WO2021077325A1

WO2021077325A1 - Laser ranging level ruler

Info

Publication number: WO2021077325A1
Application number: PCT/CN2019/112752
Authority: WO
Inventors: 李跃明
Original assignee: 杭州联和工具制造有限公司; 杭州巨星科技股份有限公司
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2021-04-29

Abstract

A laser ranging level ruler, comprising a level ruler frame (1), a laser ranging unit (2) and a horizontal measuring unit (3). The laser ranging unit (2) and the horizontal measuring unit (3) are both placed in the level ruler frame (1), an adjustment device is provided between the level ruler frame (1) and the laser ranging unit (2), and the adjustment device may make the laser ranging unit have at least one degree of freedom that is adjustable in the ranging direction. By means of combining the level ruler with laser ranging, ranging with horizontal accuracy may reduce errors, and the laser ranging level ruler is convenient to carry and operate.

Description

A laser ranging level To

技术领域Technical field

This application relates to a measuring tool, in particular to a measuring tool with a laser ranging function combined with a level, and more specifically, to a laser ranging level.

背景技术Background technique

The spirit level is an indispensable auxiliary tool during decoration, and it is mainly used to measure the horizontal accuracy of the plane; usually the spirit level includes a box spirit level and an I-shaped spirit level. The indispensable matching measuring tool in the decoration is the tape measure; however, the tape measure has a large measurement error and the measurement process is not easy to control. The distance of more than 1-2 meters may require another person to cooperate, although currently on the market A single laser rangefinder can solve the above measurement problems, but the single laser rangefinder is not easy to grasp the horizontal accuracy during measurement, and the measured data has a certain error, which requires multiple measurements and comparisons, which reduces the efficiency.

发明内容Summary of the invention

The purpose of this application is to provide a laser ranging level. By combining the laser ranging device with the level, it can achieve both the conventional level function and the laser ranging under the premise of level accuracy, ensuring laser ranging The precision improves work efficiency.

In order to achieve the above objective, the present application provides a laser ranging level, including a level frame, a laser ranging unit, and a level measuring unit, the laser ranging unit and the level measuring unit are both placed on the level In the frame, an adjustment device is provided between the level frame and the laser distance measurement unit, and the adjustment device is telescopically connected to the laser distance measurement unit so that the laser distance measurement unit has at least One degree of freedom can be adjusted.

Optionally, the laser distance measuring unit is fixedly connected to the level frame;

The laser ranging unit includes a laser emitting and receiving device, a display screen, a switch button, and a power supply that are connected to each other;

The level frame includes a housing I fixed by screws, an I-shaped main frame, and a housing II. The housing I, the I-shaped main frame, and the housing II form a cavity, and the The laser ranging unit is located in the cavity;

The laser emitting and receiving device is fixed on the housing II, and is limited by the ribs on the housing II, the display screen is fixed on the housing I, the switch button and the The power source is located between the display screen and the level measurement unit.

Optionally, the adjusting device includes two adjusting screws I arranged on the reference surface of the bottom of the I-shaped frame, and the two adjusting screws I are respectively located at the front end and the rear end of the laser emitting and receiving device.

Optionally, the adjusting device further includes wedge grooves respectively fixed on the two side walls of the I-shaped main frame by screws, and two of the wedge grooves are equipped with wedges; the wedges are far away One side of the screw is a downward slope.

The level frame includes a housing I and a housing II fixed by screws, the housing I and the housing II form a cavity, the laser distance measuring unit is located in the cavity, and the laser The transmitting and receiving device is fixed on the housing II, and is limited by the ribs on the housing II, the display screen is fixed on the housing I, the switch button and the power supply are located in the Between the display screen and the level measurement unit.

Optionally, the adjusting device includes wedge grooves respectively fixed on the two side walls of the housing II by screws, and two of the wedge grooves are equipped with wedges, and the wedges are away from the screws. One side is a downward slope.

