Laser range finder with curved surface measurement function
By using a mechanical transmission structure of rollers, gear sets and rotary encoders in the laser rangefinder, combined with the design of laser rangefinder and detachable connection, the existing laser rangefinder has solved the problem of reduced measurement accuracy and high cost in dust environments, and achieved high-precision and low-cost curved surface measurement effect.
Patent Information
- Application Number
- CN202421427720.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-06-21
AI Technical Summary
When used in dusty environments, existing laser rangefinders with curved surface measurement function can easily lead to reduced grating measurement accuracy and high-quality dustproof structures.
The mechanical transmission structure of rollers, gear sets and rotary encoder is adopted, combined with laser ranging modules, to realize curved surface measurement, and the bottom cover and shell are removable connection through multiple snaps and buckles, reducing the use of screws.
It improves the applicability and accuracy of laser rangefinders in complex surface measurements, reduces production costs, reduces dust impact, and ensures high accuracy and reliability of measurement results.
Smart Images
Figure CN222544646U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of distance measuring tools, in particular to a laser distance meter with a curved surface measuring function. Background Art
[0002] Laser rangefinder is an instrument that uses a certain parameter of modulated laser to measure the distance to the target. Most laser rangefinders can only measure straight lines, and when measuring curved or irregular surfaces, laser rangefinders will be subject to certain limitations. Therefore, a laser rangefinder with curved surface measurement function has appeared on the market.
[0003] However, existing laser rangefinders with curved surface measurement function all use gratings as encoders for curved surface distance measurement, and then set grating scales on a roller, and move the roller along the curved surface to achieve curved surface distance measurement.
[0004] Although the grating encoder has a relatively high accuracy, its cost is also relatively high. Moreover, it has high requirements for the use environment. When dust enters the grating, it is easy to produce large errors. Laser rangefinders with surface measurement function are basically used in more complex environments such as home decoration and construction. In such an environment, there are many impurities such as dust and debris, which can easily enter the interior of the laser rangefinder, causing certain errors to the grating.
[0005] Therefore, laser rangefinders using grating encoders need to have a higher level of dustproof structure. For laser rangefinders without dustproof structure, long-term use in dusty environments will cause the measurement accuracy of the grating to decrease, causing inconvenience to users. Utility Model Content
[0006] 1. Technical issues to be resolved
[0007] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a laser rangefinder with a curved surface measurement function, which solves the technical problem that the existing laser rangefinder with a curved surface measurement function using a grating encoder needs to have a higher level of dustproof structure and has a high production cost; and for the laser rangefinder with a curved surface measurement function using a grating encoder without a dustproof structure, after long-term use in a complex environment with dust, the measurement accuracy of the grating will be reduced, causing inconvenience to the user.
[0008] (II) Technical solution
[0009] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:
[0010] The utility model provides a laser rangefinder with a curved surface measurement function, comprising a shell, a bottom cover and a panel respectively connected to two sides of the shell, and also comprising a roller distance measurement component and a laser distance measurement module installed in the shell and on the bottom cover; the roller distance measurement component comprises a roller, a gear set and a rotary encoder, the gear set and the rotary encoder are both installed in the shell, the gear set is rotatably installed in a mounting position on the bottom cover, the rotary encoder is fixedly installed inside the shell and the rotary encoder is in contact with the gear set, and a rotary code disk located inside the rotary encoder is rotatably mounted. The rotary code disk is installed on the gear set and can rotate with the rotation of the gear set, so that the rotary encoder can measure the number of rotations of the gear set. A first through hole is opened on the outer wall of the shell, a part of the roller is placed in the first through hole and the roller is sleeved on the gear set, so that the roller can drive the gear set to rotate, and the rotary encoder can measure the distance moved by the roller by measuring the number of rotations of the gear set; a laser port is provided at the position of the shell corresponding to the laser emitting position of the laser ranging module, so that the laser ranging module can send and receive laser through the laser port.
