Angle adjusting mechanism
By introducing a motor with magnetic coils and coils to generate damping in the rangefinder bracket, the problem of slow angle adjustment in existing rangefinder brackets has been solved, achieving fast and stable angle adjustment, improving the efficiency of field topographic surveying and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-23
- Publication Date
- 2026-03-27
AI Technical Summary
Existing rangefinder brackets have poor angle adjustment capabilities in field topographic surveying, making it impossible to quickly adjust the rangefinder to the required angle, resulting in low work efficiency.
An angle adjustment mechanism consisting of a base plate, support column, support plate, and motor is adopted. The motor's built-in magnetic coil and coil generate a damping effect, enabling the rangefinder to quickly adjust and maintain its angle.
It improves the angle adjustment speed and stability of the rangefinder in field terrain surveying, enhances operational efficiency, reduces costs, and avoids noise problems.
Smart Images
Figure CN121739243A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of adjustment equipment technology, and in particular to an angle adjustment mechanism. Background Technology
[0002] A rangefinder is a tool for measuring distances. When conducting terrain surveying in the field, the rangefinder needs to be stably set up at the survey station to measure the distance between two points.
[0003] Due to uneven terrain such as mountains and farmland, the rangefinder needs to be adjusted to a suitable angle for convenient measurement. Currently, the angle adjustment function of the bracket is poor, making it impossible to quickly adjust the rangefinder to the required angle. This prevents staff from quickly calibrating the rangefinder's attitude, reducing the efficiency of field operations. Summary of the Invention
[0004] The purpose of this application is to provide an angle adjustment mechanism to solve the technical problem that existing supports have poor angle adjustment functions, which prevent the rangefinder from being quickly adjusted to the required angle for attitude calibration during field topographic surveying, thus reducing work efficiency.
[0005] To achieve the above objectives, this application provides an angle adjustment mechanism for use in a rangefinder. The angle adjustment mechanism includes a base plate, a support column, a support plate, and a first motor. The support column is disposed on the base plate, the first motor is disposed inside the support column, and the support plate is disposed outside the support column. The first motor includes a housing, a cover, a magnetic ring, a main shaft, a coil, and a bearing. The housing and the cover are connected to form a receiving cavity. The magnetic ring is disposed on the inner wall of the housing. The main shaft is connected to the housing and passes through the cover. The coil and the bearing are disposed in the receiving cavity. The bearing is rotatably sleeved on the main shaft and connected to the cover. The coil is sleeved on the outer periphery of the bearing. The cover is connected to the support plate, which is used to support the rangefinder. The support plate is connected to the mounting plate, the mounting plate is provided with a first protrusion, and the support column is provided with a first limiting hole facing the mounting plate; the first protrusion is assembled in the first limiting hole and is assembled and connected with the cover. The coil is capable of generating a damping effect with the magnetic coil when energized.
[0006] Optionally, the angle adjustment mechanism further includes a second motor, which has the same structure as the first motor; The support column includes a first column extending in a first direction and a second column extending in a second direction; The first motor is disposed in the first column, the second motor is disposed in the second column, and the cover of the second motor is connected to the substrate.
[0007] Optionally, the angle adjustment mechanism further includes an angle measuring component; The angle measuring component is located on the side of the cover away from the housing and is used to read the rotation angle of the cover relative to the housing.
[0008] Optionally, the angle measuring component includes a first sensing plate and a second sensing plate, the first sensing plate and the second sensing plate being spaced apart, the first sensing plate being disposed between the cover and the second sensing plate and connected to the main shaft, the cover being connected to the second sensing plate; the second sensing plate is used to connect the support plate; When the bearing drives the cover, the cover drives the second sensing plate to rotate relative to the first sensing plate, so as to read the rotation angle of the cover relative to the housing.
[0009] Optionally, the gap between the first sensing plate and the second sensing plate is less than or equal to 0.1 mm.
[0010] Optionally, the cover body is provided with a through hole; The coil is sleeved on one end of the bearing, and the other end of the bearing is sleeved in the through hole, so that the coil, the bearing and the cover are connected as one unit.
