lasers determines the height difference L from the intersection of the first line laser and the second line laser to the plane where the two lasers exit. The height difference L can be used as the standard height difference, and the height difference L is emitted by the two lasers The plane where the position is located is the reference plane, and through the position and color displayed by the light of the first line laser and the second line laser on the surface of the measured object, the height difference ΔL between the measured object and the reference plane can be determined intuitively and quickly. The size relationship between the height difference L can be used to quickly compare the height difference with the reference; further, by displaying the superimposed light rays obtained by the first line laser and the second line laser on the surface of the measured object, it can also be The height difference ΔL from the measured object to the reference plane can be obtained conveniently, and the height difference measurement can be transformed into the plane distance measurement on the support bar 10, which can realize intuitive and rapid height difference detection.

Therefore, the measurement device 100 provided by the present application can realize the above-mentioned rapid height difference comparison and height difference conversion measurement functions through the support bar 10, the first laser element 20 and the second laser element 30. The cost of the support bar 10, the first laser part 20 and the second laser part 30 used in the solution of this application is all low, that is, the functions of fast comparison of height difference and conversion measurement of height difference can be realized with a low-cost solution.

Further, when any one of the stop bar 10, the first laser part 20 and the second laser part 30 is damaged, it can be replaced, which can avoid the overall scrapping of the measuring device 100 due to the damage of a small number of parts, and improve The utilization rate of the measuring device 100 is improved, and the use cost is effectively reduced.

As shown in Figure 3, 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 on the first box body 22 A first exit port 220 is provided, and the first laser source 21 emits the first line-shaped laser from the first exit port 220. The first box body 22 is also provided with a first marking part 222, which is used to mark the support bar The size scale on 10; the second laser part 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 box body 32 is provided with a second exit port 320 , the second laser source 31 emits the second line-shaped laser from the second exit port 320 , and the second box body 32 is also provided with a second marking part 322 , and the second marking part 322 is used to mark the size scale on the support bar 10 .

The first box body 22 can provide protection to the first laser source 21, and can also mark its corresponding size scale on the support ruler 10 through the first marking part 222 provided on it, and it is also convenient for the user to hold the first laser light source. The laser part 20 can easily adjust its position on the support bar 10; the second box body 32 can provide protection for the second laser source 31, and can also be marked by the second marking part 322 provided on it. It corresponds to the size scale on the support rule 10 , and it is also convenient for the user to hold the second laser component 30 to conveniently adjust its position on the support rule 10 .

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 a line-shaped laser through the corresponding line-shaped exit ports, so that the first The laser source 21 and the second laser source 31 can be non-linear laser sources, which can further reduce the cost.

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

In this embodiment, the first marking part 222 is the first reference plane on the first box body 22, the first reference plane is aligned with the first exit port 220 and is perpendicular to the distribution direction of the size scale 12; the second marking part 322 is the second datum plane on the second box body 32, the second datum plane 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 datum plane and the second datum plane is is the distance S between the first exit port 220 and the second exit port 320 , so as to obtain the height difference L more subjectively.

Wherein, 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 adjacent to the bottom surface; the bottom surface of the second box body 32 faces For the size scale 12 on the support ruler 10 , the second reference plane is perpendicular to the bottom surface of the second box body 32 and is adjacent to the bottom surface.

Optionally, the first marking part 222 and the second marking part 322 can also be raised points, and the corresponding size scale on the support ruler 10 is arranged in the bar-shaped groove corresponding to the raised point, and the raised point is arranged in the bar-shaped groove to mark out the corresponding scale bit.

In this embodiment, the included 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 included angle between the first direction A and the first reference plane is 45 degrees, the 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.

Further, the first laser part 20 also includes a first magnetic part 23, and the first box body 22 is magnetically attracted to the support bar 10 through the first magnetic part 23; the second laser part 30 also includes a second magnetic part 33, the second The box body 32 is magnetically attracted to the support bar 10 through the second magnetic part 33, and the connection between the first laser part 20 and the second laser part 30 and the support bar 10 can be realized quickly by setting the first magnetic part 23 and the second magnetic part 33. The relationship between the connection and disconnection between them is convenient for the user to manually move the positions of the first laser part 20 and the second laser part 30 on the support bar 10 .

The first magnetic part 23 can be disposed on the bottom of the first box body 22 and face the size scale 12 , and the second magnetic part 33 can be disposed on the bottom of the second case body 32 and face the size scale 12 .

In this embodiment, the bottom wall of the first box body 22 abuts against the support ruler 10, the first magnetic member 23 is built into the first box body 22, and is located at a position where the bottom wall of the first box body 22 is away from the size scale 12. side, 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 plane can accurately mark the position on the size scale 12; the bottom wall of the second box body 32 is against On the support ruler 10, the second magnetic part 33 is built in 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 attracted Attached on the support ruler 10 , the second reference plane can accurately mark the position on the size scale 12 .