Optionally, the adjusting device further includes an adjusting screw II arranged at the rear end of the laser emitting and receiving device, and the adjusting screw II is used to adjust the left and right swing angle of the emitting port of the laser emitting and receiving device.

Optionally, the laser distance measurement unit is detachably connected to the level frame, and the laser distance measurement unit is a whole and is arranged at one end of the level frame.

Optionally, the level frame has a box structure, and the adjustment device includes two adjustment screws III arranged on one of the reference surfaces of the level frame, and the two adjustment screws III are respectively located on the The front and rear ends of the laser distance measuring unit, the laser distance measuring unit is fixed on the horizontal ruler frame by a locking device.

Optionally, the locking device includes a locking button with a protrusion on the top, the locking button is of a hollow structure, and the hollow structure is equipped with a spring, and the locking device is fitted on the level by a clamp ring and a screw. In the locking hole provided on the frame and the mounting hole provided on the laser distance measuring unit.

Optionally, the level frame is a box structure, the adjustment device includes an adjustment bracket arranged in the level frame, the laser distance measuring unit is located in the adjustment bracket, the adjustment bracket and the Two screw holes are provided on both sides and the bottom of the same position of the level frame, and all the screw holes are provided with adjusting screws IV; the tail of the adjusting bracket is also provided with an adjusting nut.

Optionally, the level frame is an I-shaped frame, a guide rail is provided in the I-shaped frame, a groove matching the guide rail is provided on the bottom of the laser distance measuring unit, and the I-shaped frame Both sides of the shaped frame are provided with positioning holes, and positioning screws are arranged in the positioning holes, and the positioning screws are used to restrict the movement of the laser distance measuring unit in the I-shaped frame.

Optionally, the adjusting device includes two adjusting screws V arranged on the guide rail, and the two adjusting screws V are respectively located at the front end and the rear end of the laser distance measuring unit, and are used for adjusting the adjusting laser measuring unit. The position of the distance unit on the guide rail.

Compared with the prior art, this application can obtain the following technical effects:

1) In this application, the laser ranging level ruler is provided with a laser range measurement unit and a level measurement unit in the level ruler frame. Combining the level ruler and laser distance measurement, the level measurement can be performed with horizontal accuracy, reducing the error of the measurement distance, and ensuring The accuracy of laser ranging improves work efficiency;

2) The laser ranging level of this application combines the laser ranging and the level to facilitate carrying and reduce the packaging;

3) The laser range measuring level applied in this application avoids the problem that the common tape measure cannot be operated by a single person in long-distance measurement;

4) The laser ranging level applied for this application is easy to operate, and directly participates in the reference measurement when the level is used, which avoids the trouble of finding a reference again.

Hereinafter, the concept, specific structure and technical effects of the application will be further described in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of the application.

附图说明Description of the drawings

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The exemplary embodiments and descriptions of the application are used to explain the application, and do not constitute an improper limitation of the application. In the attached picture:

Fig. 1 is an axial view of a first embodiment of a laser ranging level ruler according to the present application;

Figure 2 is an exploded schematic diagram of Figure 1;

Fig. 3 is an internal schematic diagram of Fig. 1;

4 is a partial schematic diagram of the laser emitting and receiving device in FIG. 1;

Fig. 5 is a schematic diagram of a second embodiment of a laser ranging level ruler according to the present application;

Figure 6 is a schematic diagram of the wedge in Figure 5;

Fig. 7 is a schematic diagram of a third embodiment of a laser ranging level ruler according to the present application;

Fig. 8 is a partial exploded schematic diagram of Fig. 7;

Fig. 9 is a schematic diagram of a fourth embodiment of a laser ranging level ruler according to the present application;

Figure 10 is a partial exploded schematic diagram of Figure 7;

Fig. 11 is a front view of a fifth embodiment of a laser ranging level ruler according to the present application;

Figure 12 is a partial exploded schematic diagram of Figure 11;

Figure 13 is a cross-sectional view of Figure 11 along the A-A direction;

14 is a schematic diagram of a sixth embodiment of a laser ranging level ruler according to the present application;

Figure 15 is a cross-sectional view of Figure 14 in the B-B direction;

Figure 16 is a partial axial view of Figure 14;

Fig. 17 is a partial exploded schematic diagram of Fig. 16.