[0011] Optionally, the end of the main shaft away from the housing is provided with a first mounting hole, and the first sensing plate is provided with a second mounting hole; The angle adjustment mechanism also includes fasteners that pass through the first mounting hole and the second mounting hole to fix the first sensing plate to the main shaft.
[0012] Optionally, the cover is provided with a first connector, and the second sensor plate is provided with a second connector. The first connector and the second connector are detachably connected to achieve the assembly and fixation of the cover and the second sensor plate.
[0013] Optionally, the main shaft is provided with a first limiting part at one end away from the housing, and a second limiting part at one end away from the cover. The first limiting part and the second limiting part are used to restrict the bearing from moving axially along the main shaft.
[0014] Optionally, the end of the spindle away from the housing is provided with an external thread; The angle adjustment mechanism includes a nut, which is fitted onto the external thread to form the first limiting portion.
[0015] This application provides an angle adjustment mechanism, the advantages of which are: The angle adjustment mechanism includes a base plate, a support column, a support plate, and a first motor. The base plate is connected to the lower end of the support column, and the support plate is connected to the upper end of the support column via the first motor. The support column is vertically mounted on the base plate. In use, the base plate is placed at the measuring station, and the rangefinder is placed on the support plate, so that the angle adjustment mechanism is stably mounted at the measuring station.
[0016] In this application, the first motor incorporates a magnetic coil, a coil, and a bearing. The magnetic coil is mounted on the inner wall of the housing, and the main shaft is connected at the middle position of the housing. The magnetic coil, main shaft, and housing form a fixed assembly. The bearing is rotatably mounted on the main shaft and connected to the cover. The coil is sleeved on the outer circumference of the bearing. The coil, bearing, and cover form a rotating assembly, which is connected to a support plate via the cover. When the support plate rotates, the mounting plate drives the cover to rotate, thereby causing the rotating assembly inside the first motor to rotate. The first protrusion is fitted into the first limiting hole, providing a limiting function. The mounting plate can rotate stably relative to the support column, preventing wobbling and improving the smoothness and stability of the rangefinder during angle adjustment.
[0017] When the coil is energized, it generates a magnetic field. This magnetic field interacts with the magnetic field formed by the magnetic coil, creating a damping effect. If an external force is applied to rotate the support plate and adjust the horizontal angle of the rangefinder, the cover rotates accordingly. The rotating component rotates relative to the fixed component. However, due to the damping effect between the rotating and fixed components, when the applied external force is removed, the rotating component stops at its current position, thus keeping the support plate at its current angle without rotating or springing back. In this way, the rangefinder can remain at its current angle, allowing workers to quickly calibrate its attitude. This solves the problems of existing supports being unable to quickly adjust angles and maintain stable posture, improving efficiency in field operations. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the angle adjustment mechanism provided in the embodiments of this application; Figure 2 Another structural schematic diagram of the angle adjustment mechanism provided in the embodiments of this application; Figure 3 An exploded view of the angle adjustment mechanism provided in the embodiments of this application; Figure 4 A schematic diagram of the structure of the first motor provided in an embodiment of this application; Figure 5 A cross-sectional schematic diagram of the first motor provided in an embodiment of this application; Figure 6 An exploded schematic diagram of the first motor provided in an embodiment of this application; Figure 7 Another exploded view of the first motor provided in the embodiments of this application; Figure 8 This is a schematic diagram of the structure of the support column provided in an embodiment of this application; Figure 9 This is a schematic diagram of the support plate provided in an embodiment of this application.
[0020] The markings in the image are as follows: 10. Base plate; 11. Second protrusion; 20. Support column; 21. First column; 22. Second column; 23. First limiting hole; 24. Second limiting hole; 30. Support plate; 31. Mounting plate; 32. First protrusion; 40. First motor; 41. Housing; 42. Cover; 420. Through hole; 421. First connector; 43. Magnetic ring; 44. Spindle; 440. First mounting hole; 441. First limiting part; 442. Second limiting part; 443. External thread; 45. Coil; 46. Bearing; 50. Second motor; 60. Angle measuring assembly; 61. First sensing plate; 610. Second mounting hole; 62. Second sensing plate; 620. Second connector; 70. Nut; 100. Rangefinder; X, First direction; Y, Second direction. Detailed Implementation
[0021] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application.
