Range finder with angle measurement function

Abstract

The utility model discloses a range finder with an angle measurement function, which relates to the technical field of range finders, and comprises a main body ruler, an auxiliary ruler, an angle measurement module, a range finding module, a digital display module and a power supply module, the range finding module, the digital display module and the power supply module are arranged in a shell of the main body ruler, and one end of the main body ruler is hinged with one end of the auxiliary ruler through a rotating shaft. Scale marks are arranged on the auxiliary ruler, an angle measurement module is arranged on the rotating shaft, the angle measurement module and the distance measurement module are both in communication connection with a digital display module, and the digital display module is electrically connected with a power supply module. According to the utility model, two functions of angle measurement and distance measurement are effectively combined, the scale on the angle measurement auxiliary ruler is used for measuring the distance in a blind area, the precision is higher than that of the existing distance measuring instrument, the angle measurement range is expanded, and any angle can be measured in a full-scale manner, so that the problems of short-distance blind area and large error of the distance measuring module are solved; and the range and the portability of the angle measuring scale are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rangefinders, in particular to a rangefinder with an angle measurement function. Background Art

[0002] Ultrasonic ranging, laser ranging, infrared ranging and electromagnetic wave ranging are all commonly used non-contact engineering ranging methods. They are simple, reliable, low-cost and easy to use, and are often used in engineering and civil measurements.

[0003] Traditional handheld rangefinders are limited by optical reasons or the transmission of sound and electromagnetic waves. The initial measurement limit of close distance is about 2cm-10cm, which is called the blind area. The accuracy of close distance measurement is usually not very high, generally ranging from about 5mm to 1cm. Traditional angle rulers are large in size and often measure at fixed angles, which are inconvenient to carry and use. Utility Model Content

[0004] The purpose of the utility model is to provide a rangefinder with an angle measurement function to solve the problems existing in the above-mentioned prior art, effectively combine the two functions of angle measurement and distance measurement, and improve the accuracy of short-range distance measurement and the portability of the angle ruler.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] The utility model provides a rangefinder with an angle measurement function, comprising a main scale, an auxiliary scale, an angle measurement module, a distance measurement module, a digital display module and a power supply module, wherein the distance measurement module, the digital display module and the power supply module are arranged in a shell of the main scale, one end of the main scale is hinged with one end of the auxiliary scale through a rotating shaft, scale lines are arranged on the auxiliary scale, the angle measurement module is arranged on the rotating shaft, the angle measurement module and the distance measurement module are both communicatively connected with the digital display module, and the digital display module is electrically connected with the power supply module.

[0007] Preferably, the distance measuring module is arranged at the front end of the shell, and the front end of the shell is provided with a emitting hole for sound waves or light waves.

[0008] Preferably, the length of the main ruler is the same as that of the auxiliary ruler and is 5 cm-10 cm, and the accuracy of the scale lines on the auxiliary ruler is 1 mm.

[0009] Preferably, a plurality of scribed holes are arranged at equal intervals in the middle of the auxiliary ruler, and the interval between adjacent scribed holes is 1 cm-2 cm.

[0010] Preferably, a digital display screen is arranged at the front end of the upper surface of the shell, the power supply module and a plurality of control buttons are arranged in the middle, and the control buttons are communicatively connected with the digital display module.

[0011] Preferably, one end of the rotating shaft is vertically rotatably arranged in the shell, and the other end passes through the shell and is fixedly connected to the auxiliary ruler. A retaining spring, an elastic silicone pad, a fixing part in the angle measuring module and a rotating part in the angle measuring module are sequentially sleeved on the rotating shaft. The fixing part in the angle measuring module is clamped on the shell, and the rotating part in the angle measuring module is fixedly connected to the flange circular end surface of the auxiliary ruler. The auxiliary ruler is located below or on the side of the shell.

[0012] Preferably, both ends of the rotating shaft are horizontally rotatably arranged in the shell, and the rotating shaft is sequentially sleeved with a fixing part in the angle measuring module, a rotating part in the angle measuring module, a rotating wheel and an elastic silicone pad, the fixing part in the angle measuring module is clamped in the shell, the rotating wheel is fixedly connected to the rotating shaft, the auxiliary ruler is fixedly connected to the arc surface of the rotating wheel, and the rotating part in the angle measuring module is fixedly connected to the circular end surface, and the auxiliary ruler is located below the shell.