具体实施方式Detailed ways

Hereinafter, a number of preferred embodiments of the present application will be introduced with reference to the drawings in the specification, so that the technical content will be clearer and easier to understand. This application can be embodied in many different forms of embodiments, and the scope of protection of this application is not limited to the embodiments mentioned in the text.

In the drawings, components with the same structure are denoted by the same numerals, and components with similar structures or functions are denoted by similar numerals. The size and thickness of each component shown in the drawings are arbitrarily shown, and the present application does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of the components is appropriately exaggerated in some places in the drawings.

In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the pointed device or element must have a specific orientation or a specific orientation. The structure and operation cannot therefore be understood as a limitation of this application.

In the description of this application, it should be noted that the terms "installation", "connection", and "connection" should be understood in a broad sense, unless otherwise clearly specified and limited. For example, it can be a fixed connection or a detachable connection. Connected or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in this application can be understood under specific circumstances.

Example 1 (Fixed I-shaped level ruler 1)

As shown in Figure 1-4, a laser ranging level includes a level frame 1, a laser ranging unit 2 and a level measuring unit 3. The laser ranging unit 2 and the level measuring unit 3 are both placed on the level frame 1 Inside, an adjusting device is provided between the level frame 1 and the laser distance measuring unit 2. The adjustment device is telescopically connected to the laser distance measurement unit so that the laser distance measurement unit can perform distance measurement under a set angle state, thereby reducing measurement errors.

It should be noted that the adjusting device can make the laser ranging unit 2 have at least one degree of freedom adjustable in the ranging direction, that is, it can be adjusted to take the ranging direction as the front, so as to achieve the most up-and-down adjustment.

The laser distance measuring unit 2 includes a laser emitting and receiving device 5, a display screen 6, a switch button 7 and a power supply 8 which are connected to each other. It should be noted that the power supply 8 can provide power to the laser emitting and receiving device 5, the display screen 6 and the switch button 7 respectively; the distance measured by the laser emitting and receiving device 5 is displayed on the display screen 6, which can directly read the data, and more Observe the result intuitively.

It should be noted that the laser emitting and receiving device 5 is in the prior art, and the structure of the laser emitting and receiving device 5 is not improved in this application, so the structure is not explained in detail.

The spirit level frame 1 includes a housing I9, an I-shaped main frame 10, and a housing II11 that are fixed by screws. The housing I9, I-shaped main frame 10 and the housing II11 form a cavity. The level measurement unit 3 and the laser measurement unit The distance unit 2 is located in the cavity, the laser emitting and receiving device 5 is fixed on the housing II11, and is limited by the ribs 12 on the housing II11, the display screen 6 is fixed on the housing I9, the switch button 7 and the power supply 8 Located between the display screen 6 and the level measuring unit 3.

The horizontal measurement unit 3 is a horizontal reference bubble 13 and/or a vertical reference bubble 14. The horizontal reference bubble 13 and/or the vertical reference bubble 14 are fixed in the horizontal ruler frame 1 through the horizontal bubble holder 15 and the limit frame 16. The level measuring unit 3 is used to measure whether the position of the laser ranging level ruler is horizontal and/or vertical during measurement.

The adjusting device includes two adjusting screws I17 arranged on the reference surface of the bottom of the I-shaped main frame 10, and the two adjusting screws I17 are located at the front and rear of the laser emitting and receiving device 5, respectively. The adjustment screw I17 can adjust the tilt angle of the front and rear ends of the laser emitting and receiving device 5 to achieve adjustment; on the other hand, the front end of the laser emitting and receiving device 5 is at a certain distance L from the end surface of the level frame 1, which is set by the data processing module in the laser emitting and receiving device 5. The error of the subsidy L can be set to compensate for the error of the measurement reference on the assembly.