[0022] In the description of this application, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc. used in this application to indicate the orientation or positional relationship are based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device and element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0023] In the description of this application, it should be understood that the terms "first," "second," etc., are used to describe various types of information, but these terms are not limited to them and are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.
[0024] When conducting topographic surveying in the field, rangefinders need to be stably mounted at the survey station to measure the distance between two points. However, uneven terrain such as mountains and farmland necessitates quick and precise adjustment of the rangefinder to the appropriate angle for measurement. Currently available rangefinder supports lack sufficient angle adjustment capabilities, failing to quickly adjust the rangefinder to the required angle. This makes it difficult for workers to quickly calibrate the rangefinder's attitude, reducing fieldwork efficiency. Furthermore, existing testing tools generally use gears and springs to achieve damping effects. Gears are relatively large, taking up space and are expensive; springs are prone to generating noise during use, and their production is relatively complex.
[0025] like Figures 1 to 5 As shown in the figure, this application provides an angle adjustment mechanism applied to a rangefinder 100. The angle adjustment mechanism includes a base plate 10, a support column 20, a support plate 30, and a first motor 40. The support column 20 is disposed on the base plate 10, the first motor 40 is disposed inside the support column 20, and the support plate 30 is disposed outside the support column 20. The first motor 40 includes a housing 41, a cover 42, a magnetic coil 43, a main shaft 44, a coil 45, and a bearing 46. The housing 41 and the cover 42 are connected to form a receiving cavity. The magnetic coil 43 is disposed on the inner wall of the housing 41. The main shaft 44 is connected to the housing 41 and passes through the cover 42. The coil 45 and the bearing 46 are disposed in the receiving cavity. The bearing 46 is rotatably sleeved on the main shaft 44 and connected to the cover 42. The coil 45 is sleeved on the outer periphery of the bearing 46. The cover 42 is connected to the support plate 30, which is used to support the rangefinder 100. The coil 45 can generate a damping effect with the magnetic coil 43 when energized.
[0026] In this embodiment, the angle adjustment mechanism is applied to the rangefinder. The angle adjustment mechanism includes a base plate 10, a support column 20, a support plate 30, and a first motor 40. The base plate 10 is connected to the lower end of the support column 20, and the support plate 30 is connected to the upper end of the support column 20 via the first motor 40. The support column 20 is vertically mounted on the base plate 10. In use, the base plate 10 is set up at the measuring station, and the rangefinder 100 is placed on the support plate 30, so that the angle adjustment mechanism is stably set up at the measuring station.
[0027] Based on the above technical solution, the first motor 40 incorporates a magnetic ring 43, a coil 45, and a bearing 46. The magnetic ring 43 is mounted on the inner wall of the housing 41, and the main shaft 44 is connected to the middle position of the housing 41. The magnetic ring 43, the main shaft 44, and the housing 41 form a fixed assembly. The bearing 46 is rotatably mounted on the main shaft 44 and is connected to the cover 42. The coil 45 is fitted around the outer circumference of the bearing 46. The coil 45, the bearing 46, and the cover 42 form a rotating assembly, which is connected to the support plate 30 through the cover 42. When the coil 45 is energized, it generates a magnetic field. This magnetic field interacts with the magnetic field generated by the magnetic ring 43, thereby producing a damping effect. If an external force is applied to rotate the support plate 30 to adjust the horizontal angle of the rangefinder 100, the cover 42 will rotate accordingly. The rotating assembly will rotate relative to the fixed assembly. However, due to the damping effect between the rotating assembly and the fixed assembly, when the applied external force is removed, the rotating assembly will stop at its current position, thus keeping the support plate 30 at its current angular position without rotating or rebounding. In this way, the rangefinder 100 can maintain its current angle position, making it convenient for staff to quickly calibrate the rangefinder's attitude. This solves the problem that existing supports cannot quickly adjust the angle and are difficult to maintain a stable attitude, thus improving the efficiency of field operations.