[0011] Preferably, the gear set includes a driving gear, a gear seat and a driven gear; the driving gear and the driven gear can be rotatably installed in the installation position, a side wall of the driving gear away from the installation position is fixedly connected to the gear seat, the roller is sleeved on the outer wall of the gear seat and the central axes of the driving gear, the gear seat and the roller coincide; the driven gear is rotatably installed in the installation position and the driven gear is meshed with the driving gear, and a fixed shaft coaxial with the driven gear is fixedly installed on the side of the driven gear away from the installation position, the cross-section of the fixed shaft is polygonal, the rotary encoder is provided with a second through hole for plugging with the fixed shaft, the rotary encoder is inserted on the fixed shaft through the rotary code disk in the second through hole, so that the rotary code disk in the rotary encoder can rotate synchronously with the driven gear; there is a gap between the rotary encoder and the roller.
[0012] Preferably, a rubber sleeve is sleeved on the outer wall of the roller.
[0013] Preferably, a plurality of buckles are provided on the inner side wall of the shell, a plurality of buckle plates matching with the plurality of buckles are provided on a side wall of the bottom cover facing the panel, and the bottom cover is buckled with the plurality of buckles on the shell through the plurality of buckle plates.
[0014] Preferably, the laser rangefinder further comprises a circuit board; the circuit board is installed in the housing and is located between the gear set and the panel, a side wall of the rotary encoder away from the driven gear is fixedly connected to the circuit board, a clearance area is provided on the circuit board, and the laser ranging module is located in the clearance area.
[0015] Preferably, a support platform is provided on the bottom cover and the laser ranging module is installed on the support platform.
[0016] Preferably, the laser rangefinder also includes an indicator light and a light guide column; the side wall of the light guide column is snap-fitted to the inner wall of the housing, the top of the light guide column passes through the panel and is flush with a side wall of the panel away from the bottom cover, and the indicator light is fixedly mounted on the circuit board and is located inside the light guide column.
[0017] Preferably, a magnet is provided on a side wall of the bottom cover facing the panel.
[0018] Preferably, a charging interface is fixedly installed on one end of the circuit board away from the laser ranging module, a charging port corresponding to the charging interface is provided on the outer wall of the shell, and a protective cover is detachably installed at the charging port; a battery is also provided between the bottom cover and the circuit board, and the battery is electrically connected to the charging interface so as to charge the battery through the charging interface.
[0019] Preferably, a screen and buttons are provided on the panel, and the screen, the laser ranging module, the rotary encoder, the charging interface, the indicator light, the buttons and the battery are all electrically connected to the circuit board.
[0020] (III) Beneficial effects
[0021] The beneficial effects of the utility model are:
[0022] 1. The utility model is a laser rangefinder with a curved surface measurement function. By setting a roller, a gear set, a rotary encoder and a laser rangefinder module, it not only integrates curved surface measurement and straight line measurement into one, improves the applicability of the laser rangefinder, but also the roller, the gear set and the rotary encoder can improve the applicability and accuracy of complex surface measurement. The roller directly contacts and rolls along the curved surface, so that the laser rangefinder can accurately measure the distance even on irregular or curved objects. Through the mechanical transmission structure of the roller, the gear set and the rotary encoder, not only the stability and durability of the laser rangefinder are enhanced, even when used in the fields of construction, furniture manufacturing, interior decoration, etc., dust and other impurities will not enter the laser rangefinder to affect the accuracy of laser ranging, but also realizes high-sensitivity detection of tiny displacements, thereby ensuring the high accuracy and reliability of the measurement results. By setting a roller, a gear set and a rotary encoder, the utility model effectively improves the ranging accuracy of the laser rangefinder, improves work efficiency and reduces production costs.