[0013] Preferably, the power supply module includes any one of a built-in battery pack, a detachable battery pack, a battery box plus a battery, or a wireless power supply module.

[0014] Preferably, the ranging module includes any one of laser ranging, ultrasonic ranging or millimeter wave ranging.

[0015] Preferably, the angle measurement module includes any one of a capacitive angle measurement sensor, an electronic goniometer, a Hall magnetic encoder angle measurement sensor or a grating code disk angle measurement sensor.

[0016] Compared with the prior art, the utility model has achieved the following technical effects:

[0017] The utility model effectively combines the two functions of angle measurement and distance measurement, and uses the scale on the angle measurement auxiliary ruler to test the distance in the blind area. The accuracy is higher than that of the existing distance meter, and the angle measurement range is expanded. Any angle in the full range can be measured, which solves the problems of the short-range blind area and large error of the distance measurement module, and improves the range and portability of the angle measurement ruler. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure of a distance meter with an angle measurement function in Embodiment 1 of the present utility model;

[0020] Figure 2 This is an expanded diagram of the first rangefinder with angle measurement function in the first embodiment of the utility model;

[0021] Figure 3 This is an expanded diagram of the second rangefinder with angle measurement function in the first embodiment of the utility model;

[0022] Figure 4 It is a side view of the second rangefinder with angle measurement function in the first embodiment of the utility model;

[0023] Figure 5 For this utility model Figure 1 Schematic diagram of the internal structure;

[0024] Figure 6 For this utility model Figure 5 A local enlarged schematic diagram of the middle A;

[0025] Figure 7 This is a front view of a rangefinder with an angle measurement function in Embodiment 2 of the present utility model;

[0026] Figure 8 It is a side view of the rangefinder with angle measurement function in the second embodiment of the utility model;

[0027] Fig. 9 This is a schematic diagram of the unfolded structure of the rangefinder with angle measurement function in the second embodiment of the present utility model;

[0028] Fig.10 In the second embodiment of the present utility model Figure 7 Schematic diagram of the internal structure;

[0029] Fig.11 This is the second embodiment of the utility model Fig.10 A partial enlarged schematic diagram of point B in the middle;

[0030] In the figure: 1-main ruler, 2-auxiliary ruler, 3-angle measuring module, 4-distance measuring module, 5-digital display module, 6-power supply module, 7-scale line, 8-marking hole, 9-control button, 10-fixed part, 11-rotating part, 12-rotating shaft, 13-circlip, 14-rotating wheel, 15-elastic silicone pad. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] The utility model aims to provide a rangefinder with an angle measurement function to solve the problems existing in the prior art, effectively combine the angle measurement and distance measurement functions, and improve the short-range distance measurement accuracy and the portability of the angle ruler.

[0033] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] Embodiment 1

[0035] like Figures 1 to 6 As shown, in this embodiment, a distance meter with an angle measurement function is provided, including a main scale 1, an auxiliary scale 2, an angle measurement module 3, a distance measurement module 4, a digital display module 5 and a power supply module 6. The distance measurement module 4, the digital display module 5 and the power supply module 6 are arranged in the housing of the main scale 1. One end of the main scale 1 is hinged with one end of the auxiliary scale 2 through a rotating shaft 12. A scale line 7 is arranged on the auxiliary scale 2. The angle measurement module 3 is arranged on the rotating shaft 12. The angle measurement module 3 and the distance measurement module 4 are both connected to the digital display module 5 for communication, and the digital display module 5 is electrically connected to the power supply module 6. The main scale 1 and the auxiliary scale 2 are hinged through the rotating shaft 12. The angle between the two scales is not fixed, which can expand the angle measurement range, and any angle in the full range of 0°-180° can be measured.

[0036] As an optional solution, in this embodiment, the distance measurement module 4 is arranged at the front end of the shell, and the front end of the shell is provided with a sound wave or light wave emission hole without any obstruction, which is convenient for long-distance distance measurement.

[0037] As an optional solution, in this embodiment, the length of the main ruler 1 is the same as that of the auxiliary ruler 2 and is 5 cm-10 cm, and the precision of the scale line 7 on the auxiliary ruler 2 is 1 mm. In this embodiment, the auxiliary ruler 2 can be used to measure the distance of 0-10 cm in the short-range blind area of ​​the distance measuring module 4, and the precision can reach 1 mm, which is higher than the short-range measurement precision of the traditional rangefinder.