[0028] In this embodiment, the damping effect can also be achieved by utilizing the damping force generated when the motor is energized. Compared to testing tools that use gears to achieve a damping effect, this method avoids the use of relatively large gears, thus reducing the overall size of the mechanism. Furthermore, gears are expensive, while the main components in this solution are magnetic coil 43 and coil 45, which are relatively inexpensive, further reducing costs. This embodiment does not use springs, thus avoiding the noise problems that are common with springs, and reducing the manufacturing difficulty and process requirements of the mechanism.
[0029] In some embodiments, such as Figure 3 As shown, the angle adjustment mechanism also includes a second motor 50, which has the same structure as the first motor 40; the support column 20 includes a first column 21 extending along the first direction X and a second column 22 extending along the second direction Y; the first motor 40 is disposed in the first column 21, the second motor 50 is disposed in the second column 22, and the cover 42 of the second motor 50 is connected to the base plate 10.
[0030] Specifically, for ease of explanation, the angle adjustment mechanism is described as being placed vertically on a horizontal plane. The first direction X is the vertical direction of the angle adjustment mechanism, and the second direction Y is the horizontal direction of the angle adjustment mechanism. The support column 20 includes a vertically arranged first column 21 and a horizontally arranged second column 22. A first motor 40 is mounted inside the first column 21 and connected to the support plate 30 via its cover 42. When the coil 45 of the first motor 40 is energized, the support plate 30 rotates in the vertical plane to adjust the horizontal angle of the rangefinder 100. Through the damping action of the rotating and fixed components within the first motor 40, the rangefinder 100 can be maintained at its current angular position.
[0031] The second motor 50 is assembled inside the second column 22 and connected to the base plate 10 through its cover 42. When the coil 45 of the second motor 50 is energized, an external force is applied to rotate the second column 22 on the horizontal plane, causing the support column 20 to rotate relative to the base plate 10, thereby adjusting the direction of the rangefinder 100. Through the damping effect of the rotating and fixing components inside the second motor 50, the rangefinder 100 can be maintained in its current directional position. In this way, by using the first motor 40 and the second motor 50 in combination, the rangefinder 100 can be maintained in its current position after adjusting its horizontal angle and directional position, thereby achieving rapid calibration of the attitude of the rangefinder 100.
[0032] In some embodiments, such as Figure 3 , Figure 8 and Figure 9 As shown, the support plate 30 is connected to the mounting plate 31. The mounting plate 31 has a first protrusion 32 facing the first column 21, and the first column 21 has a first limiting hole 23 facing the mounting plate 31. The first protrusion 32 is fitted into the first limiting hole 23 and is assembled and connected to the cover 42 of the first motor 40. Thus, when the support plate 30 rotates, the mounting plate 31 drives the cover 42 to rotate, thereby causing the rotating component inside the first motor 40 to rotate. Since the first protrusion 32 is fitted into the first limiting hole 23, the first limiting hole 23 and the first protrusion 32 form a limiting effect, thereby allowing the mounting plate 31 to rotate stably relative to the first column 21, avoiding wobbling of the mounting plate 31 and the support plate 30, and improving the smoothness and stability of the rangefinder 100 during angle adjustment.
[0033] In some embodiments, such as Figure 3 and Figure 8As shown, the second column 22 is provided with a second limiting hole 24 facing the substrate 10, and the substrate 10 is provided with a second protrusion 11 facing the second column 22. The second protrusion 11 is fitted into the second limiting hole 24 and is assembled and connected to the cover 42 of the second motor 50. Thus, when the second column 22 rotates relative to the substrate 10, since the second protrusion 11 is fitted into the second limiting hole 24, the second limiting hole 24 and the second protrusion 11 form a limiting effect, thereby allowing the second column 22 to rotate stably relative to the substrate 10, preventing the support column 20 from shaking, and improving the smoothness and stability of the rangefinder 100 during the direction adjustment process.