[0023] 2. The utility model is a laser rangefinder with a curved surface measurement function. By setting a driving gear and a driven gear, and the driving gear and the driven gear are meshed, it can make the driving gear more stable when driving the driven gear to rotate, so that even if the roller encounters resistance changes when rolling along the curved surface, the driving gear and the driven gear can maintain a stable speed ratio, thereby reducing measurement errors and improving the reliability of measurement results. By plugging the rotating code disk in the rotary encoder onto the fixed shaft, it can not only make the rotating code disk rotate coaxially with the fixed shaft as the fixed shaft rotates, but also facilitate the assembly and maintenance of the equipment, and it is also more convenient when it is necessary to adjust or replace parts. By sleeved with a rubber sleeve on the outer wall of the roller, it can increase the friction between the roller and the object to be measured, and can also reduce the wear rate of the roller.
[0024] 3. The utility model provides a laser rangefinder with a curved surface measurement function. By providing a plurality of buckles and a plurality of buckle plates, the bottom cover and the outer shell can be detachably connected, thereby reducing the use of screws. Thus, the laser rangefinder can be quickly disassembled when a failure occurs, which is convenient for replacement and maintenance and also easier to install.
[0025] 4. The utility model provides a laser rangefinder with a curved surface measurement function. By providing a circuit board and a clearance area on the circuit board, the internal space is effectively utilized, so that the laser rangefinder is more compact, easy to carry and operate, while maintaining good structural strength and stability.
[0026] 5. The utility model provides a laser rangefinder with a curved surface measurement function. By setting a support platform, it can provide a stable installation platform for the laser rangefinder module, ensuring that the laser rangefinder module remains stable during operation and is not affected by external vibrations or slight movements, thereby maintaining the precise direction of laser emission and ensuring the accuracy of the measurement results. In addition, the support platform can also serve as a thermal buffer area for the laser rangefinder module, assisting the laser rangefinder module in heat dissipation, preventing overheating from affecting the measurement performance of the laser rangefinder module and extending the service life of the equipment.
[0027] 6. The utility model provides a laser rangefinder with a curved surface measurement function. By providing an indicator light and a light guide, the operating status of the laser rangefinder can be directly and clearly displayed to the user. The user can easily understand the working status of the device through the color or flashing mode of the indicator light, which improves the convenience and intuitiveness of use. By providing a magnet, the laser rangefinder can be adsorbed on metal surfaces such as refrigerators and ovens, saving more space. By providing a charging port and a battery, it can be portable, and the user can charge at any time according to actual needs, which enhances the flexibility and adaptability of the device. By providing a protective cover, the charging port can be protected from damage by the external environment, extending the service life, while also maintaining the overall beauty of the device. By providing a screen and buttons, the screen can instantly display information such as measurement results and device status, and the buttons provide users with an intuitive operating interface, enhancing the real-time and convenience of human-computer interaction. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a laser rangefinder with a curved surface measurement function according to the utility model;
[0029] Figure 2 This is a schematic diagram of the overall three-dimensional structure without a panel of a laser rangefinder with a curved surface measurement function of the utility model;
[0030] Figure 3 This is a schematic diagram of the overall three-dimensional structure of a laser rangefinder with curved surface measurement function without a panel and a circuit board of the utility model;
[0031] Figure 4 This is a schematic diagram of the overall three-dimensional structure of a bottom cover of a laser rangefinder with a curved surface measurement function according to the utility model;
[0032] Figure 5 This is a schematic diagram of the overall three-dimensional structure of a shell of a laser rangefinder with a curved surface measurement function according to the utility model;
[0033] Figure 6 This is a schematic diagram of the overall three-dimensional structure disassembly of a laser rangefinder with a curved surface measurement function according to the utility model;
[0034] Figure 7 The utility model is a schematic diagram of the overall three-dimensional disassembled structure of a roller distance measuring component of a laser distance meter with a curved surface measurement function.