It should be noted that when the distance between two objects needs to be measured, the laser ranging level is placed on the end surface of one of the objects, and the level measuring unit 3 is first used to measure whether the laser ranging level is horizontal or vertical. Straight state, if yes, directly turn on the laser distance measuring unit 2 to measure the distance between the two objects on the display screen 6; if not, you need to adjust the adjustment device, adjust the two adjustment screws I17, adjust the laser The tilt angle of the front and rear ends of the transmitting and receiving device is such that the laser ranging level ruler is in a horizontal or vertical state, and then the laser ranging unit 2 is used for laser measurement, and the distance between the two objects will be displayed on the display screen 6.

It should be noted that the laser ranging unit 2 uses point-to-point measurement. When the laser ranging level is not stable or tilted (including left and right, up and down), the measured distance is deviated from the actual one. Through the horizontal measurement unit 3 Cooperate and adjust the swing angle (adjust the adjustment device) to realize the precision control of the measurement results.

Example 2 (Fixed I-shaped level 2)

As shown in Figures 5-6, you can refer to the structure of Embodiment 1. The difference from Embodiment 1 is that the adjusting device also includes wedge grooves 18 fixed on the two side walls of the main frame by screws 20, and two wedges A wedge 19 is installed in the groove 18, and the side of the wedge 19 away from the screw 20 is a downward slope.

It should be noted that the adjusting device in this embodiment can realize the adjustment of the up and down swing of the laser distance measuring unit 2, and the wedge 19 is pushed by the side screw 20 to realize the up and down adjustment.

Example 3 (Fixed Box Level)

As shown in Figures 7-8, you can refer to the structure of Embodiment 1. The difference from Embodiment 1 is that the level frame 1 includes a housing I9 and a housing II11 that are fixed by screws, and the housing I9 and the housing II11 form one Cavity, the laser ranging unit 2 is located in the cavity, the laser emitting and receiving device 5 is fixed on the housing II11 and is limited by the ribs 12 on the housing II11, the display screen 6 is fixed on the housing I9, and the switch button 7 and the power supply 8 are located between the display screen 6 and the level measurement unit 3.

The adjusting device also includes an adjusting screw II21 arranged at the rear end of the laser transmitting and receiving device 5. The adjusting screw II21 is used to adjust the left and right (ie XZ direction) swing angle of the transmitting port of the laser transmitting and receiving device 5, and fix it after reaching the required progress; other up and down (Namely XY direction) Refer to Example 2 for the method of adjusting the progress.

Example 4 (Quick release box type spirit level)

As shown in Figure 9-10, you can refer to the structure of Embodiment 1. The difference from Embodiment 1 is that the level frame is a box structure, the laser ranging unit 2 and the level frame 1 are detachably connected, and the laser ranging The unit 2 is a whole and is arranged at one end of the horizontal ruler frame 1.

It should be noted that the laser distance measuring unit 2 is installed on the level frame 1 through the locking device 22. When the locking device 22 is released, the laser distance measuring unit 2 on the end face can be detached and used as a distance meter alone, realizing multiple usage modes.

It should be noted that the locking device 22 is installed in the locking hole 24 provided on the level frame 1 and the installation hole 25 provided on the laser distance measuring unit 2 through a clamp ring 23 and a screw. Wherein, the positions of the locking holes 25 provided on the level frame 2 and the mounting holes 25 provided on the laser distance measuring unit 2 are adapted.

It should be noted that the locking device 22 includes a locking button 26 with a protrusion on the top. The locking button 36 is a hollow structure. The hollow structure is equipped with a spring 27 through which the locking button 26 protrudes in the locking hole 24.

The adjustment device includes two adjustment screws III28 arranged on one of the reference surfaces of the level frame 1, and the two adjustment screws III28 are respectively located at the front and rear ends of the laser distance measuring unit 2. The adjustment screws III28 can adjust the laser emitting and receiving device 5 The tilt angle of the front and rear ends can be adjusted.