[0034] In some embodiments, such as Figure 8 and Figure 9 As shown, the first column 21 is provided with at least two guide posts 25, which are spaced apart and arranged around the outer periphery of the first limiting hole 23; the mounting plate 31 is provided with an arc-shaped or ring-shaped guide groove 33, which is located around the outer periphery of the first protrusion 32. The guide posts 25 are slidably disposed in the guide groove 33. When the mounting plate 31 rotates relative to the first column 21, the guide posts 25 slide along the guide groove 33, and the mounting plate 31 rotates along the trajectory of the guide groove 33. This avoids the mounting plate 31 and the support plate 30 from deflecting, shaking or irregularly moving during rotation, and ensures the accuracy and stability of the rangefinder 100 during the adjustment process.
[0035] In some embodiments, such as Figure 4 As shown, the angle adjustment mechanism also includes an angle measuring component 60; the angle measuring component 60 is located on the side of the cover 42 away from the housing 41, and is used to read the rotation angle of the cover 42 relative to the housing 41.
[0036] Specifically, the angle measuring component 60 is installed on the cover 42 of the first motor 40 by means of screws, clips, etc. When the cover 42 rotates relative to the housing 41, the angle measuring component 60 and the cover 42 remain relatively stationary, thereby reading the rotation angle of the cover 42 relative to the housing 41, thereby obtaining the horizontal rotation angle of the rangefinder 100 and improving the accuracy of the rotation of the rangefinder 100.
[0037] In some embodiments, such as Figure 5 and Figure 7 As shown, the angle measuring component 60 includes a first sensing plate 61 and a second sensing plate 62, which are spaced apart. The first sensing plate 61 is located between the cover 42 and the second sensing plate 62 and is connected to the main shaft 44. The cover 42 is connected to the second sensing plate 62. The second sensing plate 62 is used to connect the support plate 30. When the bearing 46 drives the cover 42, the cover 42 drives the second sensing plate 62 to rotate relative to the first sensing plate 61, so that the rotation angle of the cover 42 relative to the housing 41 can be read.
[0038] Specifically, since the first sensing plate 61 is connected to the main shaft 44 (i.e., the first sensing plate 61 is a fixed component), and the second sensing plate 62 is connected to the cover 42 (i.e., the second sensing plate 62 is a rotating component), the rotation angle of the second sensing plate 62 relative to the first sensing plate 61 is the rotation angle of the cover 42 relative to the housing 41. Therefore, by reading the rotation angle of the second sensing plate 62 relative to the first sensing plate 61, the rotation angle of the cover 42 relative to the housing 41 can be read, and thus the horizontal rotation angle of the rangefinder 100 can be read.
[0039] In some embodiments, the first sensing plate 61 and the second sensing plate 62 employ photoelectric sensing and magnetic induction principles to achieve angle measurement. Taking photoelectric sensing as an example, the first sensing plate 61 is provided with a light-emitting element, and the second sensing plate 62 is provided with a photosensitive element. When the second sensing plate 62 rotates relative to the first sensing plate 61, the light signal received by the photosensitive element changes. This change has a specific correspondence with the rotation angle of the second sensing plate 62 relative to the first sensing plate 61, thereby enabling the measurement of the rotation angle of the second sensing plate 62 relative to the first sensing plate 61.
[0040] In some embodiments, the gap between the first sensing plate 61 and the second sensing plate 62 is less than or equal to 0.1 mm.
[0041] Specifically, the installation accuracy of the first sensing plate 61 and the second sensing plate 62 directly affects the accuracy of angle measurement. If the spacing between the two first sensing plates 61 and the second sensing plate 62 is uneven, the parallelism is poor, or there is tilt, the transmission path of the light signal will change, thereby affecting the light signal received by the photosensitive element. In this embodiment, when the gap is controlled within 0.1 mm, the scattering and attenuation of the light signal during propagation will be reduced, and the interference of external light on the photosensitive element can be reduced, thus improving the accuracy of angle measurement.
[0042] In some embodiments, such as Figure 5 and Figure 7 As shown, the cover 42 has a through hole 420; the coil 45 is sleeved on one end of the bearing 46, and the other end of the bearing 46 is sleeved in the through hole 420, so that the coil 45, the bearing 46 and the cover 42 are connected as one unit.