Wherein, as shown in Figure 2, the support ruler 10 comprises a scale plate 11 and a baffle plate 13 that are bent and connected, the scale plate 11 is provided with a scale scale 12, the bottom wall of the first box body 22 and the second box body 32 The bottom wall of the bottom wall is magnetically attracted to the scale plate 11, and the baffle plate 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 element 20 and the second laser element 30, Prevent the first laser part 20 and the second laser part 30 from easily falling off from the support bar 10 due to insufficient magnetic attraction.

The baffle 13 can be perpendicular to the scale plate 11 , or the bending angle between the baffle 13 and the scale plate 11 is an acute angle or an obtuse angle, such as 70°, 80°, 100° or 110°.

In this embodiment, the support ruler 10 has an L-shaped structure, and the two side plates of the L-shaped structure are the above-mentioned scale plate 11 and the baffle plate 13 respectively, wherein the scale plate 11 and the baffle plate 13 are arranged approximately vertically.

Alternatively, the stop rule 10 may only include the scale plate 11 .

Referring to FIG. 1 and FIG. 7 in conjunction, FIG. 7 is a schematic diagram of the use of the measuring device shown in FIG. 1 for height difference conversion measurement.

Further, the measuring device 100 also includes a wandering cursor 40, which is used to emit marking laser light in a direction perpendicular to the distribution direction of the size scale 12, and the wandering cursor 40 is also used to mark the marking laser corresponding to the position on the support ruler 10. The laser color of the marking laser is different from the laser color of the first line laser and the second line laser, and then the marking laser and the first line laser or the second line laser will also show a new color at the intersection , using this characteristic, by moving the position of the wandering cursor 40 on the support bar 10, so that the new color is displayed on the surface of the object to be measured, and the marking part on the first laser part 20 and the marking part of the wandering cursor 40 are determined The distance S between them, and the height difference L between the measured object and the reference plane can be obtained through the trigonometric function relationship, that is, the height drop L difference that is not easy to measure is converted into the distance S in the horizontal direction, so that the user can understand the height difference L The measurement is more intuitive and convenient.

In this embodiment, the color of the first line-shaped laser is yellow, the color of the second line-shaped laser is blue, and the color of the marking laser is red, where the superposition of red and yellow can display orange, and the superposition of red and blue can display Purple.

Wherein, the user pastes the moving cursor 40 on the size scale 12, and moves the moving cursor 40 along the square or in the reverse direction of the size scale 12, so that the yellow color of the marking laser and the first line laser on the surface of the measured object The light overlaps to show an orange light, or the blue light of the mark laser and the second line laser overlaps on the surface of the measured object to show a purple light, and then the distance between the measured object and the reference plane is obtained by the above-mentioned trigonometric function. height difference L.

Referring to FIG. 8 , FIG. 8 is a schematic structural diagram of a moving cursor in the measuring device shown in FIG. 1 . Specifically, the wandering 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 part 410 aligned with the position of the marking laser source 42, and the bracket 41 is movably arranged on On the support bar 10 , the third marking part 410 is used to mark that the marking laser corresponds to the size scale on the support bar 10 .

Wherein, the support 41 is a plate, and the support 41 can also be magnetically attracted to the support ruler 10, or the support 41 is attached to the support ruler 10 under the pressure and holding force of the user. The strip-shaped slit, which is aligned with the marking laser source 42, is used to correspond to the size scale on the support bar 10, that is, the corresponding size scale can be directly observed through the strip-shaped slit.

In this embodiment, the included angle α is 45 degrees, then the distance S between the first datum plane or the second datum plane and the corresponding size scale of the bar-shaped seam is the height difference L between the surface of the measured object and the datum plane, Therefore, the height difference L can be obtained more intuitively and conveniently.

Optionally, the third marking part 410 may also be a round hole or a marking line, 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.

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

The marking laser source 42 can be a linear laser source to emit linear light, which can be superimposed with the first linear laser or the second linear laser, which is more conducive to the user to observe the light of a new color; or the laser emitted by it is a dot-shaped laser. .

Different from the situation in the prior art, the present application discloses a measuring device. In this application, by setting the first laser element and the second laser element on the support bar, the first line-shaped laser light and the second line-shape laser light emitted respectively, and the marking distance between the first laser element and the second laser element can be utilized. Determine the height difference L from the intersection of the first line-shaped laser and the second line-shaped laser to the plane where the two laser exit positions are located. The height difference L can be used as the standard height difference, and the height difference L is based on the plane where the two laser exit positions are located. , and through the positions and colors of the first line-shaped laser and the second line-shaped laser on the surface of the measured object, the distance between the height difference ΔL from the measured object to the reference plane and the standard height difference L can be determined intuitively and quickly The height difference can be quickly compared with the reference; furthermore, by displaying the superimposed light obtained by the first line-shaped laser and the second line-shaped laser on the surface of the measured object, the measured object can also be easily obtained. The height difference ΔL to the reference plane can convert the height difference measurement into the plane distance measurement on the support bar, which can realize intuitive and rapid height difference detection; The fast comparison of height difference and the conversion measurement function of height difference can be realized by using only one piece and the second laser piece. Compared with the scheme using sensors for distance measurement, the cost of the supporting ruler, the first laser piece and the second laser piece used in the scheme of this application are all lower Low, that is, the functions of rapid comparison of height difference and conversion measurement of height difference can be realized with a low-cost solution; further, when any one of the overrunning bar, the first laser part and the second laser part is damaged, it can be replaced, The whole measurement device can be avoided due to the damage of a small number of components, which improves the utilization rate of the measurement device and effectively reduces the use cost.