[0035] [Description of Reference Numerals]
[0036] 1: Shell; 11: Buckle; 2: Bottom cover; 21: Buckle plate; 22: Support platform; 23: Laser port; 24: Charging port; 3: Panel; 31: Screen; 32: Button; 4: Roller distance measurement component; 41: Roller; 42: Gear set; 421: Driving gear; 422: Gear seat; 423: Driven gear; 424: Fixed shaft; 43: Rotary encoder; 5: Circuit board; 6: Laser distance measurement module; 7: Light guide column; 8: Magnet; 9: Charging port; 91: Protective cover; 10: Battery. DETAILED DESCRIPTION
[0037] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.
[0038] Embodiment 1
[0039] like Figure 1-Figure 7 As shown, a laser rangefinder with a curved surface measurement function of this embodiment includes a shell 1, a bottom cover 2 and a panel 3 respectively connected to two sides of the shell 1, and also includes a roller ranging component 4 and a laser ranging module 6 installed in the shell 1 and on the bottom cover 2.
[0040] Specifically, a laser port 23 is provided at a position of the housing 1 corresponding to the laser emitting position of the laser ranging module 6 , so that the laser ranging module 6 can transmit and receive laser light through the laser port 23 . The roller ranging assembly 4 includes a roller 41, a gear set 42 and a rotary encoder 43. The gear set 42 and the rotary encoder 43 are both installed in the housing 1. The gear set 42 is rotatably installed in the mounting position on the bottom cover 2. The rotary encoder 43 is fixedly installed inside the housing 1 and the rotary encoder 43 abuts against the gear set 42. The rotary code disk located inside the rotary encoder 43 is rotatably installed on the gear set 42 and the rotary code disk can rotate with the rotation of the gear set 42, so that the rotary encoder 43 can measure the number of revolutions of the gear set 42. A first through hole is opened on the outer wall of the housing 1. A part of the roller 41 is placed in the first through hole and the roller 41 is sleeved on the gear set 42, so that the roller 41 can drive the gear set 42 to rotate. The rotary encoder 43 can measure the distance moved by the roller 41 by measuring the relationship between the circumference of the roller 41 and the angular displacement of the rotary code disk, which has been pre-calibrated, and the number of revolutions of the gear set 42 driven by the roller 41. By setting the roller 41, the gear set 42, the rotary encoder 43 and the laser distance measurement module 6, it not only integrates the curved surface measurement and the straight line measurement into one, improves the applicability of the laser distance meter, but also the roller 41, the gear set 42, and the rotary encoder 43 can improve the applicability and accuracy in the measurement of complex surfaces. The roller 41 directly contacts and rolls along the curved surface, so that the laser distance meter can accurately measure the distance even on irregular or curved objects. Through the mechanical transmission structure of the roller 41, the gear set 42 and the rotary encoder 43, not only the stability and durability of the laser distance meter are enhanced, even when used in the fields of construction, furniture manufacturing, interior decoration, etc., the accuracy of the laser distance measurement will not be affected by impurities such as dust entering the laser distance meter, and the high sensitivity detection of small displacements is realized, thereby ensuring the high accuracy and reliability of the measurement results. By setting the roller 41, the gear set 42 and the rotary encoder 43, the utility model effectively improves the ranging accuracy of the laser distance meter, and also improves the work efficiency and reduces the production cost.