[0043] Specifically, coil 45 is sleeved on one end of bearing 46 and tightly fitted to bearing 46. The other end of bearing 46 is sleeved in through hole 420 and tightly fitted to cover 42. Thus, coil 45, bearing 46, and cover 42 are tightly fitted together to form the aforementioned rotating assembly, enhancing the structural stability of the rotating assembly. When the support plate 30 is rotated, the entire rotating assembly is driven to rotate together. In this way, the magnetic field formed by coil 45 and magnetic coil 43 in the energized state generates a damping force.
[0044] In some embodiments, such as Figure 7 As shown, the spindle 44 has a first mounting hole 440 at the end away from the housing 41, and the first sensing plate 61 has a second mounting hole 610; the angle adjustment mechanism also includes a fastener, which passes through the first mounting hole 440 and the second mounting hole 610, so that the first sensing plate 61 is fixedly connected to the spindle 44.
[0045] For example, the first mounting hole 440 and the second mounting hole 610 are threaded holes, and the fastener is a screw. After the rotating component is sleeved on the spindle 44, the first sensing plate 61 and the spindle 44 are fixedly connected by screws passing through the threaded holes of the first sensing plate 61 and the spindle 44 in sequence, so as to prevent the first sensing plate 61 from rotating or loosening.
[0046] In some embodiments, such as Figure 7 As shown, the cover 42 is provided with a first connector 421, and the second sensor plate 62 is provided with a second connector 620. The first connector 421 and the second connector 620 are detachably connected to achieve the assembly and fixation of the cover 42 and the second sensor plate 62.
[0047] For example, the first connector 421 includes a plurality of connecting posts spaced apart on the cover 42, and the second connector 620 includes a plurality of connecting holes spaced apart on the second sensing plate 62, with each connecting hole corresponding to a connecting post. The first connector 421 and the second connector 620 are then detachably connected via assembly connections (e.g., threaded connections) between the connecting holes and the connecting posts, thereby achieving the assembly and fixation of the cover 42 and the second sensing plate 62. With this configuration, the second sensing plate 62 can rotate with the cover 42, thus rotating relative to the first sensing plate 61.
[0048] In some embodiments, such as Figure 5 As shown, the end of the main shaft 44 away from the housing 41 is provided with a first limiting part 441, and the end of the main shaft 44 away from the cover 42 is provided with a second limiting part 442. The first limiting part 441 and the second limiting part 442 are used to restrict the bearing 46 from moving axially along the main shaft 44.
[0049] Specifically, a first limiting part 441 and a second limiting part 442 are respectively provided at both ends of the main shaft 44 to constrain the bearing 46 from two directions of the main shaft 44, so as to avoid excessive movement of the bearing 46 in the axial direction of the main shaft 44, which would affect the rotation effect of the rotating assembly.
[0050] The first limiting part 441 and the second limiting part 442 can take various forms, such as a shoulder, a retaining ring groove, or a retaining ring. For example, a stepped shoulder can be machined on the spindle 44 to directly block the axial movement of the bearing 46; the retaining ring groove with retaining ring is more flexible, and different specifications of retaining rings can be selected to adjust the limiting position and force as needed.
[0051] In some embodiments, such as Figure 6 and Figure 7 As shown, the end of the spindle 44 away from the housing 41 is provided with an external thread 443; the angle adjustment mechanism includes a nut 70, which is sleeved on the external thread 443 to form a first limiting part 441.
[0052] During installation, the bearing 46 is fitted onto the main shaft 44 and tightly connected to the cover 42. The axial position of the bearing 46 on the main shaft 44 is adjusted by rotating the nut 70, thereby restricting the movement of the bearing 46 and the rotating assembly towards the cover 42 along the axial direction of the main shaft 44. The operation is simple and easy to assemble.
[0053] It should be understood that the term "and / or" as used in this specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations. It should be noted that, herein, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.