[0038] As an optional solution, in this embodiment, a plurality of marking holes 8 are evenly spaced in the middle of the auxiliary ruler 2, and the spacing between adjacent marking holes 8 is 1 cm-2 cm, so as to facilitate the insertion of a pen tip for marking.

[0039] As an optional solution, in this embodiment, a digital display screen is provided at the front end of the upper surface of the housing, a power supply module 6 and a plurality of control buttons 9 are provided in the middle, and the control buttons 9 are communicatively connected with the digital display module 5. The digital display screen can be used to display the distance measurement or angle measurement result information of the distance measurement module 4, and the control buttons 9 can be used for power on and off, various function switching, unit switching, reference switching, etc.

[0040] As an optional solution, in the present embodiment, one end of the rotating shaft 12 is vertically rotatably arranged in the shell, and the other end passes through the shell and is fixedly connected to the auxiliary ruler 2. The auxiliary ruler 2 and the rotating shaft 12 are processed and injection molded as one piece, and can also be fixed together by screws after being disassembled. Considering the processing and manufacturing costs, the rotating shaft 12 is sequentially sleeved with a retaining spring 13, an elastic silicone pad 15, a fixing part 10 in the angle measuring module 3 and a rotating part 11 in the angle measuring module 3. The fixing part 10 in the angle measuring module 3 is clamped on the shell, and the rotating part 11 in the angle measuring module 3 is fixedly connected on the flange circular end surface of the auxiliary ruler 2. The fixing part 10 is clamped in the limiting groove of the shell, and the rotating part 11 can usually be fixedly connected by a positioning groove and glue. The auxiliary ruler 2 is located below or on the side of the shell and can rotate 360° around the rotating shaft 12. The spring 13 is used to compress the elastic silicone pad 15, so that the elastic silicone pad 15 forms a reverse elastic force acting on the spring 13 due to deformation, so that the rotating member 11 is closely attached to the main ruler 1; thereby, the fixed member 10 and the rotating member 11 are closely attached to ensure the accuracy of angle measurement. In this embodiment, the auxiliary ruler 2 can be rotated out parallel to the bottom surface, or the auxiliary ruler 2 can be rotated to open from the side, such as Figure 2 or Figure 3 shown.

[0041] As an optional solution, the power supply module 6 in this embodiment includes any one of a built-in battery pack, a detachable battery pack, a battery box plus a battery, or a wireless power supply module, which is used to provide power support for the entire electronic measurement system.

[0042] As an optional solution, the distance measurement module 4 in this embodiment includes any one of laser distance measurement, ultrasonic distance measurement or millimeter wave distance measurement to achieve straight-line distance measurement between the rangefinder and the test target.

[0043] As an optional solution, the angle measurement module 3 in this embodiment includes any one of a capacitive grating angle measurement sensor, an electronic goniometer, a Hall magnetic encoder angle measurement sensor, or a grating code disk angle measurement sensor. The angle measurement structure generally includes a matching circuit board (fixed part 10) and a measurement auxiliary sheet (rotating part 11), and the electronic angle measurement function is realized by detecting the rotation angle of the measurement auxiliary sheet by the detection unit on the matching circuit board. For example, in the capacitive grating angle measurement sensor, the fixed part 10 is a fixed grating, and the rotating part 11 is a moving grating; in the Hall magnetic encoder angle measurement sensor, the fixed part 10 is a magnetic sensor, and the rotating part 11 is a magnetic grating; in the grating code disk angle measurement sensor, the fixed part 10 is a photoelectric sensor, and the rotating part 11 is a grating encoder disk; in the electronic goniometer, the fixed part 10 is a decoding circuit, and the rotating part 11 is an electronic angle sensor.

[0044] In this embodiment, distance measurement can be applied in the following scenarios: measuring straight-line distance, area, and volume during home decoration, for elevation, positioning, and acceptance in engineering, and for calculating earthwork, material area, and volume in building materials. Angle measurement can be applied in the following scenarios: measuring inner and outer angles of walls, panels, cabinets, window frames, door frames, and tile cutting, and determining special angles for site layout, tiling, and decoration.