[0041] More specifically, the gear set 42 includes a driving gear 421, a gear seat 422 and a driven gear 423. Both the driving gear 421 and the driven gear 423 can be rotatably installed in the installation position, a side wall of the driving gear 421 away from the installation position is fixedly connected to the gear seat 422, and the roller 41 is sleeved on the outer wall of the gear seat 422, and the central axis of the driving gear 421, the gear seat 422 and the roller 41 coincide. The driven gear 423 is rotatably installed in the installation position and the driven gear 423 is meshed with the driving gear 421, which can make the driving gear 421 more stable when driving the driven gear 423 to rotate, so that even if the roller 41 encounters resistance changes when rolling along the curved surface, the driving gear 421 and the driven gear 423 can maintain a stable speed ratio, thereby reducing measurement errors and improving the reliability of measurement results. A fixed shaft 424 coaxial with the driven gear 423 is fixedly installed on one side of the driven gear 423 away from the installation position. The cross section of the fixed shaft 424 is a polygon. The rotary encoder 43 is provided with a second through hole for plugging with the fixed shaft 424. The rotary encoder 43 is inserted on the fixed shaft 424 through the rotary code disk in the second through hole, so that the rotary code disk in the rotary encoder 43 can rotate synchronously with the driven gear 423. By plugging the rotary code disk in the rotary encoder 43 on the fixed shaft 424, it can not only make the rotary code disk coaxially rotate with the fixed shaft 424 as the fixed shaft 424 rotates, but also facilitate the assembly and maintenance of the equipment, and it is also more convenient when it is necessary to adjust or replace parts. There is a gap between the rotary encoder 43 and the roller 41 to avoid interference between the rotary encoder 43 and the roller 41, thereby avoiding large errors in the measurement of the roller distance measurement assembly 4. Preferably, a rubber sleeve is sleeved on the outer wall of the roller 41 , which can increase the friction between the roller 41 and the object to be measured and can also reduce the wear rate of the roller 41 .
[0042] Furthermore, a plurality of buckles 11 are provided on the inner side wall of the outer shell 1, and a plurality of buckle plates 21 which match the plurality of buckles 11 one by one are provided on the side wall of the bottom cover 2 facing the panel 3. The bottom cover 2 is snapped with the plurality of buckles 11 on the outer shell 1 through the plurality of buckle plates 21, which can realize a detachable connection between the bottom cover 2 and the outer shell 1 and reduce the use of screws, so that the laser rangefinder can be quickly disassembled when a failure occurs, which is convenient for replacement and maintenance, and is also easier to install.
[0043] Furthermore, the laser rangefinder further comprises a circuit board 5. The circuit board 5 is installed in the housing 1 and is located between the gear set 42 and the panel 3. A side wall of the rotary encoder 43 away from the driven gear 423 is fixedly connected to the circuit board 5. A clearance area is provided on the circuit board 5. The laser rangefinder module 6 is located in the clearance area, which effectively utilizes the internal space, making the volume of the laser rangefinder more compact, easy to carry and operate, while maintaining good structural strength and stability. Preferably, a support platform 22 is provided on the bottom cover 2 and the laser rangefinder module 6 is installed on the support platform 22, which can provide a stable installation platform for the laser rangefinder module 6, ensuring that the laser rangefinder module 6 remains stable during operation and is not affected by external vibrations or slight movements, thereby maintaining the precise direction of laser emission and ensuring the accuracy of the measurement results. Moreover, the support platform 22 can also serve as a thermal buffer area for the laser rangefinder module 6, assisting the laser rangefinder module 6 in heat dissipation, preventing overheating from affecting the measurement performance of the laser rangefinder module 6 and extending the service life of the device.
[0044] Furthermore, the laser rangefinder further includes an indicator light and a light guide column 7. The side wall of the light guide column 7 is snap-fitted with the inner wall of the housing 1, the top of the light guide column 7 passes through the panel 3 and is flush with a side wall of the panel 3 away from the bottom cover 2, and the indicator light is fixedly mounted on the circuit board 5 and is located in the light guide column 7. By providing the indicator light and the light guide column 7, the operating status of the laser rangefinder can be directly and clearly displayed to the user, and the user can conveniently understand the working status of the device through the color or flashing mode of the indicator light, which improves the convenience and intuitiveness of use.
[0045] Furthermore, a magnet 8 is provided on one side wall of the bottom cover 2 facing the panel 3, which can adsorb the laser rangefinder on a metal surface such as a refrigerator or an oven, thereby saving more space.