Example 5 (Removable box level ruler)

As shown in Figures 11-13, you can refer to the structure of Embodiment 1. The difference from Embodiment 1 is that the level frame 1 is a box structure, and the laser distance measuring unit 2 is detachably connected to the level frame 1. The distance unit 2 is a whole and is arranged at one end of the level frame 1.

The adjusting device includes an adjusting bracket 29 arranged in the level frame 1, and the laser distance measuring unit 2 is located in the adjusting bracket 29. Two screw holes 30 are provided on both sides and bottom of the adjusting bracket 29 and the level frame 1 at the same position. , The screw hole 20 is provided with an adjusting screw IV31; the tail of the adjusting bracket 29 is also provided with an adjusting nut 32. It should be noted that the adjustment bracket 29 can be moved in the level frame 1 by turning the screw IV31, so as to achieve the movement of the laser distance measuring unit 2 fixed in the adjustment bracket 29 and realize the adjustment of precision.

It should be noted that by adjusting the adjusting screw IV31 and the adjusting nut 32, the adjusting bracket can drive the laser distance measuring unit 2 to move in the XY, XZ rotation and X linear directions.

Example 6 (Removable I-shaped level)

As shown in Figures 14-17, you can refer to the structure of Embodiment 1. The difference from Embodiment 1 is that the level frame 1 is an I-shaped frame 33, and the laser distance measuring unit 2 and the level frame 3 are detachably connected. The laser distance measuring unit 2 is a whole and is arranged at one end of the level frame 1.

Wherein, a guide rail 34 is provided in the I-shaped frame 33, and the bottom of the laser ranging unit 2 is provided with a groove 35 matching the guide rail 34, and the groove 35 can make the laser ranging unit 2 slide on the guide rail 34;

The two sides of the I-shaped frame 33 are provided with positioning holes 36, and positioning screws 37 are provided in the positioning holes 36 (the positioning holes and the positioning screws cooperate to form a positioning device), and the positioning screws 37 are used to limit the laser ranging unit 2 Movement within the I-shaped frame 33.

It should be noted that the above positioning device is used to restrict the laser distance measuring unit 2 from being disassembled and then assembled on the level frame 1 to ensure its reference accuracy.

The adjusting device includes two adjusting screws V (not shown in the figure) arranged on the guide rail 34. The two adjusting screws V are respectively located at the front and rear ends of the laser distance measuring unit 2 for adjusting the laser distance measuring unit 2 on the guide rail 34. The accuracy of the position.

Example 7

An end cover 38 is provided on one end of the level frame 1 close to the laser distance measuring unit 2, and the end cover 38 is provided with a laser hole 39, and the laser hole is a through hole or a transparent hole.

It should be noted that the connection mode of the end cover 38 and the level frame 1 can be multiple, that is, the connection mode of the end cover 38 and the level frame 1 is a fixed connection, such as welding, interference, etc.; it can also be detachable Connections, such as snaps, screw connections, etc., are convenient for disassembly and maintenance.

In the present application, an end cover 38 is provided at one end of the level frame 1 close to the laser distance measuring unit 2, which can effectively prevent dust and debris from entering the level frame 1, and the detachable connection mode is convenient for update and maintenance.

It should be noted that the end of the level frame 1 close to the level measurement unit 3 is provided with a hanging hole 4, when the laser ranging level is not used, the hanging hole 4 is used to hang the laser ranging level, or it can be directly Tie a lanyard on the hanging hole 4 for easy carrying.

The preferred embodiments of the present application are described in detail above. It should be understood that ordinary technologies in the field can make many modifications and changes according to the concept of this application without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the application and the prior art should fall within the scope of protection determined by the claims.