[0054] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above descriptions are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. An angle adjustment mechanism, applied to a rangefinder (100), characterized in that, It includes a base plate (10), a support column (20), a support plate (30) and a first motor (40). The support column (20) is disposed on the base plate (10), the first motor (40) is disposed inside the support column (20), and the support plate (30) is disposed outside the support column (20). The first motor (40) includes a housing (41), a cover (42), a magnetic ring (43), a main shaft (44), a coil (45), and a bearing (46). The housing (41) and the cover (42) are connected to form a receiving cavity. The magnetic ring (43) is disposed on the inner wall of the housing (41). The main shaft (44) is connected to the housing (41) and passes through the cover (42). The coil (45) and the bearing (46) are disposed in the receiving cavity. The bearing (46) is rotatably sleeved on the main shaft (44). The bearing (46) is connected to the cover (42). The coil (45) is sleeved on the outer periphery of the bearing (46). The cover (42) is connected to the support plate (30). The support plate (30) is used to support the rangefinder (100). The support plate (30) is connected to the mounting plate (31), the mounting plate (31) is provided with a first protrusion (32), and the support column (20) is provided with a first limiting hole (23) facing the mounting plate (31); the first protrusion (32) is assembled in the first limiting hole (23) and is assembled and connected with the cover (42); The coil (45) can generate a damping effect with the magnetic coil (43) when energized.
2. The angle adjustment mechanism according to claim 1, characterized in that, It also includes a second motor (50), which has the same structure as the first motor (40); The support column (20) includes a first column (21) extending in a first direction (X) and a second column (22) extending in a second direction (Y). The first motor (40) is located inside the first column (21), and the second motor (50) is located inside the second column (22). The cover (42) of the second motor (50) is connected to the substrate (10).
3. The angle adjustment mechanism according to claim 1, characterized in that, It also includes an angle measurement component (60); The angle measuring component (60) is located on the side of the cover (42) away from the housing (41) and is used to read the rotation angle of the cover (42) relative to the housing (41).
4. The angle adjustment mechanism according to claim 3, characterized in that, The angle measuring component (60) includes a first sensing plate (61) and a second sensing plate (62). The first sensing plate (61) and the second sensing plate (62) are spaced apart. The first sensing plate (61) is located between the cover (42) and the second sensing plate (62) and is connected to the main shaft (46). The cover (42) is connected to the second sensing plate (62). The second sensing plate (62) is used to connect the support plate (30). When the bearing (46) drives the cover (42), the cover (42) drives the second sensing plate (62) to rotate relative to the first sensing plate (61) so as to read the rotation angle of the cover (42) relative to the housing (41).
5. The angle adjustment mechanism according to claim 4, characterized in that, The gap between the first sensing plate (61) and the second sensing plate (62) is less than or equal to 0.1 mm.
6. The angle adjustment mechanism according to claim 1, characterized in that, The cover (42) is provided with a through hole (420); The coil (45) is sleeved on one end of the bearing (46), and the other end of the bearing (46) is sleeved in the through hole (420) so that the coil (45), the bearing (46) and the cover (42) are connected as one unit.
7. The angle adjustment mechanism according to claim 4, characterized in that, The main shaft (44) has a first mounting hole (440) at one end away from the housing (41), and the first sensing plate (61) has a second mounting hole (610). The angle adjustment mechanism also includes fasteners that pass through the first mounting hole (440) and the second mounting hole (610) to fix the first sensing plate (61) to the main shaft (44).
8. The angle adjustment mechanism according to claim 4, characterized in that, The cover (42) is provided with a first connector (421), and the second sensor plate (62) is provided with a second connector (620). The first connector (421) and the second connector (620) are detachably connected so that the cover (42) and the second sensor plate (62) can be assembled and fixed.
9. The angle adjustment mechanism according to claim 1, characterized in that, The main shaft (44) is provided with a first limiting part (441) at one end away from the housing (41), and a second limiting part (442) at one end away from the cover (42). The first limiting part (441) and the second limiting part (442) are used to restrict the bearing (46) from moving axially along the main shaft (44).
10. The angle adjustment mechanism according to claim 9, characterized in that, The main shaft (44) has an external thread (443) at the end away from the housing (41). The angle adjustment mechanism includes a nut (70) which is fitted onto the external thread (443) to form the first limiting part (441).