[0046] Furthermore, a charging interface 9 is fixedly installed on one end of the circuit board 5 away from the laser ranging module 6, and a charging port 24 corresponding to the charging interface 9 is provided on the outer wall of the housing 1. A protective cover 91 is detachably installed at the charging port 24, which can protect the charging interface 9 from damage by the external environment, extend the service life, and also maintain the overall appearance of the device. A battery 10 is also provided between the bottom cover 2 and the circuit board 5, and the battery 10 is electrically connected to the charging interface 9 so as to charge the battery 10 through the charging interface 9. By providing the charging interface 9 and the battery 10, it can be carried easily, and the user can charge at any time according to actual needs, which enhances the flexibility and adaptability of the device.
[0047] Furthermore, the panel 3 is provided with a screen 31 and a button 32, and the screen 31, the laser ranging module 6, the rotary encoder 43, the charging interface 9, the indicator light, the button 32 and the battery 10 are all electrically connected to the circuit board 5. The screen 31 can instantly display information such as measurement results and device status, and the button 32 provides an intuitive operation interface for the user, enhancing the real-time and convenience of human-computer interaction. Among them, there are multiple buttons 32, each of which has different functions, such as a power button, a mode conversion button, etc.
[0048] Furthermore, a bottom plate is clamped or adhered to a side wall of the bottom cover 2 away from the circuit board 5 , which can protect the bottom cover 2 .
[0049] Through the above structure, the working principle of a laser rangefinder with a curved surface measurement function in this embodiment is as follows:
[0050] like Figure 1-Figure 7 As shown, first assemble the laser rangefinder. When in use, press button 32 to turn on the laser rangefinder. When it is necessary to measure the straight-line distance, press button 32 to switch the laser rangefinder to the straight-line distance measurement mode. The laser distance measurement module 6 sends out a laser pulse signal and starts to measure the straight-line distance of the measured object. By receiving the laser pulse signal information returned by the measured object, the circuit board 5 calculates according to the pre-set program, and the screen 31 displays the measured distance at this time.
[0051] When it is necessary to measure a curved surface or an irregular plane, press the button 32 to convert the current laser ranging mode to the curved surface ranging mode. Then place the roller 41 at the starting point of the object to be measured, hold the laser rangefinder, and roll the roller 41 along the surface of the object to be measured. While the roller 41 is rolling, the roller 41 drives the active gear 421 to rotate, and then drives the driven gear 423 and the fixed shaft 424 to rotate, so that the rotating code disk in the rotary encoder 43 rotates with the rotation of the fixed shaft 424. Among them, the rotary encoder 43 measures the angular displacement of the rotating code disk inside it, and transmits the electrical signal of the angular displacement of the rotating code disk to the circuit board 5. The circuit board 5 calculates the electrical signal according to a pre-set program, and transmits the electrical signal of the calculation result to the screen 31. The screen 31 displays the length of the curved surface measurement at this time.
[0052] When the laser rangefinder is not in use, the button 32 is pressed again, the light of the indicator light is turned off, the laser rangefinder is turned off, and then the laser rangefinder is adsorbed on a metal object such as a refrigerator by the magnet 8.
[0053] When the power of the laser rangefinder is low, open the protective cover 91, insert the output port of the charging cable into the charging interface 9, and then charge the laser rangefinder.
[0054] It should be noted that this embodiment does not involve the improvement and use of any computer program, and only provides the screen 31 and the button 32, and the connection relationship between the screen 31, the laser ranging module 6, the rotary encoder 43, the charging interface 9, the indicator light, the button 32 and the battery 10 and the circuit board 5. The improvement of the utility model does not involve the content of the control aspect, and the existing control process is the existing content.
[0055] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0056] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0057] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.
[0058] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.