[0045] Embodiment 2

[0046] like Figures 7 to 11 As shown, in this embodiment, a rangefinder with an angle measurement function is provided. Different from the embodiment 1, the two ends of the rotating shaft 12 are horizontally rotatably arranged in the housing, and the rotating shaft 12 is sequentially sleeved with a fixing member 10 in the angle measuring module 3, a rotating member 11 in the angle measuring module 3, a rotating wheel 14 and an elastic silicone pad 15. The fixing member 10 in the angle measuring module 3 is clamped in the housing, and the rotating wheel 14 is fixedly connected to the rotating shaft 12. The arc surface of the rotating wheel 14 is fixedly connected with an auxiliary ruler 2, and the circular end surface is fixedly connected with the rotating member 11 in the angle measuring module 3. The auxiliary ruler 2 is located below the housing and can be rotated at least 180° around the rotating shaft 12. In this embodiment, the upper and lower measuring rulers can be rotated from the bottom surface of the main ruler 1 to open for angle measurement. The elastic silicone pad 15 and the rotating wheel 14 are interference fit, and are squeezed and deformed when installed in the housing, thereby forming an elastic force acting on the rotating wheel 14; the fixing member 10 and the rotating member 11 are closely fitted to ensure the accuracy of angle measurement. The auxiliary ruler 2, the rotating shaft 12, and the rotating wheel 14 can be processed and injection molded as one piece, or they can be disassembled and fixed together by screws, depending on the processing and manufacturing costs.

[0047] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A rangefinder with angle measurement function, characterized in that: It comprises a main ruler, an auxiliary ruler, an angle measuring module, a distance measuring module, a digital display module and a power supply module. The distance measuring module, the digital display module and the power supply module are arranged in the housing of the main ruler. One end of the main ruler is hinged with one end of the auxiliary ruler through a rotating shaft. The auxiliary ruler is provided with scale lines. The angle measuring module is arranged on the rotating shaft. The angle measuring module and the distance measuring module are both in communication connection with the digital display module. The digital display module is electrically connected with the power supply module. The two ends of the rotating shaft are horizontally rotatably arranged in the shell, and the rotating shaft is sequentially sleeved with the fixing part in the angle measuring module, the rotating part in the angle measuring module, the rotating wheel and the elastic silicone pad, the fixing part in the angle measuring module is clamped in the shell, the rotating wheel is fixedly connected to the rotating shaft, the auxiliary ruler is fixedly connected to the arc surface of the rotating wheel, and the rotating part in the angle measuring module is fixedly connected to the circular end surface, and the auxiliary ruler is located below the shell; a plurality of scribed holes are evenly spaced in the middle of the auxiliary ruler, and the spacing between adjacent scribed holes is 1cm-2cm.

2. The rangefinder with angle measurement function according to claim 1, characterized in that: The distance measuring module is arranged at the front end of the shell, and the front end of the shell is provided with a transmitting hole for sound waves or light waves.

3. The rangefinder with angle measurement function according to claim 1, characterized in that: The length of the main ruler is the same as that of the auxiliary ruler and is 5 cm to 10 cm. The accuracy of the scale lines on the auxiliary ruler is 1 mm.

4. The rangefinder with angle measurement function according to claim 1, characterized in that: A digital display screen is arranged at the front end of the upper surface of the shell, and the power supply module and a plurality of control buttons are arranged in the middle, and the control buttons are communicatively connected with the digital display module.

5. The rangefinder with angle measurement function according to claim 1, characterized in that: One end of the rotating shaft is vertically rotatably arranged in the shell, and the other end passes through the shell and is fixedly connected to the auxiliary ruler. A retaining spring, an elastic silicone pad, a fixing part in the angle measuring module and a rotating part in the angle measuring module are sequentially sleeved on the rotating shaft. The fixing part in the angle measuring module is clamped on the shell, and the rotating part in the angle measuring module is fixedly connected to the flange circular end surface of the auxiliary ruler. The auxiliary ruler is located below or on the side of the shell.

6. The rangefinder with angle measurement function according to claim 1, characterized in that: The power supply module includes any one of a built-in battery pack, a detachable battery pack, a battery box plus a battery, or a wireless power supply module.

7. The rangefinder with angle measurement function according to claim 1, characterized in that: The ranging module includes any one of laser ranging, ultrasonic ranging or millimeter wave ranging.

8. The rangefinder with angle measurement function according to claim 1, characterized in that: The angle measurement module includes any one of a capacitive angle measurement sensor, an electronic angle meter, a Hall magnetic encoder angle measurement sensor or a grating code disk angle measurement sensor.

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