The above is only an embodiment of the application, and does not limit the patent scope of the application. Any equivalent structure or equivalent process conversion made by using the specification and drawings of the application, or directly or indirectly used in other related technologies fields, are all included in the scope of patent protection of this application in the same way.

Claims (14)

1. A measuring device, characterized in that, comprising: The support ruler is provided with a size scale; The first laser component is movably arranged on the support bar, and is used to emit the first line-shaped laser along the first direction and mark its size scale on the support bar; The second laser component is movably arranged on the support bar, and is used to emit a second line-shaped laser along a second direction and mark its size scale on the support bar; Wherein, the first direction and the second direction are symmetrical with respect to the direction perpendicular to the distribution direction of the size scale, and the first line-shaped laser and the second line-shaped laser intersect, and the first The line laser and the second line laser have different laser colors. 2. The measuring device according to claim 1, wherein the first laser component comprises a first laser source and a first box body, the first laser source is arranged in the first box body, and the The first box body is provided with a first exit port, the first laser source emits a first line-shaped laser from the first exit port, and the first box body is also provided with a first marking part. A marking part is used to mark the size scale on the support ruler; The second laser component includes a second laser source and a second box, the second laser source is arranged in the second box, and the second box is provided with a second exit port, the first The second laser source emits a second line-shaped laser from the second output port, and the second box body is further provided with a second marking part, and the second marking part is used to mark the size scale on the support ruler. 3. The measuring device according to claim 2, characterized in that, both the first exit port and the second exit port are linear exit ports, and the first laser source and the second laser source are respectively A line laser is formed through the corresponding line exit. 4. The measuring device according to claim 3, wherein the first marking part is a first reference plane on the first box, and the first reference plane is aligned with the first exit port And perpendicular to the distribution direction of the size scale; the second mark part is the second reference plane on the second box body, the second reference plane is aligned with the second outlet and perpendicular to the The distribution direction of the size scale table. 5. The measuring device according to claim 4, wherein the angle between the first direction and the first reference plane is 45 degrees, and the second direction and the second reference plane The angle between them is 45 degrees. 6. The measuring device according to claim 2, wherein the first laser part further comprises a first magnetic part, and the first box is magnetically attracted to the support by the first magnetic part ; The second laser component also includes a second magnetic component, and the second box is magnetically attracted to the support bar through the second magnetic component. 7. The measuring device according to claim 6, wherein the bottom wall of the first box abuts against the support bar, the first magnetic part is built into the first box, and is located at The bottom wall of the first box body is away from the side of the size scale; The bottom wall of the second box body abuts against the support ruler, the second magnetic part is built in the second box body, and is located at a position where the bottom wall of the second box body is away from the size scale side. 8. The measuring device according to claim 7, wherein the support ruler includes a scale plate and a baffle plate that are bent and connected, the scale plate is provided with the size scale, and the first box Both the bottom wall of the body and the bottom wall of the second box are magnetically attracted to the scale plate, and the baffle is used to stop and limit the first box and the second box. 9. The measuring device according to claim 8, characterized in that, the stop bar is an L-shaped structure. 10. The measuring device according to claim 1, wherein a slit is provided on the support bar, and the size scale is symmetrically distributed with respect to the slit, and the first laser element and the second laser element The two laser elements are arranged symmetrically on both sides of the slit. 11. The measuring device according to claim 10, wherein the laser colors of the first line-shaped laser and the second line-shaped laser are respectively one of yellow and blue. 12. The measuring device according to claim 1, characterized in that, the measuring device further comprises a wandering cursor, and the wandering cursor is used to emit marking laser light in a direction perpendicular to the distribution direction of the size scale, and The wandering cursor is also marked by the mark laser corresponding to the size scale on the support bar; the laser color of the mark laser is different from the laser color of the first line laser and the second line laser. 13. The measurement device according to claim 12, wherein the wandering cursor comprises a support and a marking laser source, the marking laser source is connected to the support, and the support is provided with a connection with the marking laser source. A third marking part aligned in position, the bracket is movably arranged on the support bar, and the third marking part is used to mark that the marking laser corresponds to the size scale on the support bar. 14. The measuring device according to claim 13, characterized in that, the third marking part is a strip-shaped slit, and 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.

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