[0059] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A laser rangefinder with curved surface measurement function, comprising a housing, a bottom cover and a panel respectively connected to two sides of the housing, characterized in that: It also includes a roller distance measuring component and a laser distance measuring module installed in the housing and on the bottom cover; The roller distance measuring assembly comprises a roller, a gear set and a rotary encoder, the gear set and the rotary encoder are both installed in the housing, the gear set is rotatably installed in the mounting position on the bottom cover, the rotary encoder is fixedly installed inside the housing and the rotary encoder abuts against the gear set, a rotary code disk located inside the rotary encoder is rotatably installed on the gear set and the rotary code disk can rotate with the rotation of the gear set, so that the rotary encoder can measure the number of revolutions of the gear set, a first through hole is opened on the outer wall of the housing, a part of the roller is placed in the first through hole and the roller is sleeved on the gear set, so that the roller can drive the gear set to rotate, and the rotary encoder can measure the distance moved by the roller by measuring the number of revolutions of the gear set; A laser port is provided at a position of the housing corresponding to the laser emitting position of the laser ranging module, so that the laser ranging module can transmit and receive laser through the laser port.
2. A laser rangefinder with curved surface measurement function as claimed in claim 1, characterized in that: The gear set includes a driving gear, a gear seat and a driven gear; The driving gear and the driven gear can be rotatably mounted in the mounting position, a side wall of the driving gear away from the mounting position is fixedly connected to the gear seat, the roller is sleeved on the outer wall of the gear seat, and the central axes of the driving gear, the gear seat and the roller coincide with each other; The driven gear is rotatably mounted in the mounting position and the driven gear is meshed with the driving gear. A fixed shaft coaxial with the driven gear is fixedly mounted on one side of the driven gear away from the mounting position, and the cross section of the fixed shaft is polygonal. The rotary encoder is provided with a second through hole for plugging with the fixed shaft. The rotary encoder is inserted on the fixed shaft through a rotary code disk in the second through hole, so that the rotary code disk in the rotary encoder can rotate synchronously with the driven gear. There is a gap between the rotary encoder and the roller.
3. A laser rangefinder with curved surface measurement function as claimed in claim 2, characterized in that: A rubber sleeve is sleeved on the outer wall of the roller.
4. A laser rangefinder with curved surface measurement function as claimed in claim 3, characterized in that: The inner side wall of the shell is provided with a plurality of buckles, and the side wall of the bottom cover facing the panel is provided with a plurality of buckle plates which match the plurality of buckles one by one, and the bottom cover is buckled with the plurality of buckles on the shell through the plurality of buckle plates.
5. The laser rangefinder with curved surface measurement function as claimed in claim 3, characterized in that: The laser rangefinder also includes a circuit board; The circuit board is installed in the housing and is located between the gear set and the panel. A side wall of the rotary encoder away from the driven gear is fixedly connected to the circuit board. A clearance area is provided on the circuit board, and the laser ranging module is located in the clearance area.
6. A laser rangefinder with curved surface measurement function as claimed in claim 5, characterized in that: A support platform is provided on the bottom cover and the laser ranging module is installed on the support platform.
7. A laser rangefinder with curved surface measurement function as claimed in claim 6, characterized in that: The laser rangefinder also includes an indicator light and a light guide column; The side wall of the light guide column is snap-fitted with the inner wall of the shell, the top of the light guide column passes through the panel and is flush with a side wall of the panel away from the bottom cover, and the indicator light is fixedly mounted on the circuit board and located in the light guide column.
8. The laser rangefinder with curved surface measurement function as claimed in claim 3, characterized in that: A magnet is arranged on a side wall of the bottom cover facing the panel.
9. The laser rangefinder with curved surface measurement function as claimed in claim 7, characterized in that: A charging interface is fixedly mounted on one end of the circuit board away from the laser ranging module, a charging port corresponding to the charging interface is disposed on the outer wall of the housing, and a protective cover is detachably mounted on the charging port; A battery is also provided between the bottom cover and the circuit board, and the battery is electrically connected to the charging interface so as to charge the battery through the charging interface.
10. A laser rangefinder with curved surface measurement function as claimed in claim 9, characterized in that: The panel is provided with a screen and buttons, and the screen, the laser ranging module, the rotary encoder, the charging interface, the indicator light, the buttons and the battery are all electrically connected to the circuit board.