Claims

A laser ranging level, which is characterized in that it comprises a level frame, a laser ranging unit and a level measuring unit, the laser ranging unit and the level measuring unit are both placed in the level frame, the An adjustment device is provided between the level frame and the laser distance measurement unit, and the adjustment device is telescopically connected to the laser distance measurement unit so that the laser distance measurement unit has at least one degree of freedom adjustable in the distance measurement direction .
The laser ranging level of claim 1, wherein the laser ranging unit is fixedly connected to the level frame;

The laser ranging unit includes a laser emitting and receiving device, a display screen, a switch button, and a power supply that are connected to each other;

The level frame includes a housing I fixed by screws, an I-shaped main frame, and a housing II. The housing I, the I-shaped main frame, and the housing II form a cavity, and the The laser ranging unit is located in the cavity;

The laser emitting and receiving device is fixed on the housing II, and is limited by the ribs on the housing II, the display screen is fixed on the housing I, the switch button and the The power source is located between the display screen and the level measurement unit.
The laser distance measuring level of claim 2, wherein the adjusting device comprises two adjusting screws I arranged on the reference surface of the bottom of the I-shaped frame, and the two adjusting screws I are respectively Located at the front and rear of the laser emitting and receiving device.
The laser distance measuring level according to claim 2 or 3, wherein the adjusting device further comprises wedge grooves fixed on both side walls of the I-shaped main frame by screws, and two A wedge is installed in the wedge groove; the side of the wedge away from the screw is a downward slope.
The laser ranging level of claim 1, wherein the laser ranging unit is fixedly connected to the level frame;

The laser ranging unit includes a laser emitting and receiving device, a display screen, a switch button, and a power supply that are connected to each other;

The level frame includes a housing I and a housing II fixed by screws, the housing I and the housing II form a cavity, the laser distance measuring unit is located in the cavity, and the laser The transmitting and receiving device is fixed on the housing II, and is limited by the ribs on the housing II, the display screen is fixed on the housing I, the switch button and the power supply are located in the Between the display screen and the level measurement unit.
The laser distance measuring level according to claim 5, wherein the adjusting device comprises wedge grooves fixed on the two side walls of the housing II by screws, and both of the wedge grooves are A wedge is fitted, and the side of the wedge away from the screw is a downward slope.
The laser ranging level of claim 6, wherein the adjusting device further comprises an adjusting screw II arranged at the rear end of the laser emitting and receiving device, and the adjusting screw II is used for adjusting the laser emitting and receiving device. The left and right swing angle of the launch port of the device.
The laser ranging level of claim 1, wherein the laser ranging unit is detachably connected to the level frame, and the laser ranging unit is a whole and is arranged at the level One end of the ruler frame.
The laser distance measuring level according to claim 8, wherein the level frame is a box structure, and the adjustment device includes two adjustment screws III arranged on one of the reference surfaces of the level frame. , And the two adjusting screws III are respectively located at the front end and the rear end of the laser distance measuring unit, and the laser distance measuring unit is fixed on the horizontal ruler frame by a locking device.
The laser distance measuring level of claim 9, wherein the locking device comprises a locking button with a protrusion on the top, the locking button is of a hollow structure, and the hollow structure is equipped with a spring, and the locking The device is installed in the locking hole provided on the level frame and the installation hole provided on the laser distance measuring unit through a clamp ring and a screw.
The laser ranging level ruler of claim 8, wherein the level ruler frame is a box structure, the adjusting device comprises an adjusting bracket arranged in the level ruler frame, and the laser distance measuring unit Located in the adjusting bracket, two screw holes are provided on both sides and bottom of the adjusting bracket and the level frame at the same position, and all the screw holes are provided with adjusting screws IV; There is also an adjusting nut at the tail.
The laser ranging level of claim 8, wherein the level frame is an I-shaped frame, a guide rail is provided in the I-shaped frame, and the bottom of the laser ranging unit is provided with The grooves that match the guide rails, the two sides of the I-shaped frame are provided with positioning holes, and the positioning holes are provided with positioning screws, and the positioning screws are used to restrict the laser ranging unit Movement within the I-shaped frame.
The laser distance measuring level according to claim 12, characterized in that the adjusting device comprises two adjusting screws V arranged on the guide rail, and the two adjusting screws V are respectively located in the laser distance measuring unit. The front end and the rear end are used to adjust the position of the adjusting laser ranging unit on the guide rail.